llvm/test/DebugInfo/MIR/InstrRef/x86-lea-fixup.mir

# RUN: llc -run-pass x86-fixup-LEAs -mtriple=x86_64-gnu-unknown -verify-machineinstrs -mcpu=corei7-avx -o - %s | FileCheck %s --check-prefix=COREI7
# RUN: llc -run-pass x86-fixup-LEAs -mtriple=x86_64-gnu-unknown -verify-machineinstrs -mcpu=haswell -o - %s | FileCheck %s --check-prefix=HASWELL
# RUN: llc -run-pass x86-fixup-LEAs -mtriple=x86_64-unknown-unknown -verify-machineinstrs -mcpu=atom -o - %s | FileCheck %s --check-prefix=ATOM
#
# Test several LEA <=> ADD transformations that the fixup-leas pass performs,
# and check that any debug-instr-number attached to the original instruction
# is substituted onto the new instruction.
# Some are only reachable under specific CPU modes it seems -- each function
# in this file is only tested by one prefix / CPU mode. Some i386 specific
# behaviours are in the -2 flavour of this file.
---
# COREI7-LABE: name: pr43758
name:            pr43758
alignment:       16
tracksRegLiveness: true
liveins:
  - { reg: '$rax' }
  - { reg: '$rbp' }
# COREI7:      debugValueSubstitutions:
# COREI7-NEXT: - { srcinst: 1, srcop: 0, dstinst: 2, dstop: 0, subreg: 0 }
body:             |
  bb.0:
    liveins: $rax, $rbp

    $ebp = LEA64_32r killed $rbp, 1, killed $rax, 0, $noreg, debug-instr-number 1
    ; COREI7: ADD32rr {{.*}} debug-instr-number 2
    RET64 $ebp

...
---
name:            test_mul_spec
# HASWELL-LABEL: name: test_mul_spec
alignment:       16
tracksRegLiveness: true
liveins:
  - { reg: '$edi' }
frameInfo:
  maxAlignment:    1
  maxCallFrameSize: 0
machineFunctionInfo: {}
# HASWELL:      debugValueSubstitutions:
# HASWELL-NEXT:  - { srcinst: 1, srcop: 0, dstinst: 3, dstop: 0, subreg: 0 }
# HASWELL-NEXT:  - { srcinst: 2, srcop: 0, dstinst: 4, dstop: 0, subreg: 0 }
body:             |
  bb.0:
    liveins: $edi
  
    renamable $edi = KILL $edi, implicit-def $rdi
    renamable $ecx = nsw LEA64_32r renamable $rdi, 8, renamable $rdi, 42, $noreg, debug-instr-number 1
    ; HASWELL: ADD32ri8 {{.*}} debug-instr-number 3
    renamable $eax = nsw LEA64_32r killed renamable $rdi, 4, renamable $rdi, 2, $noreg, debug-instr-number 2
    ; HASWELL: ADD32ri8 {{.*}} debug-instr-number 4
    renamable $eax = nsw IMUL32rr killed renamable $eax, killed renamable $ecx, implicit-def dead $eflags
    RET64 $eax

...
---
name:            testthree
# ATOM-LABEL: name: testthree
alignment:       16
tracksRegLiveness: true
frameInfo:
  maxAlignment:    1
  maxCallFrameSize: 0
machineFunctionInfo: {}
# ATOM:       debugValueSubstitutions:
# ATOM-NEXT:  - { srcinst: 1, srcop: 0, dstinst: 2, dstop: 0, subreg: 0 }
body:             |
  bb.0.entry:
    renamable $ecx = MOV32ri 0
    renamable $eax = XOR32rr undef $eax, undef $eax, implicit-def dead $eflags
    renamable $ecx = nsw ADD32rr renamable $ecx, renamable $eax, implicit-def dead $eflags, implicit killed $rax, implicit killed $rcx, implicit-def $rcx, debug-instr-number 1
    ; ATOM: LEA64_32r {{.*}} debug-instr-number 2
    renamable $eax = MOV32rm killed renamable $rcx, 1, $noreg, 0, $noreg :: (load (s32) from `i32 *undef`)
    RET64 $eax

...