Opaque Pointer Types: GEP API migrations to specify the gep type explicitly

The changes to InstCombine do seem a bit silly - it doesn't make
anything obviously better to have the caller access the pointers element
type (the thing I'm trying to remove) than the GEP itself, but it's a
helpful migration step. This will allow me to more obviously lock down
GEP (& Load, etc) API usage, then fix all the code that accesses pointer
element types except the places that need to be removed (most of the
InstCombines) anyway - at which point I'll need to just remove all that
code because it won't be meaningful anymore (there will be no pointer
types, so no bitcasts to combine)

llvm-svn: 233126

1 files changed, 2 insertions, 1 deletions

diff --git a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
index 573ee6cf336..8fc4cc1466a 100644
--- a/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
+++ b/llvm/lib/Transforms/Vectorize/SLPVectorizer.cpp
@@ -2365,7 +2365,8 @@ Value *BoUpSLP::vectorizeTree(TreeEntry *E) {
         OpVecs.push_back(OpVec);
       }
 
-      Value *V = Builder.CreateGEP(Op0, OpVecs);
+      Value *V = Builder.CreateGEP(
+          cast<GetElementPtrInst>(VL0)->getSourceElementType(), Op0, OpVecs);
       E->VectorizedValue = V;
       ++NumVectorInstructions;