llvm-6502/test/DebugInfo/Mips/delay-slot.ll
Duncan P. N. Exon Smith bf2040f00c 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.)

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@243774 91177308-0d34-0410-b5e6-96231b3b80d8
2015-07-31 18:58:39 +00:00

78 lines
3.2 KiB
LLVM

; RUN: llc -filetype=obj -O0 < %s -mtriple mips-unknown-linux-gnu | llvm-dwarfdump - | FileCheck %s
; PR19815
; Generated using clang -target mips-linux-gnu -g test.c -S -o - -flto|opt -sroa -S
; test.c:
;
; int foo(int x) {
; if (x)
; return 0;
; return 1;
; }
; CHECK: Address Line Column File ISA Discriminator Flags
; CHECK: ------------------ ------ ------ ------ --- ------------- -------------
; CHECK: 0x0000000000000000 1 0 1 0 0 is_stmt
; FIXME: The next address probably ought to be 0x0000000000000004 but there's
; a constant initialization before the prologue's end.
; CHECK: 0x0000000000000008 2 0 1 0 0 is_stmt prologue_end
; CHECK: 0x0000000000000028 3 0 1 0 0 is_stmt
; CHECK: 0x0000000000000038 4 0 1 0 0 is_stmt
; CHECK: 0x0000000000000048 5 0 1 0 0 is_stmt
; CHECK: 0x0000000000000058 5 0 1 0 0 is_stmt end_sequence
target datalayout = "E-m:m-p:32:32-i8:8:32-i16:16:32-i64:64-n32-S64"
target triple = "mips--linux-gnu"
; Function Attrs: nounwind
define i32 @foo(i32 %x) #0 {
entry:
call void @llvm.dbg.value(metadata i32 %x, i64 0, metadata !12, metadata !DIExpression()), !dbg !13
%tobool = icmp ne i32 %x, 0, !dbg !14
br i1 %tobool, label %if.then, label %if.end, !dbg !14
if.then: ; preds = %entry
br label %return, !dbg !16
if.end: ; preds = %entry
br label %return, !dbg !17
return: ; preds = %if.end, %if.then
%retval.0 = phi i32 [ 0, %if.then ], [ 1, %if.end ]
ret i32 %retval.0, !dbg !18
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
; Function Attrs: nounwind readnone
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) #1
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!llvm.ident = !{!11}
!0 = !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.5.0 ", isOptimized: false, emissionKind: 1, file: !1, enums: !2, retainedTypes: !2, subprograms: !3, globals: !2, imports: !2)
!1 = !DIFile(filename: "test.c", directory: "/tmp")
!2 = !{}
!3 = !{!4}
!4 = !DISubprogram(name: "foo", line: 1, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 1, file: !1, scope: !5, type: !6, function: i32 (i32)* @foo, variables: !2)
!5 = !DIFile(filename: "test.c", directory: "/tmp")
!6 = !DISubroutineType(types: !7)
!7 = !{!8, !8}
!8 = !DIBasicType(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 = !{!"clang version 3.5.0"}
!12 = !DILocalVariable(name: "x", line: 1, arg: 1, scope: !4, file: !5, type: !8)
!13 = !DILocation(line: 1, scope: !4)
!14 = !DILocation(line: 2, scope: !15)
!15 = distinct !DILexicalBlock(line: 2, column: 0, file: !1, scope: !4)
!16 = !DILocation(line: 3, scope: !15)
!17 = !DILocation(line: 4, scope: !4)
!18 = !DILocation(line: 5, scope: !4)