104 lines
2.2 KiB
YAML
104 lines
2.2 KiB
YAML
# RUN: llc -o - %s -mtriple=armv7-- -verify-machineinstrs -run-pass=peephole-opt | FileCheck %s
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#
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# Make sure we do not crash on this input.
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# Note that this input could in principle be optimized, but right now we don't
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# have this case implemented so the output should simply be unchanged.
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#
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# CHECK-LABEL: name: func
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# CHECK: body: |
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# CHECK: bb.0:
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# CHECK: Bcc %bb.2, 1, undef $cpsr
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#
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# CHECK: bb.1:
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# CHECK: %0:dpr = IMPLICIT_DEF
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# CHECK: %1:gpr, %2:gpr = VMOVRRD %0, 14, $noreg
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# CHECK: B %bb.3
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#
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# CHECK: bb.2:
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# CHECK: %3:spr = IMPLICIT_DEF
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# CHECK: %4:gpr = VMOVRS %3, 14, $noreg
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#
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# CHECK: bb.3:
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# CHECK: %5:gpr = PHI %1, %bb.1, %4, %bb.2
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# CHECK: %6:spr = VMOVSR %5, 14, $noreg
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---
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name: func0
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tracksRegLiveness: true
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body: |
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bb.0:
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Bcc %bb.2, 1, undef $cpsr
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bb.1:
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%0:dpr = IMPLICIT_DEF
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%1:gpr, %2:gpr = VMOVRRD %0:dpr, 14, $noreg
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B %bb.3
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bb.2:
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%3:spr = IMPLICIT_DEF
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%4:gpr = VMOVRS %3:spr, 14, $noreg
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bb.3:
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%5:gpr = PHI %1, %bb.1, %4, %bb.2
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%6:spr = VMOVSR %5, 14, $noreg
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...
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# CHECK-LABEL: name: func1
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# CHECK: %6:spr = PHI %0, %bb.1, %2, %bb.2
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# CHEKC: %7:spr = COPY %6
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---
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name: func1
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tracksRegLiveness: true
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body: |
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bb.0:
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Bcc %bb.2, 1, undef $cpsr
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bb.1:
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%1:spr = IMPLICIT_DEF
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%0:gpr = VMOVRS %1, 14, $noreg
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B %bb.3
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bb.2:
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%3:spr = IMPLICIT_DEF
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%2:gpr = VMOVRS %3:spr, 14, $noreg
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bb.3:
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%4:gpr = PHI %0, %bb.1, %2, %bb.2
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%5:spr = VMOVSR %4, 14, $noreg
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...
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# The current implementation doesn't perform any transformations if undef
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# operands are involved.
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# CHECK-LABEL: name: func-undefops
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# CHECK: body: |
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# CHECK: bb.0:
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# CHECK: Bcc %bb.2, 1, undef $cpsr
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#
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# CHECK: bb.1:
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# CHECK: %0:gpr = VMOVRS undef %1:spr, 14, $noreg
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# CHECK: B %bb.3
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#
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# CHECK: bb.2:
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# CHECK: %2:gpr = VMOVRS undef %3:spr, 14, $noreg
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#
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# CHECK: bb.3:
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# CHECK: %4:gpr = PHI %0, %bb.1, %2, %bb.2
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# CHECK: %5:spr = VMOVSR %4, 14, $noreg
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---
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name: func-undefops
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tracksRegLiveness: true
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body: |
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bb.0:
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Bcc %bb.2, 1, undef $cpsr
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bb.1:
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%0:gpr = VMOVRS undef %1:spr, 14, $noreg
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B %bb.3
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bb.2:
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%2:gpr = VMOVRS undef %3:spr, 14, $noreg
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bb.3:
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%4:gpr = PHI %0, %bb.1, %2, %bb.2
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%5:spr = VMOVSR %4, 14, $noreg
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...
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