; NOTE: Assertions have been autogenerated by utils/update_test_checks.py ; RUN: opt -correlated-propagation -S %s | FileCheck %s ; RUN: opt -passes=correlated-propagation -S %s | FileCheck %s target datalayout = "e-m:o-i64:64-f80:128-n8:16:32:64-S128" target triple = "x86_64-apple-macosx10.10.0" declare void @check1(i1) #1 declare void @check2(i1) #1 declare void @llvm.assume(i1) ; Make sure we propagate the value of %tmp35 to the true/false cases define void @test1(i64 %tmp35) { ; CHECK-LABEL: @test1( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[TMP36:%.*]] = icmp sgt i64 [[TMP35:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP36]], label [[BB_TRUE:%.*]], label [[BB_FALSE:%.*]] ; CHECK: bb_true: ; CHECK-NEXT: tail call void @check1(i1 false) [[ATTR1:#.*]] ; CHECK-NEXT: unreachable ; CHECK: bb_false: ; CHECK-NEXT: tail call void @check2(i1 true) [[ATTR1]] ; CHECK-NEXT: unreachable ; bb: %tmp36 = icmp sgt i64 %tmp35, 0 br i1 %tmp36, label %bb_true, label %bb_false bb_true: %tmp47 = icmp slt i64 %tmp35, 0 tail call void @check1(i1 %tmp47) #4 unreachable bb_false: %tmp48 = icmp sle i64 %tmp35, 0 tail call void @check2(i1 %tmp48) #4 unreachable } ; This is the same as test1 but with a diamond to ensure we ; get %tmp36 from both true and false BBs. define void @test2(i64 %tmp35, i1 %inner_cmp) { ; CHECK-LABEL: @test2( ; CHECK-NEXT: bb: ; CHECK-NEXT: [[TMP36:%.*]] = icmp sgt i64 [[TMP35:%.*]], 0 ; CHECK-NEXT: br i1 [[TMP36]], label [[BB_TRUE:%.*]], label [[BB_FALSE:%.*]] ; CHECK: bb_true: ; CHECK-NEXT: br i1 [[INNER_CMP:%.*]], label [[INNER_TRUE:%.*]], label [[INNER_FALSE:%.*]] ; CHECK: inner_true: ; CHECK-NEXT: br label [[MERGE:%.*]] ; CHECK: inner_false: ; CHECK-NEXT: br label [[MERGE]] ; CHECK: merge: ; CHECK-NEXT: tail call void @check1(i1 false) ; CHECK-NEXT: unreachable ; CHECK: bb_false: ; CHECK-NEXT: tail call void @check2(i1 true) [[ATTR1]] ; CHECK-NEXT: unreachable ; bb: %tmp36 = icmp sgt i64 %tmp35, 0 br i1 %tmp36, label %bb_true, label %bb_false bb_true: br i1 %inner_cmp, label %inner_true, label %inner_false inner_true: br label %merge inner_false: br label %merge merge: %tmp47 = icmp slt i64 %tmp35, 0 tail call void @check1(i1 %tmp47) #0 unreachable bb_false: %tmp48 = icmp sle i64 %tmp35, 0 tail call void @check2(i1 %tmp48) #4 unreachable } ; Make sure binary operator transfer functions are run when RHS is non-constant define i1 @test3(i32 %x, i32 %y) #0 { ; CHECK-LABEL: @test3( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 10 ; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]] ; CHECK: cont1: ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 10 ; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]] ; CHECK: cont2: ; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[X]], [[Y]] ; CHECK-NEXT: br label [[OUT]] ; CHECK: out: ; CHECK-NEXT: ret i1 true ; entry: %cmp1 = icmp ult i32 %x, 10 br i1 %cmp1, label %cont1, label %out cont1: %cmp2 = icmp ult i32 %y, 10 br i1 %cmp2, label %cont2, label %out cont2: %add = add i32 %x, %y %cmp3 = icmp ult i32 %add, 25 br label %out out: %ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont2 ] ret i1 %ret } ; Same as previous but make sure nobody gets over-zealous define i1 @test4(i32 %x, i32 %y) #0 { ; CHECK-LABEL: @test4( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 10 ; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]] ; CHECK: cont1: ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 10 ; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]] ; CHECK: cont2: ; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[X]], [[Y]] ; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i32 [[ADD]], 15 ; CHECK-NEXT: br label [[OUT]] ; CHECK: out: ; CHECK-NEXT: [[RET:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ true, [[CONT1]] ], [ [[CMP3]], [[CONT2]] ] ; CHECK-NEXT: ret i1 [[RET]] ; entry: %cmp1 = icmp ult i32 %x, 10 br i1 %cmp1, label %cont1, label %out cont1: %cmp2 = icmp ult i32 %y, 10 br i1 %cmp2, label %cont2, label %out cont2: %add = add i32 %x, %y %cmp3 = icmp ult i32 %add, 15 br label %out out: %ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont2 ] ret i1 %ret } ; Make sure binary operator transfer functions are run when RHS is non-constant define i1 @test5(i32 %x, i32 %y) #0 { ; CHECK-LABEL: @test5( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 5 ; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]] ; CHECK: cont1: ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 5 ; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]] ; CHECK: cont2: ; CHECK-NEXT: [[SHIFTED:%.*]] = shl nuw nsw i32 [[X]], [[Y]] ; CHECK-NEXT: br label [[OUT]] ; CHECK: out: ; CHECK-NEXT: ret i1 true ; entry: %cmp1 = icmp ult i32 %x, 5 br i1 %cmp1, label %cont1, label %out cont1: %cmp2 = icmp ult i32 %y, 5 br i1 %cmp2, label %cont2, label %out cont2: %shifted = shl i32 %x, %y %cmp3 = icmp ult i32 %shifted, 65536 br label %out out: %ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont2 ] ret i1 %ret } ; Same as previous but make sure nobody gets over-zealous define i1 @test6(i32 %x, i32 %y) #0 { ; CHECK-LABEL: @test6( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i32 [[X:%.*]], 5 ; CHECK-NEXT: br i1 [[CMP1]], label [[CONT1:%.*]], label [[OUT:%.*]] ; CHECK: cont1: ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[Y:%.*]], 15 ; CHECK-NEXT: br i1 [[CMP2]], label [[CONT2:%.*]], label [[OUT]] ; CHECK: cont2: ; CHECK-NEXT: [[SHIFTED:%.*]] = shl nuw nsw i32 [[X]], [[Y]] ; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i32 [[SHIFTED]], 65536 ; CHECK-NEXT: br label [[OUT]] ; CHECK: out: ; CHECK-NEXT: [[RET:%.*]] = phi i1 [ true, [[ENTRY:%.*]] ], [ true, [[CONT1]] ], [ [[CMP3]], [[CONT2]] ] ; CHECK-NEXT: ret i1 [[RET]] ; entry: %cmp1 = icmp ult i32 %x, 5 br i1 %cmp1, label %cont1, label %out cont1: %cmp2 = icmp ult i32 %y, 15 br i1 %cmp2, label %cont2, label %out cont2: %shifted = shl i32 %x, %y %cmp3 = icmp ult i32 %shifted, 65536 br label %out out: %ret = phi i1 [ true, %entry], [ true, %cont1 ], [ %cmp3, %cont2 ] ret i1 %ret } define i1 @test7(i32 %a, i32 %b) { ; CHECK-LABEL: @test7( ; CHECK-NEXT: begin: ; CHECK-NEXT: [[CMP0:%.*]] = icmp sge i32 [[A:%.*]], 0 ; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0 ; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]] ; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]] ; CHECK: bb: ; CHECK-NEXT: [[ADD:%.*]] = add nuw i32 [[A]], [[B]] ; CHECK-NEXT: [[RES:%.*]] = icmp sge i32 [[ADD]], 0 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ] ; CHECK-NEXT: ret i1 [[IV]] ; begin: %cmp0 = icmp sge i32 %a, 0 %cmp1 = icmp sge i32 %b, 0 %br = and i1 %cmp0, %cmp1 br i1 %br, label %bb, label %exit bb: %add = add i32 %a, %b %res = icmp sge i32 %add, 0 br label %exit exit: %iv = phi i1 [ true, %begin ], [ %res, %bb ] ret i1 %iv } define i1 @test8(i32 %a, i32 %b) { ; CHECK-LABEL: @test8( ; CHECK-NEXT: begin: ; CHECK-NEXT: [[CMP0:%.*]] = icmp sge i32 [[A:%.*]], 0 ; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0 ; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]] ; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]] ; CHECK: bb: ; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i32 [[A]], [[B]] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: ret i1 true ; begin: %cmp0 = icmp sge i32 %a, 0 %cmp1 = icmp sge i32 %b, 0 %br = and i1 %cmp0, %cmp1 br i1 %br, label %bb, label %exit bb: %add = add nsw i32 %a, %b %res = icmp sge i32 %add, 0 br label %exit exit: %iv = phi i1 [ true, %begin ], [ %res, %bb ] ret i1 %iv } define i1 @test10(i32 %a, i32 %b) { ; CHECK-LABEL: @test10( ; CHECK-NEXT: begin: ; CHECK-NEXT: [[CMP:%.*]] = icmp uge i32 [[A:%.*]], -256 ; CHECK-NEXT: br i1 [[CMP]], label [[BB:%.*]], label [[EXIT:%.*]] ; CHECK: bb: ; CHECK-NEXT: [[ADD:%.*]] = add i32 [[A]], [[B:%.*]] ; CHECK-NEXT: [[RES:%.*]] = icmp uge i32 [[ADD]], -256 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ] ; CHECK-NEXT: ret i1 [[IV]] ; begin: %cmp = icmp uge i32 %a, 4294967040 br i1 %cmp, label %bb, label %exit bb: %add = add i32 %a, %b %res = icmp uge i32 %add, 4294967040 br label %exit exit: %iv = phi i1 [ true, %begin ], [ %res, %bb ] ret i1 %iv } define i1 @test11(i32 %a, i32 %b) { ; CHECK-LABEL: @test11( ; CHECK-NEXT: begin: ; CHECK-NEXT: [[CMP:%.*]] = icmp uge i32 [[A:%.*]], -256 ; CHECK-NEXT: br i1 [[CMP]], label [[BB:%.*]], label [[EXIT:%.*]] ; CHECK: bb: ; CHECK-NEXT: [[ADD:%.*]] = add nuw i32 [[A]], [[B:%.*]] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: ret i1 true ; begin: %cmp = icmp uge i32 %a, 4294967040 br i1 %cmp, label %bb, label %exit bb: %add = add nuw i32 %a, %b %res = icmp uge i32 %add, 4294967040 br label %exit exit: %iv = phi i1 [ true, %begin ], [ %res, %bb ] ret i1 %iv } define i1 @test12(i32 %x) { ; CHECK-LABEL: @test12( ; CHECK-NEXT: [[ZEXT:%.*]] = zext i32 [[X:%.*]] to i64 ; CHECK-NEXT: [[MUL:%.*]] = mul nuw nsw i64 [[ZEXT]], 7 ; CHECK-NEXT: [[SHR:%.*]] = lshr i64 [[MUL]], 32 ; CHECK-NEXT: [[TRUNC:%.*]] = trunc i64 [[SHR]] to i32 ; CHECK-NEXT: ret i1 true ; %zext = zext i32 %x to i64 %mul = mul nuw i64 %zext, 7 %shr = lshr i64 %mul, 32 %trunc = trunc i64 %shr to i32 %cmp = icmp ult i32 %trunc, 7 ret i1 %cmp } define i1 @test13(i8 %x, i64* %p) { ; CHECK-LABEL: @test13( ; CHECK-NEXT: [[ZEXT:%.*]] = zext i8 [[X:%.*]] to i64 ; CHECK-NEXT: [[ADD:%.*]] = add nuw nsw i64 [[ZEXT]], 128 ; CHECK-NEXT: store i64 [[ADD]], i64* [[P:%.*]], align 8 ; CHECK-NEXT: ret i1 true ; %zext = zext i8 %x to i64 %add = add nuw nsw i64 %zext, 128 %cmp = icmp ult i64 %add, 384 ; Without this extra use, InstSimplify could handle this store i64 %add, i64* %p ret i1 %cmp } define i1 @test14(i32 %a, i32 %b) { ; CHECK-LABEL: @test14( ; CHECK-NEXT: begin: ; CHECK-NEXT: [[CMP0:%.*]] = icmp sge i32 [[A:%.*]], 0 ; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0 ; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]] ; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]] ; CHECK: bb: ; CHECK-NEXT: [[SUB:%.*]] = sub nsw i32 [[A]], [[B]] ; CHECK-NEXT: [[RES:%.*]] = icmp sge i32 [[SUB]], 0 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ] ; CHECK-NEXT: ret i1 [[IV]] ; begin: %cmp0 = icmp sge i32 %a, 0 %cmp1 = icmp sge i32 %b, 0 %br = and i1 %cmp0, %cmp1 br i1 %br, label %bb, label %exit bb: %sub = sub i32 %a, %b %res = icmp sge i32 %sub, 0 br label %exit exit: %iv = phi i1 [ true, %begin ], [ %res, %bb ] ret i1 %iv } define i1 @test15(i32 %a, i32 %b) { ; CHECK-LABEL: @test15( ; CHECK-NEXT: begin: ; CHECK-NEXT: [[CMP0:%.*]] = icmp sge i32 [[A:%.*]], 0 ; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0 ; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]] ; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]] ; CHECK: bb: ; CHECK-NEXT: [[SUB:%.*]] = sub nsw i32 [[A]], [[B]] ; CHECK-NEXT: [[RES:%.*]] = icmp sge i32 [[SUB]], 0 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ] ; CHECK-NEXT: ret i1 [[IV]] ; begin: %cmp0 = icmp sge i32 %a, 0 %cmp1 = icmp sge i32 %b, 0 %br = and i1 %cmp0, %cmp1 br i1 %br, label %bb, label %exit bb: %sub = sub nsw i32 %a, %b %res = icmp sge i32 %sub, 0 br label %exit exit: %iv = phi i1 [ true, %begin ], [ %res, %bb ] ret i1 %iv } define i1 @test16(i32 %a, i32 %b) { ; CHECK-LABEL: @test16( ; CHECK-NEXT: begin: ; CHECK-NEXT: [[CMP0:%.*]] = icmp sge i32 [[A:%.*]], 0 ; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0 ; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]] ; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]] ; CHECK: bb: ; CHECK-NEXT: [[SUB:%.*]] = sub nuw nsw i32 [[A]], [[B]] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: ret i1 true ; begin: %cmp0 = icmp sge i32 %a, 0 %cmp1 = icmp sge i32 %b, 0 %br = and i1 %cmp0, %cmp1 br i1 %br, label %bb, label %exit bb: %sub = sub nuw i32 %a, %b %res = icmp sge i32 %sub, 0 br label %exit exit: %iv = phi i1 [ true, %begin ], [ %res, %bb ] ret i1 %iv } define i1 @test17(i32 %a, i32 %b) { ; CHECK-LABEL: @test17( ; CHECK-NEXT: begin: ; CHECK-NEXT: [[CMP0:%.*]] = icmp sle i32 [[A:%.*]], 0 ; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0 ; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]] ; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]] ; CHECK: bb: ; CHECK-NEXT: [[SUB:%.*]] = sub i32 [[A]], [[B]] ; CHECK-NEXT: [[RES:%.*]] = icmp sle i32 [[SUB]], 0 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ] ; CHECK-NEXT: ret i1 [[IV]] ; begin: %cmp0 = icmp sle i32 %a, 0 %cmp1 = icmp sge i32 %b, 0 %br = and i1 %cmp0, %cmp1 br i1 %br, label %bb, label %exit bb: %sub = sub i32 %a, %b %res = icmp sle i32 %sub, 0 br label %exit exit: %iv = phi i1 [ true, %begin ], [ %res, %bb ] ret i1 %iv } define i1 @test18(i32 %a, i32 %b) { ; CHECK-LABEL: @test18( ; CHECK-NEXT: begin: ; CHECK-NEXT: [[CMP0:%.*]] = icmp sle i32 [[A:%.*]], 0 ; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0 ; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]] ; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]] ; CHECK: bb: ; CHECK-NEXT: [[SUB:%.*]] = sub nuw i32 [[A]], [[B]] ; CHECK-NEXT: [[RES:%.*]] = icmp sle i32 [[SUB]], 0 ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: [[IV:%.*]] = phi i1 [ true, [[BEGIN:%.*]] ], [ [[RES]], [[BB]] ] ; CHECK-NEXT: ret i1 [[IV]] ; begin: %cmp0 = icmp sle i32 %a, 0 %cmp1 = icmp sge i32 %b, 0 %br = and i1 %cmp0, %cmp1 br i1 %br, label %bb, label %exit bb: %sub = sub nuw i32 %a, %b %res = icmp sle i32 %sub, 0 br label %exit exit: %iv = phi i1 [ true, %begin ], [ %res, %bb ] ret i1 %iv } define i1 @test19(i32 %a, i32 %b) { ; CHECK-LABEL: @test19( ; CHECK-NEXT: begin: ; CHECK-NEXT: [[CMP0:%.*]] = icmp sle i32 [[A:%.*]], 0 ; CHECK-NEXT: [[CMP1:%.*]] = icmp sge i32 [[B:%.*]], 0 ; CHECK-NEXT: [[BR:%.*]] = and i1 [[CMP0]], [[CMP1]] ; CHECK-NEXT: br i1 [[BR]], label [[BB:%.*]], label [[EXIT:%.*]] ; CHECK: bb: ; CHECK-NEXT: [[SUB:%.*]] = sub nsw i32 [[A]], [[B]] ; CHECK-NEXT: br label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: ret i1 true ; begin: %cmp0 = icmp sle i32 %a, 0 %cmp1 = icmp sge i32 %b, 0 %br = and i1 %cmp0, %cmp1 br i1 %br, label %bb, label %exit bb: %sub = sub nsw i32 %a, %b %res = icmp sle i32 %sub, 0 br label %exit exit: %iv = phi i1 [ true, %begin ], [ %res, %bb ] ret i1 %iv } define i1 @test_br_cmp_with_offset(i64 %idx) { ; CHECK-LABEL: @test_br_cmp_with_offset( ; CHECK-NEXT: [[IDX_OFF1:%.*]] = add i64 [[IDX:%.*]], -5 ; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i64 [[IDX_OFF1]], 3 ; CHECK-NEXT: br i1 [[CMP1]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: [[IDX_OFF2:%.*]] = add nsw i64 [[IDX]], -1 ; CHECK-NEXT: ret i1 true ; CHECK: if.false: ; CHECK-NEXT: ret i1 undef ; %idx.off1 = add i64 %idx, -5 %cmp1 = icmp ult i64 %idx.off1, 3 br i1 %cmp1, label %if.true, label %if.false if.true: %idx.off2 = add i64 %idx, -1 %cmp2 = icmp ult i64 %idx.off2, 10 ret i1 %cmp2 if.false: ret i1 undef } define i1 @test_assume_cmp_with_offset(i64 %idx) { ; CHECK-LABEL: @test_assume_cmp_with_offset( ; CHECK-NEXT: [[IDX_OFF1:%.*]] = add i64 [[IDX:%.*]], -5 ; CHECK-NEXT: [[CMP1:%.*]] = icmp ult i64 [[IDX_OFF1]], 3 ; CHECK-NEXT: tail call void @llvm.assume(i1 [[CMP1]]) ; CHECK-NEXT: [[IDX_OFF2:%.*]] = add nsw i64 [[IDX]], -1 ; CHECK-NEXT: ret i1 true ; %idx.off1 = add i64 %idx, -5 %cmp1 = icmp ult i64 %idx.off1, 3 tail call void @llvm.assume(i1 %cmp1) %idx.off2 = add i64 %idx, -1 %cmp2 = icmp ult i64 %idx.off2, 10 ret i1 %cmp2 } define void @test_cmp_phi(i8 %a) { ; CHECK-LABEL: @test_cmp_phi( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[C0:%.*]] = icmp ult i8 [[A:%.*]], 2 ; CHECK-NEXT: br i1 [[C0]], label [[LOOP:%.*]], label [[EXIT:%.*]] ; CHECK: loop: ; CHECK-NEXT: [[P:%.*]] = phi i8 [ [[A]], [[ENTRY:%.*]] ], [ [[B:%.*]], [[LOOP]] ] ; CHECK-NEXT: [[C1:%.*]] = icmp ne i8 [[P]], 0 ; CHECK-NEXT: [[C4:%.*]] = call i1 @get_bool() ; CHECK-NEXT: [[B]] = zext i1 [[C4]] to i8 ; CHECK-NEXT: br i1 [[C1]], label [[LOOP]], label [[EXIT]] ; CHECK: exit: ; CHECK-NEXT: ret void ; entry: %c0 = icmp ult i8 %a, 2 br i1 %c0, label %loop, label %exit loop: %p = phi i8 [ %a, %entry ], [ %b, %loop ] %c1 = icmp ne i8 %p, 0 %c2 = icmp ne i8 %p, 2 %c3 = and i1 %c1, %c2 %c4 = call i1 @get_bool() %b = zext i1 %c4 to i8 br i1 %c3, label %loop, label %exit exit: ret void } declare i1 @get_bool() define void @test_icmp_or_ult(i32 %a, i32 %b) { ; CHECK-LABEL: @test_icmp_or_ult( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[OR]], 42 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: [[CMP4:%.*]] = icmp uge i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP4]]) ; CHECK-NEXT: [[CMP5:%.*]] = icmp uge i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP5]]) ; CHECK-NEXT: ret void ; entry: %or = or i32 %a, %b %cmp = icmp ult i32 %or, 42 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp ult i32 %a, 42 call void @check1(i1 %cmp2) %cmp3 = icmp ult i32 %b, 42 call void @check1(i1 %cmp3) ret void if.false: %cmp4 = icmp uge i32 %a, 42 call void @check1(i1 %cmp4) %cmp5 = icmp uge i32 %b, 42 call void @check1(i1 %cmp5) ret void } define void @test_icmp_or_ule(i32 %a, i32 %b) { ; CHECK-LABEL: @test_icmp_or_ule( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp ule i32 [[OR]], 42 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: [[CMP4:%.*]] = icmp ugt i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP4]]) ; CHECK-NEXT: [[CMP5:%.*]] = icmp ugt i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP5]]) ; CHECK-NEXT: ret void ; entry: %or = or i32 %a, %b %cmp = icmp ule i32 %or, 42 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp ule i32 %a, 42 call void @check1(i1 %cmp2) %cmp3 = icmp ule i32 %b, 42 call void @check1(i1 %cmp3) ret void if.false: %cmp4 = icmp ugt i32 %a, 42 call void @check1(i1 %cmp4) %cmp5 = icmp ugt i32 %b, 42 call void @check1(i1 %cmp5) ret void } define void @test_icmp_or_ugt(i32 %a, i32 %b) { ; CHECK-LABEL: @test_icmp_or_ugt( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[OR]], 42 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: [[CMP2:%.*]] = icmp ugt i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP2]]) ; CHECK-NEXT: [[CMP3:%.*]] = icmp ugt i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP3]]) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: ret void ; entry: %or = or i32 %a, %b %cmp = icmp ugt i32 %or, 42 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp ugt i32 %a, 42 call void @check1(i1 %cmp2) %cmp3 = icmp ugt i32 %b, 42 call void @check1(i1 %cmp3) ret void if.false: %cmp4 = icmp ule i32 %a, 42 call void @check1(i1 %cmp4) %cmp5 = icmp ule i32 %b, 42 call void @check1(i1 %cmp5) ret void } define void @test_icmp_or_uge(i32 %a, i32 %b) { ; CHECK-LABEL: @test_icmp_or_uge( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp uge i32 [[OR]], 42 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: [[CMP2:%.*]] = icmp uge i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP2]]) ; CHECK-NEXT: [[CMP3:%.*]] = icmp uge i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP3]]) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: ret void ; entry: %or = or i32 %a, %b %cmp = icmp uge i32 %or, 42 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp uge i32 %a, 42 call void @check1(i1 %cmp2) %cmp3 = icmp uge i32 %b, 42 call void @check1(i1 %cmp3) ret void if.false: %cmp4 = icmp ult i32 %a, 42 call void @check1(i1 %cmp4) %cmp5 = icmp ult i32 %b, 42 call void @check1(i1 %cmp5) ret void } define void @test_icmp_or_slt(i32 %a, i32 %b) { ; CHECK-LABEL: @test_icmp_or_slt( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[OR:%.*]] = or i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp slt i32 [[OR]], 42 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: [[CMP2:%.*]] = icmp slt i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP2]]) ; CHECK-NEXT: [[CMP3:%.*]] = icmp slt i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP3]]) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: [[CMP4:%.*]] = icmp sge i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP4]]) ; CHECK-NEXT: [[CMP5:%.*]] = icmp sge i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP5]]) ; CHECK-NEXT: ret void ; entry: %or = or i32 %a, %b %cmp = icmp slt i32 %or, 42 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp slt i32 %a, 42 call void @check1(i1 %cmp2) %cmp3 = icmp slt i32 %b, 42 call void @check1(i1 %cmp3) ret void if.false: %cmp4 = icmp sge i32 %a, 42 call void @check1(i1 %cmp4) %cmp5 = icmp sge i32 %b, 42 call void @check1(i1 %cmp5) ret void } define void @test_icmp_and_ugt(i32 %a, i32 %b) { ; CHECK-LABEL: @test_icmp_and_ugt( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp ugt i32 [[AND]], 42 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: [[CMP4:%.*]] = icmp ule i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP4]]) ; CHECK-NEXT: [[CMP5:%.*]] = icmp ule i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP5]]) ; CHECK-NEXT: ret void ; entry: %and = and i32 %a, %b %cmp = icmp ugt i32 %and, 42 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp ugt i32 %a, 42 call void @check1(i1 %cmp2) %cmp3 = icmp ugt i32 %b, 42 call void @check1(i1 %cmp3) ret void if.false: %cmp4 = icmp ule i32 %a, 42 call void @check1(i1 %cmp4) %cmp5 = icmp ule i32 %b, 42 call void @check1(i1 %cmp5) ret void } define void @test_icmp_and_uge(i32 %a, i32 %b) { ; CHECK-LABEL: @test_icmp_and_uge( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp uge i32 [[AND]], 42 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: [[CMP4:%.*]] = icmp ult i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP4]]) ; CHECK-NEXT: [[CMP5:%.*]] = icmp ult i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP5]]) ; CHECK-NEXT: ret void ; entry: %and = and i32 %a, %b %cmp = icmp uge i32 %and, 42 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp uge i32 %a, 42 call void @check1(i1 %cmp2) %cmp3 = icmp uge i32 %b, 42 call void @check1(i1 %cmp3) ret void if.false: %cmp4 = icmp ult i32 %a, 42 call void @check1(i1 %cmp4) %cmp5 = icmp ult i32 %b, 42 call void @check1(i1 %cmp5) ret void } define void @test_icmp_and_ult(i32 %a, i32 %b) { ; CHECK-LABEL: @test_icmp_and_ult( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp ult i32 [[AND]], 42 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: [[CMP2:%.*]] = icmp ult i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP2]]) ; CHECK-NEXT: [[CMP3:%.*]] = icmp ult i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP3]]) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: ret void ; entry: %and = and i32 %a, %b %cmp = icmp ult i32 %and, 42 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp ult i32 %a, 42 call void @check1(i1 %cmp2) %cmp3 = icmp ult i32 %b, 42 call void @check1(i1 %cmp3) ret void if.false: %cmp4 = icmp uge i32 %a, 42 call void @check1(i1 %cmp4) %cmp5 = icmp uge i32 %b, 42 call void @check1(i1 %cmp5) ret void } define void @test_icmp_and_sgt(i32 %a, i32 %b) { ; CHECK-LABEL: @test_icmp_and_sgt( ; CHECK-NEXT: entry: ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], [[B:%.*]] ; CHECK-NEXT: [[CMP:%.*]] = icmp sgt i32 [[AND]], 42 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: [[CMP2:%.*]] = icmp sgt i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP2]]) ; CHECK-NEXT: [[CMP3:%.*]] = icmp sgt i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP3]]) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: [[CMP4:%.*]] = icmp sle i32 [[A]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP4]]) ; CHECK-NEXT: [[CMP5:%.*]] = icmp sle i32 [[B]], 42 ; CHECK-NEXT: call void @check1(i1 [[CMP5]]) ; CHECK-NEXT: ret void ; entry: %and = and i32 %a, %b %cmp = icmp sgt i32 %and, 42 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp sgt i32 %a, 42 call void @check1(i1 %cmp2) %cmp3 = icmp sgt i32 %b, 42 call void @check1(i1 %cmp3) ret void if.false: %cmp4 = icmp sle i32 %a, 42 call void @check1(i1 %cmp4) %cmp5 = icmp sle i32 %b, 42 call void @check1(i1 %cmp5) ret void } define void @test_icmp_mask_two_values(i32 %a) { ; CHECK-LABEL: @test_icmp_mask_two_values( ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], -2 ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 10 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: call void @check1(i1 false) ; CHECK-NEXT: call void @check1(i1 false) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: ret void ; %and = and i32 %a, -2 %cmp = icmp eq i32 %and, 10 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp uge i32 %a, 10 call void @check1(i1 %cmp2) %cmp3 = icmp ule i32 %a, 11 call void @check1(i1 %cmp3) %cmp4 = icmp ult i32 %a, 10 call void @check1(i1 %cmp4) %cmp5 = icmp ugt i32 %a, 11 call void @check1(i1 %cmp5) ret void if.false: ret void } define void @test_icmp_mask_bit_set(i32 %a) { ; CHECK-LABEL: @test_icmp_mask_bit_set( ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], 32 ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 32 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: [[CMP3:%.*]] = icmp uge i32 [[A]], 33 ; CHECK-NEXT: call void @check1(i1 [[CMP3]]) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: ret void ; %and = and i32 %a, 32 %cmp = icmp eq i32 %and, 32 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp uge i32 %a, 32 call void @check1(i1 %cmp2) %cmp3 = icmp uge i32 %a, 33 call void @check1(i1 %cmp3) ret void if.false: ret void } define void @test_icmp_mask_bit_unset(i32 %a) { ; CHECK-LABEL: @test_icmp_mask_bit_unset( ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], 32 ; CHECK-NEXT: [[CMP:%.*]] = icmp eq i32 [[AND]], 0 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: call void @check1(i1 true) ; CHECK-NEXT: [[CMP3:%.*]] = icmp ule i32 [[A]], -34 ; CHECK-NEXT: call void @check1(i1 [[CMP3]]) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: ret void ; %and = and i32 %a, 32 %cmp = icmp eq i32 %and, 0 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp ule i32 %a, -33 call void @check1(i1 %cmp2) %cmp3 = icmp ule i32 %a, -34 call void @check1(i1 %cmp3) ret void if.false: ret void } define void @test_icmp_mask_wrong_predicate(i32 %a) { ; CHECK-LABEL: @test_icmp_mask_wrong_predicate( ; CHECK-NEXT: [[AND:%.*]] = and i32 [[A:%.*]], -2 ; CHECK-NEXT: [[CMP:%.*]] = icmp ne i32 [[AND]], 10 ; CHECK-NEXT: br i1 [[CMP]], label [[IF_TRUE:%.*]], label [[IF_FALSE:%.*]] ; CHECK: if.true: ; CHECK-NEXT: [[CMP2:%.*]] = icmp uge i32 [[A]], 10 ; CHECK-NEXT: call void @check1(i1 [[CMP2]]) ; CHECK-NEXT: [[CMP3:%.*]] = icmp ule i32 [[A]], 11 ; CHECK-NEXT: call void @check1(i1 [[CMP3]]) ; CHECK-NEXT: [[CMP4:%.*]] = icmp ult i32 [[A]], 10 ; CHECK-NEXT: call void @check1(i1 [[CMP4]]) ; CHECK-NEXT: [[CMP5:%.*]] = icmp ugt i32 [[A]], 11 ; CHECK-NEXT: call void @check1(i1 [[CMP5]]) ; CHECK-NEXT: ret void ; CHECK: if.false: ; CHECK-NEXT: ret void ; %and = and i32 %a, -2 %cmp = icmp ne i32 %and, 10 br i1 %cmp, label %if.true, label %if.false if.true: %cmp2 = icmp uge i32 %a, 10 call void @check1(i1 %cmp2) %cmp3 = icmp ule i32 %a, 11 call void @check1(i1 %cmp3) %cmp4 = icmp ult i32 %a, 10 call void @check1(i1 %cmp4) %cmp5 = icmp ugt i32 %a, 11 call void @check1(i1 %cmp5) ret void if.false: ret void } attributes #4 = { noreturn }