llvm-6502/test/MC/ELF/cfi-version.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

46 lines
2.6 KiB
LLVM

; RUN: %llc_dwarf %s -o - -dwarf-version 2 -filetype=obj | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF2
; RUN: %llc_dwarf %s -o - -dwarf-version 3 -filetype=obj | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF34
; RUN: %llc_dwarf %s -o - -dwarf-version 4 -filetype=obj | llvm-dwarfdump - | FileCheck %s --check-prefix=DWARF34
; .debug_frame is not emitted for targeting Windows x64.
; REQUIRES: debug_frame
; Function Attrs: nounwind
define i32 @foo() #0 {
entry:
%call = call i32 bitcast (i32 (...)* @bar to i32 ()*)(), !dbg !12
%add = add nsw i32 %call, 1, !dbg !12
ret i32 %add, !dbg !12
}
declare i32 @bar(...) #1
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
attributes #1 = { "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9, !10}
!llvm.ident = !{!11}
!0 = metadata !{metadata !"0x11\0012\00clang version 3.5.0 \000\00\000\00\001", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/test.c] [DW_LANG_C99]
!1 = metadata !{metadata !"test.c", metadata !"/tmp"}
!2 = metadata !{}
!3 = metadata !{metadata !4}
!4 = metadata !{metadata !"0x2e\00foo\00foo\00\002\000\001\000\006\00256\000\002", metadata !1, metadata !5, metadata !6, null, i32 ()* @foo, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 2] [def] [foo]
!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/test.c]
!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!7 = metadata !{metadata !8}
!8 = 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]
!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
!11 = metadata !{metadata !"clang version 3.5.0 "}
!12 = metadata !{i32 2, i32 0, metadata !4, null}
; DWARF2: .debug_frame contents:
; DWARF2: Version: 1
; DWARF2-NEXT: Augmentation:
; DWARF34: .debug_frame contents:
; DWARF34: Version: 3
; DWARF34-NEXT: Augmentation: