commit 3b9a911efcf280950f878a050728450423875639
author Bob Wilson <bob.wilson@apple.com> Thu Oct 18 05:43:52 2012 +0000
committer Bob Wilson <bob.wilson@apple.com> Thu Oct 18 05:43:52 2012 +0000
tree 485f605df1211e84d3cf352d1e90ed96e2566891
parent d22d5f9122de2c8527f1d8890ce2802a89e0db0c

Temporarily revert the TargetTransform changes.

The TargetTransform changes are breaking LTO bootstraps of clang.  I am
working with Nadav to figure out the problem, but I am reverting it for now
to get our buildbots working.

This reverts svn commits: 165665 165669 165670 165786 165787 165997
and I have also reverted clang svn 165741

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@166168 91177308-0d34-0410-b5e6-96231b3b80d8

lib/Analysis/ScalarEvolutionExpander.cpp

diff --git a/lib/Analysis/ScalarEvolutionExpander.cpp b/lib/Analysis/ScalarEvolutionExpander.cpp
index 5c2a49e..5e05f4c 100644
--- a/lib/Analysis/ScalarEvolutionExpander.cpp
+++ b/lib/Analysis/ScalarEvolutionExpander.cpp
@@ -19,8 +19,8 @@
 #include "llvm/LLVMContext.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/DataLayout.h"
+#include "llvm/Target/TargetLowering.h"
 #include "llvm/ADT/STLExtras.h"
-#include "llvm/TargetTransformInfo.h"
 
 using namespace llvm;
 
@@ -1599,15 +1599,15 @@
 /// This does not depend on any SCEVExpander state but should be used in
 /// the same context that SCEVExpander is used.
 unsigned SCEVExpander::replaceCongruentIVs(Loop *L, const DominatorTree *DT,
-                                          SmallVectorImpl<WeakVH> &DeadInsts,
-                                          const ScalarTargetTransformInfo *STTI) {
+                                           SmallVectorImpl<WeakVH> &DeadInsts,
+                                           const TargetLowering *TLI) {
   // Find integer phis in order of increasing width.
   SmallVector<PHINode*, 8> Phis;
   for (BasicBlock::iterator I = L->getHeader()->begin();
        PHINode *Phi = dyn_cast<PHINode>(I); ++I) {
     Phis.push_back(Phi);
   }
-  if (STTI)
+  if (TLI)
     std::sort(Phis.begin(), Phis.end(), width_descending);
 
   unsigned NumElim = 0;
@@ -1624,8 +1624,8 @@
     PHINode *&OrigPhiRef = ExprToIVMap[SE.getSCEV(Phi)];
     if (!OrigPhiRef) {
       OrigPhiRef = Phi;
-      if (Phi->getType()->isIntegerTy() && STTI &&
-          STTI->isTruncateFree(Phi->getType(), Phis.back()->getType())) {
+      if (Phi->getType()->isIntegerTy() && TLI
+          && TLI->isTruncateFree(Phi->getType(), Phis.back()->getType())) {
         // This phi can be freely truncated to the narrowest phi type. Map the
         // truncated expression to it so it will be reused for narrow types.
         const SCEV *TruncExpr =