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# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -mtriple=aarch64 -run-pass aarch64-ldst-opt %s -o - | FileCheck %s
---
name: LdOffset
tracksRegLiveness: true
liveins:
- { reg: '$x0', virtual-reg: '' }
body: |
bb.0.entry:
liveins: $x0
; CHECK-LABEL: name: LdOffset
; CHECK: liveins: $x0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: $x8 = ADDXri $x0, 253, 12
; CHECK-NEXT: renamable $w0 = LDRBBui killed renamable $x8, 3704
; CHECK-NEXT: RET undef $lr, implicit $w0
renamable $w8 = MOVZWi 56952, 0
renamable $w8 = MOVKWi $w8, 15, 16, implicit-def $x8
renamable $w0 = LDRBBroX killed renamable $x0, killed renamable $x8, 0, 0
RET undef $lr, implicit $w0
...
# Negative test: the IndexReg missing killed flags
---
name: LdOffset_missing_killed
tracksRegLiveness: true
liveins:
- { reg: '$x0', virtual-reg: '' }
body: |
bb.0.entry:
liveins: $x0
; CHECK-LABEL: name: LdOffset_missing_killed
; CHECK: liveins: $x0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $w8 = MOVZWi 56952, 0
; CHECK-NEXT: renamable $w8 = MOVKWi $w8, 15, 16, implicit-def $x8
; CHECK-NEXT: renamable $w0 = LDRBBroX killed renamable $x0, renamable $x8, 0, 0
; CHECK-NEXT: RET undef $lr, implicit $w0
renamable $w8 = MOVZWi 56952, 0
renamable $w8 = MOVKWi $w8, 15, 16, implicit-def $x8
renamable $w0 = LDRBBroX killed renamable $x0, renamable $x8, 0, 0
RET undef $lr, implicit $w0
...
# Negative test: No MOVZWi used for the const offset
---
name: LdOffset_missing_MOVZ
tracksRegLiveness: true
liveins:
- { reg: '$x0', virtual-reg: '' }
body: |
bb.0.entry:
liveins: $x0
; CHECK-LABEL: name: LdOffset_missing_MOVZ
; CHECK: liveins: $x0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $w8 = MOVKWi $w8, 15, 16, implicit-def $x8
; CHECK-NEXT: renamable $w0 = LDRBBroX killed renamable $x0, killed renamable $x8, 0, 0
; CHECK-NEXT: RET undef $lr, implicit $w0
renamable $w8 = MOVKWi $w8, 15, 16, implicit-def $x8
renamable $w0 = LDRBBroX killed renamable $x0, killed renamable $x8, 0, 0
RET undef $lr, implicit $w0
...
# Negative test: MOVZWi and MOVKWi don't set the same register
---
name: LdOffset_different_register_MOVZ_MOVK
tracksRegLiveness: true
liveins:
- { reg: '$x0', virtual-reg: '' }
body: |
bb.0.entry:
liveins: $x0
; CHECK-LABEL: name: LdOffset_different_register_MOVZ_MOVK
; CHECK: liveins: $x0
; CHECK-NEXT: {{ $}}
; CHECK-NEXT: renamable $w7 = MOVZWi 56952, 0
; CHECK-NEXT: renamable $w8 = MOVKWi $w8, 15, 16, implicit-def $x8
; CHECK-NEXT: renamable $w0 = LDRBBroX killed renamable $x0, killed renamable $x8, 0, 0
; CHECK-NEXT: RET undef $lr, implicit $w0
renamable $w7 = MOVZWi 56952, 0
renamable $w8 = MOVKWi $w8, 15, 16, implicit-def $x8
renamable $w0 = LDRBBroX killed renamable $x0, killed renamable $x8, 0, 0
RET undef $lr, implicit $w0
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