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Finegrainify namespacification

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Add capability to represent volatile AliasSet's
Propagate this information from loads&stores into the aliassets


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@10457 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Chris Lattner
2003-12-14 04:52:11 +00:00
parent bb8f4769a2
commit e26092456a
1 changed files with 12 additions and 9 deletions
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11
lib/Analysis/AliasSetTracker.cpp
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@@ -20,8 +20,7 @@
#include "llvm/Target/TargetData.h" #include "llvm/Target/TargetData.h"
#include "llvm/Assembly/Writer.h" #include "llvm/Assembly/Writer.h"
#include "llvm/Support/InstIterator.h" #include "llvm/Support/InstIterator.h"
using namespace llvm;
namespace llvm {
/// mergeSetIn - Merge the specified alias set into this alias set... /// mergeSetIn - Merge the specified alias set into this alias set...
/// ///
@@ -190,16 +189,21 @@ AliasSet &AliasSetTracker::getAliasSetForPointer(Value *Pointer, unsigned Size){
} }
void AliasSetTracker::add(LoadInst *LI) { void AliasSetTracker::add(LoadInst *LI) {
AliasSet &AS =
addPointer(LI->getOperand(0), addPointer(LI->getOperand(0),
AA.getTargetData().getTypeSize(LI->getType()), AliasSet::Refs); AA.getTargetData().getTypeSize(LI->getType()), AliasSet::Refs);
if (LI->isVolatile()) AS.setVolatile();
} }
void AliasSetTracker::add(StoreInst *SI) { void AliasSetTracker::add(StoreInst *SI) {
AliasSet &AS =
addPointer(SI->getOperand(1), addPointer(SI->getOperand(1),
AA.getTargetData().getTypeSize(SI->getOperand(0)->getType()), AA.getTargetData().getTypeSize(SI->getOperand(0)->getType()),
AliasSet::Mods); AliasSet::Mods);
if (SI->isVolatile()) AS.setVolatile();
} }
void AliasSetTracker::add(CallSite CS) { void AliasSetTracker::add(CallSite CS) {
AliasSet *AS = findAliasSetForCallSite(CS); AliasSet *AS = findAliasSetForCallSite(CS);
if (!AS) { if (!AS) {
@@ -263,6 +267,7 @@ void AliasSet::print(std::ostream &OS) const {
case ModRef : OS << "Mod/Ref "; break; case ModRef : OS << "Mod/Ref "; break;
default: assert(0 && "Bad value for AccessTy!"); default: assert(0 && "Bad value for AccessTy!");
} }
if (isVolatile()) OS << "[volatile] ";
if (Forward) if (Forward)
OS << " forwarding to " << (void*)Forward; OS << " forwarding to " << (void*)Forward;
@@ -329,5 +334,3 @@ namespace {
RegisterPass<AliasSetPrinter> X("print-alias-sets", "Alias Set Printer", RegisterPass<AliasSetPrinter> X("print-alias-sets", "Alias Set Printer",
PassInfo::Analysis | PassInfo::Optimization); PassInfo::Analysis | PassInfo::Optimization);
} }
} // End llvm namespace