74 lines
3.1 KiB
LLVM
74 lines
3.1 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -guard-widening-widen-branch-guards=true -guard-widening < %s | FileCheck %s
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; RUN: opt -S -guard-widening-widen-branch-guards=true -passes=guard-widening < %s | FileCheck %s
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; Interaction between intrinsic and widenable condition guards.
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declare void @llvm.experimental.guard(i1,...)
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declare void @llvm.experimental.deoptimize.isVoid(...)
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; Function Attrs: inaccessiblememonly nounwind
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declare i1 @llvm.experimental.widenable.condition() #0
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; Widen condition of intrinsic guard with a condition from widenable branch.
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define void @test_01(i1 %cond_0, i1 %cond_1) {
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; CHECK-LABEL: @test_01(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDE_CHK:%.*]] = and i1 [[COND_0:%.*]], [[COND_1:%.*]]
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; CHECK-NEXT: call void (i1, ...) @llvm.experimental.guard(i1 [[WIDE_CHK]]) [ "deopt"() ]
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; CHECK-NEXT: [[WIDENABLE_COND3:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND4:%.*]] = and i1 [[COND_1]], [[WIDENABLE_COND3]]
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; CHECK-NEXT: br i1 true, label [[GUARDED1:%.*]], label [[DEOPT2:%.*]], !prof !0
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; CHECK: deopt2:
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; CHECK-NEXT: call void (...) @llvm.experimental.deoptimize.isVoid() [ "deopt"() ]
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; CHECK-NEXT: ret void
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; CHECK: guarded1:
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; CHECK-NEXT: ret void
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;
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entry:
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call void (i1, ...) @llvm.experimental.guard(i1 %cond_0) [ "deopt"() ]
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%widenable_cond3 = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond4 = and i1 %cond_1, %widenable_cond3
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br i1 %exiplicit_guard_cond4, label %guarded1, label %deopt2, !prof !0
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deopt2: ; preds = %guarded
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call void (...) @llvm.experimental.deoptimize.isVoid() [ "deopt"() ]
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ret void
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guarded1: ; preds = %guarded
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ret void
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}
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; Widen condition of widenable condition guard with a condition from intrinsic.
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define void @test_02(i1 %cond_0, i1 %cond_1) {
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; CHECK-LABEL: @test_02(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[WIDENABLE_COND:%.*]] = call i1 @llvm.experimental.widenable.condition()
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; CHECK-NEXT: [[WIDE_CHK:%.*]] = and i1 [[COND_0:%.*]], [[COND_1:%.*]]
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; CHECK-NEXT: [[GUARD_CHK:%.*]] = and i1 [[WIDE_CHK]], [[WIDENABLE_COND]]
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; CHECK-NEXT: br i1 [[GUARD_CHK]], label [[GUARDED:%.*]], label [[DEOPT:%.*]], !prof !0
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; CHECK: deopt:
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; CHECK-NEXT: call void (...) @llvm.experimental.deoptimize.isVoid() [ "deopt"() ]
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; CHECK-NEXT: ret void
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; CHECK: guarded:
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; CHECK-NEXT: ret void
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;
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entry:
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%widenable_cond = call i1 @llvm.experimental.widenable.condition()
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%exiplicit_guard_cond = and i1 %cond_0, %widenable_cond
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br i1 %exiplicit_guard_cond, label %guarded, label %deopt, !prof !0
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deopt: ; preds = %entry
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call void (...) @llvm.experimental.deoptimize.isVoid() [ "deopt"() ]
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ret void
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guarded: ; preds = %entry
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call void (i1, ...) @llvm.experimental.guard(i1 %cond_1) [ "deopt"() ]
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ret void
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}
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attributes #0 = { inaccessiblememonly nounwind }
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!0 = !{!"branch_weights", i32 1048576, i32 1}
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