; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -S -loop-predication -loop-predication-predicate-widenable-branches-to-deopt=true < %s 2>&1 | FileCheck %s ; RUN: opt -S -passes='require,loop(loop-predication)' -loop-predication-predicate-widenable-branches-to-deopt=true < %s 2>&1 | FileCheck %s ; RUN: opt -S -passes='require,require,loop(loop-predication)' -loop-predication-predicate-widenable-branches-to-deopt=true < %s 2>&1 | FileCheck %s declare void @llvm.experimental.guard(i1, ...) define i32 @unsigned_loop_0_to_n_ult_check(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @unsigned_loop_0_to_n_ult_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @unsigned_loop_0_to_n_ule_latch_ult_check(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @unsigned_loop_0_to_n_ule_latch_ult_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp ult i32 [[N]], [[LENGTH:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ule i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp ule i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @unsigned_loop_0_to_n_ugt_check(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @unsigned_loop_0_to_n_ugt_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ugt i32 %length, %i %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_ult_check(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_ult_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp sle i32 [[N]], [[LENGTH:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp slt i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_ult_check_length_range_known(i32* %array, i32* %length.ptr, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_ult_check_length_range_known( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: [[LENGTH:%.*]] = load i32, i32* [[LENGTH_PTR:%.*]], !range !2 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp sle i32 [[N]], [[LENGTH]] ; CHECK-NEXT: [[TMP1:%.*]] = and i1 true, [[TMP0]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP2]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 %length = load i32, i32* %length.ptr, !range !1 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp slt i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_inverse_latch_predicate(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_inverse_latch_predicate( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp slt i32 [[N]], [[LENGTH:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp sgt i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[EXIT_LOOPEXIT:%.*]], label [[LOOP]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp sgt i32 %i.next, %n br i1 %continue, label %exit, label %loop, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_sle_latch_ult_check(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_sle_latch_ult_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp slt i32 [[N]], [[LENGTH:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp sle i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp sle i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_preincrement_latch_check(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_preincrement_latch_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], -1 ; CHECK-NEXT: [[TMP1:%.*]] = icmp sle i32 [[N]], [[TMP0]] ; CHECK-NEXT: [[TMP2:%.*]] = icmp ult i32 0, [[LENGTH]] ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP4]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add i32 %i, 1 %continue = icmp slt i32 %i, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_preincrement_latch_check_postincrement_guard_check(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_preincrement_latch_check_postincrement_guard_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], -2 ; CHECK-NEXT: [[TMP1:%.*]] = icmp sle i32 [[N]], [[TMP0]] ; CHECK-NEXT: [[TMP2:%.*]] = icmp ult i32 1, [[LENGTH]] ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1 ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP4]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %i.next = add i32 %i, 1 %within.bounds = icmp ult i32 %i.next, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %continue = icmp slt i32 %i, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_sle_latch_offset_ult_check(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_sle_latch_offset_ult_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], -1 ; CHECK-NEXT: [[TMP1:%.*]] = icmp slt i32 [[N]], [[TMP0]] ; CHECK-NEXT: [[TMP2:%.*]] = icmp ult i32 1, [[LENGTH]] ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP4]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp sle i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %i.offset = add i32 %i, 1 %within.bounds = icmp ult i32 %i.offset, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add i32 %i, 1 %continue = icmp sle i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_offset_sle_latch_offset_ult_check(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_offset_sle_latch_offset_ult_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp slt i32 [[N]], [[LENGTH:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 1, [[LENGTH]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1 ; CHECK-NEXT: [[I_NEXT_OFFSET:%.*]] = add i32 [[I_NEXT]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp sle i32 [[I_NEXT_OFFSET]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %i.offset = add i32 %i, 1 %within.bounds = icmp ult i32 %i.offset, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add i32 %i, 1 %i.next.offset = add i32 %i.next, 1 %continue = icmp sle i32 %i.next.offset, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @unsupported_latch_pred_loop_0_to_n(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @unsupported_latch_pred_loop_0_to_n( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH:%.*]] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nsw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ne i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nsw i32 %i, 1 %continue = icmp ne i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_unsupported_iv_step(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_unsupported_iv_step( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH:%.*]] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nsw i32 [[I]], 2 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nsw i32 %i, 2 %continue = icmp slt i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_equal_iv_range_check(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_equal_iv_range_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp sle i32 [[N]], [[LENGTH:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[J:%.*]] = phi i32 [ [[J_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[J_NEXT]] = add nsw i32 [[J]], 1 ; CHECK-NEXT: [[I_NEXT]] = add nsw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %j = phi i32 [ %j.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %j, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %j.next = add nsw i32 %j, 1 %i.next = add nsw i32 %i, 1 %continue = icmp slt i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_start_to_n_offset_iv_range_check(i32* %array, i32 %start.i, i32 %start.j, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_start_to_n_offset_iv_range_check( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = add i32 [[LENGTH:%.*]], [[START_I:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = sub i32 [[TMP0]], [[START_J:%.*]] ; CHECK-NEXT: [[TMP2:%.*]] = icmp sle i32 [[N]], [[TMP1]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ult i32 [[START_J]], [[LENGTH]] ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[TMP2]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ [[START_I]], [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[J:%.*]] = phi i32 [ [[J_NEXT:%.*]], [[GUARDED]] ], [ [[START_J]], [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP5:%.*]] = and i1 [[TMP4]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP5]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[J_NEXT]] = add i32 [[J]], 1 ; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ %start.i, %loop.preheader ] %j = phi i32 [ %j.next, %guarded ], [ %start.j, %loop.preheader ] %within.bounds = icmp ult i32 %j, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %j.next = add i32 %j, 1 %i.next = add i32 %i, 1 %continue = icmp slt i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_different_iv_types(i32* %array, i16 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_different_iv_types( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[J:%.*]] = phi i16 [ [[J_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i16 [[J]], [[LENGTH:%.*]] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[J_NEXT]] = add i16 [[J]], 1 ; CHECK-NEXT: [[I_NEXT]] = add i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %j = phi i16 [ %j.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i16 %j, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %j.next = add i16 %j, 1 %i.next = add i32 %i, 1 %continue = icmp slt i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_0_to_n_different_iv_strides(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @signed_loop_0_to_n_different_iv_strides( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[J:%.*]] = phi i32 [ [[J_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[J]], [[LENGTH:%.*]] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[J_NEXT]] = add nsw i32 [[J]], 2 ; CHECK-NEXT: [[I_NEXT]] = add nsw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %j = phi i32 [ %j.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %j, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %j.next = add nsw i32 %j, 2 %i.next = add nsw i32 %i, 1 %continue = icmp slt i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @two_range_checks(i32* %array.1, i32 %length.1, i32* %array.2, i32 %length.2, i32 %n) { ; CHECK-LABEL: @two_range_checks( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH_2:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH_2]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[N]], [[LENGTH_1:%.*]] ; CHECK-NEXT: [[TMP4:%.*]] = icmp ult i32 0, [[LENGTH_1]] ; CHECK-NEXT: [[TMP5:%.*]] = and i1 [[TMP4]], [[TMP3]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP6:%.*]] = and i1 [[TMP2]], [[TMP5]] ; CHECK-NEXT: [[TMP7:%.*]] = and i1 [[TMP6]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP7]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_1_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_1:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_1_I:%.*]] = load i32, i32* [[ARRAY_1_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_1:%.*]] = add i32 [[LOOP_ACC]], [[ARRAY_1_I]] ; CHECK-NEXT: [[ARRAY_2_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_2:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_2_I:%.*]] = load i32, i32* [[ARRAY_2_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC_1]], [[ARRAY_2_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds.1 = icmp ult i32 %i, %length.1 %within.bounds.2 = icmp ult i32 %i, %length.2 %within.bounds = and i1 %within.bounds.1, %within.bounds.2 %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.1.i.ptr = getelementptr inbounds i32, i32* %array.1, i64 %i.i64 %array.1.i = load i32, i32* %array.1.i.ptr, align 4 %loop.acc.1 = add i32 %loop.acc, %array.1.i %array.2.i.ptr = getelementptr inbounds i32, i32* %array.2, i64 %i.i64 %array.2.i = load i32, i32* %array.2.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc.1, %array.2.i %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @three_range_checks(i32* %array.1, i32 %length.1, i32* %array.2, i32 %length.2, i32* %array.3, i32 %length.3, i32 %n) { ; CHECK-LABEL: @three_range_checks( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH_3:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH_3]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[N]], [[LENGTH_2:%.*]] ; CHECK-NEXT: [[TMP4:%.*]] = icmp ult i32 0, [[LENGTH_2]] ; CHECK-NEXT: [[TMP5:%.*]] = and i1 [[TMP4]], [[TMP3]] ; CHECK-NEXT: [[TMP6:%.*]] = icmp ule i32 [[N]], [[LENGTH_1:%.*]] ; CHECK-NEXT: [[TMP7:%.*]] = icmp ult i32 0, [[LENGTH_1]] ; CHECK-NEXT: [[TMP8:%.*]] = and i1 [[TMP7]], [[TMP6]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP9:%.*]] = and i1 [[TMP2]], [[TMP5]] ; CHECK-NEXT: [[TMP10:%.*]] = and i1 [[TMP9]], [[TMP8]] ; CHECK-NEXT: [[TMP11:%.*]] = and i1 [[TMP10]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP11]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_1_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_1:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_1_I:%.*]] = load i32, i32* [[ARRAY_1_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_1:%.*]] = add i32 [[LOOP_ACC]], [[ARRAY_1_I]] ; CHECK-NEXT: [[ARRAY_2_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_2:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_2_I:%.*]] = load i32, i32* [[ARRAY_2_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_2:%.*]] = add i32 [[LOOP_ACC_1]], [[ARRAY_2_I]] ; CHECK-NEXT: [[ARRAY_3_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_3:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_3_I:%.*]] = load i32, i32* [[ARRAY_3_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC_2]], [[ARRAY_3_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds.1 = icmp ult i32 %i, %length.1 %within.bounds.2 = icmp ult i32 %i, %length.2 %within.bounds.3 = icmp ult i32 %i, %length.3 %within.bounds.1.and.2 = and i1 %within.bounds.1, %within.bounds.2 %within.bounds = and i1 %within.bounds.1.and.2, %within.bounds.3 %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.1.i.ptr = getelementptr inbounds i32, i32* %array.1, i64 %i.i64 %array.1.i = load i32, i32* %array.1.i.ptr, align 4 %loop.acc.1 = add i32 %loop.acc, %array.1.i %array.2.i.ptr = getelementptr inbounds i32, i32* %array.2, i64 %i.i64 %array.2.i = load i32, i32* %array.2.i.ptr, align 4 %loop.acc.2 = add i32 %loop.acc.1, %array.2.i %array.3.i.ptr = getelementptr inbounds i32, i32* %array.3, i64 %i.i64 %array.3.i = load i32, i32* %array.3.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc.2, %array.3.i %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @three_guards(i32* %array.1, i32 %length.1, i32* %array.2, i32 %length.2, i32* %array.3, i32 %length.3, i32 %n) { ; CHECK-LABEL: @three_guards( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH_1:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH_1]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: [[TMP3:%.*]] = icmp ule i32 [[N]], [[LENGTH_2:%.*]] ; CHECK-NEXT: [[TMP4:%.*]] = icmp ult i32 0, [[LENGTH_2]] ; CHECK-NEXT: [[TMP5:%.*]] = and i1 [[TMP4]], [[TMP3]] ; CHECK-NEXT: [[TMP6:%.*]] = icmp ule i32 [[N]], [[LENGTH_3:%.*]] ; CHECK-NEXT: [[TMP7:%.*]] = icmp ult i32 0, [[LENGTH_3]] ; CHECK-NEXT: [[TMP8:%.*]] = and i1 [[TMP7]], [[TMP6]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED6:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED6]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP9:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP9]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_1_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_1:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_1_I:%.*]] = load i32, i32* [[ARRAY_1_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_1:%.*]] = add i32 [[LOOP_ACC]], [[ARRAY_1_I]] ; CHECK-NEXT: [[WIDENABLE_COND4:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP10:%.*]] = and i1 [[TMP5]], [[WIDENABLE_COND4]] ; CHECK-NEXT: br i1 [[TMP10]], label [[GUARDED1:%.*]], label [[DEOPT2:%.*]], !prof !0 ; CHECK: deopt2: ; CHECK-NEXT: [[DEOPTCALL3:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL3]] ; CHECK: guarded1: ; CHECK-NEXT: [[ARRAY_2_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_2:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_2_I:%.*]] = load i32, i32* [[ARRAY_2_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_2:%.*]] = add i32 [[LOOP_ACC_1]], [[ARRAY_2_I]] ; CHECK-NEXT: [[WIDENABLE_COND9:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP11:%.*]] = and i1 [[TMP8]], [[WIDENABLE_COND9]] ; CHECK-NEXT: br i1 [[TMP11]], label [[GUARDED6]], label [[DEOPT7:%.*]], !prof !0 ; CHECK: deopt7: ; CHECK-NEXT: [[DEOPTCALL8:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL8]] ; CHECK: guarded6: ; CHECK-NEXT: [[ARRAY_3_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY_3:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_3_I:%.*]] = load i32, i32* [[ARRAY_3_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC_2]], [[ARRAY_3_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED6]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded6, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded6 ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded6 ], [ 0, %loop.preheader ] %within.bounds.1 = icmp ult i32 %i, %length.1 %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds.1, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.1.i.ptr = getelementptr inbounds i32, i32* %array.1, i64 %i.i64 %array.1.i = load i32, i32* %array.1.i.ptr, align 4 %loop.acc.1 = add i32 %loop.acc, %array.1.i %within.bounds.2 = icmp ult i32 %i, %length.2 %widenable_cond4 = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond5 = and i1 %within.bounds.2, %widenable_cond4 br i1 %exiplicit_guard_cond5, label %guarded1, label %deopt2, !prof !0 deopt2: ; preds = %guarded %deoptcall3 = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall3 guarded1: ; preds = %guarded %array.2.i.ptr = getelementptr inbounds i32, i32* %array.2, i64 %i.i64 %array.2.i = load i32, i32* %array.2.i.ptr, align 4 %loop.acc.2 = add i32 %loop.acc.1, %array.2.i %within.bounds.3 = icmp ult i32 %i, %length.3 %widenable_cond9 = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond10 = and i1 %within.bounds.3, %widenable_cond9 br i1 %exiplicit_guard_cond10, label %guarded6, label %deopt7, !prof !0 deopt7: ; preds = %guarded1 %deoptcall8 = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall8 guarded6: ; preds = %guarded1 %array.3.i.ptr = getelementptr inbounds i32, i32* %array.3, i64 %i.i64 %array.3.i = load i32, i32* %array.3.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc.2, %array.3.i %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded6, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded6 ] ret i32 %result } define i32 @unsigned_loop_0_to_n_unrelated_condition(i32* %array, i32 %length, i32 %n, i32 %x) { ; CHECK-LABEL: @unsigned_loop_0_to_n_unrelated_condition( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[UNRELATED_COND:%.*]] = icmp ult i32 [[X:%.*]], [[LENGTH]] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[UNRELATED_COND]], [[TMP2]] ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP4]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %unrelated.cond = icmp ult i32 %x, %length %guard.cond = and i1 %within.bounds, %unrelated.cond %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %guard.cond, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @test_no_widened_conditions(i32* %array, i32 %length, i32 %n, i32 %x1, i32 %x2, i32 %x3) { ; CHECK-LABEL: @test_no_widened_conditions( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[UNRELATED_COND_1:%.*]] = icmp eq i32 [[X1:%.*]], [[I]] ; CHECK-NEXT: [[UNRELATED_COND_2:%.*]] = icmp eq i32 [[X2:%.*]], [[I]] ; CHECK-NEXT: [[UNRELATED_COND_3:%.*]] = icmp eq i32 [[X3:%.*]], [[I]] ; CHECK-NEXT: [[UNRELATED_COND_AND_1:%.*]] = and i1 [[UNRELATED_COND_1]], [[UNRELATED_COND_2]] ; CHECK-NEXT: [[GUARD_COND:%.*]] = and i1 [[UNRELATED_COND_AND_1]], [[UNRELATED_COND_3]] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[GUARD_COND]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %unrelated.cond.1 = icmp eq i32 %x1, %i %unrelated.cond.2 = icmp eq i32 %x2, %i %unrelated.cond.3 = icmp eq i32 %x3, %i %unrelated.cond.and.1 = and i1 %unrelated.cond.1, %unrelated.cond.2 %guard.cond = and i1 %unrelated.cond.and.1, %unrelated.cond.3 %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %guard.cond, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_start_to_n_loop_variant_bound(i32* %array, i32 %x, i32 %start, i32 %n) { ; CHECK-LABEL: @signed_loop_start_to_n_loop_variant_bound( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ [[START:%.*]], [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[BOUND:%.*]] = add i32 [[I]], [[X:%.*]] ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[BOUND]] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[WITHIN_BOUNDS]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nsw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ %start, %loop.preheader ] %bound = add i32 %i, %x %within.bounds = icmp ult i32 %i, %bound %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nsw i32 %i, 1 %continue = icmp slt i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @signed_loop_start_to_n_non_monotonic_predicate(i32* %array, i32 %x, i32 %start, i32 %n) { ; CHECK-LABEL: @signed_loop_start_to_n_non_monotonic_predicate( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp sle i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ [[START:%.*]], [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[GUARD_COND:%.*]] = icmp eq i32 [[I]], [[X:%.*]] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[GUARD_COND]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nsw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp slt i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp sle i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ %start, %loop.preheader ] %guard.cond = icmp eq i32 %i, %x %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %guard.cond, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nsw i32 %i, 1 %continue = icmp slt i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @unsigned_loop_0_to_n_hoist_length(i32* %array, i16 %length.i16, i32 %n) { ; CHECK-LABEL: @unsigned_loop_0_to_n_hoist_length( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[TMP0:%.*]] = zext i16 [[LENGTH_I16:%.*]] to i32 ; CHECK-NEXT: [[TMP1:%.*]] = icmp ule i32 [[N]], [[TMP0]] ; CHECK-NEXT: [[TMP2:%.*]] = icmp ult i32 0, [[TMP0]] ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[TMP1]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP4:%.*]] = and i1 [[TMP3]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP4]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %length = zext i16 %length.i16 to i32 %within.bounds = icmp ult i32 %i, %length %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } define i32 @unsigned_loop_0_to_n_cant_hoist_length(i32* %array, i32 %length, i32 %divider, i32 %n) { ; CHECK-LABEL: @unsigned_loop_0_to_n_cant_hoist_length( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[LENGTH_UDIV:%.*]] = udiv i32 [[LENGTH:%.*]], [[DIVIDER:%.*]] ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH_UDIV]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH_UDIV]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %length.udiv = udiv i32 %length, %divider %within.bounds = icmp ult i32 %i, %length.udiv %widenable_cond = call i1 @llvm.experimental.widenable.condition() %exiplicit_guard_cond = and i1 %within.bounds, %widenable_cond br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } ; Make sure that if we're going to consider a branch widenable, that the ; call to widenable condition is actually present. define i32 @negative_WC_required(i32* %array, i32 %length, i32 %n, i1 %unrelated) { ; CHECK-LABEL: @negative_WC_required( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[WITHIN_BOUNDS:%.*]] = icmp ult i32 [[I]], [[LENGTH:%.*]] ; CHECK-NEXT: [[NOT_WIDENABLE:%.*]] = and i1 [[WITHIN_BOUNDS]], [[UNRELATED:%.*]] ; CHECK-NEXT: br i1 [[NOT_WIDENABLE]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: store i32 0, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: ret i32 0 ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry br label %loop loop: %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %not_widenable = and i1 %within.bounds, %unrelated br i1 %not_widenable, label %guarded, label %deopt, !prof !0 deopt: %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 store i32 0, i32* %array.i.ptr, align 4 %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry ret i32 0 } define i32 @swapped_wb(i32* %array, i32 %length, i32 %n) { ; CHECK-LABEL: @swapped_wb( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[TMP5:%.*]] = icmp eq i32 [[N:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP5]], label [[EXIT:%.*]], label [[LOOP_PREHEADER:%.*]] ; CHECK: loop.preheader: ; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition() ; CHECK-NEXT: [[TMP0:%.*]] = icmp ule i32 [[N]], [[LENGTH:%.*]] ; CHECK-NEXT: [[TMP1:%.*]] = icmp ult i32 0, [[LENGTH]] ; CHECK-NEXT: [[TMP2:%.*]] = and i1 [[TMP1]], [[TMP0]] ; CHECK-NEXT: [[TMP3:%.*]] = and i1 [[TMP2]], [[WIDENABLE_COND]] ; CHECK-NEXT: br label [[LOOP:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[LOOP_ACC:%.*]] = phi i32 [ [[LOOP_ACC_NEXT:%.*]], [[GUARDED:%.*]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: [[I:%.*]] = phi i32 [ [[I_NEXT:%.*]], [[GUARDED]] ], [ 0, [[LOOP_PREHEADER]] ] ; CHECK-NEXT: br i1 [[TMP3]], label [[GUARDED]], label [[DEOPT:%.*]], !prof !0 ; CHECK: deopt: ; CHECK-NEXT: [[DEOPTCALL:%.*]] = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ; CHECK-NEXT: ret i32 [[DEOPTCALL]] ; CHECK: guarded: ; CHECK-NEXT: [[I_I64:%.*]] = zext i32 [[I]] to i64 ; CHECK-NEXT: [[ARRAY_I_PTR:%.*]] = getelementptr inbounds i32, i32* [[ARRAY:%.*]], i64 [[I_I64]] ; CHECK-NEXT: [[ARRAY_I:%.*]] = load i32, i32* [[ARRAY_I_PTR]], align 4 ; CHECK-NEXT: [[LOOP_ACC_NEXT]] = add i32 [[LOOP_ACC]], [[ARRAY_I]] ; CHECK-NEXT: [[I_NEXT]] = add nuw i32 [[I]], 1 ; CHECK-NEXT: [[CONTINUE:%.*]] = icmp ult i32 [[I_NEXT]], [[N]] ; CHECK-NEXT: br i1 [[CONTINUE]], label [[LOOP]], label [[EXIT_LOOPEXIT:%.*]], !prof !1 ; CHECK: exit.loopexit: ; CHECK-NEXT: [[LOOP_ACC_NEXT_LCSSA:%.*]] = phi i32 [ [[LOOP_ACC_NEXT]], [[GUARDED]] ] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[RESULT:%.*]] = phi i32 [ 0, [[ENTRY:%.*]] ], [ [[LOOP_ACC_NEXT_LCSSA]], [[EXIT_LOOPEXIT]] ] ; CHECK-NEXT: ret i32 [[RESULT]] ; entry: %tmp5 = icmp eq i32 %n, 0 br i1 %tmp5, label %exit, label %loop.preheader loop.preheader: ; preds = %entry %widenable_cond = call i1 @llvm.experimental.widenable.condition() br label %loop loop: ; preds = %guarded, %loop.preheader %loop.acc = phi i32 [ %loop.acc.next, %guarded ], [ 0, %loop.preheader ] %i = phi i32 [ %i.next, %guarded ], [ 0, %loop.preheader ] %within.bounds = icmp ult i32 %i, %length %exiplicit_guard_cond = and i1 %widenable_cond, %within.bounds br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0 deopt: ; preds = %loop %deoptcall = call i32 (...) @llvm.experimental.deoptimize.i32(i32 9) [ "deopt"() ] ret i32 %deoptcall guarded: ; preds = %loop %i.i64 = zext i32 %i to i64 %array.i.ptr = getelementptr inbounds i32, i32* %array, i64 %i.i64 %array.i = load i32, i32* %array.i.ptr, align 4 %loop.acc.next = add i32 %loop.acc, %array.i %i.next = add nuw i32 %i, 1 %continue = icmp ult i32 %i.next, %n br i1 %continue, label %loop, label %exit, !prof !2 exit: ; preds = %guarded, %entry %result = phi i32 [ 0, %entry ], [ %loop.acc.next, %guarded ] ret i32 %result } declare i32 @llvm.experimental.deoptimize.i32(...) ; Function Attrs: inaccessiblememonly nounwind declare i1 @llvm.experimental.widenable.condition() #0 attributes #0 = { inaccessiblememonly nounwind } !0 = !{!"branch_weights", i32 1048576, i32 1} !1 = !{i32 1, i32 -2147483648} !2 = !{!"branch_weights", i32 1024, i32 1}