| Dan Gohman | 264d245 | 2009-09-14 23:39:10 +0000 | [diff] [blame] | 1 | ; RUN: opt < %s -S -memcpyopt | FileCheck %s |
| Kenneth Uildriks | b908f8a | 2009-11-03 15:29:06 +0000 | [diff] [blame] | 2 | target datalayout = "E-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:32:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64" |
| Dan Gohman | 264d245 | 2009-09-14 23:39:10 +0000 | [diff] [blame] | 3 | |
| 4 | ; The resulting memset is only 4-byte aligned, despite containing |
| Chris Lattner | f86c75d | 2011-01-10 02:33:34 +0000 | [diff] [blame] | 5 | ; a 16-byte aligned store in the middle. |
| Dan Gohman | 264d245 | 2009-09-14 23:39:10 +0000 | [diff] [blame] | 6 | |
| Chris Lattner | 61db1f5 | 2010-12-26 22:57:41 +0000 | [diff] [blame] | 7 | ; CHECK: call void @llvm.memset.p0i8.i64(i8* {{.*}}, i8 0, i64 16, i32 4, i1 false) |
| Dan Gohman | 264d245 | 2009-09-14 23:39:10 +0000 | [diff] [blame] | 8 | |
| 9 | define void @foo(i32* %p) { |
| 10 | %a0 = getelementptr i32* %p, i64 0 |
| 11 | store i32 0, i32* %a0, align 4 |
| 12 | %a1 = getelementptr i32* %p, i64 1 |
| 13 | store i32 0, i32* %a1, align 16 |
| 14 | %a2 = getelementptr i32* %p, i64 2 |
| 15 | store i32 0, i32* %a2, align 4 |
| 16 | %a3 = getelementptr i32* %p, i64 3 |
| 17 | store i32 0, i32* %a3, align 4 |
| 18 | ret void |
| 19 | } |