[InstCombine][x86] Constant fold psll intrinsics.

[oota-llvm.git] / lib / Transforms / InstCombine / InstCombineCasts.cpp

diff --git a/lib/Transforms/InstCombine/InstCombineCasts.cpp b/lib/Transforms/InstCombine/InstCombineCasts.cpp
index 5c1d1b136b32bac902b3c3391048df79ee253344..3e50bcd42d3d666fdbde90ec449684cd962bb408 100644 (file)
--- a/lib/Transforms/InstCombine/InstCombineCasts.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCasts.cpp
@@ -14,11 +14,13 @@
 #include "InstCombine.h"
 #include "llvm/Analysis/ConstantFolding.h"
 #include "llvm/IR/DataLayout.h"
-#include "llvm/Support/PatternMatch.h"
+#include "llvm/IR/PatternMatch.h"
 #include "llvm/Target/TargetLibraryInfo.h"
 using namespace llvm;
 using namespace PatternMatch;
 
+#define DEBUG_TYPE "instcombine"
+
 /// DecomposeSimpleLinearExpr - Analyze 'Val', seeing if it is a simple linear
 /// expression.  If so, decompose it, returning some value X, such that Val is
 /// X*Scale+Offset.
@@ -235,7 +237,7 @@ isEliminableCastPair(
   const CastInst *CI, ///< The first cast instruction
   unsigned opcode,       ///< The opcode of the second cast instruction
   Type *DstTy,     ///< The target type for the second cast instruction
-  DataLayout *DL         ///< The target data for pointer size
+  const DataLayout *DL ///< The target data for pointer size
 ) {
 
   Type *SrcTy = CI->getOperand(0)->getType();   // A from above
@@ -757,7 +759,7 @@ static bool CanEvaluateZExtd(Value *V, Type *Ty, unsigned &BitsToClear) {
 Instruction *InstCombiner::visitZExt(ZExtInst &CI) {
   // If this zero extend is only used by a truncate, let the truncate be
   // eliminated before we try to optimize this zext.
-  if (CI.hasOneUse() && isa<TruncInst>(CI.use_back()))
+  if (CI.hasOneUse() && isa<TruncInst>(CI.user_back()))
     return 0;
 
   // If one of the common conversion will work, do it.
@@ -1038,7 +1040,7 @@ static bool CanEvaluateSExtd(Value *V, Type *Ty) {
 Instruction *InstCombiner::visitSExt(SExtInst &CI) {
   // If this sign extend is only used by a truncate, let the truncate be
   // eliminated before we try to optimize this sext.
-  if (CI.hasOneUse() && isa<TruncInst>(CI.use_back()))
+  if (CI.hasOneUse() && isa<TruncInst>(CI.user_back()))
     return 0;
 
   if (Instruction *I = commonCastTransforms(CI))