| Dan Gohman | a5e0481 | 2009-09-14 23:39:10 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -S -memcpyopt | FileCheck %s |
| 2 | |
| 3 | ; The resulting memset is only 4-byte aligned, despite containing |
| 4 | ; a 16-byte alignmed store in the middle. |
| 5 | |
| 6 | ; CHECK: call void @llvm.memset.i64(i8* %a01, i8 0, i64 16, i32 4) |
| 7 | |
| 8 | define void @foo(i32* %p) { |
| 9 | %a0 = getelementptr i32* %p, i64 0 |
| 10 | store i32 0, i32* %a0, align 4 |
| 11 | %a1 = getelementptr i32* %p, i64 1 |
| 12 | store i32 0, i32* %a1, align 16 |
| 13 | %a2 = getelementptr i32* %p, i64 2 |
| 14 | store i32 0, i32* %a2, align 4 |
| 15 | %a3 = getelementptr i32* %p, i64 3 |
| 16 | store i32 0, i32* %a3, align 4 |
| 17 | ret void |
| 18 | } |