[dwarfdump] Add missing DW_LANG_Mips_Assembler case to LanguageString()

[friss]

Summary

This one should be pretty uncontroversial, just adding a missing case in a Dwarf.cpp switch. Some testcases needed updating though.

[dblaikie]

Looks good to me.

[friss]

Closed by commit rL217182 (authored by @friss).

lib/Support/Dwarf.cpp

const char *llvm::dwarf::LanguageString(unsigned Language) {
   case DW_LANG_OpenCL:                   return "DW_LANG_OpenCL";
   case DW_LANG_Go:                       return "DW_LANG_Go";
   case DW_LANG_Modula3:                  return "DW_LANG_Modula3";
   case DW_LANG_Haskell:                  return "DW_LANG_Haskell";
   case DW_LANG_C_plus_plus_03:           return "DW_LANG_C_plus_plus_03";
   case DW_LANG_C_plus_plus_11:           return "DW_LANG_C_plus_plus_11";
   case DW_LANG_OCaml:                    return "DW_LANG_OCaml";
   case DW_LANG_lo_user:                  return "DW_LANG_lo_user";
+  case DW_LANG_Mips_Assembler:           return "DW_LANG_Mips_Assembler";
   case DW_LANG_hi_user:                  return "DW_LANG_hi_user";
   }
   return nullptr;
 }
 
 /// CaseString - Return the string for the specified identifier case.
 ///
 const char *llvm::dwarf::CaseString(unsigned Case) {

test/DebugInfo/2010-03-19-DbgDeclare.ll

 ; RUN: opt < %s -verify -S | FileCheck %s
 
-; CHECK: lang 0x8001
+; CHECK: [DW_LANG_Mips_Assembler]
 
 define void @Foo(i32 %a, i32 %b) {
 entry:
   call void @llvm.dbg.declare(metadata !{i32* null}, metadata !1)
   ret void
 }
 !llvm.dbg.cu = !{!2}
 !llvm.module.flags = !{!5}
 !2 = metadata !{i32 786449, metadata !4, i32 32769, metadata !"clang version 3.3 ", i1 false, metadata !"", i32 0, metadata !3, metadata !3, metadata !3, metadata !3,  metadata !3, metadata !"", i32 1} ; [ DW_TAG_compile_unit ] [/usr/local/google/home/blaikie/dev/scratch/scratch.cpp] [lang 0x8001]
 !3 = metadata !{}
 !0 = metadata !{i32 662302, i32 26, metadata !1, null}
 !1 = metadata !{i32 4, metadata !"foo"}
 !4 = metadata !{metadata !"scratch.cpp", metadata !"/usr/local/google/home/blaikie/dev/scratch"}
 
 declare void @llvm.dbg.declare(metadata, metadata) nounwind readnone
 !5 = metadata !{i32 1, metadata !"Debug Info Version", i32 1}

test/MC/MachO/gen-dwarf.s

 // CHECK:  DW_TAG_compile_unit [1] *
 // CHECK:    DW_AT_stmt_list [DW_FORM_data4]  (0x00000000)
 // CHECK:    DW_AT_low_pc [DW_FORM_addr]  (0x0000000000000000)
 // CHECK:    DW_AT_high_pc [DW_FORM_addr] (0x0000000000000008)
 // We don't check the file name as it is a temp directory
 // CHECK:    DW_AT_name [DW_FORM_string]
 // We don't check the DW_AT_comp_dir which is the current working directory
 // CHECK:    DW_AT_producer [DW_FORM_string]  ("llvm-mc (based on {{.*}})")
-// CHECK:    DW_AT_language [DW_FORM_data2] (0x8001)
+// CHECK:    DW_AT_language [DW_FORM_data2] (DW_LANG_Mips_Assembler)
 
 // CHECK:    DW_TAG_label [2] *
 // CHECK:      DW_AT_name [DW_FORM_string]  ("bar")
 // CHECK:      DW_AT_decl_file [DW_FORM_data4]  (0x00000001)
 // CHECK:      DW_AT_decl_line [DW_FORM_data4]  (0x00000005)
 // CHECK:      DW_AT_low_pc [DW_FORM_addr]  (0x0000000000000000)
 // CHECK:      DW_AT_prototyped [DW_FORM_flag]  (0x00)