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# RUN: llc -mtriple powerpc64le-unknown-linux-gnu -x mir -mcpu=pwr8 \
# RUN: -run-pass=prologepilog --verify-machineinstrs < %s | \
# RUN: FileCheck %s --check-prefixes=CHECK,SAVEONE
# RUN: llc -mtriple powerpc64-unknown-linux-gnu -x mir -mcpu=pwr7 \
# RUN: -run-pass=prologepilog --verify-machineinstrs < %s | \
# RUN: FileCheck %s --check-prefixes=CHECK,SAVEALL
# RUN: llc -mtriple powerpc64-unknown-aix-xcoff -x mir -mcpu=pwr4 \
# RUN: -run-pass=prologepilog --verify-machineinstrs < %s | \
# RUN: FileCheck %s --check-prefixes=CHECK,SAVEALL
---
name: CRAllSave
alignment: 16
tracksRegLiveness: true
liveins:
- { reg: '$x3', virtual-reg: '' }
body: |
bb.0.entry:
liveins: $x3
renamable $x29 = ANDI8_rec killed renamable $x3, 1, implicit-def dead $cr0, implicit-def $cr0gt
renamable $cr2lt = COPY $cr0gt
renamable $cr4lt = COPY $cr0gt
renamable $x3 = COPY $x29
BLR8 implicit $lr8, implicit $rm, implicit $x3
; CHECK-LABEL: fixedStack:
; CHECK-NEXT: - { id: 0, type: spill-slot, offset: -24, size: 8, alignment: 8, stack-id: default,
; CHECK-NEXT: callee-saved-register: '$x29', callee-saved-restored: true, debug-info-variable: '',
; CHECK-NEXT: debug-info-expression: '', debug-info-location: '' }
; CHECK-NEXT: - { id: 1, type: default, offset: 8, size: 4, alignment: 8, stack-id: default,
; CHECK-NEXT: isImmutable: true, isAliased: false, callee-saved-register: '$cr4',
; CHECK-NEXT: callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '',
; CHECK-NEXT: debug-info-location: '' }
; CHECK-LABEL: stack:
; Verify the proper live-ins have been added in the prologue.
; CHECK: liveins: $x3, $x29, $cr2, $cr4
; CHECK: $x12 = MFCR8 implicit killed $cr2, implicit killed $cr4
; CHECK-DAG: STD killed $x29, -24, $x1 :: (store 8 into %fixed-stack.0)
; CHECK-DAG: STW8 killed $x12, 8, $x1
; CHECK: $x29 = LD -24, $x1 :: (load 8 from %fixed-stack.0)
; CHECK: $x12 = LWZ8 8, $x1
; CHECK: $cr2 = MTOCRF8 $x12
; CHECK: $cr4 = MTOCRF8 killed $x12
...
---
name: CR2Save
alignment: 16
tracksRegLiveness: true
liveins:
- { reg: '$x3', virtual-reg: '' }
body: |
bb.0.entry:
liveins: $x3
renamable $x14 = ANDI8_rec killed renamable $x3, 1, implicit-def dead $cr0, implicit-def $cr0gt
renamable $cr2lt = COPY $cr0gt
renamable $x3 = COPY $x14
BLR8 implicit $lr8, implicit $rm, implicit $x3
; CHECK-LABEL: CR2Save
; CHECK-LABEL: fixedStack:
; CHECK-NEXT: - { id: 0, type: spill-slot, offset: -144, size: 8, alignment: 16, stack-id: default,
; CHECK-NEXT: callee-saved-register: '$x14', callee-saved-restored: true, debug-info-variable: '',
; CHECK-NEXT: debug-info-expression: '', debug-info-location: '' }
; CHECK-NEXT: - { id: 1, type: default, offset: 8, size: 4, alignment: 8, stack-id: default,
; CHECK-NEXT: isImmutable: true, isAliased: false, callee-saved-register: '$cr2',
; CHECK-NEXT: callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '',
; CHECK-NEXT: debug-info-location: '' }
; CHECK-LABEL: stack:
; Verify the proper live-ins have been added in the prologue.
; CHECK: liveins: $x3, $x14, $cr2
; ELF V2 ABI allows saving only the clobbered cr fields,
; whereas the other ABIs do not.
; SAVEONE: $x12 = MFOCRF8 killed $cr2
; SAVEALL: $x12 = MFCR8 implicit killed $cr2
; CHECK-DAG: STD killed $x14, -144, $x1 :: (store 8 into %fixed-stack.0, align 16)
; CHECK-DAG: STW8 killed $x12, 8, $x1
; CHECK: $x14 = LD -144, $x1 :: (load 8 from %fixed-stack.0, align 16)
; CHECK: $x12 = LWZ8 8, $x1
; CHECK: $cr2 = MTOCRF8 killed $x12
...
|
