From 035f02cb2347eab22318f1bfce465edeaab20459 Mon Sep 17 00:00:00 2001
From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Mon, 15 Sep 2014 15:41:44 +0000
Subject: [PATCH] R600/SI: Fix promote alloca pass breaking addrspacecast

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@217776 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/R600/AMDGPUPromoteAlloca.cpp | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/lib/Target/R600/AMDGPUPromoteAlloca.cpp b/lib/Target/R600/AMDGPUPromoteAlloca.cpp
index 620925a62b1..4a6c10455df 100644
--- a/lib/Target/R600/AMDGPUPromoteAlloca.cpp
+++ b/lib/Target/R600/AMDGPUPromoteAlloca.cpp
@@ -329,6 +329,13 @@ void AMDGPUPromoteAlloca::visitAlloca(AllocaInst &I) {
     if (!Call) {
       Type *EltTy = V->getType()->getPointerElementType();
       PointerType *NewTy = PointerType::get(EltTy, AMDGPUAS::LOCAL_ADDRESS);
+
+      // The operand's value should be corrected on its own.
+      if (isa<AddrSpaceCastInst>(V))
+        continue;
+
+      // FIXME: It doesn't really make sense to try to do this for all
+      // instructions.
       V->mutateType(NewTy);
       continue;
     }
-- 
2.34.1