llvm-6502/test/DebugInfo/X86/dbg-at-specficiation.ll
Duncan P. N. Exon Smith 83902832de Revert "Revert "DI: Fold constant arguments into a single MDString""
This reverts commit r218918, effectively reapplying r218914 after fixing
an Ocaml bindings test and an Asan crash.  The root cause of the latter
was a tightened-up check in `DILexicalBlock::Verify()`, so I'll file a
PR to investigate who requires the loose check (and why).

Original commit message follows.

--

This patch addresses the first stage of PR17891 by folding constant
arguments together into a single MDString.  Integers are stringified and
a `\0` character is used as a separator.

Part of PR17891.

Note: I've attached my testcases upgrade scripts to the PR.  If I've
just broken your out-of-tree testcases, they might help.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@219010 91177308-0d34-0410-b5e6-96231b3b80d8
2014-10-03 20:01:09 +00:00

22 lines
1.2 KiB
LLVM

; RUN: llc < %s | FileCheck %s
; Radar 10147769
; Do not unnecessarily use AT_specification DIE.
; CHECK-NOT: AT_specification
@a = common global [10 x i32] zeroinitializer, align 16
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!12}
!0 = metadata !{metadata !"0x11\0012\00clang version 3.0 (trunk 140253)\001\00\000\00\000", metadata !11, metadata !2, metadata !2, metadata !2, metadata !3, null} ; [ DW_TAG_compile_unit ]
!2 = metadata !{}
!3 = metadata !{metadata !5}
!5 = metadata !{metadata !"0x34\00a\00a\00\001\000\001", null, metadata !6, metadata !7, [10 x i32]* @a, null} ; [ DW_TAG_variable ]
!6 = metadata !{metadata !"0x29", metadata !11} ; [ DW_TAG_file_type ]
!7 = metadata !{metadata !"0x1\00\000\00320\0032\000\000", null, null, metadata !8, metadata !9, i32 0, null, null, null} ; [ DW_TAG_array_type ] [line 0, size 320, align 32, offset 0] [from int]
!8 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ]
!9 = metadata !{metadata !10}
!10 = metadata !{metadata !"0x21\000\0010"} ; [ DW_TAG_subrange_type ]
!11 = metadata !{metadata !"x.c", metadata !"/private/tmp"}
!12 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}