mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-26 14:33:02 +02:00
0c1aee0b16
As a follow-up to r246098, require `DISubprogram` definitions
(`isDefinition: true`) to be 'distinct'. Specifically, add an assembler
check, a verifier check, and bitcode upgrading logic to combat testcase
bitrot after the `DIBuilder` change.
While working on the testcases, I realized that
test/Linker/subprogram-linkonce-weak-odr.ll isn't relevant anymore. Its
purpose was to check for a corner case in PR22792 where two subprogram
definitions match exactly and share the same metadata node. The new
verifier check, requiring that subprogram definitions are 'distinct',
precludes that possibility.
I updated almost all the IR with the following script:
git grep -l -E -e '= !DISubprogram\(.* isDefinition: true' |
grep -v test/Bitcode |
xargs sed -i '' -e 's/= \(!DISubprogram(.*, isDefinition: true\)/= distinct \1/'
Likely some variant of would work for out-of-tree testcases.
llvm-svn: 246327
35 lines
1.7 KiB
LLVM
35 lines
1.7 KiB
LLVM
; RUN: llc %s -mtriple=x86_64-pc-linux-gnu -O0 -o - | FileCheck %s
|
|
|
|
; We are testing that a value in a 16 bit register gets reported as
|
|
; being in its superregister.
|
|
|
|
; CHECK: .byte 80 # super-register DW_OP_reg0
|
|
; CHECK-NEXT: .byte 147 # DW_OP_piece
|
|
; CHECK-NEXT: .byte 2 # 2
|
|
|
|
define i16 @f(i16 signext %zzz) nounwind {
|
|
entry:
|
|
call void @llvm.dbg.value(metadata i16 %zzz, i64 0, metadata !0, metadata !DIExpression()), !dbg !DILocation(scope: !1)
|
|
%conv = sext i16 %zzz to i32, !dbg !7
|
|
%conv1 = trunc i32 %conv to i16
|
|
ret i16 %conv1
|
|
}
|
|
|
|
declare void @llvm.dbg.value(metadata, i64, metadata, metadata) nounwind readnone
|
|
|
|
!llvm.dbg.cu = !{!3}
|
|
!llvm.module.flags = !{!11}
|
|
!9 = !{!1}
|
|
|
|
!0 = !DILocalVariable(name: "zzz", line: 3, arg: 1, scope: !1, file: !2, type: !6)
|
|
!1 = distinct !DISubprogram(name: "f", line: 3, isLocal: false, isDefinition: true, virtualIndex: 6, flags: DIFlagPrototyped, isOptimized: false, scopeLine: 3, file: !10, scope: !2, type: !4, function: i16 (i16)* @f)
|
|
!2 = !DIFile(filename: "/home/espindola/llvm/test.c", directory: "/home/espindola/tmpfs/build")
|
|
!3 = distinct !DICompileUnit(language: DW_LANG_C99, producer: "clang version 3.0 ()", isOptimized: false, emissionKind: 1, file: !10, enums: !{}, retainedTypes: !{}, subprograms: !9, imports: null)
|
|
!4 = !DISubroutineType(types: !5)
|
|
!5 = !{null}
|
|
!6 = !DIBasicType(tag: DW_TAG_base_type, name: "short", size: 16, align: 16, encoding: DW_ATE_signed)
|
|
!7 = !DILocation(line: 4, column: 22, scope: !8)
|
|
!8 = distinct !DILexicalBlock(line: 3, column: 19, file: !10, scope: !1)
|
|
!10 = !DIFile(filename: "/home/espindola/llvm/test.c", directory: "/home/espindola/tmpfs/build")
|
|
!11 = !{i32 1, !"Debug Info Version", i32 3}
|