6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-13 20:32:21 +00:00
Code Issues Projects Releases Wiki Activity

Make TargetData optional in MemoryDependenceAnalysis.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@77727 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-07-31 20:53:12 +00:00
parent 26630c1180
commit f581213bfb
1 changed files with 7 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
lib/Analysis/MemoryDependenceAnalysis.cpp
View File

@ -24,7 +24,6 @@
#include "llvm/ADT/STLExtras.h"
#include "llvm/Support/PredIteratorCache.h"
#include "llvm/Support/Debug.h"
#include "llvm/Target/TargetData.h"
using namespace llvm;
STATISTIC(NumCacheNonLocal, "Number of fully cached non-local responses");
@ -70,12 +69,10 @@ void MemoryDependenceAnalysis::releaseMemory() {
void MemoryDependenceAnalysis::getAnalysisUsage(AnalysisUsage &AU) const {
AU.setPreservesAll();
AU.addRequiredTransitive<AliasAnalysis>();
AU.addRequiredTransitive<TargetData>();
}
bool MemoryDependenceAnalysis::runOnFunction(Function &) {
AA = &getAnalysis<AliasAnalysis>();
TD = &getAnalysis<TargetData>();
if (PredCache == 0)
PredCache.reset(new PredIteratorCache());
return false;
@ -111,10 +108,10 @@ getCallSiteDependencyFrom(CallSite CS, bool isReadOnlyCall,
uint64_t PointerSize = 0;
if (StoreInst *S = dyn_cast<StoreInst>(Inst)) {
Pointer = S->getPointerOperand();
PointerSize = TD->getTypeStoreSize(S->getOperand(0)->getType());
PointerSize = AA->getTypeStoreSize(S->getOperand(0)->getType());
} else if (VAArgInst *V = dyn_cast<VAArgInst>(Inst)) {
Pointer = V->getOperand(0);
PointerSize = TD->getTypeStoreSize(V->getType());
PointerSize = AA->getTypeStoreSize(V->getType());
} else if (FreeInst *F = dyn_cast<FreeInst>(Inst)) {
Pointer = F->getPointerOperand();
@ -184,7 +181,7 @@ getPointerDependencyFrom(Value *MemPtr, uint64_t MemSize, bool isLoad,
// a load depends on another must aliased load from the same value.
if (LoadInst *LI = dyn_cast<LoadInst>(Inst)) {
Value *Pointer = LI->getPointerOperand();
uint64_t PointerSize = TD->getTypeStoreSize(LI->getType());
uint64_t PointerSize = AA->getTypeStoreSize(LI->getType());
// If we found a pointer, check if it could be the same as our pointer.
AliasAnalysis::AliasResult R =
@ -210,7 +207,7 @@ getPointerDependencyFrom(Value *MemPtr, uint64_t MemSize, bool isLoad,
// Ok, this store might clobber the query pointer. Check to see if it is
// a must alias: in this case, we want to return this as a def.
Value *Pointer = SI->getPointerOperand();
uint64_t PointerSize = TD->getTypeStoreSize(SI->getOperand(0)->getType());
uint64_t PointerSize = AA->getTypeStoreSize(SI->getOperand(0)->getType());
// If we found a pointer, check if it could be the same as our pointer.
AliasAnalysis::AliasResult R =
@ -301,7 +298,7 @@ MemDepResult MemoryDependenceAnalysis::getDependency(Instruction *QueryInst) {
LocalCache = MemDepResult::getClobber(--BasicBlock::iterator(ScanPos));
else {
MemPtr = SI->getPointerOperand();
MemSize = TD->getTypeStoreSize(SI->getOperand(0)->getType());
MemSize = AA->getTypeStoreSize(SI->getOperand(0)->getType());
}
} else if (LoadInst *LI = dyn_cast<LoadInst>(QueryInst)) {
// If this is a volatile load, don't mess around with it. Just return the
@ -310,7 +307,7 @@ MemDepResult MemoryDependenceAnalysis::getDependency(Instruction *QueryInst) {
LocalCache = MemDepResult::getClobber(--BasicBlock::iterator(ScanPos));
else {
MemPtr = LI->getPointerOperand();
MemSize = TD->getTypeStoreSize(LI->getType());
MemSize = AA->getTypeStoreSize(LI->getType());
}
} else if (isa<CallInst>(QueryInst) || isa<InvokeInst>(QueryInst)) {
CallSite QueryCS = CallSite::get(QueryInst);
@ -512,7 +509,7 @@ getNonLocalPointerDependency(Value *Pointer, bool isLoad, BasicBlock *FromBB,
// We know that the pointer value is live into FromBB find the def/clobbers
// from presecessors.
const Type *EltTy = cast<PointerType>(Pointer->getType())->getElementType();
uint64_t PointeeSize = TD->getTypeStoreSize(EltTy);
uint64_t PointeeSize = AA->getTypeStoreSize(EltTy);
// This is the set of blocks we've inspected, and the pointer we consider in
// each block. Because of critical edges, we currently bail out if querying