From: Matt Arsenault <Matthew.Arsenault@amd.com>
Date: Tue, 14 Jan 2014 20:00:45 +0000 (+0000)
Subject: Do pointer cast simplifications on addrspacecast
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=0445dc203b0e4001a153d9af4bd75f5242401d06;p=oota-llvm.git

Do pointer cast simplifications on addrspacecast

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@199254 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Transforms/InstCombine/InstCombineCasts.cpp b/lib/Transforms/InstCombine/InstCombineCasts.cpp
index 2e7ec11391f..71990a27ac0 100644
--- a/lib/Transforms/InstCombine/InstCombineCasts.cpp
+++ b/lib/Transforms/InstCombine/InstCombineCasts.cpp
@@ -1909,5 +1909,5 @@ Instruction *InstCombiner::visitBitCast(BitCastInst &CI) {
 }
 
 Instruction *InstCombiner::visitAddrSpaceCast(AddrSpaceCastInst &CI) {
-  return commonCastTransforms(CI);
+  return commonPointerCastTransforms(CI);
 }
diff --git a/test/Transforms/InstCombine/getelementptr.ll b/test/Transforms/InstCombine/getelementptr.ll
index c29a7dccb8e..394cfa74c78 100644
--- a/test/Transforms/InstCombine/getelementptr.ll
+++ b/test/Transforms/InstCombine/getelementptr.ll
@@ -789,4 +789,13 @@ define i16 @test41([3 x i32] addrspace(1)* %array) {
 ; CHECK-NEXT: ret i16 8
 }
 
+define i32 addrspace(1)* @ascast_0_gep([128 x i32]* %p) nounwind {
+; CHECK-LABEL: @ascast_0_gep(
+; CHECK-NOT: getelementptr
+; CHECK: ret
+  %gep = getelementptr [128 x i32]* %p, i32 0, i32 0
+  %x = addrspacecast i32* %gep to i32 addrspace(1)*
+  ret i32 addrspace(1)* %x
+}
+
 ; CHECK: attributes [[NUW]] = { nounwind }