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Remove the llvm-local DW_TAG_vector_type tag and add a test to

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make sure that vector types do work.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@171833 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2013-01-08 01:53:52 +00:00
parent 1f55eb4c57
commit 9a1e0e252a
8 changed files with 38 additions and 14 deletions
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5
docs/SourceLevelDebugging.rst
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@ -484,14 +484,13 @@ are possible tag values:
DW_TAG_enumeration_type = 4
DW_TAG_structure_type = 19
DW_TAG_union_type = 23
DW_TAG_vector_type = 259
DW_TAG_subroutine_type = 21
DW_TAG_inheritance = 28
The vector flag indicates that an array type is a native packed vector.
The members of array types (tag = ``DW_TAG_array_type``) or vector types (tag =
``DW_TAG_vector_type``) are :ref:`subrange descriptors <format_subrange>`, each
The members of array types (tag = ``DW_TAG_array_type``) are
:ref:`subrange descriptors <format_subrange>`, each
representing the range of subscripts at that level of indexing.
The members of enumeration types (tag = ``DW_TAG_enumeration_type``) are

6
include/llvm/DebugInfo.h
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@ -61,7 +61,8 @@ namespace llvm {
FlagExplicit = 1 << 7,
FlagPrototyped = 1 << 8,
FlagObjcClassComplete = 1 << 9,
FlagObjectPointer = 1 << 10
FlagObjectPointer = 1 << 10,
FlagVector = 1 << 11
};
protected:
const MDNode *DbgNode;
@ -296,6 +297,9 @@ namespace llvm {
bool isObjcClassComplete() const {
return (getFlags() & FlagObjcClassComplete) != 0;
}
bool isVector() const {
return (getFlags() & FlagVector) != 0;
}
bool isValid() const {
return DbgNode && (isBasicType() || isDerivedType() || isCompositeType());
}

2
include/llvm/Support/Dwarf.h
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@ -50,8 +50,6 @@ enum llvm_dwarf_constants {
DW_TAG_auto_variable = 0x100, // Tag for local (auto) variables.
DW_TAG_arg_variable = 0x101, // Tag for argument variables.
// 0x102 - Unused.
DW_TAG_vector_type = 0x103, // Tag for vector types.
DW_TAG_user_base = 0x1000, // Recommended base for user tags.

3
lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
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@ -825,7 +825,6 @@ void CompileUnit::constructTypeDIE(DIE &Buffer, DICompositeType CTy) {
Buffer.setTag(Tag);
switch (Tag) {
case dwarf::DW_TAG_vector_type:
case dwarf::DW_TAG_array_type:
constructArrayTypeDIE(Buffer, &CTy);
break;
@ -1347,7 +1346,7 @@ void CompileUnit::constructSubrangeDIE(DIE &Buffer, DISubrange SR,
void CompileUnit::constructArrayTypeDIE(DIE &Buffer,
DICompositeType *CTy) {
Buffer.setTag(dwarf::DW_TAG_array_type);
if (CTy->getTag() == dwarf::DW_TAG_vector_type)
if (CTy->isVector())
addFlag(&Buffer, dwarf::DW_AT_GNU_vector);
// Emit derived type.

7
lib/IR/DIBuilder.cpp
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@ -616,9 +616,10 @@ DIType DIBuilder::createArrayType(uint64_t Size, uint64_t AlignInBits,
/// createVectorType - Create debugging information entry for a vector.
DIType DIBuilder::createVectorType(uint64_t Size, uint64_t AlignInBits,
DIType Ty, DIArray Subscripts) {
// TAG_vector_type is encoded in DICompositeType format.
// A vector is an array type with the FlagVector flag applied.
Value *Elts[] = {
GetTagConstant(VMContext, dwarf::DW_TAG_vector_type),
GetTagConstant(VMContext, dwarf::DW_TAG_array_type),
NULL, //TheCU,
MDString::get(VMContext, ""),
NULL, //TheCU,
@ -626,7 +627,7 @@ DIType DIBuilder::createVectorType(uint64_t Size, uint64_t AlignInBits,
ConstantInt::get(Type::getInt64Ty(VMContext), Size),
ConstantInt::get(Type::getInt64Ty(VMContext), AlignInBits),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), 0),
ConstantInt::get(Type::getInt32Ty(VMContext), DIType::FlagVector),
Ty,
Subscripts,
ConstantInt::get(Type::getInt32Ty(VMContext), 0),

5
lib/IR/DebugInfo.cpp
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@ -197,7 +197,6 @@ bool DIDescriptor::isCompositeType() const {
case dwarf::DW_TAG_structure_type:
case dwarf::DW_TAG_union_type:
case dwarf::DW_TAG_enumeration_type:
case dwarf::DW_TAG_vector_type:
case dwarf::DW_TAG_subroutine_type:
case dwarf::DW_TAG_class_type:
return true;
@ -426,7 +425,7 @@ bool DIType::Verify() const {
Tag != dwarf::DW_TAG_ptr_to_member_type &&
Tag != dwarf::DW_TAG_reference_type &&
Tag != dwarf::DW_TAG_rvalue_reference_type &&
Tag != dwarf::DW_TAG_restrict_type && Tag != dwarf::DW_TAG_vector_type &&
Tag != dwarf::DW_TAG_restrict_type &&
Tag != dwarf::DW_TAG_array_type &&
Tag != dwarf::DW_TAG_enumeration_type &&
Tag != dwarf::DW_TAG_subroutine_type &&
@ -1100,6 +1099,8 @@ void DIType::printInternal(raw_ostream &OS) const {
if (isForwardDecl())
OS << " [fwd]";
if (isVector())
OS << " [vector]";
}
void DIDerivedType::printInternal(raw_ostream &OS) const {

1
lib/Support/Dwarf.cpp
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@ -80,7 +80,6 @@ const char *llvm::dwarf::TagString(unsigned Tag) {
case DW_TAG_hi_user: return "DW_TAG_hi_user";
case DW_TAG_auto_variable: return "DW_TAG_auto_variable";
case DW_TAG_arg_variable: return "DW_TAG_arg_variable";
case DW_TAG_vector_type: return "DW_TAG_vector_type";
case DW_TAG_rvalue_reference_type: return "DW_TAG_rvalue_reference_type";
case DW_TAG_template_alias: return "DW_TAG_template_alias";
case DW_TAG_MIPS_loop: return "DW_TAG_MIPS_loop";

23
test/DebugInfo/X86/vector.ll Normal file
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@ -0,0 +1,23 @@
; RUN: llc -mtriple=x86_64-linux-gnu -O0 -filetype=obj -o %t %s
; RUN: llvm-dwarfdump %t | FileCheck %s
@a = common global <4 x i32> zeroinitializer, align 16
!llvm.dbg.cu = !{!0}
!0 = metadata !{i32 786449, i32 0, i32 12, metadata !"foo.c", metadata !"/Users/echristo", metadata !"clang version 3.3 (trunk 171825) (llvm/trunk 171822)", i1 true, i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !1, metadata !3} ; [ DW_TAG_compile_unit ] [/Users/echristo/foo.c] [DW_LANG_C99]
!1 = metadata !{metadata !2}
!2 = metadata !{i32 0}
!3 = metadata !{metadata !4}
!4 = metadata !{metadata !5}
!5 = metadata !{i32 786484, i32 0, null, metadata !"a", metadata !"a", metadata !"", metadata !6, i32 3, metadata !7, i32 0, i32 1, <4 x i32>* @a} ; [ DW_TAG_variable ] [a] [line 3] [def]
!6 = metadata !{i32 786473, metadata !"foo.c", metadata !"/Users/echristo", null} ; [ DW_TAG_file_type ]
!7 = metadata !{i32 786454, null, metadata !"v4si", metadata !6, i32 1, i64 0, i64 0, i64 0, i32 0, metadata !8} ; [ DW_TAG_typedef ] [v4si] [line 1, size 0, align 0, offset 0] [from ]
!8 = metadata !{i32 786433, null, metadata !"", null, i32 0, i64 128, i64 128, i32 0, i32 2048, metadata !9, metadata !10, i32 0, i32 0} ; [ DW_TAG_array_type ] [line 0, size 128, align 128, offset 0] [vector] [from int]
!9 = metadata !{i32 786468, null, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!10 = metadata !{metadata !11}
!11 = metadata !{i32 786465, i64 0, i64 4} ; [ DW_TAG_subrange_type ] [0, 3]
; Check that we get an array type with a vector attribute.
; CHECK: DW_TAG_array_type
; CHECK-NEXT: DW_AT_GNU_vector