llvm/test/DebugInfo/inheritance.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

155 lines
11 KiB
LLVM

; RUN: llc %s -o /dev/null
; PR 2613.
%struct.__class_type_info_pseudo = type { %struct.__type_info_pseudo }
%struct.__type_info_pseudo = type { i8*, i8* }
%struct.test1 = type { i32 (...)** }
@_ZTV5test1 = weak_odr constant [4 x i32 (...)*] [i32 (...)* null, i32 (...)* bitcast (%struct.__class_type_info_pseudo* @_ZTI5test1 to i32 (...)*), i32 (...)* bitcast (void (%struct.test1*)* @_ZN5test1D1Ev to i32 (...)*), i32 (...)* bitcast (void (%struct.test1*)* @_ZN5test1D0Ev to i32 (...)*)], align 32 ; <[4 x i32 (...)*]*> [#uses=1]
@_ZTI5test1 = weak_odr constant %struct.__class_type_info_pseudo { %struct.__type_info_pseudo { i8* inttoptr (i64 add (i64 ptrtoint ([0 x i32 (...)*]* @_ZTVN10__cxxabiv117__class_type_infoE to i64), i64 16) to i8*), i8* getelementptr inbounds ([7 x i8]* @_ZTS5test1, i64 0, i64 0) } }, align 16 ; <%struct.__class_type_info_pseudo*> [#uses=1]
@_ZTVN10__cxxabiv117__class_type_infoE = external constant [0 x i32 (...)*] ; <[0 x i32 (...)*]*> [#uses=1]
@_ZTS5test1 = weak_odr constant [7 x i8] c"5test1\00" ; <[7 x i8]*> [#uses=2]
define i32 @main() nounwind ssp {
entry:
%retval = alloca i32 ; <i32*> [#uses=2]
%0 = alloca i32 ; <i32*> [#uses=2]
%tst = alloca %struct.test1 ; <%struct.test1*> [#uses=1]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.declare(metadata !{%struct.test1* %tst}, metadata !0, metadata !{metadata !"0x102"}), !dbg !21
call void @_ZN5test1C1Ev(%struct.test1* %tst) nounwind, !dbg !22
store i32 0, i32* %0, align 4, !dbg !23
%1 = load i32* %0, align 4, !dbg !23 ; <i32> [#uses=1]
store i32 %1, i32* %retval, align 4, !dbg !23
br label %return, !dbg !23
return: ; preds = %entry
%retval1 = load i32* %retval, !dbg !23 ; <i32> [#uses=1]
ret i32 %retval1, !dbg !23
}
define linkonce_odr void @_ZN5test1C1Ev(%struct.test1* %this) nounwind ssp align 2 {
entry:
%this_addr = alloca %struct.test1* ; <%struct.test1**> [#uses=2]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.declare(metadata !{%struct.test1** %this_addr}, metadata !24, metadata !{metadata !"0x102"}), !dbg !28
store %struct.test1* %this, %struct.test1** %this_addr
%0 = load %struct.test1** %this_addr, align 8, !dbg !28 ; <%struct.test1*> [#uses=1]
%1 = getelementptr inbounds %struct.test1* %0, i32 0, i32 0, !dbg !28 ; <i32 (...)***> [#uses=1]
store i32 (...)** getelementptr inbounds ([4 x i32 (...)*]* @_ZTV5test1, i64 0, i64 2), i32 (...)*** %1, align 8, !dbg !28
br label %return, !dbg !28
return: ; preds = %entry
ret void, !dbg !29
}
declare void @llvm.dbg.declare(metadata, metadata, metadata) nounwind readnone
define linkonce_odr void @_ZN5test1D1Ev(%struct.test1* %this) nounwind ssp align 2 {
entry:
%this_addr = alloca %struct.test1* ; <%struct.test1**> [#uses=3]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.declare(metadata !{%struct.test1** %this_addr}, metadata !32, metadata !{metadata !"0x102"}), !dbg !34
store %struct.test1* %this, %struct.test1** %this_addr
%0 = load %struct.test1** %this_addr, align 8, !dbg !35 ; <%struct.test1*> [#uses=1]
%1 = getelementptr inbounds %struct.test1* %0, i32 0, i32 0, !dbg !35 ; <i32 (...)***> [#uses=1]
store i32 (...)** getelementptr inbounds ([4 x i32 (...)*]* @_ZTV5test1, i64 0, i64 2), i32 (...)*** %1, align 8, !dbg !35
br label %bb, !dbg !37
bb: ; preds = %entry
%2 = trunc i32 0 to i8, !dbg !37 ; <i8> [#uses=1]
%toBool = icmp ne i8 %2, 0, !dbg !37 ; <i1> [#uses=1]
br i1 %toBool, label %bb1, label %bb2, !dbg !37
bb1: ; preds = %bb
%3 = load %struct.test1** %this_addr, align 8, !dbg !37 ; <%struct.test1*> [#uses=1]
%4 = bitcast %struct.test1* %3 to i8*, !dbg !37 ; <i8*> [#uses=1]
call void @_ZdlPv(i8* %4) nounwind, !dbg !37
br label %bb2, !dbg !37
bb2: ; preds = %bb1, %bb
br label %return, !dbg !37
return: ; preds = %bb2
ret void, !dbg !37
}
define linkonce_odr void @_ZN5test1D0Ev(%struct.test1* %this) nounwind ssp align 2 {
entry:
%this_addr = alloca %struct.test1* ; <%struct.test1**> [#uses=3]
%"alloca point" = bitcast i32 0 to i32 ; <i32> [#uses=0]
call void @llvm.dbg.declare(metadata !{%struct.test1** %this_addr}, metadata !38, metadata !{metadata !"0x102"}), !dbg !40
store %struct.test1* %this, %struct.test1** %this_addr
%0 = load %struct.test1** %this_addr, align 8, !dbg !41 ; <%struct.test1*> [#uses=1]
%1 = getelementptr inbounds %struct.test1* %0, i32 0, i32 0, !dbg !41 ; <i32 (...)***> [#uses=1]
store i32 (...)** getelementptr inbounds ([4 x i32 (...)*]* @_ZTV5test1, i64 0, i64 2), i32 (...)*** %1, align 8, !dbg !41
br label %bb, !dbg !43
bb: ; preds = %entry
%2 = trunc i32 1 to i8, !dbg !43 ; <i8> [#uses=1]
%toBool = icmp ne i8 %2, 0, !dbg !43 ; <i1> [#uses=1]
br i1 %toBool, label %bb1, label %bb2, !dbg !43
bb1: ; preds = %bb
%3 = load %struct.test1** %this_addr, align 8, !dbg !43 ; <%struct.test1*> [#uses=1]
%4 = bitcast %struct.test1* %3 to i8*, !dbg !43 ; <i8*> [#uses=1]
call void @_ZdlPv(i8* %4) nounwind, !dbg !43
br label %bb2, !dbg !43
bb2: ; preds = %bb1, %bb
br label %return, !dbg !43
return: ; preds = %bb2
ret void, !dbg !43
}
declare void @_ZdlPv(i8*) nounwind
!0 = metadata !{metadata !"0x100\00tst\0013\000", metadata !1, metadata !4, metadata !8} ; [ DW_TAG_auto_variable ]
!1 = metadata !{metadata !"0xb\000\000\000", metadata !44, metadata !2} ; [ DW_TAG_lexical_block ]
!2 = metadata !{metadata !"0xb\000\000\000", metadata !44, metadata !3} ; [ DW_TAG_lexical_block ]
!3 = metadata !{metadata !"0x2e\00main\00main\00main\0011\000\001\000\006\000\000\000", i32 0, metadata !4, metadata !5, null, null, null, null, null} ; [ DW_TAG_subprogram ]
!4 = metadata !{metadata !"0x11\004\004.2.1 (Based on Apple Inc. build 5658) (LLVM build)\001\00\000\00\000", metadata !44, metadata !45, metadata !45, null, null, null} ; [ DW_TAG_compile_unit ]
!5 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !4, null, null, metadata !6, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!6 = metadata !{metadata !7}
!7 = metadata !{metadata !"0x24\00int\000\0032\0032\000\000\005", null, metadata !4} ; [ DW_TAG_base_type ]
!8 = metadata !{metadata !"0x13\00test1\001\0064\0064\000\000\000", metadata !44, metadata !4, null, metadata !9, metadata !8, null, null} ; [ DW_TAG_structure_type ] [test1] [line 1, size 64, align 64, offset 0] [def] [from ]
!9 = metadata !{metadata !10, metadata !14, metadata !18}
!10 = metadata !{metadata !"0xd\00_vptr$test1\001\0064\0064\000\000", metadata !44, metadata !8, metadata !11} ; [ DW_TAG_member ]
!11 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", metadata !4, null, metadata !12} ; [ DW_TAG_pointer_type ]
!12 = metadata !{metadata !"0xf\00__vtbl_ptr_type\000\000\000\000\000", null, metadata !4, metadata !5} ; [ DW_TAG_pointer_type ]
!13 = metadata !{metadata !"0x11\004\004.2.1 (Based on Apple Inc. build 5658) (LLVM build)\000\00\000\00\000", metadata !46, metadata !45, metadata !45, null, null, null} ; [ DW_TAG_compile_unit ]
!14 = metadata !{metadata !"0x2e\00test1\00test1\00\001\000\000\000\006\001\000\000", i32 0, metadata !8, metadata !15, null, null, null, null, null} ; [ DW_TAG_subprogram ]
!15 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !4, null, null, metadata !16, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!16 = metadata !{null, metadata !17}
!17 = metadata !{metadata !"0xf\00\000\0064\0064\000\0064", metadata !4, null, metadata !8} ; [ DW_TAG_pointer_type ]
!18 = metadata !{metadata !"0x2e\00~test1\00~test1\00\004\000\000\001\006\000\000\000", i32 0, metadata !8, metadata !19, metadata !8, null, null, null, null} ; [ DW_TAG_subprogram ]
!19 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", metadata !4, null, null, metadata !20, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!20 = metadata !{null, metadata !17, metadata !7}
!21 = metadata !{i32 11, i32 0, metadata !1, null}
!22 = metadata !{i32 13, i32 0, metadata !1, null}
!23 = metadata !{i32 14, i32 0, metadata !1, null}
!24 = metadata !{metadata !"0x101\00this\0013\000", metadata !25, metadata !4, metadata !26} ; [ DW_TAG_arg_variable ]
!25 = metadata !{metadata !"0x2e\00test1\00test1\00_ZN5test1C1Ev\001\000\001\000\006\000\000\000", i32 0, metadata !4, metadata !15, null, null, null, null, null} ; [ DW_TAG_subprogram ]
!26 = metadata !{metadata !"0x26\00\000\0064\0064\000\0064", metadata !4, null, metadata !27} ; [ DW_TAG_const_type ]
!27 = metadata !{metadata !"0xf\00\000\0064\0064\000\000", metadata !4, null, metadata !8} ; [ DW_TAG_pointer_type ]
!28 = metadata !{i32 1, i32 0, metadata !25, null}
!29 = metadata !{i32 1, i32 0, metadata !30, null}
!30 = metadata !{metadata !"0xb\000\000\000", metadata !44, metadata !31} ; [ DW_TAG_lexical_block ]
!31 = metadata !{metadata !"0xb\000\000\000", metadata !44, metadata !25} ; [ DW_TAG_lexical_block ]
!32 = metadata !{metadata !"0x101\00this\004\000", metadata !33, metadata !4, metadata !26} ; [ DW_TAG_arg_variable ]
!33 = metadata !{metadata !"0x2e\00~test1\00~test1\00_ZN5test1D1Ev\004\000\001\001\006\000\000\000", i32 0, metadata !8, metadata !15, metadata !8, null, null, null, null} ; [ DW_TAG_subprogram ]
!34 = metadata !{i32 4, i32 0, metadata !33, null}
!35 = metadata !{i32 5, i32 0, metadata !36, null}
!36 = metadata !{metadata !"0xb\000\000\000", metadata !44, metadata !33} ; [ DW_TAG_lexical_block ]
!37 = metadata !{i32 6, i32 0, metadata !36, null}
!38 = metadata !{metadata !"0x101\00this\004\000", metadata !39, metadata !4, metadata !26} ; [ DW_TAG_arg_variable ]
!39 = metadata !{metadata !"0x2e\00~test1\00~test1\00_ZN5test1D0Ev\004\000\001\001\006\000\000\000", i32 0, metadata !8, metadata !15, metadata !8, null, null, null, null} ; [ DW_TAG_subprogram ]
!40 = metadata !{i32 4, i32 0, metadata !39, null}
!41 = metadata !{i32 5, i32 0, metadata !42, null}
!42 = metadata !{metadata !"0xb\000\000\000", metadata !44, metadata !39} ; [ DW_TAG_lexical_block ]
!43 = metadata !{i32 6, i32 0, metadata !42, null}
!44 = metadata !{metadata !"inheritance.cpp", metadata !"/tmp/"}
!45 = metadata !{i32 0}
!46 = metadata !{metadata !"<built-in>", metadata !"/tmp/"}