| Evan Cheng | 84387ea | 2012-03-13 22:00:52 +0000 | [diff] [blame^] | 1 | ; RUN: llc < %s -mtriple=thumbv7-apple-ios | FileCheck %s |
| 2 | ; rdar://11035895 |
| 3 | |
| 4 | ; DAG combine incorrectly optimize (i32 vextract (v4i16 load $addr), c) to |
| 5 | ; (i16 load $addr+c*sizeof(i16)). It should have issued an extload instead. i.e. |
| 6 | ; (i32 extload $addr+c*sizeof(i16) |
| 7 | define void @test_hi_short3(<3 x i16> * nocapture %srcA, <2 x i16> * nocapture %dst) nounwind { |
| 8 | entry: |
| 9 | ; CHECK: ldrh [[REG:r[0-9]+]] |
| 10 | ; CHECK: strh [[REG]] |
| 11 | %0 = load <3 x i16> * %srcA, align 8 |
| 12 | %1 = shufflevector <3 x i16> %0, <3 x i16> undef, <2 x i32> <i32 2, i32 undef> |
| 13 | store <2 x i16> %1, <2 x i16> * %dst, align 4 |
| 14 | ret void |
| 15 | } |
| 16 | |