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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.

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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
This commit is contained in:
Devang Patel
2009-08-25 05:24:07 +00:00
parent 4bda11fbda
commit 2a610c7387
47 changed files with 966 additions and 1933 deletions
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6
lib/Transforms/Utils/InlineFunction.cpp
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@@ -207,17 +207,17 @@ static void UpdateCallGraphAfterInlining(CallSite CS,
/// to the llvm.dbg.func.start of the function F. Otherwise return NULL.
static const DbgRegionEndInst *findFnRegionEndMarker(const Function *F) {
GlobalVariable *FnStart = NULL;
MDNode *FnStart = NULL;
const DbgRegionEndInst *FnEnd = NULL;
for (Function::const_iterator FI = F->begin(), FE =F->end(); FI != FE; ++FI)
for (BasicBlock::const_iterator BI = FI->begin(), BE = FI->end(); BI != BE;
++BI) {
if (FnStart == NULL) {
if (const DbgFuncStartInst *FSI = dyn_cast<DbgFuncStartInst>(BI)) {
DISubprogram SP(cast<GlobalVariable>(FSI->getSubprogram()));
DISubprogram SP(FSI->getSubprogram());
assert (SP.isNull() == false && "Invalid llvm.dbg.func.start");
if (SP.describes(F))
FnStart = SP.getGV();
FnStart = SP.getNode();
}
} else {
if (const DbgRegionEndInst *REI = dyn_cast<DbgRegionEndInst>(BI))