llvm-6502/test/Linker/type-unique-odr-b.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

87 lines
4.7 KiB
LLVM

; RUN: true
; This file belongs to type-unique-odr-a.ll.
;
; Test ODR-based type uniquing for C++ class members.
; rdar://problem/15851313.
;
; $ cat -n type-unique-odr-b.cpp
; 1 // Make this declaration start on a different line.
; 2 class A {
; 3 int data;
; 4 protected:
; 5 void getFoo();
; 6 };
; 7
; 8 void A::getFoo() {}
; 9
; 10 static void bar() {}
; 11 void f() { bar(); };
; ModuleID = 'type-unique-odr-b.cpp'
%class.A = type { i32 }
; Function Attrs: nounwind
define void @_ZN1A6getFooEv(%class.A* %this) #0 align 2 {
entry:
%this.addr = alloca %class.A*, align 8
store %class.A* %this, %class.A** %this.addr, align 8
call void @llvm.dbg.declare(metadata !{%class.A** %this.addr}, metadata !24, metadata !{metadata !"0x102"}), !dbg !26
%this1 = load %class.A** %this.addr
ret void, !dbg !27
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
; Function Attrs: nounwind
define void @_Z1fv() #0 {
entry:
call void @_ZL3barv(), !dbg !28
ret void, !dbg !28
}
; Function Attrs: nounwind
define internal void @_ZL3barv() #0 {
entry:
ret void, !dbg !29
}
attributes #0 = { nounwind }
attributes #1 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!21, !22}
!llvm.ident = !{!23}
!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 \000\00\000\00\001", metadata !1, metadata !2, metadata !3, metadata !14, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [<unknown>] [DW_LANG_C_plus_plus]
!1 = metadata !{metadata !"<unknown>", metadata !""}
!2 = metadata !{}
!3 = metadata !{metadata !4}
!4 = metadata !{metadata !"0x2\00A\002\0032\0032\000\000\000", metadata !5, null, null, metadata !6, null, null, metadata !"_ZTS1A"} ; [ DW_TAG_class_type ] [A] [line 2, size 32, align 32, offset 0] [def] [from ]
!5 = metadata !{metadata !"type-unique-odr-b.cpp", metadata !""}
!6 = metadata !{metadata !7, metadata !9}
!7 = metadata !{metadata !"0xd\00data\003\0032\0032\000\001", metadata !5, metadata !"_ZTS1A", metadata !8} ; [ DW_TAG_member ] [data] [line 3, size 32, align 32, offset 0] [private] [from int]
!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 !{metadata !"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\005\000\000\000\006\00258\000\005", metadata !5, metadata !"_ZTS1A", metadata !10, null, null, null, i32 0, metadata !13} ; [ DW_TAG_subprogram ] [line 5] [protected] [getFoo]
!10 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !11, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!11 = metadata !{null, metadata !12}
!12 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS1A]
!13 = metadata !{i32 786468}
!14 = metadata !{metadata !15, metadata !16, metadata !20}
!15 = metadata !{metadata !"0x2e\00getFoo\00getFoo\00_ZN1A6getFooEv\008\000\001\000\006\00256\000\008", metadata !5, metadata !"_ZTS1A", metadata !10, null, void (%class.A*)* @_ZN1A6getFooEv, null, metadata !9, metadata !2} ; [ DW_TAG_subprogram ] [line 8] [def] [getFoo]
!16 = metadata !{metadata !"0x2e\00f\00f\00_Z1fv\0011\000\001\000\006\00256\000\0011", metadata !5, metadata !17, metadata !18, null, void ()* @_Z1fv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 11] [def] [f]
!17 = metadata !{metadata !"0x29", metadata !5} ; [ DW_TAG_file_type ] [type-unique-odr-b.cpp]
!18 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !19, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!19 = metadata !{null}
!20 = metadata !{metadata !"0x2e\00bar\00bar\00_ZL3barv\0010\001\001\000\006\00256\000\0010", metadata !5, metadata !17, metadata !18, null, void ()* @_ZL3barv, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 10] [local] [def] [bar]
!21 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!22 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}
!23 = metadata !{metadata !"clang version 3.5.0 "}
!24 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !15, null, metadata !25} ; [ DW_TAG_arg_variable ] [this] [line 0]
!25 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS1A"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS1A]
!26 = metadata !{i32 0, i32 0, metadata !15, null}
!27 = metadata !{i32 8, i32 0, metadata !15, null}
!28 = metadata !{i32 11, i32 0, metadata !16, null}
!29 = metadata !{i32 10, i32 0, metadata !20, null}