Let the fallthrough handle whether or not we've changed anything

before we try to optimize.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@97876 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Eric Christopher 2010-03-06 10:59:25 +00:00
parent 27ceaa13f8
commit 7b323a34fa

View File

@ -948,7 +948,9 @@ Instruction *InstCombiner::visitCallSite(CallSite CS) {
// delete the instruction now.
if (CallInst *CI = dyn_cast<CallInst>(CS.getInstruction())) {
Instruction *I = tryOptimizeCall(CI, TD);
return I ? EraseInstFromFunction(*I): 0;
// If we changed something return the result, etc. Otherwise let
// the fallthrough check.
if (I) return EraseInstFromFunction(*I);
}
return Changed ? CS.getInstruction() : 0;