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Refactor. It is inliner's responsibility to update line number information.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@134708 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Devang Patel 2011-07-08 18:01:31 +00:00
parent 549a85138c
commit 2cf158ec4b
2 changed files with 40 additions and 38 deletions
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40
lib/Transforms/Utils/CloneFunction.cpp
View File

@ -418,51 +418,15 @@ void llvm::CloneAndPruneFunctionInto(Function *NewFunc, const Function *OldFunc,
if (PHINode *PN = dyn_cast<PHINode>(I)) {
// Skip over all PHI nodes, remembering them for later.
BasicBlock::const_iterator OldI = BI->begin();
for (; (PN = dyn_cast<PHINode>(I)); ++I, ++OldI) {
if (I->hasMetadata()) {
if (!TheCallDL.isUnknown()) {
DebugLoc IDL = I->getDebugLoc();
if (!IDL.isUnknown()) {
DebugLoc NewDL = UpdateInlinedAtInfo(IDL, TheCallDL,
I->getContext());
I->setDebugLoc(NewDL);
}
} else {
// The cloned instruction has dbg info but the call instruction
// does not have dbg info. Remove dbg info from cloned instruction.
I->setDebugLoc(DebugLoc());
}
}
for (; (PN = dyn_cast<PHINode>(I)); ++I, ++OldI)
PHIToResolve.push_back(cast<PHINode>(OldI));
}
}
// FIXME:
// FIXME:
// FIXME: Unclone all this metadata stuff.
// FIXME:
// FIXME:
// Otherwise, remap the rest of the instructions normally.
for (; I != NewBB->end(); ++I) {
if (I->hasMetadata()) {
if (!TheCallDL.isUnknown()) {
DebugLoc IDL = I->getDebugLoc();
if (!IDL.isUnknown()) {
DebugLoc NewDL = UpdateInlinedAtInfo(IDL, TheCallDL,
I->getContext());
I->setDebugLoc(NewDL);
}
} else {
// The cloned instruction has dbg info but the call instruction
// does not have dbg info. Remove dbg info from cloned instruction.
I->setDebugLoc(DebugLoc());
}
}
for (; I != NewBB->end(); ++I)
RemapInstruction(I, VMap,
ModuleLevelChanges ? RF_None : RF_NoModuleLevelChanges);
}
}
// Defer PHI resolution until rest of function is resolved, PHI resolution
// requires the CFG to be up-to-date.

38
lib/Transforms/Utils/InlineFunction.cpp
View File

@ -744,6 +744,41 @@ static bool hasLifetimeMarkers(AllocaInst *AI) {
return false;
}
/// updateInlinedAtInfo - Helper function used by fixupLineNumbers to recursively
/// update InlinedAtEntry of a DebugLoc.
static DebugLoc updateInlinedAtInfo(const DebugLoc &DL,
const DebugLoc &InlinedAtDL,
LLVMContext &Ctx) {
if (MDNode *IA = DL.getInlinedAt(Ctx)) {
DebugLoc NewInlinedAtDL
= updateInlinedAtInfo(DebugLoc::getFromDILocation(IA), InlinedAtDL, Ctx);
return DebugLoc::get(DL.getLine(), DL.getCol(), DL.getScope(Ctx),
NewInlinedAtDL.getAsMDNode(Ctx));
}
return DebugLoc::get(DL.getLine(), DL.getCol(), DL.getScope(Ctx),
InlinedAtDL.getAsMDNode(Ctx));
}
/// fixupLineNumbers - Update inlined instructions' line numbers to
/// to encode location where these instructions are inlined.
static void fixupLineNumbers(Function *Fn, Function::iterator FI,
Instruction *TheCall) {
DebugLoc TheCallDL = TheCall->getDebugLoc();
if (TheCallDL.isUnknown())
return;
for (; FI != Fn->end(); ++FI) {
for (BasicBlock::iterator BI = FI->begin(), BE = FI->end();
BI != BE; ++BI) {
DebugLoc DL = BI->getDebugLoc();
if (!DL.isUnknown())
BI->setDebugLoc(updateInlinedAtInfo(DL, TheCallDL, BI->getContext()));
}
}
}
// InlineFunction - This function inlines the called function into the basic
// block of the caller. This returns false if it is not possible to inline this
// call. The program is still in a well defined state if this occurs though.
@ -846,6 +881,9 @@ bool llvm::InlineFunction(CallSite CS, InlineFunctionInfo &IFI) {
// Update the callgraph if requested.
if (IFI.CG)
UpdateCallGraphAfterInlining(CS, FirstNewBlock, VMap, IFI);
// Update inlined instructions' line number information.
fixupLineNumbers(Caller, FirstNewBlock, TheCall);
}
// If there are any alloca instructions in the block that used to be the entry