| # 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 } |
| # |
| # CHECK: LEA64_32r |
| # CHECK-SAME: debug-instr-number 2 |
| # |
| # CHECK: DBG_INSTR_REF 1, 0 |
| --- |
| name: test1 |
| alignment: 16 |
| tracksRegLiveness: 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 = ADD32ri8_DB killed %1, 3, implicit-def dead $eflags, debug-instr-number 1 |
| DBG_INSTR_REF 1, 0 |
| $eax = COPY killed %2 |
| RET 0, killed $eax |
| |
| ... |
| |
