Make the variant of __builtin_shufflevector that takes the shuffle indexes as a vector actually usable. Patch by David Neto. PR12465.

llvm-svn: 154128

1 files changed, 3 insertions, 3 deletions

diff --git a/clang/lib/CodeGen/CGExprScalar.cpp b/clang/lib/CodeGen/CGExprScalar.cpp
index e9de43dd66b..5723541c62d 100644
--- a/clang/lib/CodeGen/CGExprScalar.cpp
+++ b/clang/lib/CodeGen/CGExprScalar.cpp
@@ -754,8 +754,8 @@ Value *ScalarExprEmitter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
                                                         MTy->getNumElements());
     Value* NewV = llvm::UndefValue::get(RTy);
     for (unsigned i = 0, e = MTy->getNumElements(); i != e; ++i) {
-      Value *Indx = Builder.getInt32(i);
-      Indx = Builder.CreateExtractElement(Mask, Indx, "shuf_idx");
+      Value *IIndx = Builder.getInt32(i);
+      Value *Indx = Builder.CreateExtractElement(Mask, IIndx, "shuf_idx");
       Indx = Builder.CreateZExt(Indx, CGF.Int32Ty, "idx_zext");
       
       // Handle vec3 special since the index will be off by one for the RHS.
@@ -767,7 +767,7 @@ Value *ScalarExprEmitter::VisitShuffleVectorExpr(ShuffleVectorExpr *E) {
         Indx = Builder.CreateSelect(cmpIndx, newIndx, Indx, "sel_shuf_idx");
       }
       Value *VExt = Builder.CreateExtractElement(LHS, Indx, "shuf_elt");
-      NewV = Builder.CreateInsertElement(NewV, VExt, Indx, "shuf_ins");
+      NewV = Builder.CreateInsertElement(NewV, VExt, IIndx, "shuf_ins");
     }
     return NewV;
   }