29 lines
868 B
LLVM
29 lines
868 B
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -S -passes=gvn -o - %s | FileCheck %s
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define i32 @foo(i1 %cond) {
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; CHECK-LABEL: @foo(
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; CHECK-NEXT: entry:
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; CHECK-NEXT: [[V0:%.*]] = call i32 @llvm.convergent()
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; CHECK-NEXT: br i1 [[COND:%.*]], label [[BODY:%.*]], label [[END:%.*]]
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; CHECK: body:
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; CHECK-NEXT: [[V1:%.*]] = call i32 @llvm.convergent()
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; CHECK-NEXT: br label [[END]]
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; CHECK: end:
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; CHECK-NEXT: [[RET:%.*]] = phi i32 [ [[V0]], [[ENTRY:%.*]] ], [ [[V1]], [[BODY]] ]
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; CHECK-NEXT: ret i32 [[RET]]
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;
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entry:
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%v0 = call i32 @llvm.convergent()
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br i1 %cond, label %body, label %end
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body:
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%v1 = call i32 @llvm.convergent()
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br label %end
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end:
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%ret = phi i32 [ %v0, %entry ], [ %v1, %body ]
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ret i32 %ret
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}
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declare i32 @llvm.convergent() convergent nounwind readnone willreturn
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