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5a0ca09690
Summary: In the ppc-expand-isel pass, we use stepForward() to update the liveins, this function is not recommended, because it needs the accurate kill info. This patch uses the function computeAndAddLiveIns() to update the liveins, it's the recommended method and can fix the liveins bug for ppc-expand-isel pass.. Reviewed By: efriedma, lkail Differential Revision: https://reviews.llvm.org/D78657
81 lines
2.9 KiB
YAML
81 lines
2.9 KiB
YAML
# RUN: llc -mtriple powerpc64-unknown-linux-gnu -run-pass=ppc-expand-isel -o \
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# RUN: - %s -verify-machineinstrs | FileCheck %s
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---
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name: expand_isel_liveness1
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tracksRegLiveness: true
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registers: []
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liveins:
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- { reg: '$x3', virtual-reg: '' }
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- { reg: '$x4', virtual-reg: '' }
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- { reg: '$x5', virtual-reg: '' }
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- { reg: '$x6', virtual-reg: '' }
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body: |
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bb.0:
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liveins: $x3, $x4, $x5, $x6
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renamable $x8 = MULLD renamable $x5, renamable $x4
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renamable $cr5 = CMPDI renamable $x3, 0
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dead renamable $x9 = MULHDU_rec renamable $x3, renamable $x6, implicit-def $cr0
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renamable $x3 = MULLD killed renamable $x3, renamable $x6
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$cr1 = MCRF killed $cr0
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renamable $x3 = ADD8 killed renamable $x3, killed renamable $x8
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renamable $cr0 = CMPDI renamable $x5, 0
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renamable $cr5lt = CRNOR killed renamable $cr0eq, killed renamable $cr5eq, implicit $cr5, implicit $cr0
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renamable $cr0 = CMPLDI renamable $x3, 0
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renamable $x8 = MULHDU renamable $x4, renamable $x6
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renamable $x3 = ADD8 renamable $x8, killed renamable $x3
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renamable $cr6 = CMPLD renamable $x3, killed renamable $x8
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renamable $cr5gt = CRANDC killed renamable $cr6lt, killed renamable $cr0eq, implicit $cr0, implicit $cr6
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renamable $cr5lt = CRORC killed renamable $cr5lt, killed renamable $cr1eq, implicit $cr1
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renamable $x7 = LI8 1
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dead renamable $x5 = MULHDU_rec killed renamable $x5, renamable $x4, implicit-def $cr0
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renamable $cr5lt = CRORC killed renamable $cr5lt, killed renamable $cr0eq, implicit $cr0
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renamable $cr5lt = CRNOR killed renamable $cr5lt, killed renamable $cr5gt
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renamable $x4 = MULLD killed renamable $x4, killed renamable $x6
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renamable $x5 = ISEL8 $zero8, killed renamable $x7, killed renamable $cr5lt
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BLR8 implicit $lr8, implicit $rm, implicit killed $x3, implicit killed $x4, implicit killed $x5
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; CHECK-LABEL: name: expand_isel_liveness1
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; CHECK: bb.1:
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; CHECK: liveins: $x3, $x4, $x7
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; CHECK: renamable $x5 = ORI8 killed renamable $x7, 0
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; CHECK: B %bb.3
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; CHECK: bb.2:
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; CHECK: liveins: $x3, $x4
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; CHECK: renamable $x5 = ADDI8 $zero8, 0
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; CHECK: bb.3:
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; CHECK: liveins: $x3, $x4, $x5
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; CHECK: BLR8 implicit $lr8, implicit $rm, implicit killed $x3, implicit killed $x4, implicit killed $x5
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...
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---
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name: expand_isel_liveness2
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tracksRegLiveness: true
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liveins:
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- { reg: '$r0' }
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- { reg: '$r3' }
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body: |
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bb.0.entry:
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liveins: $r0, $r3
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$r5 = ADDI $r3, 1
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$cr0 = CMPWI $r3, 0
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$r3 = ISEL $zero, killed $r0, killed $cr0gt
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; CHECK-LABEL: name: expand_isel_liveness2
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; CHECK: bb.0.entry:
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; CHECK: liveins: $r0, $r3
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; CHECK: $r5 = ADDI $r3, 1
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; CHECK: $cr0 = CMPWI $r3, 0
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; CHECK: BC killed $cr0gt, %bb.2
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; CHECK: bb.1.entry:
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; CHECK: liveins: $r0
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; CHECK: $r3 = ORI killed $r0, 0
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; CHECK: B %bb.3
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; CHECK: bb.2.entry:
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; CHECK-NOT: liveins: $zero
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; CHECK: $r3 = ADDI $zero, 0
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...
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