llvm/test/DebugInfo/member-order.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

67 lines
3.6 KiB
LLVM

; REQUIRES: object-emission
; RUN: %llc_dwarf -filetype=obj -O0 < %s | llvm-dwarfdump -debug-dump=info - | FileCheck %s
; generated by clang from:
; struct foo {
; void f1();
; void f2();
; };
;
; void foo::f1() {
; }
; CHECK: DW_TAG_structure_type
; CHECK-NEXT: DW_AT_name {{.*}} "foo"
; CHECK-NOT: NULL
; CHECK: DW_TAG_subprogram
; CHECK-NOT: NULL
; CHECK: DW_AT_name {{.*}} "f1"
; CHECK: DW_TAG_subprogram
; CHECK-NOT: NULL
; CHECK: DW_AT_name {{.*}} "f2"
%struct.foo = type { i8 }
; Function Attrs: nounwind uwtable
define void @_ZN3foo2f1Ev(%struct.foo* %this) #0 align 2 {
entry:
%this.addr = alloca %struct.foo*, align 8
store %struct.foo* %this, %struct.foo** %this.addr, align 8
call void @llvm.dbg.declare(metadata !{%struct.foo** %this.addr}, metadata !16, metadata !{metadata !"0x102"}), !dbg !18
%this1 = load %struct.foo** %this.addr
ret void, !dbg !19
}
; Function Attrs: nounwind readnone
declare void @llvm.dbg.declare(metadata, metadata, metadata) #1
attributes #0 = { nounwind uwtable "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 = { nounwind readnone }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!15, !20}
!0 = metadata !{metadata !"0x11\004\00clang version 3.4 \000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !13, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/member-order.cpp] [DW_LANG_C_plus_plus]
!1 = metadata !{metadata !"member-order.cpp", metadata !"/tmp/dbginfo"}
!2 = metadata !{}
!3 = metadata !{metadata !4}
!4 = metadata !{metadata !"0x13\00foo\001\008\008\000\000\000", metadata !1, null, null, metadata !5, null, null, metadata !"_ZTS3foo"} ; [ DW_TAG_structure_type ] [foo] [line 1, size 8, align 8, offset 0] [def] [from ]
!5 = metadata !{metadata !6, metadata !11}
!6 = metadata !{metadata !"0x2e\00f1\00f1\00_ZN3foo2f1Ev\002\000\000\000\006\00256\000\002", metadata !1, metadata !4, metadata !7, null, null, null, i32 0, metadata !10} ; [ DW_TAG_subprogram ] [line 2] [f1]
!7 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !8, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!8 = metadata !{null, metadata !9}
!9 = metadata !{metadata !"0xf\00\000\0064\0064\000\001088", null, null, metadata !"_ZTS3foo"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [artificial] [from _ZTS3foo]
!10 = metadata !{i32 786468}
!11 = metadata !{metadata !"0x2e\00f2\00f2\00_ZN3foo2f2Ev\003\000\000\000\006\00256\000\003", metadata !1, metadata !4, metadata !7, null, null, null, i32 0, metadata !12} ; [ DW_TAG_subprogram ] [line 3] [f2]
!12 = metadata !{i32 786468}
!13 = metadata !{metadata !14}
!14 = metadata !{metadata !"0x2e\00f1\00f1\00_ZN3foo2f1Ev\006\000\001\000\006\00256\000\006", metadata !1, null, metadata !7, null, void (%struct.foo*)* @_ZN3foo2f1Ev, null, metadata !6, metadata !2} ; [ DW_TAG_subprogram ] [line 6] [def] [f1]
!15 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!16 = metadata !{metadata !"0x101\00this\0016777216\001088", metadata !14, null, metadata !17} ; [ DW_TAG_arg_variable ] [this] [line 0]
!17 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", null, null, metadata !"_ZTS3foo"} ; [ DW_TAG_pointer_type ] [line 0, size 64, align 64, offset 0] [from _ZTS3foo]
!18 = metadata !{i32 0, i32 0, metadata !14, null}
!19 = metadata !{i32 7, i32 0, metadata !14, null}
!20 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}