llvm/test/Transforms/GCOVProfiling/linkagename.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

30 lines
1.3 KiB
LLVM

; RUN: echo '!9 = metadata !{metadata !"%T/linkagename.ll", metadata !0}' > %t1
; RUN: cat %s %t1 > %t2
; RUN: opt -insert-gcov-profiling -disable-output < %t2
; RUN: grep _Z3foov %T/linkagename.gcno
; RUN: rm %T/linkagename.gcno
; REQUIRES: shell
define void @_Z3foov() {
entry:
ret void, !dbg !8
}
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!10}
!llvm.gcov = !{!9}
!0 = metadata !{metadata !"0x11\004\00clang version 3.3 (trunk 177323)\000\00\000\00\000", metadata !2, metadata !3, metadata !3, metadata !4, metadata !3, metadata !3} ; [ DW_TAG_compile_unit ] [/home/nlewycky/hello.cc] [DW_LANG_C_plus_plus]
!1 = metadata !{metadata !"0x29", metadata !2} ; [ DW_TAG_file_type ] [/home/nlewycky/hello.cc]
!2 = metadata !{metadata !"hello.cc", metadata !"/home/nlewycky"}
!3 = metadata !{i32 0}
!4 = metadata !{metadata !5}
!5 = metadata !{metadata !"0x2e\00foo\00foo\00_Z3foov\001\000\001\000\006\00256\000\001", metadata !1, metadata !1, metadata !6, null, void ()* @_Z3foov, null, null, metadata !3} ; [ DW_TAG_subprogram ] [line 1] [def] [foo]
!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!7 = metadata !{null}
!8 = metadata !{i32 1, i32 0, metadata !5, null}
!10 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}