45 lines
1.7 KiB
LLVM
45 lines
1.7 KiB
LLVM
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; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -lower-widenable-condition < %s | FileCheck %s
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; RUN: opt -S -passes=lower-widenable-condition < %s | FileCheck %s
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; Basic test case: make sure that all widenable conditions turn into i1 true.
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define void @f_0(i1 %cond_0, i1 %cond_1) {
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; CHECK-LABEL: @f_0(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND:%.*]] = and i1 [[COND_0:%.*]], true
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND]], label [[GUARDED:%.*]], label [[DEOPT:%.*]]
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; CHECK: deopt:
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; CHECK-NEXT: unreachable
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; CHECK: guarded:
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; CHECK-NEXT: [[EXIPLICIT_GUARD_COND4:%.*]] = and i1 [[COND_1:%.*]], true
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; CHECK-NEXT: br i1 [[EXIPLICIT_GUARD_COND4]], label [[GUARDED1:%.*]], label [[DEOPT2:%.*]]
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; CHECK: deopt2:
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; CHECK-NEXT: unreachable
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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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%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
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deopt: ; preds = %entry
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unreachable
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guarded: ; preds = %entry
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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
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deopt2: ; preds = %guarded
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unreachable
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guarded1: ; preds = %guarded
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ret void
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}
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; Function Attrs: inaccessiblememonly nounwind
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declare i1 @llvm.experimental.widenable.condition() #0
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attributes #0 = { inaccessiblememonly nounwind }
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