[llvm-commits] CVS: llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp

[Chris Lattner]

Changes in directory llvm/lib/Transforms/Scalar:

LoopStrengthReduce.cpp updated: 1.53 -> 1.54
---
Log message:

Fix Transforms/LoopStrengthReduce/2005-08-17-OutOfLoopVariant.ll, a crash
on 177.mesa


---
Diffs of the changes:  (+4 -1)

 LoopStrengthReduce.cpp |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletion(-)


Index: llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp
diff -u llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:1.53 llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:1.54
--- llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp:1.53	Wed Aug 17 01:35:16 2005
+++ llvm/lib/Transforms/Scalar/LoopStrengthReduce.cpp	Wed Aug 17 16:22:41 2005
@@ -744,7 +744,10 @@
     // value of the IV.  Do not put anything in the base, make sure it's all in
     // the immediate field to allow as much factoring as possible.
     if (!L->contains(UsersToProcess[i].Inst->getParent())) {
-      std::swap(UsersToProcess[i].Base, UsersToProcess[i].Imm);
+      UsersToProcess[i].Imm = SCEVAddExpr::get(UsersToProcess[i].Imm,
+                                               UsersToProcess[i].Base);
+      UsersToProcess[i].Base = 
+        SCEVUnknown::getIntegerSCEV(0, UsersToProcess[i].Base->getType());
     } else {
       
       // Addressing modes can be folded into loads and stores.  Be careful that