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DebugInfo: Fix testcases that fail -verify-debug-info=true

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As part of PR22777, fix testcases that fail the debug info verifier.
The changes fall into the following categories:

  - Empty `filename:` fields in `MDFile`s.  Compile units and some types
    require non-empty filenames.  A number of testcases have empty
    filenames, probably due to hand-reduction of testcases.
  - Not-quite empty arrays: `!{i32 0}`.  This used to be equivalent in
    the debug info schema to `!{}`.  They cause problems for
    `!MDSubroutineType`'s `types:` array, since it requires all operands
    to be valid types.  (Note that `!{null}` is the correct type array
    for functions that take no arguments and return `void`.)
  - Significantly bitrotted testcases.  Nodes got left behind a few
    upgrades ago because of missing or invalid tags.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@232415 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2015-03-16 21:10:12 +00:00
parent 30d7c8989b
commit 763e18696f
13 changed files with 53 additions and 56 deletions
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9
test/CodeGen/XCore/dwarf_debug.ll
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@@ -6,7 +6,7 @@
; CHECK-LABEL: f
; CHECK: entsp 2
; ...the prologue...
; CHECK: .loc 1 2 0 prologue_end # :2:0
; CHECK: .loc 1 2 0 prologue_end # test.c:2:0
; CHECK: add r0, r0, 1
; CHECK: retsp 2
define i32 @f(i32 %a) {
@@ -24,16 +24,15 @@ declare void @llvm.dbg.declare(metadata, metadata, metadata)
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!0 = !MDCompileUnit(language: DW_LANG_C99, isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
!1 = !MDFile(filename: "", directory: "")
!1 = !MDFile(filename: "test.c", directory: "")
!2 = !{}
!3 = !{!4}
!4 = !MDSubprogram(name: "f", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !5, type: !6, function: i32 (i32)* @f, variables: !2)
!5 = !MDFile(filename: "", directory: "")
!4 = !MDSubprogram(name: "f", line: 2, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 2, file: !1, scope: !1, type: !6, function: i32 (i32)* @f, variables: !2)
!6 = !MDSubroutineType(types: !7)
!7 = !{!8, !8}
!8 = !MDBasicType(tag: DW_TAG_base_type, name: "int", size: 32, align: 32, encoding: DW_ATE_signed)
!9 = !{i32 2, !"Dwarf Version", i32 4}
!10 = !{i32 2, !"Debug Info Version", i32 3}
!11 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "a", line: 2, arg: 1, scope: !4, file: !5, type: !8)
!11 = !MDLocalVariable(tag: DW_TAG_arg_variable, name: "a", line: 2, arg: 1, scope: !4, file: !1, type: !8)
!12 = !MDLocation(line: 2, scope: !4)