llvm-6502/test/DebugInfo/AArch64/dwarfdump.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

41 lines
2.2 KiB
LLVM

; RUN: llc -mtriple=aarch64-non-linux-gnu -dwarf-version=4 < %s -filetype=obj \
; RUN: | llvm-dwarfdump - | FileCheck -check-prefix=CHECK -check-prefix=CHECK-4 %s
; RUN: llc -mtriple=aarch64-non-linux-gnu -dwarf-version=3 < %s -filetype=obj \
; RUN: | llvm-dwarfdump - | FileCheck -check-prefix=CHECK -check-prefix=CHECK-3 %s
; We're mostly checking that relocations are applied correctly
; here. Currently R_AARCH64_ABS32 is used for references to debug data
; and R_AARCH64_ABS64 is used for program addresses.
; A couple of ABS32s, both at 0 and elsewhere, interpreted correctly:
; CHECK: DW_AT_producer [DW_FORM_strp] ( .debug_str[0x00000000] = "clang version 3.3 ")
; CHECK: DW_AT_name [DW_FORM_strp] ( .debug_str[0x00000013] = "tmp.c")
; A couple of ABS64s similarly:
; CHECK: DW_AT_low_pc [DW_FORM_addr] (0x0000000000000000)
; CHECK-4: DW_AT_high_pc [DW_FORM_data4] (0x00000008)
; CHECK-3: DW_AT_high_pc [DW_FORM_addr] (0x0000000000000008)
define i32 @main() nounwind {
ret i32 0, !dbg !8
}
attributes #0 = { nounwind }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!10}
!0 = metadata !{metadata !"0x11\0012\00clang version 3.3 \000\00\000\00\000", metadata !9, metadata !1, metadata !1, metadata !2, metadata !1, metadata !1} ; [ DW_TAG_compile_unit ] [/home/timnor01/llvm/build/tmp.c] [DW_LANG_C99]
!1 = metadata !{}
!2 = metadata !{metadata !3}
!3 = metadata !{metadata !"0x2e\00main\00main\00\001\000\001\000\006\000\000\001", metadata !9, metadata !4, metadata !5, null, i32 ()* @main, null, null, metadata !1} ; [ DW_TAG_subprogram ] [line 1] [def] [main]
!4 = metadata !{metadata !"0x29", metadata !9} ; [ DW_TAG_file_type ]
!5 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", null, null, null, metadata !6, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!6 = metadata !{metadata !7}
!7 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, null} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!8 = metadata !{i32 2, i32 0, metadata !3, null}
!9 = metadata !{metadata !"tmp.c", metadata !"/home/tim/llvm/build"}
!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}