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# RUN: llc -run-pass=twoaddressinstruction -mtriple=x86_64-- -o - %s -experimental-debug-variable-locations | FileCheck %s
#
# REQUIRES: x86-registered-target
#
# Test that a new instruction (LEA) is created when the two-addr add below is
# converted to three address; and that an appropriate substitution is created.
# Maybe at some point we'll normalise DBG_INSTR_REFs on output, but until then,
# lets not.
#
# CHECK: debugValueSubstitutions:
# CHECK-NEXT: - { srcinst: 1, srcop: 0, dstinst: 2, dstop: 0, subreg: 0 }
#
# CHECK: LEA64_32r
# CHECK-SAME: debug-instr-number 2
#
# CHECK: DBG_INSTR_REF dbg-instr-ref(1, 0)
---
name: test1
alignment: 16
tracksRegLiveness: true
debugInstrRef: true
registers:
- { id: 0, class: gr32 }
- { id: 1, class: gr32 }
- { id: 2, class: gr32 }
liveins:
- { reg: '$edi', virtual-reg: '%0' }
frameInfo:
maxAlignment: 1
machineFunctionInfo: {}
body: |
bb.0:
liveins: $edi
%0:gr32 = COPY killed $edi
%1:gr32 = SHL32ri killed %0, 5, implicit-def dead $eflags
%2:gr32 = ADD32ri_DB killed %1, 3, implicit-def dead $eflags, debug-instr-number 1
DBG_INSTR_REF dbg-instr-ref(1, 0)
$eax = COPY killed %2
RET 0, killed $eax
...
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