[llvm] Remove no-op ptr-to-ptr casts (NFC)

Remove calls to CreatePointerCast which are just doing no-op ptr-to-ptr
bitcasts.

Opaque ptr cleanup effort (NFC).

1 files changed, 1 insertions, 9 deletions

diff --git a/llvm/lib/CodeGen/CodeGenPrepare.cpp b/llvm/lib/CodeGen/CodeGenPrepare.cpp
index e06b430..6e99fb1 100644
--- a/llvm/lib/CodeGen/CodeGenPrepare.cpp
+++ b/llvm/lib/CodeGen/CodeGenPrepare.cpp
@@ -6188,8 +6188,6 @@ bool CodeGenPrepare::splitLargeGEPOffsets() {
       // Generate a new GEP to replace the current one.
       LLVMContext &Ctx = GEP->getContext();
       Type *PtrIdxTy = DL->getIndexType(GEP->getType());
-      Type *I8PtrTy =
-          PointerType::get(Ctx, GEP->getType()->getPointerAddressSpace());
       Type *I8Ty = Type::getInt8Ty(Ctx);
 
       if (!NewBaseGEP) {
@@ -6200,16 +6198,10 @@ bool CodeGenPrepare::splitLargeGEPOffsets() {
 
       IRBuilder<> Builder(GEP);
       Value *NewGEP = NewBaseGEP;
-      if (Offset == BaseOffset) {
-        if (GEP->getType() != I8PtrTy)
-          NewGEP = Builder.CreatePointerCast(NewGEP, GEP->getType());
-      } else {
+      if (Offset != BaseOffset) {
         // Calculate the new offset for the new GEP.
         Value *Index = ConstantInt::get(PtrIdxTy, Offset - BaseOffset);
         NewGEP = Builder.CreateGEP(I8Ty, NewBaseGEP, Index);
-
-        if (GEP->getType() != I8PtrTy)
-          NewGEP = Builder.CreatePointerCast(NewGEP, GEP->getType());
       }
       replaceAllUsesWith(GEP, NewGEP, FreshBBs, IsHugeFunc);
       LargeOffsetGEPID.erase(GEP);