1; RUN: opt -S -basicaa -gvn < %s | FileCheck %s
2; PR10872
3target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64"
4target triple = "x86_64-apple-macosx10.7"
5
6@z = internal global i32 0, align 4
7@y = internal global i32 0, align 4
8@x = internal constant i32 0, align 4
9
10; CHECK: @test
11define i32 @test() nounwind uwtable ssp {
12entry:
13  store i32 1, i32* @z
14  tail call void @memset_pattern16(i8* bitcast (i32* @y to i8*), i8* bitcast (i32* @x to i8*), i64 4) nounwind
15; CHECK-NOT: load
16  %l = load i32, i32* @z
17; CHECK: ret i32 1
18  ret i32 %l
19}
20
21declare void @memset_pattern16(i8*, i8* readonly, i64) argmemonly
22