2f5fdbfab8
We should not call mdconst::extract, unless we know that the metadata in question is ConstantAsMetadata. For now we consider all other metadata as equal. The noalias test shows that this is not correct, but at least it doesn't crash anymore.
82 lines
2.2 KiB
LLVM
82 lines
2.2 KiB
LLVM
; NOTE: Assertions have been autogenerated by utils/update_test_checks.py
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; RUN: opt -passes=mergefunc -S < %s | FileCheck %s
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; This test makes sure that the mergefunc pass does not merge functions
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; that have different nonnull assertions.
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%1 = type ptr
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define void @f1(ptr %0, ptr %1) {
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; CHECK-LABEL: @f1(
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; CHECK-NEXT: [[TMP3:%.*]] = load ptr, ptr [[TMP1:%.*]], align 8, !nonnull !0
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; CHECK-NEXT: store ptr [[TMP3]], ptr [[TMP0:%.*]], align 8
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; CHECK-NEXT: ret void
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;
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%3 = load ptr, ptr %1, align 8, !nonnull !0
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store ptr %3, ptr %0, align 8
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ret void
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}
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define void @f2(ptr %0, ptr %1) {
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; CHECK-LABEL: @f2(
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; CHECK-NEXT: [[TMP3:%.*]] = load ptr, ptr [[TMP1:%.*]], align 8
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; CHECK-NEXT: store ptr [[TMP3]], ptr [[TMP0:%.*]], align 8
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; CHECK-NEXT: ret void
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;
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%3 = load ptr, ptr %1, align 8
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store ptr %3, ptr %0, align 8
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ret void
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}
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define void @noundef(ptr %0, ptr %1) {
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; CHECK-LABEL: @noundef(
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; CHECK-NEXT: [[TMP3:%.*]] = load ptr, ptr [[TMP1:%.*]], align 8, !noundef !0
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; CHECK-NEXT: store ptr [[TMP3]], ptr [[TMP0:%.*]], align 8
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; CHECK-NEXT: ret void
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;
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%3 = load ptr, ptr %1, align 8, !noundef !0
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store ptr %3, ptr %0, align 8
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ret void
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}
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define void @noalias_1(ptr %0, ptr %1) {
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; CHECK-LABEL: @noalias_1(
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; CHECK-NEXT: [[TMP3:%.*]] = load ptr, ptr [[TMP1:%.*]], align 8, !noalias !1
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; CHECK-NEXT: store ptr [[TMP3]], ptr [[TMP0:%.*]], align 8, !alias.scope !1
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; CHECK-NEXT: ret void
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;
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%3 = load ptr, ptr %1, align 8, !noalias !4
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store ptr %3, ptr %0, align 8, !alias.scope !4
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ret void
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}
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define void @noundef_dbg(ptr %0, ptr %1) {
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; CHECK-LABEL: @noundef_dbg(
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; CHECK-NEXT: tail call void @noundef(ptr [[TMP0:%.*]], ptr [[TMP1:%.*]])
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; CHECK-NEXT: ret void
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;
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%3 = load ptr, ptr %1, align 8, !noundef !0, !dbg !1
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store ptr %3, ptr %0, align 8
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ret void
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}
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; FIXME: This is merged despite different noalias metadata.
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define void @noalias_2(ptr %0, ptr %1) {
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; CHECK-LABEL: @noalias_2(
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; CHECK-NEXT: tail call void @noalias_1(ptr [[TMP0:%.*]], ptr [[TMP1:%.*]])
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; CHECK-NEXT: ret void
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;
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%3 = load ptr, ptr %1, align 8, !noalias !7
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store ptr %3, ptr %0, align 8, !alias.scope !7
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ret void
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}
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!0 = !{}
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!1 = !{}
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!2 = !{!2}
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!3 = !{!3, !2}
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!4 = !{!3}
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!5 = !{!5}
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!6 = !{!6, !5}
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!7 = !{!6}
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