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Add unit test for CloneModule and #dbg_label #91463

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Add unit test for CloneModule and #dbg_label #91463

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38 changes: 38 additions & 0 deletions llvm/unittests/Transforms/Utils/CloningTest.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -1122,4 +1122,42 @@ TEST_F(CloneModule, IFunc) {
EXPECT_EQ("resolver", Resolver->getName());
EXPECT_EQ(GlobalValue::PrivateLinkage, Resolver->getLinkage());
}

TEST_F(CloneModule, CloneDbgLabel) {
LLVMContext Context;

std::unique_ptr<Module> M = parseIR(
Context,
R"M(
define void @noop(ptr nocapture noundef writeonly align 4 %dst) local_unnamed_addr !dbg !3 {
entry:
%call = tail call spir_func i64 @foo(i32 noundef 0)
#dbg_label(!11, !12)
store i64 %call, ptr %dst, align 4
ret void
}

declare i64 @foo(i32 noundef) local_unnamed_addr

!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!2}

!0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "clang version 19.0.0git", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug)
!1 = !DIFile(filename: "<stdin>", directory: "foo")
!2 = !{i32 2, !"Debug Info Version", i32 3}
!3 = distinct !DISubprogram(name: "noop", scope: !4, file: !4, line: 17, type: !5, scopeLine: 17, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !9)
!4 = !DIFile(filename: "file", directory: "foo")
!5 = !DISubroutineType(types: !6)
!6 = !{null, !7}
!7 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !8, size: 64)
!8 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed)
!9 = !{}
!11 = !DILabel(scope: !3, name: "foo", file: !4, line: 23)
!12 = !DILocation(line: 23, scope: !3)
)M");

ASSERT_FALSE(verifyModule(*M, &errs()));
auto NewM = llvm::CloneModule(*M);
EXPECT_FALSE(verifyModule(*NewM, &errs()));
}
}