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| author | Devang Patel <dpatel@apple.com> | 2009-11-06 18:24:05 +0000 |
|---|---|---|
| committer | Devang Patel <dpatel@apple.com> | 2009-11-06 18:24:05 +0000 |
| commit | 5ebfa2d181dccee5e23421a41910a7a1851d358e (patch) | |
| tree | a02f7ec0c860ca99a9a0f89e431238d9ea098c3e | |
| parent | f7807f6b9e9a215f365ce98a4c252aced4f651fb (diff) | |
| download | external_llvm-5ebfa2d181dccee5e23421a41910a7a1851d358e.zip external_llvm-5ebfa2d181dccee5e23421a41910a7a1851d358e.tar.gz external_llvm-5ebfa2d181dccee5e23421a41910a7a1851d358e.tar.bz2 | |
Tolerate invalid derived type.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@86269 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Analysis/DebugInfo.cpp | 4 | ||||
| -rw-r--r-- | test/DebugInfo/2009-11-06-InvalideDerivedType.ll | 13 |
2 files changed, 17 insertions, 0 deletions
diff --git a/lib/Analysis/DebugInfo.cpp b/lib/Analysis/DebugInfo.cpp index 7c1cc35..24b5ad4 100644 --- a/lib/Analysis/DebugInfo.cpp +++ b/lib/Analysis/DebugInfo.cpp @@ -409,6 +409,10 @@ uint64_t DIDerivedType::getOriginalTypeSize() const { Tag == dwarf::DW_TAG_const_type || Tag == dwarf::DW_TAG_volatile_type || Tag == dwarf::DW_TAG_restrict_type) { DIType BaseType = getTypeDerivedFrom(); + // If this type is not derived from any type then take conservative + // approach. + if (BaseType.isNull()) + return getSizeInBits(); if (BaseType.isDerivedType()) return DIDerivedType(BaseType.getNode()).getOriginalTypeSize(); else diff --git a/test/DebugInfo/2009-11-06-InvalideDerivedType.ll b/test/DebugInfo/2009-11-06-InvalideDerivedType.ll new file mode 100644 index 0000000..73211bb --- /dev/null +++ b/test/DebugInfo/2009-11-06-InvalideDerivedType.ll @@ -0,0 +1,13 @@ +; RUN: llc %s -o /dev/null +%struct._t = type { i32 } + +@s1 = common global %struct._t zeroinitializer, align 4 ; <%struct._t*> [#uses=0] + +!llvm.dbg.gv = !{!0} + +!0 = metadata !{i32 458804, i32 0, metadata !1, metadata !"s1", metadata !"s1", metadata !"s1", metadata !1, i32 3, metadata !2, i1 false, i1 true, %struct._t* @s1}; [DW_TAG_variable ] +!1 = metadata !{i32 458769, i32 0, i32 12, metadata !"t.c", metadata !"/tmp", metadata !"clang 1.1", i1 true, i1 false, metadata !"", i32 0}; [DW_TAG_compile_unit ] +!2 = metadata !{i32 458771, metadata !1, metadata !"_t", metadata !1, i32 1, i64 32, i64 32, i64 0, i32 0, null, metadata !3, i32 0}; [DW_TAG_structure_type ] +!3 = metadata !{metadata !4} +!4 = metadata !{i32 458765, metadata !1, metadata !"j", metadata !1, i32 2, i64 32, i64 32, i64 0, i32 0, metadata !5}; [DW_TAG_member ] +!5 = metadata !{i32 458790, metadata !1, metadata !"", null, i32 0, i64 0, i64 0, i64 0, i32 0, null}; [DW_TAG_const_type ] |