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Remove useless code from transitioning to new EH scheme

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Removes all uses of the variable UsesNewEH. Simply return false in case that no
resume instructions were found.

llvm-svn: 183016
This commit is contained in:
Kai Nacke 2013-05-31 16:30:36 +00:00
parent ba543b13e1
commit 088c76f2a4
1 changed files with 1 additions and 4 deletions
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5
lib/CodeGen/DwarfEHPrepare.cpp
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@ -106,18 +106,15 @@ Value *DwarfEHPrepare::GetExceptionObject(ResumeInst *RI) {
/// InsertUnwindResumeCalls - Convert the ResumeInsts that are still present /// InsertUnwindResumeCalls - Convert the ResumeInsts that are still present
/// into calls to the appropriate _Unwind_Resume function. /// into calls to the appropriate _Unwind_Resume function.
bool DwarfEHPrepare::InsertUnwindResumeCalls(Function &Fn) { bool DwarfEHPrepare::InsertUnwindResumeCalls(Function &Fn) {
bool UsesNewEH = false;
SmallVector<ResumeInst*, 16> Resumes; SmallVector<ResumeInst*, 16> Resumes;
for (Function::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) { for (Function::iterator I = Fn.begin(), E = Fn.end(); I != E; ++I) {
TerminatorInst *TI = I->getTerminator(); TerminatorInst *TI = I->getTerminator();
if (ResumeInst *RI = dyn_cast<ResumeInst>(TI)) if (ResumeInst *RI = dyn_cast<ResumeInst>(TI))
Resumes.push_back(RI); Resumes.push_back(RI);
else if (InvokeInst *II = dyn_cast<InvokeInst>(TI))
UsesNewEH = II->getUnwindDest()->isLandingPad();
} }
if (Resumes.empty()) if (Resumes.empty())
return UsesNewEH; return false;
// Find the rewind function if we didn't already. // Find the rewind function if we didn't already.
if (!RewindFunction) { if (!RewindFunction) {