From 14fe8cf238623b85f4115dcf9944eec3466af5a0 Mon Sep 17 00:00:00 2001
From: Dan Gohman <gohman@apple.com>
Date: Tue, 19 Oct 2010 17:06:23 +0000
Subject: Consistently use AliasAnalysis::UnknownSize instead of hardcoding
 ~0u.

llvm-svn: 116815
---
 llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp | 8 ++++----
 llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp      | 2 +-
 2 files changed, 5 insertions(+), 5 deletions(-)

(limited to 'llvm/lib/Transforms')

diff --git a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
index a1a9f812043..fdace9f3a04 100644
--- a/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
+++ b/llvm/lib/Transforms/Scalar/DeadStoreElimination.cpp
@@ -59,7 +59,7 @@ namespace {
     bool handleFreeWithNonTrivialDependency(const CallInst *F,
                                             MemDepResult Dep);
     bool handleEndBlock(BasicBlock &BB);
-    bool RemoveUndeadPointers(Value *Ptr, uint64_t killPointerSize,
+    bool RemoveUndeadPointers(Value *Ptr, unsigned killPointerSize,
                               BasicBlock::iterator &BBI,
                               SmallPtrSet<Value*, 64> &deadPointers);
     void DeleteDeadInstruction(Instruction *I,
@@ -371,7 +371,7 @@ bool DSE::handleEndBlock(BasicBlock &BB) {
     }
     
     Value *killPointer = 0;
-    uint64_t killPointerSize = ~0UL;
+    unsigned killPointerSize = AliasAnalysis::UnknownSize;
     
     // If we encounter a use of the pointer, it is no longer considered dead
     if (LoadInst *L = dyn_cast<LoadInst>(BBI)) {
@@ -470,7 +470,7 @@ bool DSE::handleEndBlock(BasicBlock &BB) {
 
 /// RemoveUndeadPointers - check for uses of a pointer that make it
 /// undead when scanning for dead stores to alloca's.
-bool DSE::RemoveUndeadPointers(Value *killPointer, uint64_t killPointerSize,
+bool DSE::RemoveUndeadPointers(Value *killPointer, unsigned killPointerSize,
                                BasicBlock::iterator &BBI,
                                SmallPtrSet<Value*, 64> &deadPointers) {
   AliasAnalysis &AA = getAnalysis<AliasAnalysis>();
@@ -575,5 +575,5 @@ unsigned DSE::getPointerSize(Value *V) const {
       return TD->getTypeAllocSize(PT->getElementType());
     }
   }
-  return ~0U;
+  return AliasAnalysis::UnknownSize;
 }
diff --git a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
index e4f329fdad7..e867991db32 100644
--- a/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
+++ b/llvm/lib/Transforms/Scalar/MemCpyOptimizer.cpp
@@ -770,7 +770,7 @@ bool MemCpyOpt::processMemMove(MemMoveInst *M) {
 
   // If the memmove is a constant size, use it for the alias query, this allows
   // us to optimize things like: memmove(P, P+64, 64);
-  uint64_t MemMoveSize = ~0ULL;
+  unsigned MemMoveSize = AliasAnalysis::UnknownSize;
   if (ConstantInt *Len = dyn_cast<ConstantInt>(M->getLength()))
     MemMoveSize = Len->getZExtValue();
   
-- 
cgit v1.2.3