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Revert "Revert "DI: Fold constant arguments into a single MDString""

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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
This commit is contained in:
Duncan P. N. Exon Smith
2014-10-03 20:01:09 +00:00
parent 726942c8bb
commit 83902832de
354 changed files with 6825 additions and 6716 deletions
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24
test/DebugInfo/namespace_inline_function_definition.ll
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@ -42,7 +42,7 @@ entry:
store i32 0, i32* %retval
%0 = load i32* @x, align 4, !dbg !16
store i32 %0, i32* %i.addr.i, align 4
call void @llvm.dbg.declare(metadata !{i32* %i.addr.i}, metadata !17, metadata !{i32 786690}), !dbg !18
call void @llvm.dbg.declare(metadata !{i32* %i.addr.i}, metadata !17, metadata !{metadata !"0x102"}), !dbg !18
%1 = load i32* %i.addr.i, align 4, !dbg !18
%mul.i = mul nsw i32 %1, 2, !dbg !18
ret i32 %mul.i, !dbg !16
@ -53,7 +53,7 @@ define i32 @_ZN2ns4funcEi(i32 %i) #1 {
entry:
%i.addr = alloca i32, align 4
store i32 %i, i32* %i.addr, align 4
call void @llvm.dbg.declare(metadata !{i32* %i.addr}, metadata !17, metadata !{i32 786690}), !dbg !19
call void @llvm.dbg.declare(metadata !{i32* %i.addr}, metadata !17, metadata !{metadata !"0x102"}), !dbg !19
%0 = load i32* %i.addr, align 4, !dbg !19
%mul = mul nsw i32 %0, 2, !dbg !19
ret i32 %mul, !dbg !19
@ -70,23 +70,23 @@ attributes #2 = { nounwind readnone }
!llvm.module.flags = !{!13, !14}
!llvm.ident = !{!15}
!0 = metadata !{i32 786449, metadata !1, i32 4, metadata !"clang version 3.5.0 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/namespace_inline_function_definition.cpp] [DW_LANG_C_plus_plus]
!0 = metadata !{metadata !"0x11\004\00clang version 3.5.0 \000\00\000\00\001", metadata !1, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2} ; [ DW_TAG_compile_unit ] [/tmp/dbginfo/namespace_inline_function_definition.cpp] [DW_LANG_C_plus_plus]
!1 = metadata !{metadata !"namespace_inline_function_definition.cpp", metadata !"/tmp/dbginfo"}
!2 = metadata !{}
!3 = metadata !{metadata !4, metadata !9}
!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 5, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 ()* @main, null, null, metadata !2, i32 5} ; [ DW_TAG_subprogram ] [line 5] [def] [main]
!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/namespace_inline_function_definition.cpp]
!6 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!4 = metadata !{metadata !"0x2e\00main\00main\00\005\000\001\000\006\00256\000\005", metadata !1, metadata !5, metadata !6, null, i32 ()* @main, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 5] [def] [main]
!5 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [/tmp/dbginfo/namespace_inline_function_definition.cpp]
!6 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !7, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!7 = metadata !{metadata !8}
!8 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!9 = metadata !{i32 786478, metadata !1, metadata !10, metadata !"func", metadata !"func", metadata !"_ZN2ns4funcEi", i32 6, metadata !11, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @_ZN2ns4funcEi, null, null, metadata !2, i32 6} ; [ DW_TAG_subprogram ] [line 6] [def] [func]
!10 = metadata !{i32 786489, metadata !1, null, metadata !"ns", i32 1} ; [ DW_TAG_namespace ] [ns] [line 1]
!11 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !12, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!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\00func\00func\00_ZN2ns4funcEi\006\000\001\000\006\00256\000\006", metadata !1, metadata !10, metadata !11, null, i32 (i32)* @_ZN2ns4funcEi, null, null, metadata !2} ; [ DW_TAG_subprogram ] [line 6] [def] [func]
!10 = metadata !{metadata !"0x39\00ns\001", metadata !1, null} ; [ DW_TAG_namespace ] [ns] [line 1]
!11 = metadata !{metadata !"0x15\00\000\000\000\000\000\000", i32 0, null, null, metadata !12, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!12 = metadata !{metadata !8, metadata !8}
!13 = metadata !{i32 2, metadata !"Dwarf Version", i32 4}
!14 = metadata !{i32 2, metadata !"Debug Info Version", i32 1}
!14 = metadata !{i32 2, metadata !"Debug Info Version", i32 2}
!15 = metadata !{metadata !"clang version 3.5.0 "}
!16 = metadata !{i32 5, i32 0, metadata !4, null}
!17 = metadata !{i32 786689, metadata !9, metadata !"i", metadata !5, i32 16777222, metadata !8, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [i] [line 6]
!17 = metadata !{metadata !"0x101\00i\0016777222\000", metadata !9, metadata !5, metadata !8} ; [ DW_TAG_arg_variable ] [i] [line 6]
!18 = metadata !{i32 6, i32 0, metadata !9, metadata !16}
!19 = metadata !{i32 6, i32 0, metadata !9, null}