Test case for r122215 when InstCombine optimizes memset

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@122216 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/Transforms/InstCombine/memset2.ll b/test/Transforms/InstCombine/memset2.ll
new file mode 100644 (file)
index 0000000..87639f0
--- /dev/null
+++ b/test/Transforms/InstCombine/memset2.ll
@@ -0,0 +1,15 @@
+; RUN: opt < %s -instcombine -S | FileCheck %s
+
+; Test to check that instcombine doesn't drop the address space when optimizing
+; memset.
+%struct.Moves = type { [9 x i8], i8, i8, i8, [5 x i8] }
+
+define i32 @test(%struct.Moves addrspace(1)* nocapture %moves) {
+entry:
+; CHECK: bitcast i8 addrspace(1)* %gep to i64 addrspace(1)*
+       %gep = getelementptr inbounds %struct.Moves addrspace(1)* %moves, i32 1, i32 0, i32 9
+        call void @llvm.memset.p1i8.i64(i8 addrspace(1)* %gep, i8 0, i64 8, i32 1, i1 false)                                                                     
+       ret i32 0
+}
+
+declare void @llvm.memset.p1i8.i64(i8addrspace(1)* nocapture, i8, i64, i32, i1) nounwind