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# Check that the backend properly tracks debug-instr-references across the
# elim-compare pass.
#
# RUN: llc %s -mtriple=s390x-linux-gnu -mcpu=z14 -run-pass=systemz-elim-compare \
# RUN: -o - 2>&1 | FileCheck %s
# bb.0 - elimination of CHI, modification of BRC, no substitutions
# bb.1 - elimination of CHI, replacement of LR with LTR, one substitution
# bb.2 - elimination of L and CHI, modification of CondTrap into LAT, one substitution
# CHECK: name: foo
# CHECK: debugValueSubstitutions:
# these are the correct substitutions
# CHECK-NEXT: - { srcinst: 5, srcop: 0, dstinst: 13, dstop: 0, subreg: 0 }
# CHECK-NEXT: - { srcinst: 7, srcop: 0, dstinst: 9, dstop: 0, subreg: 0 }
# CHECK-NEXT: - { srcinst: 10, srcop: 0, dstinst: 14, dstop: 0, subreg: 0 }
# we also need to make sure that these are the only substitutions
# CHECK-NEXT: constants: []
---
name: foo
tracksRegLiveness: true
liveins:
- { reg: '$r2l', virtual-reg: '' }
- { reg: '$r3l', virtual-reg: '' }
- { reg: '$r4l', virtual-reg: '' }
- { reg: '$r5d', virtual-reg: '' }
debugValueSubstitutions: []
body: |
bb.0:
successors: %bb.1(0x80000000)
liveins: $r2l, $r3l, $r4l, $r5d
renamable $r3l = nsw AR killed renamable $r3l, renamable $r2l, implicit-def dead $cc, debug-instr-number 1
CHI renamable $r3l, 0, implicit-def $cc, debug-instr-number 2
BRC 14, 12, %bb.1, implicit $cc, debug-instr-number 3
bb.1:
successors: %bb.2(0x80000000)
liveins: $r2l, $r3l, $r4l, $r5d
CHI renamable $r2l, 0, implicit-def $cc, debug-instr-number 4
renamable $r3l = LR renamable $r2l, debug-instr-number 5
BRC 14, 8, %bb.2, implicit killed $cc, debug-instr-number 6
bb.2:
successors: %bb.3(0x80000000)
liveins: $r2l, $r3l, $r4l, $r5d
renamable $r2l = L killed renamable $r5d, 0, $noreg, debug-instr-number 7
CHI renamable $r2l, 0, implicit-def $cc, debug-instr-number 8
CondTrap 14, 8, implicit killed $cc, debug-instr-number 9
J %bb.3
bb.3:
successors: %bb.4(080000000)
liveins: $r2l, $r3l, $r4l, $r5d
renamable $r3l = L renamable $r5d, 0, $noreg, debug-instr-number 10
CHI renamable $r3l, 0, implicit-def $cc, debug-instr-number 11
BRC 14, 8, %bb.4, implicit killed $cc, debug-instr-number 12
bb.4:
$r2l = LHI 2
Return implicit $r2l
...
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