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Move the addition of the dwo_id as late as possible after everything

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has been finalized except for sizes and offsets. Update test accordingly.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188199 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2013-08-12 20:27:48 +00:00
parent d275ff5d4c
commit f962c02b80
2 changed files with 26 additions and 23 deletions
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45
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
View File

@ -888,15 +888,6 @@ void DwarfDebug::beginModule() {
// available.
for (unsigned i = 0, e = ImportedEntities.getNumElements(); i != e; ++i)
constructImportedEntityDIE(CU, ImportedEntities.getElement(i));
// If we're splitting the dwarf out now that we've got the entire
// CU then construct a skeleton CU based upon it.
if (useSplitDwarf()) {
// This should be a unique identifier when we want to build .dwp files.
CU->addUInt(CU->getCUDie(), dwarf::DW_AT_GNU_dwo_id,
dwarf::DW_FORM_data8, 0);
// Now construct the skeleton CU associated.
constructSkeletonCU(CUNode);
}
}
// Tell MMI that we have debug info.
@ -1005,14 +996,6 @@ void DwarfDebug::finalizeModuleInfo() {
// Attach DW_AT_inline attribute with inlined subprogram DIEs.
computeInlinedDIEs();
// Emit DW_AT_containing_type attribute to connect types with their
// vtable holding type.
for (DenseMap<const MDNode *, CompileUnit *>::iterator CUI = CUMap.begin(),
CUE = CUMap.end(); CUI != CUE; ++CUI) {
CompileUnit *TheCU = CUI->second;
TheCU->constructContainingTypeDIEs();
}
// Split out type units and conditionally add an ODR tag to the split
// out type.
// FIXME: Do type splitting.
@ -1029,7 +1012,30 @@ void DwarfDebug::finalizeModuleInfo() {
Hash.computeDIEODRSignature(Die));
}
// Compute DIE offsets and sizes.
// Handle anything that needs to be done on a per-cu basis.
for (DenseMap<const MDNode *, CompileUnit *>::iterator CUI = CUMap.begin(),
CUE = CUMap.end();
CUI != CUE; ++CUI) {
CompileUnit *TheCU = CUI->second;
// Emit DW_AT_containing_type attribute to connect types with their
// vtable holding type.
TheCU->constructContainingTypeDIEs();
// If we're splitting the dwarf out now that we've got the entire
// CU then construct a skeleton CU based upon it.
if (useSplitDwarf()) {
// This should be a unique identifier when we want to build .dwp files.
TheCU->addUInt(TheCU->getCUDie(), dwarf::DW_AT_GNU_dwo_id,
dwarf::DW_FORM_data8, 0);
// Now construct the skeleton CU associated.
CompileUnit *SkCU = constructSkeletonCU(CUI->first);
// This should be a unique identifier when we want to build .dwp files.
SkCU->addUInt(SkCU->getCUDie(), dwarf::DW_AT_GNU_dwo_id,
dwarf::DW_FORM_data8, 0);
}
}
// Compute DIE offsets and sizes.
InfoHolder.computeSizeAndOffsets();
if (useSplitDwarf())
SkeletonHolder.computeSizeAndOffsets();
@ -2686,9 +2692,6 @@ CompileUnit *DwarfDebug::constructSkeletonCU(const MDNode *N) {
NewCU->addLocalString(Die, dwarf::DW_AT_GNU_dwo_name,
DIUnit.getSplitDebugFilename());
// This should be a unique identifier when we want to build .dwp files.
NewCU->addUInt(Die, dwarf::DW_AT_GNU_dwo_id, dwarf::DW_FORM_data8, 0);
// Relocate to the beginning of the addr_base section, else 0 for the
// beginning of the one for this compile unit.
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())

4
test/DebugInfo/X86/fission-cu.ll
View File

@ -23,20 +23,20 @@
; CHECK: Abbrev table for offset: 0x00000000
; CHECK: [1] DW_TAG_compile_unit DW_CHILDREN_no
; CHECK: DW_AT_GNU_dwo_name DW_FORM_strp
; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8
; CHECK: DW_AT_GNU_addr_base DW_FORM_sec_offset
; CHECK: DW_AT_low_pc DW_FORM_addr
; CHECK: DW_AT_stmt_list DW_FORM_sec_offset
; CHECK: DW_AT_comp_dir DW_FORM_strp
; CHECK: DW_AT_GNU_dwo_id DW_FORM_data8
; CHECK: .debug_info contents:
; CHECK: DW_TAG_compile_unit
; CHECK: DW_AT_GNU_dwo_name [DW_FORM_strp] ( .debug_str[0x00000000] = "baz.dwo")
; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x0000000000000000)
; CHECK: DW_AT_GNU_addr_base [DW_FORM_sec_offset] (0x00000000)
; CHECK: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset] (0x00000000)
; CHECK: DW_AT_comp_dir [DW_FORM_strp] ( .debug_str[0x00000008] = "/usr/local/google/home/echristo/tmp")
; CHECK: DW_AT_GNU_dwo_id [DW_FORM_data8] (0x0000000000000000)
; CHECK: .debug_str contents:
; CHECK: 0x00000000: "baz.dwo"