derek.holloway
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143 lines
3.8 KiB
YAML
143 lines
3.8 KiB
YAML
# RUN: llc -mtriple=powerpc64le-linux-gnu -stop-after ppc-pre-emit-peephole %s -o - -verify-machineinstrs | FileCheck %s
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---
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name: test1
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# The cmp instr is optimized with the record form.
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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successors: %bb.1(0x30000000), %bb.2(0x50000000)
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liveins: $x3, $x4
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renamable $x3 = OR8 killed renamable $x3, killed renamable $x4
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renamable $cr0 = CMPDI renamable $x3, 0, implicit killed $x3
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; CHECK-LABEL: name: test1
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; CHECK: renamable $x3 = OR8_rec killed renamable $x3, killed renamable $x4, implicit-def $cr0
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; CHECK-NOT: CMPDI
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BCC 68, killed renamable $cr0, %bb.2
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bb.1:
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$x3 = LI8 102
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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bb.2:
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$x3 = LI8 116
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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...
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---
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name: test2
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# The imm of the comparison instr isn't 0.
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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successors: %bb.1(0x30000000), %bb.2(0x50000000)
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liveins: $x3, $x4
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renamable $x3 = OR8 killed renamable $x3, killed renamable $x4
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renamable $cr0 = CMPDI renamable $x3, 2, implicit killed $x3
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; CHECK-LABEL: name: test2
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; CHECK: CMPDI
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BCC 68, killed renamable $cr0, %bb.2
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bb.1:
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$x3 = LI8 102
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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bb.2:
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$x3 = LI8 116
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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...
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---
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name: test3
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# The comparison instr has a implicit def.
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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successors: %bb.1(0x30000000), %bb.2(0x50000000)
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liveins: $x3, $x4
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renamable $x3 = OR8 killed renamable $x3, killed renamable $x4
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renamable $cr0 = CMPDI renamable $x3, 0, implicit-def $x3
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; CHECK-LABEL: name: test3
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; CHECK: CMPDI
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BCC 68, killed renamable $cr0, %bb.2
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bb.1:
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$x3 = LI8 102
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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bb.2:
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$x3 = LI8 116
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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...
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---
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name: test4
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# There is another use for cr0 between OR8 instr and CMPWI instr.
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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successors: %bb.1(0x30000000), %bb.2(0x50000000)
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liveins: $x3, $x4, $cr0
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renamable $x3 = OR8 killed renamable $x3, killed renamable $x4
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renamable $cr1 = MCRF killed $cr0, implicit $x3
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renamable $cr0 = CMPDI renamable $x3, 0, implicit killed $x3, implicit $cr1
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; CHECK-LABEL: name: test4
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; CHECK: CMPDI
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BCC 68, killed renamable $cr0, %bb.2
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bb.1:
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$x3 = LI8 102
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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bb.2:
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$x3 = LI8 116
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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...
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---
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name: test5
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# There is another def for cr0 between OR8 instr and CMPWI instr.
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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successors: %bb.1(0x30000000), %bb.2(0x50000000)
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liveins: $x3, $x4
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renamable $x3 = OR8 killed renamable $x3, renamable $x4
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renamable $cr1 = CMPD renamable $x3, renamable $x4, implicit-def $cr0
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renamable $cr0 = CMPDI renamable $x3, 0, implicit killed $x3, implicit $cr1
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; CHECK-LABEL: name: test5
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; CHECK: CMPDI
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BCC 68, killed renamable $cr0, %bb.2
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bb.1:
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$x3 = LI8 102
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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bb.2:
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$x3 = LI8 116
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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...
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---
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name: test6
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# The SrcReg isn't CR0.
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tracksRegLiveness: true
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body: |
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bb.0.entry:
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successors: %bb.1(0x30000000), %bb.2(0x50000000)
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liveins: $x3, $x4
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renamable $x3 = OR8 killed renamable $x3, killed renamable $x4
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renamable $cr1 = CMPDI renamable $x3, 0, implicit killed $x3
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; CHECK-LABEL: name: test6
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; CHECK: CMPDI
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BCC 68, killed renamable $cr1, %bb.2
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bb.1:
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$x3 = LI8 102
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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bb.2:
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$x3 = LI8 116
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BLR8 implicit $lr8, implicit $rm, implicit $x3
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...
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