blob: 6fb760c4bcc7ef2329f3458a6efe1a541dda2a38 [file] [log] [blame]
Evan Cheng7bf83092012-03-13 22:00:52 +00001; 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)
7define void @test_hi_short3(<3 x i16> * nocapture %srcA, <2 x i16> * nocapture %dst) nounwind {
8entry:
Chad Rosiere0e38f62012-04-09 20:32:02 +00009; CHECK: vst1.32
David Blaikiea79ac142015-02-27 21:17:42 +000010 %0 = load <3 x i16> , <3 x i16> * %srcA, align 8
Evan Cheng7bf83092012-03-13 22:00:52 +000011 %1 = shufflevector <3 x i16> %0, <3 x i16> undef, <2 x i32> <i32 2, i32 undef>
12 store <2 x i16> %1, <2 x i16> * %dst, align 4
13 ret void
14}
15