From 6d8eb156e6be727570b300bac7712f745a318c7d Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Thu, 11 Nov 2010 21:50:19 +0000
Subject: Add helper functions for computing the Location of load, store, and
 vaarg instructions.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118845 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Transforms/IPO/ArgumentPromotion.cpp |  5 +----
 lib/Transforms/IPO/FunctionAttrs.cpp     | 13 +++----------
 lib/Transforms/Scalar/GVN.cpp            |  7 ++-----
 lib/Transforms/Scalar/Sink.cpp           |  6 +-----
 4 files changed, 7 insertions(+), 24 deletions(-)

(limited to 'lib/Transforms')

diff --git a/lib/Transforms/IPO/ArgumentPromotion.cpp b/lib/Transforms/IPO/ArgumentPromotion.cpp
index fe30381..17ef703 100644
--- a/lib/Transforms/IPO/ArgumentPromotion.cpp
+++ b/lib/Transforms/IPO/ArgumentPromotion.cpp
@@ -433,10 +433,7 @@ bool ArgPromotion::isSafeToPromoteArgument(Argument *Arg, bool isByVal) const {
     LoadInst *Load = Loads[i];
     BasicBlock *BB = Load->getParent();
 
-    AliasAnalysis::Location Loc(Load->getPointerOperand(),
-                                AA.getTypeStoreSize(Load->getType()),
-                                Load->getMetadata(LLVMContext::MD_tbaa));
-
+    AliasAnalysis::Location Loc = AA.getLocation(Load);
     if (AA.canInstructionRangeModify(BB->front(), *Load, Loc))
       return false;  // Pointer is invalidated!
 
diff --git a/lib/Transforms/IPO/FunctionAttrs.cpp b/lib/Transforms/IPO/FunctionAttrs.cpp
index bb3ee46..95decec 100644
--- a/lib/Transforms/IPO/FunctionAttrs.cpp
+++ b/lib/Transforms/IPO/FunctionAttrs.cpp
@@ -165,27 +165,20 @@ bool FunctionAttrs::AddReadAttrs(const CallGraphSCC &SCC) {
       } else if (LoadInst *LI = dyn_cast<LoadInst>(I)) {
         // Ignore non-volatile loads from local memory.
         if (!LI->isVolatile()) {
-          AliasAnalysis::Location Loc(LI->getPointerOperand(),
-                                        AA->getTypeStoreSize(LI->getType()),
-                                        LI->getMetadata(LLVMContext::MD_tbaa));
+          AliasAnalysis::Location Loc = AA->getLocation(LI);
           if (AA->pointsToConstantMemory(Loc, /*OrLocal=*/true))
             continue;
         }
       } else if (StoreInst *SI = dyn_cast<StoreInst>(I)) {
         // Ignore non-volatile stores to local memory.
         if (!SI->isVolatile()) {
-          const Type *StoredType = SI->getValueOperand()->getType();
-          AliasAnalysis::Location Loc(SI->getPointerOperand(),
-                                      AA->getTypeStoreSize(StoredType),
-                                      SI->getMetadata(LLVMContext::MD_tbaa));
+          AliasAnalysis::Location Loc = AA->getLocation(SI);
           if (AA->pointsToConstantMemory(Loc, /*OrLocal=*/true))
             continue;
         }
       } else if (VAArgInst *VI = dyn_cast<VAArgInst>(I)) {
         // Ignore vaargs on local memory.
-        AliasAnalysis::Location Loc(VI->getPointerOperand(),
-                                    AliasAnalysis::UnknownSize,
-                                    VI->getMetadata(LLVMContext::MD_tbaa));
+        AliasAnalysis::Location Loc = AA->getLocation(VI);
         if (AA->pointsToConstantMemory(Loc, /*OrLocal=*/true))
           continue;
       }
diff --git a/lib/Transforms/Scalar/GVN.cpp b/lib/Transforms/Scalar/GVN.cpp
index e506d0e..52791dd 100644
--- a/lib/Transforms/Scalar/GVN.cpp
+++ b/lib/Transforms/Scalar/GVN.cpp
@@ -1351,11 +1351,8 @@ bool GVN::processNonLocalLoad(LoadInst *LI,
                               SmallVectorImpl<Instruction*> &toErase) {
   // Find the non-local dependencies of the load.
   SmallVector<NonLocalDepResult, 64> Deps;
-  AliasAnalysis::Location Loc(LI->getPointerOperand(),
-                         VN.getAliasAnalysis()->getTypeStoreSize(LI->getType()),
-                              LI->getMetadata(LLVMContext::MD_tbaa));
-  MD->getNonLocalPointerDependency(Loc, true, LI->getParent(),
-                                   Deps);
+  AliasAnalysis::Location Loc = VN.getAliasAnalysis()->getLocation(LI);
+  MD->getNonLocalPointerDependency(Loc, true, LI->getParent(), Deps);
   //DEBUG(dbgs() << "INVESTIGATING NONLOCAL LOAD: "
   //             << Deps.size() << *LI << '\n');
 
diff --git a/lib/Transforms/Scalar/Sink.cpp b/lib/Transforms/Scalar/Sink.cpp
index a54ba8e..705f442 100644
--- a/lib/Transforms/Scalar/Sink.cpp
+++ b/lib/Transforms/Scalar/Sink.cpp
@@ -15,7 +15,6 @@
 #define DEBUG_TYPE "sink"
 #include "llvm/Transforms/Scalar.h"
 #include "llvm/IntrinsicInst.h"
-#include "llvm/LLVMContext.h"
 #include "llvm/Analysis/Dominators.h"
 #include "llvm/Analysis/LoopInfo.h"
 #include "llvm/Analysis/AliasAnalysis.h"
@@ -157,10 +156,7 @@ static bool isSafeToMove(Instruction *Inst, AliasAnalysis *AA,
   if (LoadInst *L = dyn_cast<LoadInst>(Inst)) {
     if (L->isVolatile()) return false;
 
-    Value *Ptr = L->getPointerOperand();
-    uint64_t Size = AA->getTypeStoreSize(L->getType());
-    const MDNode *TBAAInfo = L->getMetadata(LLVMContext::MD_tbaa);
-    AliasAnalysis::Location Loc(Ptr, Size, TBAAInfo);
+    AliasAnalysis::Location Loc = AA->getLocation(L);
     for (SmallPtrSet<Instruction *, 8>::iterator I = Stores.begin(),
          E = Stores.end(); I != E; ++I)
       if (AA->getModRefInfo(*I, Loc) & AliasAnalysis::Mod)
-- 
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