test/CodeGen/MIR/X86/instr-symbols-and-mcsymbol-operands.mir

# RUN: llc -march=x86-64 -run-pass none -o - %s | FileCheck %s
# This test ensures that the MIR parser parses pre- and post-instruction symbols
# and MCSymbol operands correctly.

--- |
  declare void @f(i32 %x) nounwind

  declare void @g(i32 %x) nounwind

  declare void @h(i32 %x) nounwind

  define i64 @test(i32 %x) nounwind {
  entry:
    call void @f(i32 %x)
    call void @g(i32 %x)
    call void @h(i32 %x), !dbg !9
    ret i64 undef
  }

  !llvm.dbg.cu = !{!0}
  !llvm.module.flags = !{!6, !7}

  !0 = distinct !DICompileUnit(language: DW_LANG_C99, file: !1, producer: "", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, retainedTypes: !2, globals: !2, imports: !2)
  !1 = !DIFile(filename: "test.ll", directory: "")
  !2 = !{}
  !4 = distinct !DISubprogram(name: "test", scope: !5, file: !5, line: 4, type: !2, isLocal: false, isDefinition: true, scopeLine: 4, flags: DIFlagPrototyped, isOptimized: false, unit: !0, retainedNodes: !2)
  !5 = !DIFile(filename: "test.c", directory: "")
  !6 = !{i32 2, !"Dwarf Version", i32 4}
  !7 = !{i32 2, !"Debug Info Version", i32 3}
  !9 = !DILocation(line: 1, scope: !4)

...
---
name: test
# CHECK-LABEL: name: test
tracksRegLiveness: true
frameInfo:
  hasCalls: true
body: |
  bb.0.entry:
    liveins: $edi

    %0:gr32 = COPY $edi
    %1:gr32 = COPY killed %0
    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def $rsp, implicit-def $eflags, implicit-def $ssp, implicit $rsp, implicit $ssp
    $edi = COPY %1

    CALL64pcrel32 @f, csr_64, implicit $rsp, implicit $ssp, implicit $edi, pre-instr-symbol <mcsymbol .Lpre_f>, post-instr-symbol <mcsymbol .Lpost_f>
  ; CHECK: CALL64pcrel32 @f, {{.*}}, pre-instr-symbol <mcsymbol .Lpre_f>, post-instr-symbol <mcsymbol .Lpost_f>

    ADJCALLSTACKUP64 0, 0, implicit-def $rsp, implicit-def $eflags, implicit-def $ssp, implicit $rsp, implicit $ssp
    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def $rsp, implicit-def $eflags, implicit-def $ssp, implicit $rsp, implicit $ssp
    $edi = COPY %1

    CALL64pcrel32 @g, csr_64, implicit $rsp, implicit $ssp, implicit $edi, pre-instr-symbol <mcsymbol .Lpre_g>
  ; CHECK: CALL64pcrel32 @g, {{.*}}, pre-instr-symbol <mcsymbol .Lpre_g>

    ADJCALLSTACKUP64 0, 0, implicit-def $rsp, implicit-def $eflags, implicit-def $ssp, implicit $rsp, implicit $ssp
    ADJCALLSTACKDOWN64 0, 0, 0, implicit-def $rsp, implicit-def $eflags, implicit-def $ssp, implicit $rsp, implicit $ssp
    $edi = COPY %1

    CALL64pcrel32 @h, csr_64, implicit $rsp, implicit $ssp, implicit $edi, post-instr-symbol <mcsymbol .Lpost_h>, debug-location !9
  ; CHECK: CALL64pcrel32 @h, {{.*}}, post-instr-symbol <mcsymbol .Lpost_h>, debug-location

    ADJCALLSTACKUP64 0, 0, implicit-def $rsp, implicit-def $eflags, implicit-def $ssp, implicit $rsp, implicit $ssp

    %2:gr64 = MOV64ri32 <mcsymbol .Lpre_f>
    %3:gr64 = MOV64ri32 <mcsymbol .Lpost_f>
    %4:gr64 = MOV64ri32 <mcsymbol .Lpre_g>
    %5:gr64 = MOV64ri32 <mcsymbol .Lpost_h>
  ; CHECK: %2:gr64 = MOV64ri32 <mcsymbol .Lpre_f>
  ; CHECK: %3:gr64 = MOV64ri32 <mcsymbol .Lpost_f>
  ; CHECK: %4:gr64 = MOV64ri32 <mcsymbol .Lpre_g>
  ; CHECK: %5:gr64 = MOV64ri32 <mcsymbol .Lpost_h>

    %6:gr64 = ADD64rr killed %2, killed %3, implicit-def $eflags
    %7:gr64 = ADD64rr killed %4, killed %5, implicit-def $eflags
    %8:gr64 = ADD64rr killed %6, killed %7, implicit-def $eflags
    $rax = COPY %8
    RETQ implicit $rax

...