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Propagate TargetLibraryInfo throughout ConstantFolding.cpp and

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InstructionSimplify.cpp.  Other fixups as needed.
Part of rdar://10500969

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@145559 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chad Rosier
2011-12-01 03:08:23 +00:00
parent 66d004ef70
commit 618c1dbd29
17 changed files with 456 additions and 279 deletions
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7
lib/Transforms/Scalar/EarlyCSE.cpp
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@@ -19,6 +19,7 @@
#include "llvm/Analysis/Dominators.h"
#include "llvm/Analysis/InstructionSimplify.h"
#include "llvm/Target/TargetData.h"
#include "llvm/Target/TargetLibraryInfo.h"
#include "llvm/Transforms/Utils/Local.h"
#include "llvm/Support/Debug.h"
#include "llvm/Support/RecyclingAllocator.h"
@@ -215,6 +216,7 @@ namespace {
class EarlyCSE : public FunctionPass {
public:
const TargetData *TD;
const TargetLibraryInfo *TLI;
DominatorTree *DT;
typedef RecyclingAllocator<BumpPtrAllocator,
ScopedHashTableVal<SimpleValue, Value*> > AllocatorTy;
@@ -263,6 +265,7 @@ private:
// This transformation requires dominator postdominator info
virtual void getAnalysisUsage(AnalysisUsage &AU) const {
AU.addRequired<DominatorTree>();
AU.addRequired<TargetLibraryInfo>();
AU.setPreservesCFG();
}
};
@@ -277,6 +280,7 @@ FunctionPass *llvm::createEarlyCSEPass() {
INITIALIZE_PASS_BEGIN(EarlyCSE, "early-cse", "Early CSE", false, false)
INITIALIZE_PASS_DEPENDENCY(DominatorTree)
INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfo)
INITIALIZE_PASS_END(EarlyCSE, "early-cse", "Early CSE", false, false)
bool EarlyCSE::processNode(DomTreeNode *Node) {
@@ -328,7 +332,7 @@ bool EarlyCSE::processNode(DomTreeNode *Node) {
// If the instruction can be simplified (e.g. X+0 = X) then replace it with
// its simpler value.
if (Value *V = SimplifyInstruction(Inst, TD, DT)) {
if (Value *V = SimplifyInstruction(Inst, TD, TLI, DT)) {
DEBUG(dbgs() << "EarlyCSE Simplify: " << *Inst << " to: " << *V << '\n');
Inst->replaceAllUsesWith(V);
Inst->eraseFromParent();
@@ -455,6 +459,7 @@ bool EarlyCSE::processNode(DomTreeNode *Node) {
bool EarlyCSE::runOnFunction(Function &F) {
TD = getAnalysisIfAvailable<TargetData>();
TLI = &getAnalysis<TargetLibraryInfo>();
DT = &getAnalysis<DominatorTree>();
// Tables that the pass uses when walking the domtree.