llvm/test/DebugInfo/2009-11-03-InsertExtractValue.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

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1.0 KiB
LLVM

; RUN: llvm-as < %s | llvm-dis | FileCheck %s
!llvm.dbg.sp = !{!0}
!llvm.dbg.cu = !{!5}
!llvm.module.flags = !{!6}
!0 = metadata !{metadata !"0x2e\00bar\00bar\00_ZN3foo3barEv\003\000\000\000\006\00258\000\003", metadata !4, metadata !1, metadata !2, null, null, null, i32 0, metadata !1} ; [ DW_TAG_subprogram ]
!1 = metadata !{metadata !"0x29", metadata !4} ; [ DW_TAG_file_type ]
!2 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !4, metadata !1, null, metadata !3, null} ; [ DW_TAG_subroutine_type ]
!3 = metadata !{null}
!4 = metadata !{metadata !"/foo", metadata !"bar.cpp"}
!5 = metadata !{metadata !"0x11\0012\00\001\00\000\00\000", metadata !4, metadata !3, metadata !3, null, null, null}; [DW_TAG_compile_unit ]
define <{i32, i32}> @f1() {
; CHECK: !dbgx ![[NUMBER:[0-9]+]]
%r = insertvalue <{ i32, i32 }> zeroinitializer, i32 4, 1, !dbgx !1
; CHECK: !dbgx ![[NUMBER]]
%e = extractvalue <{ i32, i32 }> %r, 0, !dbgx !1
ret <{ i32, i32 }> %r
}
; CHECK: [protected]
!6 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}