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Right now, Debugging information to encode scopes (DW_TAG_lexical_block) relies on DBG_LABEL. Unfortunately this intefers with the quality of optimized code.

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This patch updates dwarf writer to encode scoping information in DWARF only in FastISel mode.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@68973 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel
2009-04-13 18:13:16 +00:00
parent 0f7fef3872
commit 48c7fa21a3
4 changed files with 25 additions and 22 deletions
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11
lib/CodeGen/AsmPrinter/DwarfWriter.cpp
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@ -3296,7 +3296,7 @@ public:
}
/// ValidDebugInfo - Return true if V represents valid debug info value.
bool ValidDebugInfo(Value *V) {
bool ValidDebugInfo(Value *V, bool FastISel) {
if (!V)
return false;
@ -3335,6 +3335,11 @@ public:
case DW_TAG_subprogram:
assert(DISubprogram(GV).Verify() && "Invalid DebugInfo value");
break;
case DW_TAG_lexical_block:
/// FIXME. This interfers with the qualitfy of generated code when
/// during optimization.
if (FastISel == false)
return false;
default:
break;
}
@ -4621,8 +4626,8 @@ void DwarfWriter::EndFunction(MachineFunction *MF) {
}
/// ValidDebugInfo - Return true if V represents valid debug info value.
bool DwarfWriter::ValidDebugInfo(Value *V) {
return DD && DD->ValidDebugInfo(V);
bool DwarfWriter::ValidDebugInfo(Value *V, bool FastISel) {
return DD && DD->ValidDebugInfo(V, FastISel);
}
/// RecordSourceLine - Records location information and associates it with a