Update DebugInfo interface to use metadata, instead of special named llvm.dbg.... global variables, to encode debugging information in llvm IR. This is mostly a mechanical change that tests metadata support very well.
This change speeds up llvm-gcc by more then 6% at "-O0 -g" (measured by compiling InstructionCombining.cpp!)
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79977 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
index c8099c8..23f62db 100644
--- a/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
+++ b/lib/CodeGen/AsmPrinter/AsmPrinter.cpp
@@ -1739,11 +1739,10 @@
// Print source line info.
O.PadToColumn(MAI->getCommentColumn());
O << MAI->getCommentString() << " SrcLine ";
- if (DLT.CompileUnit->hasInitializer()) {
- Constant *Name = DLT.CompileUnit->getInitializer();
- if (ConstantArray *NameString = dyn_cast<ConstantArray>(Name))
- if (NameString->isString())
- O << NameString->getAsString() << " ";
+ if (DLT.CompileUnit) {
+ std::string Str;
+ DICompileUnit CU(DLT.CompileUnit);
+ O << CU.getFilename(Str) << " ";
}
O << DLT.Line;
if (DLT.Col != 0)
@@ -1761,11 +1760,10 @@
// Print source line info
O.PadToColumn(MAI->getCommentColumn());
O << MAI->getCommentString() << " SrcLine ";
- if (DLT.CompileUnit->hasInitializer()) {
- Constant *Name = DLT.CompileUnit->getInitializer();
- if (ConstantArray *NameString = dyn_cast<ConstantArray>(Name))
- if (NameString->isString())
- O << NameString->getAsString() << " ";
+ if (DLT.CompileUnit) {
+ std::string Str;
+ DICompileUnit CU(DLT.CompileUnit);
+ O << CU.getFilename(Str) << " ";
}
O << DLT.Line;
if (DLT.Col != 0)