diff options
Diffstat (limited to 'test/Verifier/dbg-typerefs.ll')
| -rw-r--r-- | test/Verifier/dbg-typerefs.ll | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/test/Verifier/dbg-typerefs.ll b/test/Verifier/dbg-typerefs.ll new file mode 100644 index 0000000..55ee03e --- /dev/null +++ b/test/Verifier/dbg-typerefs.ll @@ -0,0 +1,32 @@ +; RUN: not llvm-as -disable-output <%s 2>&1 | FileCheck %s +; Check that the debug info verifier gives nice errors for bad type refs +; (rather than crashing). +!llvm.module.flags = !{!0} +!0 = !{i32 2, !"Debug Info Version", i32 3} + +; Make a bunch of type references. Note that !4 references !"0.bad" (instead +; of !"4.bad") to test error ordering. +!typerefs = !{!1, !2, !3, !4} +!1 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !"1.good") +!2 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !"2.bad") +!3 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !"3.good") +!4 = !MDDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, baseType: !"0.bad") + +; Add a minimal compile unit to resolve some of the type references. +!llvm.dbg.cu = !{!5} +!5 = !MDCompileUnit(file: !6, language: DW_LANG_C99, retainedTypes: !7) +!6 = !MDFile(filename: "file.c", directory: "/path/to/dir") +!7 = !{!8, !9} +!8 = !MDCompositeType(tag: DW_TAG_structure_type, identifier: "1.good") +!9 = !MDCompositeType(tag: DW_TAG_structure_type, identifier: "3.good") + +; CHECK: assembly parsed, but does not verify +; CHECK-NEXT: unresolved type ref +; CHECK-NEXT: !"0.bad" +; CHECK-NEXT: !MDDerivedType(tag: DW_TAG_pointer_type +; CHECK-SAME: baseType: !"0.bad" +; CHECK-NEXT: unresolved type ref +; CHECK-NEXT: !"2.bad" +; CHECK-NEXT: !MDDerivedType(tag: DW_TAG_pointer_type +; CHECK-SAME: baseType: !"2.bad" +; CHECK-NOT: unresolved |