b66fae37ed
Similar case to #151649. Reviewers: fmayer, nikic Pull Request: https://github.com/llvm/llvm-project/pull/182976
42 lines
1.4 KiB
LLVM
42 lines
1.4 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=gvn -S < %s | FileCheck %s
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; Check that PRE is inhibited for llvm.protected.field.ptr.
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declare void @use(ptr)
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define void @test1(i1 %c, ptr %arg) {
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; CHECK-LABEL: @test1(
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; CHECK-NEXT: br i1 [[C:%.*]], label [[BB1:%.*]], label [[DOTBB2_CRIT_EDGE:%.*]]
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; CHECK: bb1:
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; CHECK-NEXT: [[CALL:%.*]] = call ptr @llvm.protected.field.ptr.p0(ptr [[ARG:%.*]], i64 1, i1 true)
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; CHECK-NEXT: br label [[BB3:%.*]]
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; CHECK: bb2:
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; CHECK-NEXT: [[CALL2:%.*]] = call ptr @llvm.protected.field.ptr.p0(ptr [[ARG]], i64 1, i1 true)
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; CHECK-NEXT: [[V:%.*]] = load ptr, ptr [[CALL2]], align 8
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; CHECK-NEXT: call void @use(ptr [[V]])
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; CHECK-NEXT: br label [[BB3]]
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; CHECK: bb3:
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; CHECK-NEXT: [[CALL3:%.*]] = call ptr @llvm.protected.field.ptr.p0(ptr [[ARG]], i64 1, i1 true)
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; CHECK-NEXT: [[V2:%.*]] = load ptr, ptr [[CALL3]], align 8
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; CHECK-NEXT: call void @use(ptr [[V2]])
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; CHECK-NEXT: br label [[DOTBB2_CRIT_EDGE]]
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;
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br i1 %c, label %bb1, label %bb2
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bb1:
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%call = call ptr @llvm.protected.field.ptr.p0(ptr %arg, i64 1, i1 true)
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br label %bb3
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bb2:
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%call2 = call ptr @llvm.protected.field.ptr.p0(ptr %arg, i64 1, i1 true)
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%v = load ptr, ptr %call2
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call void @use(ptr %v)
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br label %bb3
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bb3:
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%call3 = call ptr @llvm.protected.field.ptr.p0(ptr %arg, i64 1, i1 true)
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%v2 = load ptr, ptr %call3
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call void @use(ptr %v2)
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br label %bb2
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}
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