1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
|
; RUN: llvm-as < %s | opt -memcpyopt | llvm-dis | FileCheck %s
; The resulting memset is only 4-byte aligned, despite containing
; a 16-byte alignmed store in the middle.
; CHECK: call void @llvm.memset.i64(i8* %a01, i8 0, i64 16, i32 4)
define void @foo(i32* %p) {
%a0 = getelementptr i32* %p, i64 0
store i32 0, i32* %a0, align 4
%a1 = getelementptr i32* %p, i64 1
store i32 0, i32* %a1, align 16
%a2 = getelementptr i32* %p, i64 2
store i32 0, i32* %a2, align 4
%a3 = getelementptr i32* %p, i64 3
store i32 0, i32* %a3, align 4
ret void
}
|
