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Don't avoid recursing for pointer types, just reference types. Expand on

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the comment.

Fixes constvars.exp on the gdb test builder.

llvm-svn: 147897
This commit is contained in:
Eric Christopher 2012-01-11 00:01:29 +00:00
parent 830f1909d8
commit cc62a64250
2 changed files with 29 additions and 3 deletions
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7
lib/Analysis/DebugInfo.cpp
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@ -492,9 +492,10 @@ uint64_t DIDerivedType::getOriginalTypeSize() const {
if (!BaseType.isValid())
return getSizeInBits();
// If this is a derived type, go ahead and get the base type, unless
// it's a reference or pointer type, then it's just the size of the field.
if (BaseType.getTag() == dwarf::DW_TAG_reference_type ||
BaseType.getTag() == dwarf::DW_TAG_pointer_type)
// it's a reference then it's just the size of the field. Pointer types
// have no need of this since they're a different type of qualification
// on the type.
if (BaseType.getTag() == dwarf::DW_TAG_reference_type)
return getSizeInBits();
else if (BaseType.isDerivedType())
return DIDerivedType(BaseType).getOriginalTypeSize();

25
test/DebugInfo/X86/pointer-type-size.ll Normal file
View File

@ -0,0 +1,25 @@
; RUN: llc -mtriple=x86_64-apple-macosx10.7 %s -o %t -filetype=obj
; RUN: llvm-dwarfdump %t | FileCheck %s
; CHECK: ptr
; CHECK-NOT: AT_bit_size
%struct.crass = type { i8* }
@crass = common global %struct.crass zeroinitializer, align 8
!llvm.dbg.cu = !{!0}
!0 = metadata !{i32 720913, i32 0, i32 12, metadata !"foo.c", metadata !"/Users/echristo/tmp", metadata !"clang version 3.1 (trunk 147882)", i1 true, i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3} ; [ DW_TAG_compile_unit ]
!1 = metadata !{metadata !2}
!2 = metadata !{i32 0}
!3 = metadata !{metadata !4}
!4 = metadata !{metadata !5}
!5 = metadata !{i32 720948, i32 0, null, metadata !"crass", metadata !"crass", metadata !"", metadata !6, i32 1, metadata !7, i32 0, i32 1, %struct.crass* @crass} ; [ DW_TAG_variable ]
!6 = metadata !{i32 720937, metadata !"foo.c", metadata !"/Users/echristo/tmp", null} ; [ DW_TAG_file_type ]
!7 = metadata !{i32 720915, null, metadata !"crass", metadata !6, i32 1, i64 64, i64 64, i32 0, i32 0, null, metadata !8, i32 0, i32 0} ; [ DW_TAG_structure_type ]
!8 = metadata !{metadata !9}
!9 = metadata !{i32 720909, metadata !7, metadata !"ptr", metadata !6, i32 1, i64 64, i64 64, i64 0, i32 0, metadata !10} ; [ DW_TAG_member ]
!10 = metadata !{i32 720934, null, metadata !"", null, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !11} ; [ DW_TAG_const_type ]
!11 = metadata !{i32 720911, null, metadata !"", null, i32 0, i64 64, i64 64, i64 0, i32 0, metadata !12} ; [ DW_TAG_pointer_type ]
!12 = metadata !{i32 720932, null, metadata !"char", null, i32 0, i64 8, i64 8, i64 0, i32 0, i32 6} ; [ DW_TAG_base_type ]