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.
llvm-svn: 218914
diff --git a/llvm/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll b/llvm/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
index 75819ce..c98ef28 100644
--- a/llvm/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
+++ b/llvm/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
@@ -60,7 +60,7 @@
entry:
%a.addr = alloca i32, align 4
store i32 %a, i32* %a.addr, align 4
- call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !15, metadata !{i32 786690}), !dbg !16
+ call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !15, metadata !{metadata !"0x102"}), !dbg !16
%0 = load i32* %a.addr, align 4, !dbg !17
%call = call i32 @fn(i32 %0), !dbg !17
ret i32 %call, !dbg !17
@@ -72,33 +72,33 @@
entry:
%a.addr = alloca i32, align 4
store i32 %a, i32* %a.addr, align 4
- call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !19, metadata !{i32 786690}), !dbg !20
+ call void @llvm.dbg.declare(metadata !{i32* %a.addr}, metadata !19, metadata !{metadata !"0x102"}), !dbg !20
%0 = load i32* %a.addr, align 4, !dbg !21
ret i32 %0, !dbg !21
}
!llvm.dbg.cu = !{!0, !10}
!llvm.module.flags = !{!25}
-!0 = metadata !{i32 786449, metadata !23, i32 12, metadata !"clang version 3.3", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !3, metadata !1, metadata !1, metadata !"", i32 1} ; [ DW_TAG_compile_unit ]
+!0 = metadata !{metadata !"0x11\0012\00clang version 3.3\000\00\000\00\001", metadata !23, metadata !1, metadata !1, metadata !3, metadata !1, metadata !1} ; [ DW_TAG_compile_unit ]
!1 = metadata !{}
!3 = metadata !{metadata !5}
-!5 = metadata !{i32 786478, metadata !23, metadata !6, metadata !"test", metadata !"test", metadata !"", i32 2, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @test, null, null, metadata !1, i32 3} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 3] [test]
-!6 = metadata !{i32 786473, metadata !23} ; [ DW_TAG_file_type ]
-!7 = metadata !{i32 786453, i32 0, null, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !8, i32 0, null, null, null} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
+!5 = metadata !{metadata !"0x2e\00test\00test\00\002\000\001\000\006\00256\000\003", metadata !23, metadata !6, metadata !7, null, i32 (i32)* @test, null, null, metadata !1} ; [ DW_TAG_subprogram ] [line 2] [def] [scope 3] [test]
+!6 = metadata !{metadata !"0x29", metadata !23} ; [ DW_TAG_file_type ]
+!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 !{metadata !9, metadata !9}
-!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]
-!10 = metadata !{i32 786449, metadata !24, i32 12, metadata !"clang version 3.3 (trunk 172862)", i1 false, metadata !"", i32 0, metadata !1, metadata !1, metadata !11, metadata !1, metadata !1, metadata !"", i32 1} ; [ DW_TAG_compile_unit ]
+!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 !{metadata !"0x11\0012\00clang version 3.3 (trunk 172862)\000\00\000\00\001", metadata !24, metadata !1, metadata !1, metadata !11, metadata !1, metadata !1} ; [ DW_TAG_compile_unit ]
!11 = metadata !{metadata !13}
-!13 = metadata !{i32 786478, metadata !24, metadata !14, metadata !"fn", metadata !"fn", metadata !"", i32 1, metadata !7, i1 false, i1 true, i32 0, i32 0, null, i32 256, i1 false, i32 (i32)* @fn, null, null, metadata !1, i32 1} ; [ DW_TAG_subprogram ] [line 1] [def] [fn]
-!14 = metadata !{i32 786473, metadata !24} ; [ DW_TAG_file_type ]
-!15 = metadata !{i32 786689, metadata !5, metadata !"a", metadata !6, i32 16777218, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [a] [line 2]
+!13 = metadata !{metadata !"0x2e\00fn\00fn\00\001\000\001\000\006\00256\000\001", metadata !24, metadata !14, metadata !7, null, i32 (i32)* @fn, null, null, metadata !1} ; [ DW_TAG_subprogram ] [line 1] [def] [fn]
+!14 = metadata !{metadata !"0x29", metadata !24} ; [ DW_TAG_file_type ]
+!15 = metadata !{metadata !"0x101\00a\0016777218\000", metadata !5, metadata !6, metadata !9} ; [ DW_TAG_arg_variable ] [a] [line 2]
!16 = metadata !{i32 2, i32 0, metadata !5, null}
!17 = metadata !{i32 4, i32 0, metadata !18, null}
-!18 = metadata !{i32 786443, metadata !23, metadata !5, i32 3, i32 0, i32 0} ; [ DW_TAG_lexical_block ]
-!19 = metadata !{i32 786689, metadata !13, metadata !"a", metadata !14, i32 16777217, metadata !9, i32 0, i32 0} ; [ DW_TAG_arg_variable ] [a] [line 1]
+!18 = metadata !{metadata !"0xb\003\000\000", metadata !23, metadata !5} ; [ DW_TAG_lexical_block ]
+!19 = metadata !{metadata !"0x101\00a\0016777217\000", metadata !13, metadata !14, metadata !9} ; [ DW_TAG_arg_variable ] [a] [line 1]
!20 = metadata !{i32 1, i32 0, metadata !13, null}
!21 = metadata !{i32 2, i32 0, metadata !22, null}
-!22 = metadata !{i32 786443, metadata !24, metadata !13, i32 1, i32 0, i32 0} ; [ DW_TAG_lexical_block ]
+!22 = metadata !{metadata !"0xb\001\000\000", metadata !24, metadata !13} ; [ DW_TAG_lexical_block ]
!23 = metadata !{metadata !"simple.c", metadata !"/private/tmp"}
!24 = metadata !{metadata !"simple2.c", metadata !"/private/tmp"}
-!25 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}
+!25 = metadata !{i32 1, metadata !"Debug Info Version", i32 2}