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Remove FreeInst.

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Remove LowerAllocations pass.
Update some more passes to treate free calls just like they were treating FreeInst.



git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@85176 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Victor Hernandez
2009-10-26 23:43:48 +00:00
parent dda9583e51
commit 046e78ce55
40 changed files with 131 additions and 401 deletions
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lib/Analysis/AliasSetTracker.cpp
+16 -17
View File
@@ -13,6 +13,7 @@
#include "llvm/Analysis/AliasSetTracker.h"
#include "llvm/Analysis/AliasAnalysis.h"
#include "llvm/Analysis/MallocHelper.h"
#include "llvm/Instructions.h"
#include "llvm/IntrinsicInst.h"
#include "llvm/Pass.h"
@@ -296,12 +297,6 @@ bool AliasSetTracker::add(StoreInst *SI) {
return NewPtr;
}
bool AliasSetTracker::add(FreeInst *FI) {
bool NewPtr;
addPointer(FI->getOperand(0), ~0, AliasSet::Mods, NewPtr);
return NewPtr;
}
bool AliasSetTracker::add(VAArgInst *VAAI) {
bool NewPtr;
addPointer(VAAI->getOperand(0), ~0, AliasSet::ModRef, NewPtr);
@@ -310,6 +305,13 @@ bool AliasSetTracker::add(VAArgInst *VAAI) {
bool AliasSetTracker::add(CallSite CS) {
Instruction* Inst = CS.getInstruction();
if (isFreeCall(Inst)) {
bool NewPtr;
addPointer(Inst->getOperand(1), ~0, AliasSet::Mods, NewPtr);
return NewPtr;
}
if (isa<DbgInfoIntrinsic>(CS.getInstruction()))
return true; // Ignore DbgInfo Intrinsics.
if (AA.doesNotAccessMemory(CS))
@@ -337,8 +339,6 @@ bool AliasSetTracker::add(Instruction *I) {
return add(CI);
else if (InvokeInst *II = dyn_cast<InvokeInst>(I))
return add(II);
else if (FreeInst *FI = dyn_cast<FreeInst>(I))
return add(FI);
else if (VAArgInst *VAAI = dyn_cast<VAArgInst>(I))
return add(VAAI);
return true;
@@ -427,13 +427,6 @@ bool AliasSetTracker::remove(StoreInst *SI) {
return true;
}
bool AliasSetTracker::remove(FreeInst *FI) {
AliasSet *AS = findAliasSetForPointer(FI->getOperand(0), ~0);
if (!AS) return false;
remove(*AS);
return true;
}
bool AliasSetTracker::remove(VAArgInst *VAAI) {
AliasSet *AS = findAliasSetForPointer(VAAI->getOperand(0), ~0);
if (!AS) return false;
@@ -442,6 +435,14 @@ bool AliasSetTracker::remove(VAArgInst *VAAI) {
}
bool AliasSetTracker::remove(CallSite CS) {
Instruction* Inst = CS.getInstruction();
if (isFreeCall(Inst)) {
AliasSet *AS = findAliasSetForPointer(Inst->getOperand(1), ~0);
if (!AS) return false;
remove(*AS);
return true;
}
if (AA.doesNotAccessMemory(CS))
return false; // doesn't alias anything
@@ -459,8 +460,6 @@ bool AliasSetTracker::remove(Instruction *I) {
return remove(SI);
else if (CallInst *CI = dyn_cast<CallInst>(I))
return remove(CI);
else if (FreeInst *FI = dyn_cast<FreeInst>(I))
return remove(FI);
else if (VAArgInst *VAAI = dyn_cast<VAArgInst>(I))
return remove(VAAI);
return true;