llvm-6502/test/CodeGen/X86/dwarf-comp-dir.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 -o %t -filetype=obj
; RUN: llvm-dwarfdump -debug-dump=line %t | FileCheck %s
target datalayout = "e-p:64:64:64-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-v64:64:64-v128:128:128-a0:0:64-s0:64:64-f80:128:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
!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 !7, 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"}
!6 = metadata !{metadata !"0x13\00foo\001\008\008\000\000\000", metadata !4, null, null, metadata !2, null, null, metadata !"_ZTS3foo"} ; [ DW_TAG_structure_type ] [foo] [line 1, size 8, align 8, offset 0] [def] [from ]
!7 = metadata !{metadata !6}
; The important part of the following check is that dir = #0.
; Dir Mod Time File Len File Name
; ---- ---------- ---------- ---------------------------
; CHECK: file_names[ 1] 0 0x00000000 0x00000000 empty.c
!5 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}