DI: Fold constant arguments into a single MDString

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@218914 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Duncan P. N. Exon Smith
2014-10-02 21:56:57 +00:00
parent bf21d40070
commit 0917b70630
354 changed files with 6806 additions and 6707 deletions

View File

@@ -16,15 +16,15 @@
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!10, !11}
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!0 = metadata !{metadata !"0x11\004\00clang version 3.4\000\00\000\00\000", metadata !1, metadata !2, metadata !3, metadata !2, metadata !5, metadata !2} ; [ DW_TAG_compile_unit ] [foo.cpp] [DW_LANG_C_plus_plus]
!1 = metadata !{metadata !"foo.cpp", metadata !"."}
!2 = metadata !{}
!3 = metadata !{metadata !4}
!4 = metadata !{i32 786451, metadata !1, null, metadata !"Foo", i32 1, i64 0, i64 0, i32 0, i32 4, null, null, i32 0, null, null, metadata !"_ZTS3Foo"} ; [ DW_TAG_structure_type ] [Foo] [line 1, size 0, align 0, offset 0] [decl] [from ]
!4 = metadata !{metadata !"0x13\00Foo\001\000\000\000\004\000", metadata !1, null, null, null, null, null, metadata !"_ZTS3Foo"} ; [ DW_TAG_structure_type ] [Foo] [line 1, size 0, align 0, offset 0] [decl] [from ]
!5 = metadata !{metadata !6}
!6 = metadata !{i32 786484, i32 0, null, metadata !"x", metadata !"x", metadata !"", metadata !7, i32 4, metadata !8, i32 0, i32 1, i64* @x, null} ; [ DW_TAG_variable ] [x] [line 4] [def]
!7 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [foo.cpp]
!8 = metadata !{i32 786463, null, null, null, i32 0, i64 0, i64 0, i64 0, i32 0, metadata !9, metadata !"_ZTS3Foo"} ; [ DW_TAG_ptr_to_member_type ] [line 0, size 0, align 0, offset 0] [from int]
!9 = 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]
!6 = metadata !{metadata !"0x34\00x\00x\00\004\000\001", null, metadata !7, metadata !8, i64* @x, null} ; [ DW_TAG_variable ] [x] [line 4] [def]
!7 = metadata !{metadata !"0x29", metadata !1} ; [ DW_TAG_file_type ] [foo.cpp]
!8 = metadata !{metadata !"0x1f\00\000\000\000\000\000", null, null, metadata !9, metadata !"_ZTS3Foo"} ; [ DW_TAG_ptr_to_member_type ] [line 0, size 0, align 0, offset 0] [from int]
!9 = 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]
!10 = metadata !{i32 2, metadata !"Dwarf Version", i32 2}
!11 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
!11 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}