DI: Remove DW_TAG_arg_variable and DW_TAG_auto_variable

Remove the fake `DW_TAG_auto_variable` and `DW_TAG_arg_variable` tags,
using `DW_TAG_variable` in their place Stop exposing the `tag:` field at
all in the assembly format for `DILocalVariable`.

Most of the testcase updates were generated by the following sed script:

    find test/ -name "*.ll" -o -name "*.mir" |
    xargs grep -l 'DILocalVariable' |
    xargs sed -i '' \
      -e 's/tag: DW_TAG_arg_variable, //' \
      -e 's/tag: DW_TAG_auto_variable, //'

There were only a handful of tests in `test/Assembly` that I needed to
update by hand.

(Note: a follow-up could change `DILocalVariable::DILocalVariable()` to
set the tag to `DW_TAG_formal_parameter` instead of `DW_TAG_variable`
(as appropriate), instead of having that logic magically in the backend
in `DbgVariable`.  I've added a FIXME to that effect.)

llvm-svn: 243774

1 files changed, 9 insertions, 9 deletions

diff --git a/llvm/test/CodeGen/ARM/debug-info-branch-folding.ll b/llvm/test/CodeGen/ARM/debug-info-branch-folding.ll
index 03b4d6b3815..5cfee318d8c 100644
--- a/llvm/test/CodeGen/ARM/debug-info-branch-folding.ll
+++ b/llvm/test/CodeGen/ARM/debug-info-branch-folding.ll
@@ -60,19 +60,19 @@ declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnon
 !15 = !DIFile(filename: "/Volumes/Lalgate/work/llvm/projects/llvm-test/SingleSource/UnitTests/Vector/helpers.h", directory: "/private/tmp")
 !16 = !DISubroutineType(types: !17)
 !17 = !{null}
-!18 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "a", line: 3, arg: 1, scope: !0, file: !1, type: !7)
-!19 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "argc", line: 59, arg: 1, scope: !10, file: !1, type: !13)
-!20 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "argv", line: 59, arg: 2, scope: !10, file: !1, type: !21)
+!18 = !DILocalVariable(name: "a", line: 3, arg: 1, scope: !0, file: !1, type: !7)
+!19 = !DILocalVariable(name: "argc", line: 59, arg: 1, scope: !10, file: !1, type: !13)
+!20 = !DILocalVariable(name: "argv", line: 59, arg: 2, scope: !10, file: !1, type: !21)
 !21 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, scope: !2, baseType: !22)
 !22 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, scope: !2, baseType: !23)
 !23 = !DIBasicType(tag: DW_TAG_base_type, name: "char", size: 8, align: 8, encoding: DW_ATE_signed_char)
-!24 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "i", line: 60, scope: !25, file: !1, type: !13)
+!24 = !DILocalVariable(name: "i", line: 60, scope: !25, file: !1, type: !13)
 !25 = distinct !DILexicalBlock(line: 59, column: 33, file: !1, scope: !10)
-!26 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "j", line: 60, scope: !25, file: !1, type: !13)
-!27 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "x", line: 61, scope: !25, file: !1, type: !5)
-!28 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "y", line: 62, scope: !25, file: !1, type: !5)
-!29 = !DILocalVariable(tag: DW_TAG_auto_variable, name: "z", line: 63, scope: !25, file: !1, type: !5)
-!30 = !DILocalVariable(tag: DW_TAG_arg_variable, name: "F", line: 41, arg: 1, scope: !14, file: !15, type: !31)
+!26 = !DILocalVariable(name: "j", line: 60, scope: !25, file: !1, type: !13)
+!27 = !DILocalVariable(name: "x", line: 61, scope: !25, file: !1, type: !5)
+!28 = !DILocalVariable(name: "y", line: 62, scope: !25, file: !1, type: !5)
+!29 = !DILocalVariable(name: "z", line: 63, scope: !25, file: !1, type: !5)
+!30 = !DILocalVariable(name: "F", line: 41, arg: 1, scope: !14, file: !15, type: !31)
 !31 = !DIDerivedType(tag: DW_TAG_pointer_type, size: 32, align: 32, scope: !2, baseType: !32)
 !32 = !DIDerivedType(tag: DW_TAG_typedef, name: "FV", line: 25, file: !55, scope: !2, baseType: !33)
 !33 = !DICompositeType(tag: DW_TAG_union_type, line: 22, size: 128, align: 128, file: !55, scope: !2, elements: !34)