[llvm-commits] [llvm] r138102 - /llvm/trunk/lib/Transforms/Scalar/ADCE.cpp
Bill Wendling
isanbard at gmail.com
Fri Aug 19 14:52:06 PDT 2011
Author: void
Date: Fri Aug 19 16:52:06 2011
New Revision: 138102
URL: http://llvm.org/viewvc/llvm-project?rev=138102&view=rev
Log:
The landingpad instruction isn't dead simply because it's value isn't used.
Modified:
llvm/trunk/lib/Transforms/Scalar/ADCE.cpp
Modified: llvm/trunk/lib/Transforms/Scalar/ADCE.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/Transforms/Scalar/ADCE.cpp?rev=138102&r1=138101&r2=138102&view=diff
==============================================================================
--- llvm/trunk/lib/Transforms/Scalar/ADCE.cpp (original)
+++ llvm/trunk/lib/Transforms/Scalar/ADCE.cpp Fri Aug 19 16:52:06 2011
@@ -57,6 +57,7 @@
for (inst_iterator I = inst_begin(F), E = inst_end(F); I != E; ++I)
if (isa<TerminatorInst>(I.getInstructionIterator()) ||
isa<DbgInfoIntrinsic>(I.getInstructionIterator()) ||
+ isa<LandingPadInst>(I.getInstructionIterator()) ||
I->mayHaveSideEffects()) {
alive.insert(I.getInstructionIterator());
worklist.push_back(I.getInstructionIterator());
@@ -65,7 +66,6 @@
// Propagate liveness backwards to operands.
while (!worklist.empty()) {
Instruction* curr = worklist.pop_back_val();
-
for (Instruction::op_iterator OI = curr->op_begin(), OE = curr->op_end();
OI != OE; ++OI)
if (Instruction* Inst = dyn_cast<Instruction>(OI))
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