llvm/test/CodeGen/MIR/Generic/diexpression.mir

# RUN: sed -e 's/STACK_EXPR//g' -e 's/BODY_EXPR//g' %s | llc -x mir -run-pass none -o - 2>&1 | FileCheck --check-prefix=EXPR-NONE %s
# RUN: sed -e 's/STACK_EXPR/DW_OP_LLVM_arg, 0, DW_OP_dup, DW_OP_plus/g' -e 's/BODY_EXPR/DW_OP_LLVM_arg, 0, DW_OP_dup, DW_OP_plus/g' %s \
# RUN:  | llc -x mir -run-pass none -o - 2>&1 | FileCheck --check-prefix=EXPR-SOME %s
# RUN: sed -e 's/STACK_EXPR/DW_OP_foobar/g' -e 's/BODY_EXPR//g' %s | not llc -x mir -run-pass none -o - 2>&1 | FileCheck --check-prefix=EXPR-ERR-STACK-INVALID-OP %s
# RUN: sed -e 's/STACK_EXPR//g' -e 's/BODY_EXPR/DW_OP_foobar/g' %s | not llc -x mir -run-pass none -o - 2>&1 | FileCheck --check-prefix=EXPR-ERR-BODY-INVALID-OP %s
# RUN: sed -e 's/STACK_EXPR/DW_ATE_foobar/g' -e 's/BODY_EXPR//g' %s | not llc -x mir -run-pass none -o - 2>&1 | FileCheck --check-prefix=EXPR-ERR-STACK-INVALID-ATTR %s
# RUN: sed -e 's/STACK_EXPR//g' -e 's/BODY_EXPR/DW_ATE_foobar/g' %s | not llc -x mir -run-pass none -o - 2>&1 | FileCheck --check-prefix=EXPR-ERR-BODY-INVALID-ATTR %s
# RUN: sed -e 's/STACK_EXPR/foobar/g' -e 's/BODY_EXPR//g' %s | not llc -x mir -run-pass none -o - 2>&1 | FileCheck --check-prefix=EXPR-ERR-STACK-INVALID-INT %s
# RUN: sed -e 's/STACK_EXPR//g' -e 's/BODY_EXPR/foobar/g' %s | not llc -x mir -run-pass none -o - 2>&1 | FileCheck --check-prefix=EXPR-ERR-BODY-INVALID-INT %s

# Test that we successfully parse valid DIExpression metadata in MIR, and that
# we reject invalid DIExpression metadata in MIR.

--- |
  define void @func() #0 !dbg !6 {
  entry:
    call void @llvm.dbg.value(metadata i32 0, metadata !10, metadata !DIExpression()), !dbg !12
    ret void
  }

  declare void @llvm.dbg.value(metadata, metadata, metadata) #1

  attributes #0 = { noinline nounwind optnone }
  attributes #1 = { nocallback nofree nosync nounwind speculatable willreturn memory(none) }

  !llvm.module.flags = !{!0, !1}
  !llvm.ident = !{!2}
  !llvm.dbg.cu = !{!3}
  !llvm.debugify = !{!5, !5}

  !0 = !{i32 1, !"wchar_size", i32 4}
  !1 = !{i32 2, !"Debug Info Version", i32 3}
  !2 = !{!"clang"}
  !3 = distinct !DICompileUnit(language: DW_LANG_C, file: !4, producer: "debugify", isOptimized: true, runtimeVersion: 0, emissionKind: FullDebug)
  !4 = !DIFile(filename: "<stdin>", directory: "/")
  !5 = !{i32 1}
  !6 = distinct !DISubprogram(name: "func", linkageName: "func", scope: null, file: !4, line: 1, type: !7, scopeLine: 1, spFlags: DISPFlagDefinition | DISPFlagOptimized, unit: !3, retainedNodes: !9)
  !7 = !DISubroutineType(types: !8)
  !8 = !{}
  !9 = !{!10}
  !10 = !DILocalVariable(name: "1", scope: !6, file: !4, line: 1, type: !11)
  !11 = !DIBasicType(name: "ty32", size: 32, encoding: DW_ATE_unsigned)
  !12 = !DILocation(line: 1, column: 1, scope: !6)

...
---

# EXPR-NONE: debug-info-expression: '!DIExpression()'
# EXPR-NONE: DBG_VALUE 0, 0, ![[#]], !DIExpression(), debug-location ![[#]]

# EXPR-SOME: debug-info-expression: '!DIExpression(DW_OP_LLVM_arg, 0, DW_OP_dup, DW_OP_plus)'
# EXPR-SOME: DBG_VALUE 0, 0, ![[#]], !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_dup, DW_OP_plus), debug-location ![[#]]

name:            func
stack:
  # EXPR-ERR-STACK-INVALID-OP: <stdin>:[[#@LINE+4]]:45: invalid DWARF op 'DW_OP_foobar'
  # EXPR-ERR-STACK-INVALID-ATTR: <stdin>:[[#@LINE+3]]:45: invalid DWARF attribute encoding 'DW_ATE_foobar'
  # EXPR-ERR-STACK-INVALID-INT: <stdin>:[[#@LINE+2]]:45: expected unsigned integer
  - { id: 0, size: 4, debug-info-variable: '!10', debug-info-location: '!12',
      debug-info-expression: '!DIExpression(STACK_EXPR)' }
body:             |
  bb.0.entry:
    ; EXPR-ERR-BODY-INVALID-OP: <stdin>:[[#@LINE+3]]:40: invalid DWARF op 'DW_OP_foobar'
    ; EXPR-ERR-BODY-INVALID-ATTR: <stdin>:[[#@LINE+2]]:40: invalid DWARF attribute encoding 'DW_ATE_foobar'
    ; EXPR-ERR-BODY-INVALID-INT: <stdin>:[[#@LINE+1]]:40: expected unsigned integer
    DBG_VALUE 0, 0, !10, !DIExpression(BODY_EXPR), debug-location !12
...