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For dwarf4 use the correct form for referencing debug_loc locations,
and update test cases accordingly. This doesn't affect the output dumped using llvm-dwarfdump, but readelf does now dump the debug_loc section. llvm-svn: 194898
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@ -1772,7 +1772,9 @@ DIE *CompileUnit::constructVariableDIE(DbgVariable &DV, bool isScopeAbstract) {
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unsigned Offset = DV.getDotDebugLocOffset();
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unsigned Offset = DV.getDotDebugLocOffset();
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if (Offset != ~0U) {
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if (Offset != ~0U) {
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addLabel(VariableDie, dwarf::DW_AT_location, dwarf::DW_FORM_data4,
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addLabel(VariableDie, dwarf::DW_AT_location,
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DD->getDwarfVersion() >= 4 ? dwarf::DW_FORM_sec_offset
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: dwarf::DW_FORM_data4,
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Asm->GetTempSymbol("debug_loc", Offset));
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Asm->GetTempSymbol("debug_loc", Offset));
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DV.setDIE(VariableDie);
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DV.setDIE(VariableDie);
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return VariableDie;
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return VariableDie;
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@ -2118,7 +2118,7 @@ void DwarfDebug::emitDIE(DIE *Die, ArrayRef<DIEAbbrev *> Abbrevs) {
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case dwarf::DW_AT_location: {
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case dwarf::DW_AT_location: {
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if (DIELabel *L = dyn_cast<DIELabel>(Values[i])) {
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if (DIELabel *L = dyn_cast<DIELabel>(Values[i])) {
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if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
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if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
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Asm->EmitLabelReference(L->getValue(), 4);
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Asm->EmitSectionOffset(L->getValue(), DwarfDebugLocSectionSym);
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else
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else
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Asm->EmitLabelDifference(L->getValue(), DwarfDebugLocSectionSym, 4);
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Asm->EmitLabelDifference(L->getValue(), DwarfDebugLocSectionSym, 4);
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} else {
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} else {
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@ -5,7 +5,7 @@
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; CHECK: DW_TAG_subprogram [3]
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; CHECK: DW_TAG_subprogram [3]
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; CHECK: DW_TAG_variable [5]
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; CHECK: DW_TAG_variable [5]
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; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[{{.*}}] = "block")
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; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[{{.*}}] = "block")
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; CHECK: DW_AT_location [DW_FORM_data4] ({{.*}})
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; CHECK: DW_AT_location [DW_FORM_sec_offset] ({{.*}})
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%struct.__block_descriptor = type { i64, i64 }
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%struct.__block_descriptor = type { i64, i64 }
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%struct.__block_literal_generic = type { i8*, i32, i32, i8*, %struct.__block_descriptor* }
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%struct.__block_literal_generic = type { i8*, i32, i32, i8*, %struct.__block_descriptor* }
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@ -4,7 +4,7 @@
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; DW-CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000067] = "vla")
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; DW-CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000067] = "vla")
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; FIXME: The location here needs to be fixed, but llvm-dwarfdump doesn't handle
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; FIXME: The location here needs to be fixed, but llvm-dwarfdump doesn't handle
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; DW_AT_location lists yet.
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; DW_AT_location lists yet.
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; DW-CHECK: DW_AT_location [DW_FORM_data4] (0x00000000)
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; DW-CHECK: DW_AT_location [DW_FORM_sec_offset] (0x00000000)
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; Unfortunately llvm-dwarfdump can't unparse a list of DW_AT_locations
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; Unfortunately llvm-dwarfdump can't unparse a list of DW_AT_locations
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; right now, so we check the asm output:
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; right now, so we check the asm output:
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