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d5cb6187da
This patch is the initial patch for support of the AIX extended vector ABI. The extended ABI treats vector registers V20-V31 as non-volatile and we add them as callee saved registers in this patch. Reviewed By: sfertile Differential Revision: https://reviews.llvm.org/D88676
96 lines
3.8 KiB
YAML
96 lines
3.8 KiB
YAML
# RUN: llc -mtriple powerpc64le-unknown-linux-gnu -x mir -mcpu=pwr8 -mattr=-altivec \
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# RUN: -run-pass=prologepilog --verify-machineinstrs < %s | \
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# RUN: FileCheck %s --check-prefixes=CHECK,SAVEONE
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# RUN: llc -mtriple powerpc64-unknown-linux-gnu -x mir -mcpu=pwr7 -mattr=-altivec \
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# RUN: -run-pass=prologepilog --verify-machineinstrs < %s | \
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# RUN: FileCheck %s --check-prefixes=CHECK,SAVEALL
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# RUN: llc -mtriple powerpc64-unknown-aix-xcoff -x mir -mcpu=pwr4 -mattr=-altivec \
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# RUN: -run-pass=prologepilog --verify-machineinstrs < %s | \
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# RUN: FileCheck %s --check-prefixes=CHECK,SAVEALL
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---
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name: CRAllSave
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alignment: 16
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tracksRegLiveness: true
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liveins:
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- { reg: '$x3', virtual-reg: '' }
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body: |
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bb.0.entry:
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liveins: $x3
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renamable $x29 = ANDI8_rec killed renamable $x3, 1, implicit-def dead $cr0, implicit-def $cr0gt
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renamable $cr2lt = COPY $cr0gt
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renamable $cr4lt = COPY $cr0gt
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renamable $x3 = COPY $x29
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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; CHECK-LABEL: fixedStack:
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; CHECK-NEXT: - { id: 0, type: spill-slot, offset: -24, size: 8, alignment: 8, stack-id: default,
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; CHECK-NEXT: callee-saved-register: '$x29', callee-saved-restored: true, debug-info-variable: '',
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; CHECK-NEXT: debug-info-expression: '', debug-info-location: '' }
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; CHECK-NEXT: - { id: 1, type: default, offset: 8, size: 4, alignment: 8, stack-id: default,
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; CHECK-NEXT: isImmutable: true, isAliased: false, callee-saved-register: '$cr4',
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; CHECK-NEXT: callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '',
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; CHECK-NEXT: debug-info-location: '' }
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; CHECK-LABEL: stack:
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; Verify the proper live-ins have been added in the prologue.
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; CHECK: liveins: $x3, $x29, $cr2, $cr4
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; CHECK: $x12 = MFCR8 implicit killed $cr2, implicit killed $cr4
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; CHECK-DAG: STD killed $x29, -24, $x1 :: (store 8 into %fixed-stack.0)
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; CHECK-DAG: STW8 killed $x12, 8, $x1
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; CHECK: $x29 = LD -24, $x1 :: (load 8 from %fixed-stack.0)
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; CHECK: $x12 = LWZ8 8, $x1
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; CHECK: $cr2 = MTOCRF8 $x12
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; CHECK: $cr4 = MTOCRF8 killed $x12
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...
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---
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name: CR2Save
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alignment: 16
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tracksRegLiveness: true
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liveins:
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- { reg: '$x3', virtual-reg: '' }
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body: |
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bb.0.entry:
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liveins: $x3
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renamable $x14 = ANDI8_rec killed renamable $x3, 1, implicit-def dead $cr0, implicit-def $cr0gt
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renamable $cr2lt = COPY $cr0gt
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renamable $x3 = COPY $x14
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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; CHECK-LABEL: CR2Save
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; CHECK-LABEL: fixedStack:
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; CHECK-NEXT: - { id: 0, type: spill-slot, offset: -144, size: 8, alignment: 16, stack-id: default,
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; CHECK-NEXT: callee-saved-register: '$x14', callee-saved-restored: true, debug-info-variable: '',
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; CHECK-NEXT: debug-info-expression: '', debug-info-location: '' }
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; CHECK-NEXT: - { id: 1, type: default, offset: 8, size: 4, alignment: 8, stack-id: default,
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; CHECK-NEXT: isImmutable: true, isAliased: false, callee-saved-register: '$cr2',
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; CHECK-NEXT: callee-saved-restored: true, debug-info-variable: '', debug-info-expression: '',
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; CHECK-NEXT: debug-info-location: '' }
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; CHECK-LABEL: stack:
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; Verify the proper live-ins have been added in the prologue.
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; CHECK: liveins: $x3, $x14, $cr2
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; ELF V2 ABI allows saving only the clobbered cr fields,
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; whereas the other ABIs do not.
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; SAVEONE: $x12 = MFOCRF8 killed $cr2
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; SAVEALL: $x12 = MFCR8 implicit killed $cr2
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; CHECK-DAG: STD killed $x14, -144, $x1 :: (store 8 into %fixed-stack.0, align 16)
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; CHECK-DAG: STW8 killed $x12, 8, $x1
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; CHECK: $x14 = LD -144, $x1 :: (load 8 from %fixed-stack.0, align 16)
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; CHECK: $x12 = LWZ8 8, $x1
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; CHECK: $cr2 = MTOCRF8 killed $x12
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...
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