# NOTE: Assertions have been autogenerated by utils/update_mir_test_checks.py
# RUN: llc -o - %s -mtriple=armv7-- -verify-machineinstrs -run-pass=peephole-opt | FileCheck %s
#
# Make sure we do not crash on this input.
# Note that this input could in principle be optimized, but right now we don't
# have this case implemented so the output should simply be unchanged.
---
name: func0
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: func0
; CHECK: bb.0:
; CHECK: successors: %bb.2(0x40000000), %bb.1(0x40000000)
; CHECK: Bcc %bb.2, 1 /* CC::ne */, undef $cpsr
; CHECK: bb.1:
; CHECK: successors: %bb.3(0x80000000)
; CHECK: [[DEF:%[0-9]+]]:dpr = IMPLICIT_DEF
; CHECK: [[VMOVRRD:%[0-9]+]]:gpr, [[VMOVRRD1:%[0-9]+]]:gpr = VMOVRRD [[DEF]], 14 /* CC::al */, $noreg
; CHECK: B %bb.3
; CHECK: bb.2:
; CHECK: successors: %bb.3(0x80000000)
; CHECK: [[DEF1:%[0-9]+]]:spr = IMPLICIT_DEF
; CHECK: [[VMOVRS:%[0-9]+]]:gpr = VMOVRS [[DEF1]], 14 /* CC::al */, $noreg
; CHECK: bb.3:
; CHECK: [[PHI:%[0-9]+]]:gpr = PHI [[VMOVRRD]], %bb.1, [[VMOVRS]], %bb.2
; CHECK: [[VMOVSR:%[0-9]+]]:spr = VMOVSR [[PHI]], 14 /* CC::al */, $noreg
bb.0:
Bcc %bb.2, 1, undef $cpsr
bb.1:
%0:dpr = IMPLICIT_DEF
%1:gpr, %2:gpr = VMOVRRD %0:dpr, 14, $noreg
B %bb.3
bb.2:
%3:spr = IMPLICIT_DEF
%4:gpr = VMOVRS %3:spr, 14, $noreg
bb.3:
%5:gpr = PHI %1, %bb.1, %4, %bb.2
%6:spr = VMOVSR %5, 14, $noreg
...
---
name: func1
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: func1
; CHECK: bb.0:
; CHECK: successors: %bb.2(0x40000000), %bb.1(0x40000000)
; CHECK: Bcc %bb.2, 1 /* CC::ne */, undef $cpsr
; CHECK: bb.1:
; CHECK: successors: %bb.3(0x80000000)
; CHECK: [[DEF:%[0-9]+]]:spr = IMPLICIT_DEF
; CHECK: [[VMOVRS:%[0-9]+]]:gpr = VMOVRS [[DEF]], 14 /* CC::al */, $noreg
; CHECK: B %bb.3
; CHECK: bb.2:
; CHECK: successors: %bb.3(0x80000000)
; CHECK: [[DEF1:%[0-9]+]]:spr = IMPLICIT_DEF
; CHECK: [[VMOVRS1:%[0-9]+]]:gpr = VMOVRS [[DEF1]], 14 /* CC::al */, $noreg
; CHECK: bb.3:
; CHECK: [[PHI:%[0-9]+]]:spr = PHI [[DEF]], %bb.1, [[DEF1]], %bb.2
; CHECK: [[PHI1:%[0-9]+]]:gpr = PHI [[VMOVRS]], %bb.1, [[VMOVRS1]], %bb.2
; CHECK: [[COPY:%[0-9]+]]:spr = COPY [[PHI]]
bb.0:
Bcc %bb.2, 1, undef $cpsr
bb.1:
%1:spr = IMPLICIT_DEF
%0:gpr = VMOVRS %1, 14, $noreg
B %bb.3
bb.2:
%3:spr = IMPLICIT_DEF
%2:gpr = VMOVRS %3:spr, 14, $noreg
bb.3:
%4:gpr = PHI %0, %bb.1, %2, %bb.2
%5:spr = VMOVSR %4, 14, $noreg
...
# The current implementation doesn't perform any transformations if undef
# operands are involved.
---
name: func-undefops
tracksRegLiveness: true
body: |
; CHECK-LABEL: name: func-undefops
; CHECK: bb.0:
; CHECK: successors: %bb.2(0x40000000), %bb.1(0x40000000)
; CHECK: Bcc %bb.2, 1 /* CC::ne */, undef $cpsr
; CHECK: bb.1:
; CHECK: successors: %bb.3(0x80000000)
; CHECK: [[VMOVRS:%[0-9]+]]:gpr = VMOVRS undef %1:spr, 14 /* CC::al */, $noreg
; CHECK: B %bb.3
; CHECK: bb.2:
; CHECK: successors: %bb.3(0x80000000)
; CHECK: [[VMOVRS1:%[0-9]+]]:gpr = VMOVRS undef %3:spr, 14 /* CC::al */, $noreg
; CHECK: bb.3:
; CHECK: [[PHI:%[0-9]+]]:gpr = PHI [[VMOVRS]], %bb.1, [[VMOVRS1]], %bb.2
; CHECK: [[VMOVSR:%[0-9]+]]:spr = VMOVSR [[PHI]], 14 /* CC::al */, $noreg
bb.0:
Bcc %bb.2, 1, undef $cpsr
bb.1:
%0:gpr = VMOVRS undef %1:spr, 14, $noreg
B %bb.3
bb.2:
%2:gpr = VMOVRS undef %3:spr, 14, $noreg
bb.3:
%4:gpr = PHI %0, %bb.1, %2, %bb.2
%5:spr = VMOVSR %4, 14, $noreg
...
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