use isInstructionTriviallyDead, as pointed out by Duncan

llvm-svn: 87035
This commit is contained in:
Chris Lattner 2009-11-12 21:58:18 +00:00
parent 1e8e66866e
commit 9a1f2aaff0

View File

@ -19,10 +19,11 @@
#include "llvm/IntrinsicInst.h"
#include "llvm/Analysis/CallGraph.h"
#include "llvm/Analysis/InlineCost.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Transforms/IPO/InlinerPass.h"
#include "llvm/Transforms/Utils/Cloning.h"
#include "llvm/Transforms/Utils/Local.h"
#include "llvm/Support/CallSite.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/raw_ostream.h"
@ -344,8 +345,7 @@ bool Inliner::runOnSCC(std::vector<CallGraphNode*> &SCC) {
// just delete the call instead of trying to inline it, regardless of
// size. This happens because IPSCCP propagates the result out of the
// call and then we're left with the dead call.
if (CS.getInstruction()->use_empty() &&
!CS.getInstruction()->mayHaveSideEffects()) {
if (isInstructionTriviallyDead(CS.getInstruction())) {
DEBUG(errs() << " -> Deleting dead call: "
<< *CS.getInstruction() << "\n");
// Update the call graph by deleting the edge from Callee to Caller.