| Eli Friedman | d6e2560 | 2011-12-26 22:49:32 +0000 | [diff] [blame] | 1 | ; RUN: llc -march=x86-64 -mattr=-sse42,+sse41 < %s | FileCheck %s |
| 2 | ; Make sure we don't load from the location pointed to by %p |
| 3 | ; twice: it has non-obvious performance implications, and |
| 4 | ; the relevant transformation doesn't know how to update |
| 5 | ; the chains correctly. |
| 6 | ; PR10747 |
| 7 | |
| 8 | ; CHECK: test: |
| 9 | ; CHECK: pextrd $2, %xmm |
| 10 | define <4 x i32> @test(<4 x i32>* %p) { |
| 11 | %v = load <4 x i32>* %p |
| 12 | %e = extractelement <4 x i32> %v, i32 2 |
| 13 | %cmp = icmp eq i32 %e, 3 |
| 14 | %sel = select i1 %cmp, <4 x i32> %v, <4 x i32> zeroinitializer |
| 15 | ret <4 x i32> %sel |
| 16 | } |