const Module *M = MMI->getModule();
+ FunctionDIs = makeSubprogramMap(*M);
+
// If module has named metadata anchors then use them, otherwise scan the
// module using debug info finder to collect debug info.
NamedMDNode *CU_Nodes = M->getNamedMetadata("llvm.dbg.cu");
if (!MMI->hasDebugInfo())
return;
+ auto DI = FunctionDIs.find(MF->getFunction());
+ if (DI == FunctionDIs.end())
+ return;
+
// Grab the lexical scopes for the function, if we don't have any of those
// then we're not going to be able to do anything.
LScopes.initialize(*MF);
// belongs to so that we add to the correct per-cu line table in the
// non-asm case.
LexicalScope *FnScope = LScopes.getCurrentFunctionScope();
+ // FnScope->getScopeNode() and DI->second should represent the same function,
+ // though they may not be the same MDNode due to inline functions merged in
+ // LTO where the debug info metadata still differs (either due to distinct
+ // written differences - two versions of a linkonce_odr function
+ // written/copied into two separate files, or some sub-optimal metadata that
+ // isn't structurally identical (see: file path/name info from clang, which
+ // includes the directory of the cpp file being built, even when the file name
+ // is absolute (such as an <> lookup header)))
DwarfCompileUnit *TheCU = SPMap.lookup(FnScope->getScopeNode());
assert(TheCU && "Unable to find compile unit!");
if (Asm->OutStreamer.hasRawTextSupport())
assert(CurFn == MF);
assert(CurFn != nullptr);
- if (!MMI->hasDebugInfo() || LScopes.empty()) {
+ if (!MMI->hasDebugInfo() || LScopes.empty() ||
+ !FunctionDIs.count(MF->getFunction())) {
// If we don't have a lexical scope for this function then there will
// be a hole in the range information. Keep note of this by setting the
// previously used section to nullptr.
DwarfAccelTable AccelNamespace;
DwarfAccelTable AccelTypes;
+ DenseMap<const Function *, DISubprogram> FunctionDIs;
+
MCDwarfDwoLineTable *getDwoLineTable(const DwarfCompileUnit &);
void addScopeVariable(LexicalScope *LS, DbgVariable *Var);
void computeIntervals();
public:
- LDVImpl(LiveDebugVariables *ps) : pass(*ps), EmitDone(false),
- ModifiedMF(false) {}
+ LDVImpl(LiveDebugVariables *ps)
+ : pass(*ps), MF(nullptr), EmitDone(false), ModifiedMF(false) {}
bool runOnMachineFunction(MachineFunction &mf);
/// clear - Release all memory.
void clear() {
+ MF = nullptr;
userValues.clear();
virtRegToEqClass.clear();
userVarMap.clear();
}
bool LDVImpl::runOnMachineFunction(MachineFunction &mf) {
+ clear();
MF = &mf;
LIS = &pass.getAnalysis<LiveIntervals>();
MDT = &pass.getAnalysis<MachineDominatorTree>();
TRI = mf.getTarget().getRegisterInfo();
- clear();
LS.initialize(mf);
DEBUG(dbgs() << "********** COMPUTING LIVE DEBUG VARIABLES: "
<< mf.getName() << " **********\n");
return Changed;
}
+static void removeDebugValues(MachineFunction &mf) {
+ for (MachineBasicBlock &MBB : mf) {
+ for (auto MBBI = MBB.begin(), MBBE = MBB.end(); MBBI != MBBE; ) {
+ if (!MBBI->isDebugValue()) {
+ ++MBBI;
+ continue;
+ }
+ MBBI = MBB.erase(MBBI);
+ }
+ }
+}
+
bool LiveDebugVariables::runOnMachineFunction(MachineFunction &mf) {
if (!EnableLDV)
return false;
+ if (!FunctionDIs.count(mf.getFunction())) {
+ removeDebugValues(mf);
+ return false;
+ }
if (!pImpl)
pImpl = new LDVImpl(this);
return static_cast<LDVImpl*>(pImpl)->runOnMachineFunction(mf);
void LDVImpl::emitDebugValues(VirtRegMap *VRM) {
DEBUG(dbgs() << "********** EMITTING LIVE DEBUG VARIABLES **********\n");
+ if (!MF)
+ return;
const TargetInstrInfo *TII = MF->getTarget().getInstrInfo();
for (unsigned i = 0, e = userValues.size(); i != e; ++i) {
DEBUG(userValues[i]->print(dbgs(), &MF->getTarget()));
static_cast<LDVImpl*>(pImpl)->emitDebugValues(VRM);
}
+bool LiveDebugVariables::doInitialization(Module &M) {
+ FunctionDIs = makeSubprogramMap(M);
+ return Pass::doInitialization(M);
+}
#ifndef NDEBUG
void LiveDebugVariables::dump() {
#define LLVM_CODEGEN_LIVEDEBUGVARIABLES_H
#include "llvm/ADT/ArrayRef.h"
+#include "llvm/IR/DebugInfo.h"
#include "llvm/CodeGen/MachineFunctionPass.h"
namespace llvm {
class LiveDebugVariables : public MachineFunctionPass {
void *pImpl;
+ DenseMap<const Function*, DISubprogram> FunctionDIs;
public:
static char ID; // Pass identification, replacement for typeid
bool runOnMachineFunction(MachineFunction &) override;
void releaseMemory() override;
void getAnalysisUsage(AnalysisUsage &) const override;
+ bool doInitialization(Module &) override;
};
!llvm.dbg.lv = !{!0, !14, !15, !16, !17, !24, !25, !28}
!0 = metadata !{i32 786689, metadata !1, metadata !"this", metadata !3, i32 11, metadata !12, i32 0, null} ; [ DW_TAG_arg_variable ]
-!1 = metadata !{i32 786478, metadata !31, metadata !2, metadata !"bar", metadata !"bar", metadata !"_ZN3foo3barEi", i32 11, metadata !9, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 true, i32 (%struct.foo*, i32)* @_ZN3foo3bazEi, null, null, null, i32 11} ; [ DW_TAG_subprogram ]
+!1 = metadata !{i32 786478, metadata !31, metadata !2, metadata !"bar", metadata !"bar", metadata !"_ZN3foo3barEi", i32 11, metadata !9, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 true, i32 (%struct.foo*, i32)* null, null, null, null, i32 11} ; [ DW_TAG_subprogram ]
!2 = metadata !{i32 786451, metadata !31, metadata !3, metadata !"foo", i32 3, i64 32, i64 32, i64 0, i32 0, null, metadata !5, i32 0, null, null, null} ; [ DW_TAG_structure_type ] [foo] [line 3, size 32, align 32, offset 0] [def] [from ]
!3 = metadata !{i32 786473, metadata !31} ; [ DW_TAG_file_type ]
!4 = metadata !{i32 786449, metadata !31, i32 4, metadata !"4.2.1 LLVM build", i1 true, metadata !"", i32 0, metadata !32, metadata !32, metadata !33, null, null, metadata !""} ; [ DW_TAG_compile_unit ]
entry:
%var1 = alloca %struct.AAA3, align 1
%var2 = alloca %struct.AAA3, align 1
- %tobool = icmp eq i32 %param2, 0
- br i1 %tobool, label %if.end, label %if.then
+ tail call void @llvm.dbg.value(metadata !{i32 %param1}, i64 0, metadata !30), !dbg !47
+ tail call void @llvm.dbg.value(metadata !{i32 %param2}, i64 0, metadata !31), !dbg !47
+ tail call void @llvm.dbg.value(metadata !48, i64 0, metadata !32), !dbg !49
+ %tobool = icmp eq i32 %param2, 0, !dbg !50
+ br i1 %tobool, label %if.end, label %if.then, !dbg !50
if.then: ; preds = %entry
- %call = call i8* @_Z5i2stri(i32 %param2)
- br label %if.end
+ %call = tail call i8* @_Z5i2stri(i32 %param2), !dbg !52
+ tail call void @llvm.dbg.value(metadata !{i8* %call}, i64 0, metadata !32), !dbg !49
+ br label %if.end, !dbg !54
if.end: ; preds = %entry, %if.then
- call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !60)
- call void @llvm.dbg.value(metadata !62, i64 0, metadata !63)
- %arraydecay.i = getelementptr inbounds %struct.AAA3* %var1, i64 0, i32 0, i64 0
- call void @_Z3fooPcjPKc(i8* %arraydecay.i, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0))
- call void @llvm.dbg.declare(metadata !{%struct.AAA3* %var2}, metadata !38)
- %arraydecay.i5 = getelementptr inbounds %struct.AAA3* %var2, i64 0, i32 0, i64 0
- call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0))
- %tobool1 = icmp eq i32 %param1, 0
- br i1 %tobool1, label %if.else, label %if.then2
+ tail call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !33), !dbg !55
+ tail call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !56), !dbg !57
+ tail call void @llvm.dbg.value(metadata !58, i64 0, metadata !59), !dbg !60
+ %arraydecay.i = getelementptr inbounds %struct.AAA3* %var1, i64 0, i32 0, i64 0, !dbg !61
+ call void @_Z3fooPcjPKc(i8* %arraydecay.i, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)), !dbg !61
+ call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !34), !dbg !63
+ call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !64), !dbg !65
+ call void @llvm.dbg.value(metadata !58, i64 0, metadata !66), !dbg !67
+ %arraydecay.i5 = getelementptr inbounds %struct.AAA3* %var2, i64 0, i32 0, i64 0, !dbg !68
+ call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)), !dbg !68
+ %tobool1 = icmp eq i32 %param1, 0, !dbg !69
+ call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !34), !dbg !63
+ br i1 %tobool1, label %if.else, label %if.then2, !dbg !69
if.then2: ; preds = %if.end
- call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([2 x i8]* @.str1, i64 0, i64 0))
- br label %if.end3
+ call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !71), !dbg !73
+ call void @llvm.dbg.value(metadata !74, i64 0, metadata !75), !dbg !76
+ call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([2 x i8]* @.str1, i64 0, i64 0)), !dbg !76
+ br label %if.end3, !dbg !72
if.else: ; preds = %if.end
- call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([2 x i8]* @.str2, i64 0, i64 0))
+ call void @llvm.dbg.value(metadata !{%struct.AAA3* %var2}, i64 0, metadata !77), !dbg !79
+ call void @llvm.dbg.value(metadata !80, i64 0, metadata !81), !dbg !82
+ call void @_Z3fooPcjPKc(i8* %arraydecay.i5, i32 4, i8* getelementptr inbounds ([2 x i8]* @.str2, i64 0, i64 0)), !dbg !82
br label %if.end3
if.end3: ; preds = %if.else, %if.then2
- call void @_Z3fooPcjPKc(i8* %arraydecay.i, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0))
- ret void
+ call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !33), !dbg !55
+ call void @llvm.dbg.value(metadata !{%struct.AAA3* %var1}, i64 0, metadata !83), !dbg !85
+ call void @llvm.dbg.value(metadata !58, i64 0, metadata !86), !dbg !87
+ call void @_Z3fooPcjPKc(i8* %arraydecay.i, i32 4, i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)), !dbg !87
+ ret void, !dbg !88
}
-; Function Attrs: nounwind readnone
-declare void @llvm.dbg.declare(metadata, metadata) #1
-
-declare i8* @_Z5i2stri(i32) #2
+declare i8* @_Z5i2stri(i32) #1
-declare void @_Z3fooPcjPKc(i8*, i32, i8*) #2
+declare void @_Z3fooPcjPKc(i8*, i32, i8*) #1
; Function Attrs: nounwind readnone
-declare void @llvm.dbg.value(metadata, i64, metadata) #1
+declare void @llvm.dbg.value(metadata, i64, metadata) #2
attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
-attributes #1 = { nounwind readnone }
-attributes #2 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
-
-!llvm.module.flags = !{!48, !49}
-!llvm.ident = !{!50}
-
-!38 = metadata !{i32 786688, null, metadata !"var2", null, i32 20, null, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [var2] [line 20]
-!48 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
-!49 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
-!50 = metadata !{metadata !"clang version 3.5 (202418)"}
-!60 = metadata !{i32 786689, null, metadata !"this", null, i32 16777216, null, i32 1088, null} ; [ DW_TAG_arg_variable ] [this] [line 0]
-!62 = metadata !{i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)}
-!63 = metadata !{i32 786689, null, metadata !"value", null, i32 33554439, null, i32 0, null} ; [ DW_TAG_arg_variable ] [value] [line 7]
+attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #2 = { nounwind readnone }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!44, !45}
+!llvm.ident = !{!46}
+
+!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 ", i1 true, metadata !"", i32 0, metadata !2, metadata !3, metadata !23, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{metadata !"dbg-changes-codegen-branch-folding.cpp", metadata !"/tmp/dbginfo"}
+!2 = metadata !{}
+!3 = metadata !{metadata !4}
+!4 = metadata !{i32 786451, metadata !1, null, metadata !"AAA3", i32 4, i64 32, i64 8, i32 0, i32 0, null, metadata !5, i32 0, null, null, metadata !"_ZTS4AAA3"} ; [ DW_TAG_structure_type ] [AAA3] [line 4, size 32, align 8, offset 0] [def] [from ]
+!5 = metadata !{metadata !6, metadata !11, metadata !17, metadata !18}
+!6 = metadata !{i32 786445, metadata !1, metadata !"_ZTS4AAA3", metadata !"text", i32 8, i64 32, i64 8, i64 0, i32 0, metadata !7} ; [ DW_TAG_member ] [text] [line 8, size 32, align 8, offset 0] [from ]
+!7 = metadata !{i32 786433, null, null, metadata !"", i32 0, i64 32, i64 8, i32 0, i32 0, metadata !8, metadata !9, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 32, align 8, offset 0] [from char]
+!8 = metadata !{i32 786468, null, null, metadata !"char", i32 0, i64 8, i64 8, i64 0, i32 0, i32 6} ; [ DW_TAG_base_type ] [char] [line 0, size 8, align 8, offset 0, enc DW_ATE_signed_char]
+!9 = metadata !{metadata !10}
+!10 = metadata !{i32 786465, i64 0, i64 4} ; [ DW_TAG_subrange_type ] [0, 3]
+!11 = metadata !{i32 786478, metadata !1, metadata !"_ZTS4AAA3", metadata !"AAA3", metadata !"AAA3", metadata !"", i32 5, metadata !12, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 true, null, null, i32 0, null, i32 5} ; [ DW_TAG_subprogram ] [line 5] [AAA3]
+!12 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !13, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!13 = metadata !{null, metadata !14, metadata !15}
+!14 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !"_ZTS4AAA3"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS4AAA3]
+!15 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !16} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
+!16 = metadata !{i32 786470, null, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, metadata !8} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from char]
+!17 = metadata !{i32 786478, metadata !1, metadata !"_ZTS4AAA3", metadata !"operator=", metadata !"operator=", metadata !"_ZN4AAA3aSEPKc", i32 6, metadata !12, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 true, null, null, i32 0, null, i32 6} ; [ DW_TAG_subprogram ] [line 6] [operator=]
+!18 = metadata !{i32 786478, metadata !1, metadata !"_ZTS4AAA3", metadata !"operator const char *", metadata !"operator const char *", metadata !"_ZNK4AAA3cvPKcEv", i32 7, metadata !19, i1 false, i1 false, i32 0, i32 0, null, i32 256, i1 true, null, null, i32 0, null, i32 7} ; [ DW_TAG_subprogram ] [line 7] [operator const char *]
+!19 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !20, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!20 = metadata !{metadata !15, metadata !21}
+!21 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 1088, metadata !22} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from ]
+!22 = metadata !{i32 786470, null, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, metadata !"_ZTS4AAA3"} ; [ DW_TAG_const_type ] [line 0, size 0, align 0, offset 0] [from _ZTS4AAA3]
+!23 = metadata !{metadata !24, metadata !35, metadata !40}
+!24 = metadata !{i32 786478, metadata !1, metadata !25, metadata !"bar", metadata !"bar", metadata !"_Z3barii", i32 11, metadata !26, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void (i32, i32)* @_Z3barii, null, null, metadata !29, i32 11} ; [ DW_TAG_subprogram ] [line 11] [def] [bar]
+!25 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
+!26 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !27, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!27 = metadata !{null, metadata !28, metadata !28}
+!28 = metadata !{i32 786468, null, null, metadata !"int", 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]
+!29 = metadata !{metadata !30, metadata !31, metadata !32, metadata !33, metadata !34}
+!30 = metadata !{i32 786689, metadata !24, metadata !"param1", metadata !25, i32 16777227, metadata !28, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [param1] [line 11]
+!31 = metadata !{i32 786689, metadata !24, metadata !"param2", metadata !25, i32 33554443, metadata !28, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [param2] [line 11]
+!32 = metadata !{i32 786688, metadata !24, metadata !"temp", metadata !25, i32 12, metadata !15, i32 0, i32 0} ; [ DW_TAG_auto_variable ] [temp] [line 12]
+!33 = metadata !{i32 786688, metadata !24, metadata !"var1", metadata !25, i32 17, metadata !"_ZTS4AAA3", i32 0, i32 0} ; [ DW_TAG_auto_variable ] [var1] [line 17]
+!34 = metadata !{i32 786688, metadata !24, metadata !"var2", metadata !25, i32 18, metadata !"_ZTS4AAA3", i32 0, i32 0} ; [ DW_TAG_auto_variable ] [var2] [line 18]
+!35 = metadata !{i32 786478, metadata !1, metadata !"_ZTS4AAA3", metadata !"operator=", metadata !"operator=", metadata !"_ZN4AAA3aSEPKc", i32 6, metadata !12, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null, null, metadata !17, metadata !36, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [operator=]
+!36 = metadata !{metadata !37, metadata !39}
+!37 = metadata !{i32 786689, metadata !35, metadata !"this", null, i32 16777216, metadata !38, i32 1088, i32 0} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!38 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !"_ZTS4AAA3"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS4AAA3]
+!39 = metadata !{i32 786689, metadata !35, metadata !"value", metadata !25, i32 33554438, metadata !15, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [value] [line 6]
+!40 = metadata !{i32 786478, metadata !1, metadata !"_ZTS4AAA3", metadata !"AAA3", metadata !"AAA3", metadata !"_ZN4AAA3C2EPKc", i32 5, metadata !12, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null, null, metadata !11, metadata !41, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [AAA3]
+!41 = metadata !{metadata !42, metadata !43}
+!42 = metadata !{i32 786689, metadata !40, metadata !"this", null, i32 16777216, metadata !38, i32 1088, i32 0} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!43 = metadata !{i32 786689, metadata !40, metadata !"value", metadata !25, i32 33554437, metadata !15, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [value] [line 5]
+!44 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
+!45 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}
+!46 = metadata !{metadata !"clang version 3.5.0 "}
+!47 = metadata !{i32 11, i32 0, metadata !24, null}
+!48 = metadata !{i8* null}
+!49 = metadata !{i32 12, i32 0, metadata !24, null}
+!50 = metadata !{i32 14, i32 0, metadata !51, null}
+!51 = metadata !{i32 786443, metadata !1, metadata !24, i32 14, i32 0, i32 0, i32 0} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
+!52 = metadata !{i32 15, i32 0, metadata !53, null}
+!53 = metadata !{i32 786443, metadata !1, metadata !51, i32 14, i32 0, i32 0, i32 1} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
+!54 = metadata !{i32 16, i32 0, metadata !53, null}
+!55 = metadata !{i32 17, i32 0, metadata !24, null}
+!56 = metadata !{i32 786689, metadata !40, metadata !"this", null, i32 16777216, metadata !38, i32 1088, metadata !55} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!57 = metadata !{i32 0, i32 0, metadata !40, metadata !55}
+!58 = metadata !{i8* getelementptr inbounds ([1 x i8]* @.str, i64 0, i64 0)}
+!59 = metadata !{i32 786689, metadata !40, metadata !"value", metadata !25, i32 33554437, metadata !15, i32 0, metadata !55} ; [ DW_TAG_arg_variable ] [value] [line 5]
+!60 = metadata !{i32 5, i32 0, metadata !40, metadata !55}
+!61 = metadata !{i32 5, i32 0, metadata !62, metadata !55}
+!62 = metadata !{i32 786443, metadata !1, metadata !40, i32 5, i32 0, i32 0, i32 3} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
+!63 = metadata !{i32 18, i32 0, metadata !24, null}
+!64 = metadata !{i32 786689, metadata !40, metadata !"this", null, i32 16777216, metadata !38, i32 1088, metadata !63} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!65 = metadata !{i32 0, i32 0, metadata !40, metadata !63}
+!66 = metadata !{i32 786689, metadata !40, metadata !"value", metadata !25, i32 33554437, metadata !15, i32 0, metadata !63} ; [ DW_TAG_arg_variable ] [value] [line 5]
+!67 = metadata !{i32 5, i32 0, metadata !40, metadata !63}
+!68 = metadata !{i32 5, i32 0, metadata !62, metadata !63}
+!69 = metadata !{i32 20, i32 0, metadata !70, null}
+!70 = metadata !{i32 786443, metadata !1, metadata !24, i32 20, i32 0, i32 0, i32 2} ; [ DW_TAG_lexical_block ] [/tmp/dbginfo/dbg-changes-codegen-branch-folding.cpp]
+!71 = metadata !{i32 786689, metadata !35, metadata !"this", null, i32 16777216, metadata !38, i32 1088, metadata !72} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!72 = metadata !{i32 21, i32 0, metadata !70, null}
+!73 = metadata !{i32 0, i32 0, metadata !35, metadata !72}
+!74 = metadata !{i8* getelementptr inbounds ([2 x i8]* @.str1, i64 0, i64 0)}
+!75 = metadata !{i32 786689, metadata !35, metadata !"value", metadata !25, i32 33554438, metadata !15, i32 0, metadata !72} ; [ DW_TAG_arg_variable ] [value] [line 6]
+!76 = metadata !{i32 6, i32 0, metadata !35, metadata !72}
+!77 = metadata !{i32 786689, metadata !35, metadata !"this", null, i32 16777216, metadata !38, i32 1088, metadata !78} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!78 = metadata !{i32 23, i32 0, metadata !70, null}
+!79 = metadata !{i32 0, i32 0, metadata !35, metadata !78}
+!80 = metadata !{i8* getelementptr inbounds ([2 x i8]* @.str2, i64 0, i64 0)}
+!81 = metadata !{i32 786689, metadata !35, metadata !"value", metadata !25, i32 33554438, metadata !15, i32 0, metadata !78} ; [ DW_TAG_arg_variable ] [value] [line 6]
+!82 = metadata !{i32 6, i32 0, metadata !35, metadata !78}
+!83 = metadata !{i32 786689, metadata !35, metadata !"this", null, i32 16777216, metadata !38, i32 1088, metadata !84} ; [ DW_TAG_arg_variable ] [this] [line 0]
+!84 = metadata !{i32 24, i32 0, metadata !24, null}
+!85 = metadata !{i32 0, i32 0, metadata !35, metadata !84}
+!86 = metadata !{i32 786689, metadata !35, metadata !"value", metadata !25, i32 33554438, metadata !15, i32 0, metadata !84} ; [ DW_TAG_arg_variable ] [value] [line 6]
+!87 = metadata !{i32 6, i32 0, metadata !35, metadata !84}
+!88 = metadata !{i32 25, i32 0, metadata !24, null}
!0 = metadata !{i32 786449, metadata !59, i32 4, metadata !"clang version 3.1 ()", i1 true, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !47, metadata !1, metadata !""} ; [ DW_TAG_compile_unit ]
!1 = metadata !{}
!3 = metadata !{metadata !5, metadata !23, metadata !27, metadata !31}
-!5 = metadata !{i32 720942, metadata !6, null, metadata !"Release", metadata !"Release", metadata !"_ZN17nsAutoRefCnt7ReleaseEv", i32 14, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32* null, null, metadata !12, metadata !20, i32 14} ; [ DW_TAG_subprogram ] [line 14] [def] [Release]
+!5 = metadata !{i32 720942, metadata !6, null, metadata !"Release", metadata !"Release", metadata !"_ZN17nsAutoRefCnt7ReleaseEv", i32 14, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32 ()* @_ZN17nsAutoRefCnt7ReleaseEv , null, metadata !12, metadata !20, i32 14} ; [ DW_TAG_subprogram ] [line 14] [def] [Release]
!6 = metadata !{i32 720937, metadata !59} ; [ DW_TAG_file_type ]
!7 = metadata !{i32 720917, i32 0, null, i32 0, i32 0, i64 0, i64 0, i32 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!8 = metadata !{metadata !9, metadata !10}
!18 = metadata !{}
!20 = metadata !{metadata !22}
!22 = metadata !{i32 786689, metadata !5, metadata !"this", metadata !6, i32 16777230, metadata !10, i32 64, i32 0} ; [ DW_TAG_arg_variable ]
-!23 = metadata !{i32 720942, metadata !6, null, metadata !"~nsAutoRefCnt", metadata !"~nsAutoRefCnt", metadata !"_ZN17nsAutoRefCntD1Ev", i32 18, metadata !16, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32* null, null, metadata !15, metadata !24, i32 18} ; [ DW_TAG_subprogram ] [line 18] [def] [~nsAutoRefCnt]
+!23 = metadata !{i32 720942, metadata !6, null, metadata !"~nsAutoRefCnt", metadata !"~nsAutoRefCnt", metadata !"_ZN17nsAutoRefCntD1Ev", i32 18, metadata !16, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, void ()* @_ZN17nsAutoRefCntD1Ev, null, metadata !15, metadata !24, i32 18} ; [ DW_TAG_subprogram ] [line 18] [def] [~nsAutoRefCnt]
!24 = metadata !{metadata !26}
!26 = metadata !{i32 786689, metadata !23, metadata !"this", metadata !6, i32 16777234, metadata !10, i32 64, i32 0} ; [ DW_TAG_arg_variable ]
!27 = metadata !{i32 720942, metadata !6, null, metadata !"~nsAutoRefCnt", metadata !"~nsAutoRefCnt", metadata !"_ZN17nsAutoRefCntD2Ev", i32 18, metadata !16, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, i32* null, null, metadata !15, metadata !28, i32 18} ; [ DW_TAG_subprogram ] [line 18] [def] [~nsAutoRefCnt]
--- /dev/null
+; REQUIRES: object-emission
+
+; RUN: llc -mtriple=i386-linux-gnu -filetype=obj -relocation-model=pic %s -o /dev/null
+
+; Derived from the test case in PR20367, there's nothing really positive to
+; test here (hence no FileCheck, etc). All that was wrong is that the debug info
+; intrinsics (introduced by inlining) in 'f1' were causing codegen to crash, but
+; since 'f1' is a nodebug function, there's no positive outcome to confirm, just
+; that debug info doesn't get in the way/cause a crash.
+
+; The test case isn't particularly well reduced/tidy, but as simple as I could
+; get the C++ source. I assume the complexity is mostly just about producing a
+; certain amount of register pressure, so it might be able to be simplified/made
+; more uniform.
+
+; Generated from:
+; $ clang-tot -cc1 -triple i386 -emit-obj -g -O3 repro.cpp
+; void sink(const void *);
+; int source();
+; void f3(int);
+;
+; extern bool b;
+;
+; struct string {
+; unsigned *mem;
+; };
+;
+; extern string &str;
+;
+; inline __attribute__((always_inline)) void s2(string *lhs) { sink(lhs->mem); }
+; inline __attribute__((always_inline)) void f() {
+; string str2;
+; s2(&str2);
+; sink(&str2);
+; }
+; void __attribute__((nodebug)) f1() {
+; for (int iter = 0; iter != 2; ++iter) {
+; f();
+; sink(str.mem);
+; if (b) return;
+; }
+; }
+
+%struct.string = type { i32* }
+
+@str = external constant %struct.string*
+@b = external global i8
+
+; Function Attrs: nounwind
+define void @_Z2f1v() #0 {
+entry:
+ %str2.i = alloca %struct.string, align 4
+ %0 = bitcast %struct.string* %str2.i to i8*, !dbg !26
+ %1 = load %struct.string** @str, align 4
+ %mem = getelementptr inbounds %struct.string* %1, i32 0, i32 0
+ br label %for.body
+
+for.body: ; preds = %for.body, %entry
+ %iter.02 = phi i32 [ 0, %entry ], [ %inc, %for.body ]
+ call void @llvm.lifetime.start(i64 4, i8* %0), !dbg !26
+ call void @llvm.dbg.value(metadata !{%struct.string* %str2.i}, i64 0, metadata !16) #3, !dbg !26
+ call void @llvm.dbg.value(metadata !{%struct.string* %str2.i}, i64 0, metadata !27) #3, !dbg !29
+ call void @_Z4sinkPKv(i8* undef) #3, !dbg !29
+ call void @_Z4sinkPKv(i8* %0) #3, !dbg !30
+ call void @llvm.lifetime.end(i64 4, i8* %0), !dbg !31
+ %2 = load i32** %mem, align 4, !tbaa !32
+ %3 = bitcast i32* %2 to i8*
+ call void @_Z4sinkPKv(i8* %3) #3
+ %4 = load i8* @b, align 1, !tbaa !37, !range !39
+ %tobool = icmp ne i8 %4, 0
+ %inc = add nsw i32 %iter.02, 1
+ %cmp = icmp eq i32 %inc, 2
+ %or.cond = or i1 %tobool, %cmp
+ br i1 %or.cond, label %for.end, label %for.body
+
+for.end: ; preds = %for.body
+ ret void
+}
+
+declare void @_Z4sinkPKv(i8*) #1
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.value(metadata, i64, metadata) #2
+
+; Function Attrs: nounwind
+declare void @llvm.lifetime.start(i64, i8* nocapture) #3
+
+; Function Attrs: nounwind
+declare void @llvm.lifetime.end(i64, i8* nocapture) #3
+
+attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #2 = { nounwind readnone }
+attributes #3 = { nounwind }
+
+!llvm.dbg.cu = !{!0}
+!llvm.module.flags = !{!23, !24}
+!llvm.ident = !{!25}
+
+!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 ", i1 true, metadata !"", i32 0, metadata !2, metadata !3, metadata !10, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/<stdin>] [DW_LANG_C_plus_plus]
+!1 = metadata !{metadata !"<stdin>", metadata !"/tmp/dbginfo"}
+!2 = metadata !{}
+!3 = metadata !{metadata !4}
+!4 = metadata !{i32 786451, metadata !5, null, metadata !"string", i32 7, i64 32, i64 32, i32 0, i32 0, null, metadata !6, i32 0, null, null, metadata !"_ZTS6string"} ; [ DW_TAG_structure_type ] [string] [line 7, size 32, align 32, offset 0] [def] [from ]
+!5 = metadata !{metadata !"repro.cpp", metadata !"/tmp/dbginfo"}
+!6 = metadata !{metadata !7}
+!7 = metadata !{i32 786445, metadata !5, metadata !"_ZTS6string", metadata !"mem", i32 8, i64 32, i64 32, i64 0, i32 0, metadata !8} ; [ DW_TAG_member ] [mem] [line 8, size 32, align 32, offset 0] [from ]
+!8 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 32, i64 32, i64 0, i32 0, metadata !9} ; [ DW_TAG_pointer_type ] [line 0, size 32, align 32, offset 0] [from unsigned int]
+!9 = metadata !{i32 786468, null, null, metadata !"unsigned int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 7} ; [ DW_TAG_base_type ] [unsigned int] [line 0, size 32, align 32, offset 0, enc DW_ATE_unsigned]
+!10 = metadata !{metadata !11, metadata !17}
+!11 = metadata !{i32 786478, metadata !5, metadata !12, metadata !"f", metadata !"f", metadata !"_Z1fv", i32 14, metadata !13, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null, null, null, metadata !15, i32 14} ; [ DW_TAG_subprogram ] [line 14] [def] [f]
+!12 = metadata !{i32 786473, metadata !5} ; [ DW_TAG_file_type ] [/tmp/dbginfo/repro.cpp]
+!13 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !14, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!14 = metadata !{null}
+!15 = metadata !{metadata !16}
+!16 = metadata !{i32 786688, metadata !11, metadata !"str2", metadata !12, i32 15, metadata !"_ZTS6string", i32 0, i32 0} ; [ DW_TAG_auto_variable ] [str2] [line 15]
+!17 = metadata !{i32 786478, metadata !5, metadata !12, metadata !"s2", metadata !"s2", metadata !"_Z2s2P6string", i32 13, metadata !18, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 true, null, null, null, metadata !21, i32 13} ; [ DW_TAG_subprogram ] [line 13] [def] [s2]
+!18 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !19, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!19 = metadata !{null, metadata !20}
+!20 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 32, i64 32, i64 0, i32 0, metadata !"_ZTS6string"} ; [ DW_TAG_pointer_type ] [line 0, size 32, align 32, offset 0] [from _ZTS6string]
+!21 = metadata !{metadata !22}
+!22 = metadata !{i32 786689, metadata !17, metadata !"lhs", metadata !12, i32 16777229, metadata !20, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [lhs] [line 13]
+!23 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
+!24 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}
+!25 = metadata !{metadata !"clang version 3.5.0 "}
+!26 = metadata !{i32 15, i32 0, metadata !11, null}
+!27 = metadata !{i32 786689, metadata !17, metadata !"lhs", metadata !12, i32 16777229, metadata !20, i32 0, metadata !28} ; [ DW_TAG_arg_variable ] [lhs] [line 13]
+!28 = metadata !{i32 16, i32 0, metadata !11, null}
+!29 = metadata !{i32 13, i32 0, metadata !17, metadata !28}
+!30 = metadata !{i32 17, i32 0, metadata !11, null}
+!31 = metadata !{i32 18, i32 0, metadata !11, null}
+!32 = metadata !{metadata !33, metadata !34, i64 0}
+!33 = metadata !{metadata !"_ZTS6string", metadata !34, i64 0}
+!34 = metadata !{metadata !"any pointer", metadata !35, i64 0}
+!35 = metadata !{metadata !"omnipotent char", metadata !36, i64 0}
+!36 = metadata !{metadata !"Simple C/C++ TBAA"}
+!37 = metadata !{metadata !38, metadata !38, i64 0}
+!38 = metadata !{metadata !"bool", metadata !35, i64 0}
+!39 = metadata !{i8 0, i8 2}
--- /dev/null
+; REQUIRES: object-emission
+
+; RUN: %llc_dwarf -O0 -filetype=obj < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
+
+; Testing that two distinct (distinct by writing them in separate files, while
+; still fulfilling C++'s ODR by having identical token sequences) functions,
+; linked under LTO, get plausible debug info (and don't crash).
+
+; Built from source:
+; $ clang++ a.cpp b.cpp -g -c -emit-llvm
+; $ llvm-link a.bc b.bc -o ab.bc
+
+; This change is intended to tickle a case where the subprogram MDNode
+; associated with the llvm::Function will differ from the subprogram
+; referenced by the DbgLocs in the function.
+
+; $ sed -ie "s/!12, !0/!0, !12/" ab.ll
+; $ cat a.cpp
+; inline int func(int i) {
+; return i * 2;
+; }
+; int (*x)(int) = &func;
+; $ cat b.cpp
+; inline int func(int i) {
+; return i * 2;
+; }
+; int (*y)(int) = &func;
+
+; CHECK: DW_TAG_compile_unit
+; CHECK: DW_TAG_subprogram
+; CHECK-NOT: DW_TAG
+; CHECK: DW_AT_name {{.*}} "func"
+; CHECK: DW_TAG_compile_unit
+
+; FIXME: Maybe we should drop the subprogram here - since the function was
+; emitted in one CU, due to linkonce_odr uniquing. We certainly don't emit the
+; subprogram here if the source location for this definition is the same (see
+; test/DebugInfo/cross-cu-linkonce.ll), though it's very easy to tickle that
+; into failing even without duplicating the source as has been done in this
+; case (two cpp files in different directories, including the same header that
+; contains an inline function - clang will produce distinct subprogram metadata
+; that won't deduplicate owing to the file location information containing the
+; directory of the source file even though the file name is absolute, not
+; relative)
+
+; CHECK: DW_TAG_subprogram
+
+@x = global i32 (i32)* @_Z4funci, align 8
+@y = global i32 (i32)* @_Z4funci, align 8
+
+; Function Attrs: inlinehint nounwind uwtable
+define linkonce_odr i32 @_Z4funci(i32 %i) #0 {
+ %1 = alloca i32, align 4
+ store i32 %i, i32* %1, align 4
+ call void @llvm.dbg.declare(metadata !{i32* %1}, metadata !22), !dbg !23
+ %2 = load i32* %1, align 4, !dbg !24
+ %3 = mul nsw i32 %2, 2, !dbg !24
+ ret i32 %3, !dbg !24
+}
+
+; Function Attrs: nounwind readnone
+declare void @llvm.dbg.declare(metadata, metadata) #1
+
+attributes #0 = { inlinehint nounwind uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+attributes #1 = { nounwind readnone }
+
+!llvm.dbg.cu = !{!12, !0}
+!llvm.module.flags = !{!19, !20}
+!llvm.ident = !{!21, !21}
+
+!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !9, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/a.cpp] [DW_LANG_C_plus_plus]
+!1 = metadata !{metadata !"a.cpp", metadata !"/tmp/dbginfo"}
+!2 = metadata !{}
+!3 = metadata !{metadata !4}
+!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"func", metadata !"func", metadata !"_Z4funci", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @_Z4funci, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [func]
+!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/a.cpp]
+!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!7 = metadata !{metadata !8, metadata !8}
+!8 = metadata !{i32 786468, null, null, metadata !"int", 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]
+!9 = metadata !{metadata !10}
+!10 = metadata !{i32 786484, i32 0, null, metadata !"x", metadata !"x", metadata !"", metadata !5, i32 4, metadata !11, i32 0, i32 1, i32 (i32)** @x, null} ; [ DW_TAG_variable ] [x] [line 4] [def]
+!11 = metadata !{i32 786447, null, null, metadata !"", i32 0, i64 64, i64 64, i64 0, i32 0, metadata !6} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from ]
+!12 = metadata !{i32 786449, metadata !13, i32 4, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !14, metadata !17, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/b.cpp] [DW_LANG_C_plus_plus]
+!13 = metadata !{metadata !"b.cpp", metadata !"/tmp/dbginfo"}
+!14 = metadata !{metadata !15}
+!15 = metadata !{i32 786478, metadata !13, metadata !16, metadata !"func", metadata !"func", metadata !"_Z4funci", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @_Z4funci, null, null, metadata !2, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [func]
+!16 = metadata !{i32 786473, metadata !13} ; [ DW_TAG_file_type ] [/tmp/dbginfo/b.cpp]
+!17 = metadata !{metadata !18}
+!18 = metadata !{i32 786484, i32 0, null, metadata !"y", metadata !"y", metadata !"", metadata !16, i32 4, metadata !11, i32 0, i32 1, i32 (i32)** @y, null} ; [ DW_TAG_variable ] [y] [line 4] [def]
+!19 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
+!20 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!21 = metadata !{metadata !"clang version 3.5.0 "}
+!22 = metadata !{i32 786689, metadata !4, metadata !"i", metadata !5, i32 16777217, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [i] [line 1]
+!23 = metadata !{i32 1, i32 0, metadata !4, null}
+!24 = metadata !{i32 2, i32 0, metadata !4, null}
--- /dev/null
+; REQUIRES: object-emission
+
+; RUN: %llc_dwarf < %s -filetype=obj | llvm-dwarfdump -debug-dump=info - | FileCheck %s
+
+; Test that a nodebug function (a function not appearing in the debug info IR
+; metadata subprogram list) with DebugLocs on its IR doesn't cause crashes/does
+; the right thing.
+
+; Build with clang from the following:
+; extern int i;
+; inline __attribute__((always_inline)) void f1() {
+; i = 3;
+; }
+;
+; __attribute__((nodebug)) void f2() {
+; f1();
+; }
+
+; Check that there's only one DW_TAG_subprogram, nothing for the 'f2' function.
+; CHECK: DW_TAG_subprogram
+; CHECK-NOT: DW_TAG
+; CHECK: DW_AT_name {{.*}} "f1"
+; CHECK-NOT: DW_TAG_subprogram
+
+@i = external global i32
+
+; Function Attrs: uwtable
+define void @_Z2f2v() #0 {
+entry:
+ store i32 3, i32* @i, align 4, !dbg !11
+ ret void
+}
+
+attributes #0 = { uwtable "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
+
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+!llvm.module.flags = !{!8, !9}
+!llvm.ident = !{!10}
+
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