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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64 -mattr=+sve -mattr=+use-experimental-zeroing-pseudos -run-pass=aarch64-expand-pseudo %s -o - | FileCheck %s
# Should create an additional LSL to zero the lanes as the DstReg is not unique
--- |
define <vscale x 4 x float> @fmul_float_zero(<vscale x 4 x i1> %pg, <vscale x 4 x float> %a){
%a_z = select <vscale x 4 x i1> %pg, <vscale x 4 x float> %a, <vscale x 4 x float> zeroinitializer
%out = call <vscale x 4 x float> @llvm.aarch64.sve.fmul.nxv4f32(<vscale x 4 x i1> %pg, <vscale x 4 x float> %a_z, <vscale x 4 x float> %a_z)
ret <vscale x 4 x float> %out
}
declare <vscale x 4 x float> @llvm.aarch64.sve.fmul.nxv4f32(<vscale x 4 x i1>, <vscale x 4 x float>, <vscale x 4 x float>)
...
---
name: fmul_float_zero
alignment: 4
tracksRegLiveness: true
tracksDebugUserValues: true
registers: []
liveins:
- { reg: '$p0', virtual-reg: '' }
- { reg: '$z0', virtual-reg: '' }
body: |
bb.0 (%ir-block.0):
liveins: $p0, $z0
; CHECK-LABEL: name: fmul_float_zero
; CHECK: liveins: $p0, $z0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: BUNDLE implicit-def $z0, implicit-def $q0, implicit-def $d0, implicit-def $s0, implicit-def $h0, implicit-def $b0, implicit-def $z0_hi, implicit $p0, implicit $z0 {
; CHECK-NEXT: $z0 = MOVPRFX_ZPzZ_S $p0, $z0
; CHECK-NEXT: $z0 = LSL_ZPmI_S renamable $p0, internal $z0, 0
; CHECK-NEXT: $z0 = FMUL_ZPmZ_S renamable $p0, internal killed $z0, internal killed renamable $z0
; CHECK-NEXT: }
; CHECK-NEXT: RET undef $lr, implicit $z0
renamable $z0 = nnan ninf nsz arcp contract afn reassoc FMUL_ZPZZ_ZERO_S renamable $p0, killed renamable $z0, renamable $z0
RET_ReallyLR implicit $z0
...
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