[llvm-commits] [llvm] r143097 - in /llvm/trunk: include/llvm/CodeGen/ include/llvm/MC/ lib/CodeGen/AsmPrinter/ lib/MC/ test/CodeGen/ARM/ test/CodeGen/X86/ test/DebugInfo/
Nick Lewycky
nicholas at mxc.ca
Wed Oct 26 23:44:11 PDT 2011
Author: nicholas
Date: Thu Oct 27 01:44:11 2011
New Revision: 143097
URL: http://llvm.org/viewvc/llvm-project?rev=143097&view=rev
Log:
Teach our Dwarf emission to use the string pool.
Added:
llvm/trunk/test/DebugInfo/stringpool.ll
Modified:
llvm/trunk/include/llvm/CodeGen/AsmPrinter.h
llvm/trunk/include/llvm/MC/MCAsmInfo.h
llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
llvm/trunk/lib/CodeGen/AsmPrinter/DIE.cpp
llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h
llvm/trunk/lib/MC/MCAsmInfo.cpp
llvm/trunk/lib/MC/MCAsmInfoDarwin.cpp
llvm/trunk/test/CodeGen/ARM/debug-info-sreg2.ll
llvm/trunk/test/CodeGen/X86/2010-06-28-DbgEntryPC.ll
llvm/trunk/test/DebugInfo/2011-09-26-GlobalVarContext.ll
Modified: llvm/trunk/include/llvm/CodeGen/AsmPrinter.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/CodeGen/AsmPrinter.h?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/include/llvm/CodeGen/AsmPrinter.h (original)
+++ llvm/trunk/include/llvm/CodeGen/AsmPrinter.h Thu Oct 27 01:44:11 2011
@@ -194,6 +194,11 @@
bool needsSEHMoves();
+ /// needsRelocationsForDwarfStringPool - Specifies whether the object format
+ /// expects to use relocations to refer to debug entries. Alternatively we
+ /// emit section offsets in bytes from the start of the string pool.
+ bool needsRelocationsForDwarfStringPool() const;
+
/// EmitConstantPool - Print to the current output stream assembly
/// representations of the constants in the constant pool MCP. This is
/// used to print out constants which have been "spilled to memory" by
Modified: llvm/trunk/include/llvm/MC/MCAsmInfo.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/include/llvm/MC/MCAsmInfo.h?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/include/llvm/MC/MCAsmInfo.h (original)
+++ llvm/trunk/include/llvm/MC/MCAsmInfo.h Thu Oct 27 01:44:11 2011
@@ -330,6 +330,10 @@
/// use EmitLabelOffsetDifference.
bool DwarfUsesLabelOffsetForRanges;
+ /// DwarfUsesRelocationsForStringPool - True if this Dwarf output must use
+ /// relocations to refer to entries in the string pool.
+ bool DwarfUsesRelocationsForStringPool;
+
/// DwarfRegNumForCFI - True if dwarf register numbers are printed
/// instead of symbolic register names in .cfi_* directives.
bool DwarfRegNumForCFI; // Defaults to false;
@@ -566,6 +570,9 @@
bool doesDwarfUsesLabelOffsetForRanges() const {
return DwarfUsesLabelOffsetForRanges;
}
+ bool doesDwarfUseRelocationsForStringPool() const {
+ return DwarfUsesRelocationsForStringPool;
+ }
bool useDwarfRegNumForCFI() const {
return DwarfRegNumForCFI;
}
Modified: llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/AsmPrinter.cpp Thu Oct 27 01:44:11 2011
@@ -613,6 +613,10 @@
MF->getFunction()->needsUnwindTableEntry();
}
+bool AsmPrinter::needsRelocationsForDwarfStringPool() const {
+ return MAI->doesDwarfUseRelocationsForStringPool();
+}
+
void AsmPrinter::emitPrologLabel(const MachineInstr &MI) {
MCSymbol *Label = MI.getOperand(0).getMCSymbol();
@@ -2092,4 +2096,3 @@
report_fatal_error("no GCMetadataPrinter registered for GC: " + Twine(Name));
return 0;
}
-
Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DIE.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DIE.cpp?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DIE.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DIE.cpp Thu Oct 27 01:44:11 2011
@@ -267,6 +267,7 @@
///
unsigned DIELabel::SizeOf(AsmPrinter *AP, unsigned Form) const {
if (Form == dwarf::DW_FORM_data4) return 4;
+ if (Form == dwarf::DW_FORM_strp) return 4;
return AP->getTargetData().getPointerSize();
}
@@ -290,6 +291,7 @@
///
unsigned DIEDelta::SizeOf(AsmPrinter *AP, unsigned Form) const {
if (Form == dwarf::DW_FORM_data4) return 4;
+ if (Form == dwarf::DW_FORM_strp) return 4;
return AP->getTargetData().getPointerSize();
}
Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.cpp Thu Oct 27 01:44:11 2011
@@ -69,10 +69,21 @@
/// addString - Add a string attribute data and value. DIEString only
/// keeps string reference.
-void CompileUnit::addString(DIE *Die, unsigned Attribute, unsigned Form,
- StringRef String) {
- DIEValue *Value = new (DIEValueAllocator) DIEString(String);
- Die->addValue(Attribute, Form, Value);
+void CompileUnit::addString(DIE *Die, unsigned Attribute, StringRef String) {
+ if (String.size() > 3) {
+ MCSymbol *Symb = DD->getStringPoolEntry(String);
+ DIEValue *Value;
+ if (Asm->needsRelocationsForDwarfStringPool())
+ Value = new (DIEValueAllocator) DIELabel(Symb);
+ else {
+ MCSymbol *StringPool = DD->getStringPool();
+ Value = new (DIEValueAllocator) DIEDelta(Symb, StringPool);
+ }
+ Die->addValue(Attribute, dwarf::DW_FORM_strp, Value);
+ } else {
+ DIEValue *Value = new (DIEValueAllocator) DIEString(String);
+ Die->addValue(Attribute, dwarf::DW_FORM_string, Value);
+ }
}
/// addLabel - Add a Dwarf label attribute data and value.
@@ -479,7 +490,7 @@
/// addConstantFPValue - Add constant value entry in variable DIE.
bool CompileUnit::addConstantFPValue(DIE *Die, const MachineOperand &MO) {
- assert(MO.isFPImm() && "Invalid machine operand!");
+ assert (MO.isFPImm() && "Invalid machine operand!");
DIEBlock *Block = new (DIEValueAllocator) DIEBlock();
APFloat FPImm = MO.getFPImm()->getValueAPF();
@@ -660,7 +671,7 @@
StringRef Name = BTy.getName();
// Add name if not anonymous or intermediate type.
if (!Name.empty())
- addString(&Buffer, dwarf::DW_AT_name, dwarf::DW_FORM_string, Name);
+ addString(&Buffer, dwarf::DW_AT_name, Name);
if (BTy.getTag() == dwarf::DW_TAG_unspecified_type) {
Buffer.setTag(dwarf::DW_TAG_unspecified_type);
@@ -694,7 +705,7 @@
// Add name if not anonymous or intermediate type.
if (!Name.empty())
- addString(&Buffer, dwarf::DW_AT_name, dwarf::DW_FORM_string, Name);
+ addString(&Buffer, dwarf::DW_AT_name, Name);
// Add size if non-zero (derived types might be zero-sized.)
if (Size)
@@ -791,8 +802,7 @@
else if (Element.isVariable()) {
DIVariable DV(Element);
ElemDie = new DIE(dwarf::DW_TAG_variable);
- addString(ElemDie, dwarf::DW_AT_name, dwarf::DW_FORM_string,
- DV.getName());
+ addString(ElemDie, dwarf::DW_AT_name, DV.getName());
addType(ElemDie, DV.getType());
addUInt(ElemDie, dwarf::DW_AT_declaration, dwarf::DW_FORM_flag, 1);
addUInt(ElemDie, dwarf::DW_AT_external, dwarf::DW_FORM_flag, 1);
@@ -836,7 +846,7 @@
// Add name if not anonymous or intermediate type.
if (!Name.empty())
- addString(&Buffer, dwarf::DW_AT_name, dwarf::DW_FORM_string, Name);
+ addString(&Buffer, dwarf::DW_AT_name, Name);
if (Tag == dwarf::DW_TAG_enumeration_type || Tag == dwarf::DW_TAG_class_type
|| Tag == dwarf::DW_TAG_structure_type || Tag == dwarf::DW_TAG_union_type)
@@ -868,7 +878,7 @@
ParamDIE = new DIE(dwarf::DW_TAG_template_type_parameter);
addType(ParamDIE, TP.getType());
- addString(ParamDIE, dwarf::DW_AT_name, dwarf::DW_FORM_string, TP.getName());
+ addString(ParamDIE, dwarf::DW_AT_name, TP.getName());
return ParamDIE;
}
@@ -883,7 +893,7 @@
ParamDIE = new DIE(dwarf::DW_TAG_template_value_parameter);
addType(ParamDIE, TPV.getType());
if (!TPV.getName().empty())
- addString(ParamDIE, dwarf::DW_AT_name, dwarf::DW_FORM_string, TPV.getName());
+ addString(ParamDIE, dwarf::DW_AT_name, TPV.getName());
addUInt(ParamDIE, dwarf::DW_AT_const_value, dwarf::DW_FORM_udata,
TPV.getValue());
return ParamDIE;
@@ -897,7 +907,7 @@
NDie = new DIE(dwarf::DW_TAG_namespace);
insertDIE(NS, NDie);
if (!NS.getName().empty())
- addString(NDie, dwarf::DW_AT_name, dwarf::DW_FORM_string, NS.getName());
+ addString(NDie, dwarf::DW_AT_name, NS.getName());
addSourceLine(NDie, NS);
addToContextOwner(NDie, NS.getContext());
return NDie;
@@ -932,7 +942,7 @@
StringRef LinkageName = SP.getLinkageName();
if (!LinkageName.empty())
- addString(SPDie, dwarf::DW_AT_MIPS_linkage_name, dwarf::DW_FORM_string,
+ addString(SPDie, dwarf::DW_AT_MIPS_linkage_name,
getRealLinkageName(LinkageName));
// If this DIE is going to refer declaration info using AT_specification
@@ -942,7 +952,7 @@
// Constructors and operators for anonymous aggregates do not have names.
if (!SP.getName().empty())
- addString(SPDie, dwarf::DW_AT_name, dwarf::DW_FORM_string, SP.getName());
+ addString(SPDie, dwarf::DW_AT_name, SP.getName());
addSourceLine(SPDie, SP);
@@ -1048,13 +1058,12 @@
insertDIE(N, VariableDIE);
// Add name.
- addString(VariableDIE, dwarf::DW_AT_name, dwarf::DW_FORM_string,
- GV.getDisplayName());
+ addString(VariableDIE, dwarf::DW_AT_name, GV.getDisplayName());
StringRef LinkageName = GV.getLinkageName();
bool isGlobalVariable = GV.getGlobal() != NULL;
if (!LinkageName.empty() && isGlobalVariable)
addString(VariableDIE, dwarf::DW_AT_MIPS_linkage_name,
- dwarf::DW_FORM_string, getRealLinkageName(LinkageName));
+ getRealLinkageName(LinkageName));
// Add type.
DIType GTy = GV.getType();
addType(VariableDIE, GTy);
@@ -1170,7 +1179,7 @@
DIE *CompileUnit::constructEnumTypeDIE(DIEnumerator ETy) {
DIE *Enumerator = new DIE(dwarf::DW_TAG_enumerator);
StringRef Name = ETy.getName();
- addString(Enumerator, dwarf::DW_AT_name, dwarf::DW_FORM_string, Name);
+ addString(Enumerator, dwarf::DW_AT_name, Name);
int64_t Value = ETy.getEnumValue();
addSInt(Enumerator, dwarf::DW_AT_const_value, dwarf::DW_FORM_sdata, Value);
return Enumerator;
@@ -1207,8 +1216,7 @@
addDIEEntry(VariableDie, dwarf::DW_AT_abstract_origin,
dwarf::DW_FORM_ref4, AbsDIE);
else {
- addString(VariableDie, dwarf::DW_AT_name,
- dwarf::DW_FORM_string, Name);
+ addString(VariableDie, dwarf::DW_AT_name, Name);
addSourceLine(VariableDie, DV->getVariable());
addType(VariableDie, DV->getType());
}
@@ -1303,7 +1311,7 @@
DIE *MemberDie = new DIE(DT.getTag());
StringRef Name = DT.getName();
if (!Name.empty())
- addString(MemberDie, dwarf::DW_AT_name, dwarf::DW_FORM_string, Name);
+ addString(MemberDie, dwarf::DW_AT_name, Name);
addType(MemberDie, DT.getTypeDerivedFrom());
@@ -1377,16 +1385,13 @@
// Objective-C properties.
StringRef PropertyName = DT.getObjCPropertyName();
if (!PropertyName.empty()) {
- addString(MemberDie, dwarf::DW_AT_APPLE_property_name, dwarf::DW_FORM_string,
- PropertyName);
+ addString(MemberDie, dwarf::DW_AT_APPLE_property_name, PropertyName);
StringRef GetterName = DT.getObjCPropertyGetterName();
if (!GetterName.empty())
- addString(MemberDie, dwarf::DW_AT_APPLE_property_getter,
- dwarf::DW_FORM_string, GetterName);
+ addString(MemberDie, dwarf::DW_AT_APPLE_property_getter, GetterName);
StringRef SetterName = DT.getObjCPropertySetterName();
if (!SetterName.empty())
- addString(MemberDie, dwarf::DW_AT_APPLE_property_setter,
- dwarf::DW_FORM_string, SetterName);
+ addString(MemberDie, dwarf::DW_AT_APPLE_property_setter, SetterName);
unsigned PropertyAttributes = 0;
if (DT.isReadOnlyObjCProperty())
PropertyAttributes |= dwarf::DW_APPLE_PROPERTY_readonly;
Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfCompileUnit.h Thu Oct 27 01:44:11 2011
@@ -150,8 +150,7 @@
/// addString - Add a string attribute data and value.
///
- void addString(DIE *Die, unsigned Attribute, unsigned Form,
- const StringRef Str);
+ void addString(DIE *Die, unsigned Attribute, const StringRef Str);
/// addLabel - Add a Dwarf label attribute data and value.
///
Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.cpp Thu Oct 27 01:44:11 2011
@@ -136,6 +136,10 @@
DwarfDebug::~DwarfDebug() {
}
+MCSymbol *DwarfDebug::getStringPool() {
+ return Asm->GetTempSymbol("section_str");
+}
+
MCSymbol *DwarfDebug::getStringPoolEntry(StringRef Str) {
std::pair<MCSymbol*, unsigned> &Entry = StringPool[Str];
if (Entry.first) return Entry.first;
@@ -467,11 +471,10 @@
DIE *Die = new DIE(dwarf::DW_TAG_compile_unit);
CompileUnit *NewCU = new CompileUnit(ID, Die, Asm, this);
- NewCU->addString(Die, dwarf::DW_AT_producer, dwarf::DW_FORM_string,
- DIUnit.getProducer());
+ NewCU->addString(Die, dwarf::DW_AT_producer, DIUnit.getProducer());
NewCU->addUInt(Die, dwarf::DW_AT_language, dwarf::DW_FORM_data2,
DIUnit.getLanguage());
- NewCU->addString(Die, dwarf::DW_AT_name, dwarf::DW_FORM_string, FN);
+ NewCU->addString(Die, dwarf::DW_AT_name, FN);
// Use DW_AT_entry_pc instead of DW_AT_low_pc/DW_AT_high_pc pair. This
// simplifies debug range entries.
NewCU->addUInt(Die, dwarf::DW_AT_entry_pc, dwarf::DW_FORM_addr, 0);
@@ -484,14 +487,13 @@
NewCU->addUInt(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4, 0);
if (!Dir.empty())
- NewCU->addString(Die, dwarf::DW_AT_comp_dir, dwarf::DW_FORM_string, Dir);
+ NewCU->addString(Die, dwarf::DW_AT_comp_dir, Dir);
if (DIUnit.isOptimized())
NewCU->addUInt(Die, dwarf::DW_AT_APPLE_optimized, dwarf::DW_FORM_flag, 1);
StringRef Flags = DIUnit.getFlags();
if (!Flags.empty())
- NewCU->addString(Die, dwarf::DW_AT_APPLE_flags, dwarf::DW_FORM_string,
- Flags);
+ NewCU->addString(Die, dwarf::DW_AT_APPLE_flags, Flags);
if (unsigned RVer = DIUnit.getRunTimeVersion())
NewCU->addUInt(Die, dwarf::DW_AT_APPLE_major_runtime_vers,
@@ -1796,6 +1798,7 @@
// Emit the string itself.
Asm->OutStreamer.EmitBytes(Entries[i].second->getKey(), 0/*addrspace*/);
+ Asm->OutStreamer.EmitZeros(1, 0);
}
}
Modified: llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h (original)
+++ llvm/trunk/lib/CodeGen/AsmPrinter/DwarfDebug.h Thu Oct 27 01:44:11 2011
@@ -216,8 +216,6 @@
StringMap<std::pair<MCSymbol*, unsigned> > StringPool;
unsigned NextStringPoolNumber;
- MCSymbol *getStringPoolEntry(StringRef Str);
-
/// SectionMap - Provides a unique id per text section.
///
UniqueVector<const MCSection*> SectionMap;
@@ -504,6 +502,13 @@
/// createSubprogramDIE - Create new DIE using SP.
DIE *createSubprogramDIE(DISubprogram SP);
+
+ /// getStringPool - returns the entry into the start of the pool.
+ MCSymbol *getStringPool();
+
+ /// getStringPoolEntry - returns an entry into the string pool with the given
+ /// string text.
+ MCSymbol *getStringPoolEntry(StringRef Str);
};
} // End of namespace llvm
Modified: llvm/trunk/lib/MC/MCAsmInfo.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCAsmInfo.cpp?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCAsmInfo.cpp (original)
+++ llvm/trunk/lib/MC/MCAsmInfo.cpp Thu Oct 27 01:44:11 2011
@@ -91,6 +91,7 @@
DwarfRequiresRelocationForSectionOffset = true;
DwarfSectionOffsetDirective = 0;
DwarfUsesLabelOffsetForRanges = true;
+ DwarfUsesRelocationsForStringPool = true;
DwarfRegNumForCFI = false;
HasMicrosoftFastStdCallMangling = false;
Modified: llvm/trunk/lib/MC/MCAsmInfoDarwin.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCAsmInfoDarwin.cpp?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCAsmInfoDarwin.cpp (original)
+++ llvm/trunk/lib/MC/MCAsmInfoDarwin.cpp Thu Oct 27 01:44:11 2011
@@ -66,4 +66,5 @@
DwarfRequiresRelocationForSectionOffset = false;
DwarfUsesLabelOffsetForRanges = false;
+ DwarfUsesRelocationsForStringPool = false;
}
Modified: llvm/trunk/test/CodeGen/ARM/debug-info-sreg2.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/ARM/debug-info-sreg2.ll?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/ARM/debug-info-sreg2.ll (original)
+++ llvm/trunk/test/CodeGen/ARM/debug-info-sreg2.ll Thu Oct 27 01:44:11 2011
@@ -6,8 +6,8 @@
;CHECK: Ldebug_loc0:
;CHECK-NEXT: .long Ltmp1
;CHECK-NEXT: .long Ltmp2
-;CHECK-NEXT: Lset8 = Ltmp10-Ltmp9 @ Loc expr size
-;CHECK-NEXT: .short Lset8
+;CHECK-NEXT: Lset[[N:[0-9]+]] = Ltmp10-Ltmp9 @ Loc expr size
+;CHECK-NEXT: .short Lset[[N]]
;CHECK-NEXT: Ltmp9:
;CHECK-NEXT: .byte 144 @ DW_OP_regx for S register
Modified: llvm/trunk/test/CodeGen/X86/2010-06-28-DbgEntryPC.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/CodeGen/X86/2010-06-28-DbgEntryPC.ll?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/test/CodeGen/X86/2010-06-28-DbgEntryPC.ll (original)
+++ llvm/trunk/test/CodeGen/X86/2010-06-28-DbgEntryPC.ll Thu Oct 27 01:44:11 2011
@@ -5,17 +5,17 @@
; CHECK: .byte 17 ## DW_TAG_compile_unit
; CHECK-NEXT: .byte 1 ## DW_CHILDREN_yes
; CHECK-NEXT: .byte 37 ## DW_AT_producer
-; CHECK-NEXT: .byte 8 ## DW_FORM_string
+; CHECK-NEXT: .byte 14 ## DW_FORM_strp
; CHECK-NEXT: .byte 19 ## DW_AT_language
; CHECK-NEXT: .byte 5 ## DW_FORM_data2
; CHECK-NEXT: .byte 3 ## DW_AT_name
-; CHECK-NEXT: .byte 8 ## DW_FORM_string
+; CHECK-NEXT: .byte 14 ## DW_FORM_strp
; CHECK-NEXT: .byte 82 ## DW_AT_entry_pc
; CHECK-NEXT: .byte 1 ## DW_FORM_addr
; CHECK-NEXT: .byte 16 ## DW_AT_stmt_list
; CHECK-NEXT: .byte 6 ## DW_FORM_data4
; CHECK-NEXT: .byte 27 ## DW_AT_comp_dir
-; CHECK-NEXT: .byte 8 ## DW_FORM_string
+; CHECK-NEXT: .byte 14 ## DW_FORM_strp
; CHECK-NEXT: .byte 225 ## DW_AT_APPLE_optimized
%struct.a = type { i32, %struct.a* }
Modified: llvm/trunk/test/DebugInfo/2011-09-26-GlobalVarContext.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/2011-09-26-GlobalVarContext.ll?rev=143097&r1=143096&r2=143097&view=diff
==============================================================================
--- llvm/trunk/test/DebugInfo/2011-09-26-GlobalVarContext.ll (original)
+++ llvm/trunk/test/DebugInfo/2011-09-26-GlobalVarContext.ll Thu Oct 27 01:44:11 2011
@@ -2,14 +2,14 @@
; ModuleID = 'test.c'
- at GLOBAL = common global i32 0, align 4
+ at GLB = common global i32 0, align 4
define i32 @f() nounwind {
- %LOCAL = alloca i32, align 4
- call void @llvm.dbg.declare(metadata !{i32* %LOCAL}, metadata !15), !dbg !17
- %1 = load i32* @GLOBAL, align 4, !dbg !18
- store i32 %1, i32* %LOCAL, align 4, !dbg !18
- %2 = load i32* @GLOBAL, align 4, !dbg !19
+ %LOC = alloca i32, align 4
+ call void @llvm.dbg.declare(metadata !{i32* %LOC}, metadata !15), !dbg !17
+ %1 = load i32* @GLB, align 4, !dbg !18
+ store i32 %1, i32* %LOC, align 4, !dbg !18
+ %2 = load i32* @GLB, align 4, !dbg !19
ret i32 %2, !dbg !19
}
@@ -31,17 +31,17 @@
!11 = metadata !{i32 720932} ; [ DW_TAG_base_type ]
!12 = metadata !{metadata !13}
!13 = metadata !{metadata !14}
-!14 = metadata !{i32 720948, i32 0, null, metadata !"GLOBAL", metadata !"GLOBAL", metadata !"", metadata !6, i32 1, metadata !9, i32 0, i32 1, i32* @GLOBAL} ; [ DW_TAG_variable ]
-!15 = metadata !{i32 721152, metadata !16, metadata !"LOCAL", metadata !6, i32 4, metadata !9, i32 0, i32 0} ; [ DW_TAG_auto_variable ]
+!14 = metadata !{i32 720948, i32 0, null, metadata !"GLB", metadata !"GLB", metadata !"", metadata !6, i32 1, metadata !9, i32 0, i32 1, i32* @GLB} ; [ DW_TAG_variable ]
+!15 = metadata !{i32 721152, metadata !16, metadata !"LOC", metadata !6, i32 4, metadata !9, i32 0, i32 0} ; [ DW_TAG_auto_variable ]
!16 = metadata !{i32 720907, metadata !5, i32 3, i32 9, metadata !6, i32 0} ; [ DW_TAG_lexical_block ]
!17 = metadata !{i32 4, i32 9, metadata !16, null}
!18 = metadata !{i32 4, i32 23, metadata !16, null}
!19 = metadata !{i32 5, i32 5, metadata !16, null}
-; CHECK: .ascii "GLOBAL"
+; CHECK: .ascii "GLB"
; CHECK: .byte 1
; CHECK: .byte 1
-; CHECK: .ascii "LOCAL"
+; CHECK: .ascii "LOC"
; CHECK: .byte 1
; CHECK: .byte 4
Added: llvm/trunk/test/DebugInfo/stringpool.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/stringpool.ll?rev=143097&view=auto
==============================================================================
--- llvm/trunk/test/DebugInfo/stringpool.ll (added)
+++ llvm/trunk/test/DebugInfo/stringpool.ll Thu Oct 27 01:44:11 2011
@@ -0,0 +1,54 @@
+; RUN: llc -O0 -mtriple=x86_64-unknown-linux-gnu < %s | FileCheck %s --check-prefix=LINUX
+; RUN: llc -O0 -mtriple=x86_64-darwin < %s | FileCheck %s --check-prefix=DARWIN
+target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+ at x = common global i32 0, align 4
+ at yyyyyyyy = common global i32 0, align 4
+
+!llvm.dbg.cu = !{!0}
+
+!0 = metadata !{i32 720913, i32 0, i32 12, metadata !"hello.c", metadata !"/home/nlewycky", metadata !"clang version 3.1 (trunk 143048)", i1 true, i1 true, 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, metadata !8}
+!5 = metadata !{i32 720948, i32 0, null, metadata !"x", metadata !"x", metadata !"", metadata !6, i32 1, metadata !7, i32 0, i32 1, i32* @x} ; [ DW_TAG_variable ]
+!6 = metadata !{i32 720937, metadata !"hello.c", metadata !"/home/nlewycky", null} ; [ DW_TAG_file_type ]
+!7 = metadata !{i32 720932, null, metadata !"int", null, i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ]
+!8 = metadata !{i32 720948, i32 0, null, metadata !"yyyyyyyy", metadata !"yyyyyyyy", metadata !"", metadata !6, i32 2, metadata !7, i32 0, i32 1, i32* @yyyyyyyy} ; [ DW_TAG_variable ]
+
+; 120 is ASCII 'x'. Verify that we use it directly as its name and don't emit
+; a reference to the string pool.
+; LINUX: .byte 120 # DW_AT_name
+; DARWIN: .byte 120 ## DW_AT_name
+
+; Verify that we refer to 'yyyyyyyy' with a relocation.
+; LINUX: .long .Lstring{{[0-9]+}} # DW_AT_name
+; LINUX-NEXT: .long 39 # DW_AT_type
+; LINUX-NEXT: .byte 1 # DW_AT_external
+; LINUX-NEXT: .byte 1 # DW_AT_decl_file
+; LINUX-NEXT: .byte 2 # DW_AT_decl_line
+; LINUX-NEXT: .byte 9 # DW_AT_location
+; LINUX-NEXT: .byte 3
+; LINUX-NEXT: .quad yyyyyyyy
+
+; Verify that we refer to 'yyyyyyyy' without a relocation.
+; DARWIN: Lset[[N:[0-9]+]] = Lstring{{[0-9]+}}-Lsection_str ## DW_AT_name
+; DARWIN-NEXT: .long Lset[[N]]
+; DARWIN-NEXT: .long 39 ## DW_AT_type
+; DARWIN-NEXT: .byte 1 ## DW_AT_external
+; DARWIN-NEXT: .byte 1 ## DW_AT_decl_file
+; DARWIN-NEXT: .byte 2 ## DW_AT_decl_line
+; DARWIN-NEXT: .byte 9 ## DW_AT_location
+; DARWIN-NEXT: .byte 3
+; DARWIN-NEXT: .quad _yyyyyyyy
+
+
+; Verify that "yyyyyyyy" ended up in the stringpool.
+; LINUX: .section .debug_str,"MS", at progbits,1
+; LINUX-NOT: .section
+; LINUX: yyyyyyyy
+; DARWIN: .section __DWARF,__debug_str,regular,debug
+; DARWIN-NOT: .section
+; DARWIN: yyyyyyyy
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