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Second batch of passes using LLVMContext.

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@74753 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Owen Anderson
2009-07-03 00:54:20 +00:00
parent 2889ccea62
commit 1ff50b380e
5 changed files with 46 additions and 37 deletions
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5
lib/Transforms/Scalar/LICM.cpp
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@@ -36,6 +36,7 @@
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Instructions.h"
#include "llvm/LLVMContext.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Analysis/LoopInfo.h"
#include "llvm/Analysis/LoopPass.h"
@@ -482,7 +483,7 @@ void LICM::sink(Instruction &I) {
// Instruction is not used, just delete it.
CurAST->deleteValue(&I);
if (!I.use_empty()) // If I has users in unreachable blocks, eliminate.
I.replaceAllUsesWith(UndefValue::get(I.getType()));
I.replaceAllUsesWith(Context->getUndef(I.getType()));
I.eraseFromParent();
} else {
// Move the instruction to the start of the exit block, after any PHI
@@ -496,7 +497,7 @@ void LICM::sink(Instruction &I) {
// The instruction is actually dead if there ARE NO exit blocks.
CurAST->deleteValue(&I);
if (!I.use_empty()) // If I has users in unreachable blocks, eliminate.
I.replaceAllUsesWith(UndefValue::get(I.getType()));
I.replaceAllUsesWith(Context->getUndef(I.getType()));
I.eraseFromParent();
} else {
// Otherwise, if we have multiple exits, use the PromoteMem2Reg function to