2013-05-13-DAGCombiner-undef-mask.ll
903 Bytes
; NOTE: Assertions have been autogenerated by utils/update_llc_test_checks.py
; RUN: llc -mtriple=armv7-none-linux-gnueabi < %s | FileCheck %s
define <3 x i64> @shuffle(i1 %dec1, i1 %dec0, <3 x i64> %b) {
; CHECK-LABEL: shuffle:
; CHECK: @ %bb.0: @ %entry
; CHECK-NEXT: tst r1, #1
; CHECK-NEXT: moveq r1, #0
; CHECK-NEXT: vmoveq d16, r1, r1
; CHECK-NEXT: vldrne d16, [sp]
; CHECK-NEXT: tst r2, #1
; CHECK-NEXT: moveq r1, #0
; CHECK-NEXT: vmoveq d18, r1, r1
; CHECK-NEXT: vldrne d18, [sp, #8]
; CHECK-NEXT: vorr d17, d18, d18
; CHECK-NEXT: vst1.64 {d16, d17}, [r0:128]
; CHECK-NEXT: bx lr
entry:
%.sink = select i1 %dec1, <3 x i64> %b, <3 x i64> zeroinitializer
%.sink15 = select i1 %dec0, <3 x i64> %b, <3 x i64> zeroinitializer
%vecinit7 = shufflevector <3 x i64> %.sink, <3 x i64> %.sink15, <3 x i32> <i32 0, i32 4, i32 undef>
ret <3 x i64> %vecinit7
}