llvm-6502/test/DebugInfo/empty.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

32 lines
1.2 KiB
LLVM

; REQUIRES: object-emission
; RUN: %llc_dwarf < %s -filetype=obj | llvm-dwarfdump - | FileCheck %s
; RUN: %llc_dwarf -split-dwarf=Enable < %s -filetype=obj | llvm-dwarfdump - | FileCheck --check-prefix=FISSION %s
; darwin has a workaround for a linker bug so it always emits one line table entry
; XFAIL: darwin
; Expect no line table entry since there are no functions and file references in this compile unit
; CHECK: .debug_line contents:
; CHECK: Line table prologue:
; CHECK: total_length: 0x00000019
; CHECK-NOT: file_names[
; CHECK: .debug_pubnames contents:
; CHECK-NOT: Offset
; CHECK: .debug_pubtypes contents:
; CHECK-NOT: Offset
; Don't emit DW_AT_addr_base when there are no addresses.
; FISSION-NOT: DW_AT_GNU_addr_base [DW_FORM_sec_offset]
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!5}
!0 = metadata !{metadata !"0x11\0012\00clang version 3.1 (trunk 143523)\001\00\000\00\000", metadata !4, metadata !2, metadata !2, metadata !2, metadata !2, null} ; [ DW_TAG_compile_unit ]
!2 = metadata !{}
!3 = metadata !{metadata !"0x29", metadata !4} ; [ DW_TAG_file_type ]
!4 = metadata !{metadata !"empty.c", metadata !"/home/nlewycky"}
!5 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}