Implement the DWARF 6 language and version attributes. (llvm#89980)

This patch adds DWARF constants for DW_AT_language_name and
DW_AT_language_version to Dwarf.def and Dwarf.h.

While the DWARF 6 spec is not finalized, the constants are published on
the DWARF website and considered stable, with idea being that the list
published on dwarfstd.org is the authoritative source that is being
continuously updated between DWARF revisions, as new languages are being
developed.

https://dwarfstd.org/languages-v6.html

My main motivation for adding this is to use in
llvm#89981

(cherry picked from commit 300340f)

Author: adrian-prantl

llvm/include/llvm-c/DebugInfo.h

@@ -125,7 +125,20 @@ typedef enum {
   LLVMDWARFSourceLanguageFortran18,
   LLVMDWARFSourceLanguageAda2005,
   LLVMDWARFSourceLanguageAda2012,
+  LLVMDWARFSourceLanguageHIP,
+  LLVMDWARFSourceLanguageAssembly,
+  LLVMDWARFSourceLanguageC_sharp,
   LLVMDWARFSourceLanguageMojo,
+  LLVMDWARFSourceLanguageGLSL,
+  LLVMDWARFSourceLanguageGLSL_ES,
+  LLVMDWARFSourceLanguageHLSL,
+  LLVMDWARFSourceLanguageOpenCL_CPP,
+  LLVMDWARFSourceLanguageCPP_for_OpenCL,
+  LLVMDWARFSourceLanguageSYCL,
+  LLVMDWARFSourceLanguageRuby,
+  LLVMDWARFSourceLanguageMove,
+  LLVMDWARFSourceLanguageHylo,
+
   // Vendor extensions:
   LLVMDWARFSourceLanguageMips_Assembler,
   LLVMDWARFSourceLanguageGOOGLE_RenderScript,

llvm/include/llvm/BinaryFormat/Dwarf.def

@@ -11,19 +11,20 @@
 //===----------------------------------------------------------------------===//
 
 // TODO: Add other DW-based macros.
-#if !(                                                                         \
-    defined HANDLE_DW_TAG || defined HANDLE_DW_AT || defined HANDLE_DW_FORM || \
-    defined HANDLE_DW_OP || defined HANDLE_DW_OP_LLVM_USEROP ||                    \
-    defined HANDLE_DW_LANG || defined HANDLE_DW_ATE ||                         \
-    defined HANDLE_DW_VIRTUALITY || defined HANDLE_DW_DEFAULTED ||             \
-    defined HANDLE_DW_CC || defined HANDLE_DW_LNS || defined HANDLE_DW_LNE ||  \
-    defined HANDLE_DW_LNCT || defined HANDLE_DW_MACRO ||                       \
-    defined HANDLE_DW_MACRO_GNU || defined HANDLE_MACRO_FLAG ||                \
-    defined HANDLE_DW_RLE || defined HANDLE_DW_LLE ||                          \
-    (defined HANDLE_DW_CFA && defined HANDLE_DW_CFA_PRED) ||                   \
-    defined HANDLE_DW_APPLE_PROPERTY || defined HANDLE_DW_UT ||                \
-    defined HANDLE_DWARF_SECTION || defined HANDLE_DW_IDX ||                   \
-    defined HANDLE_DW_END || defined HANDLE_DW_SECT)
+#if !(defined HANDLE_DW_TAG || defined HANDLE_DW_AT ||                         \
+      defined HANDLE_DW_FORM || defined HANDLE_DW_OP ||                        \
+      defined HANDLE_DW_OP_LLVM_USEROP || defined HANDLE_DW_LANG ||            \
+      defined HANDLE_DW_LNAME || defined HANDLE_DW_ATE ||                      \
+      defined HANDLE_DW_VIRTUALITY || defined HANDLE_DW_DEFAULTED ||           \
+      defined HANDLE_DW_CC || defined HANDLE_DW_LNS ||                         \
+      defined HANDLE_DW_LNE || defined HANDLE_DW_LNCT ||                       \
+      defined HANDLE_DW_MACRO || defined HANDLE_DW_MACRO_GNU ||                \
+      defined HANDLE_MACRO_FLAG || defined HANDLE_DW_RLE ||                    \
+      defined HANDLE_DW_LLE ||                                                 \
+      (defined HANDLE_DW_CFA && defined HANDLE_DW_CFA_PRED) ||                 \
+      defined HANDLE_DW_APPLE_PROPERTY || defined HANDLE_DW_UT ||              \
+      defined HANDLE_DWARF_SECTION || defined HANDLE_DW_IDX ||                 \
+      defined HANDLE_DW_END || defined HANDLE_DW_SECT)
 #error "Missing macro definition of HANDLE_DW*"
 #endif
 
@@ -61,6 +62,10 @@
 #define HANDLE_DW_LANG(ID, NAME, LOWER_BOUND, VERSION, VENDOR)
 #endif
 
+#ifndef HANDLE_DW_LNAME
+#define HANDLE_DW_LNAME(ID, NAME, DESC, LOWER_BOUND)
+#endif
+
 #ifndef HANDLE_DW_ATE
 #define HANDLE_DW_ATE(ID, NAME, VERSION, VENDOR)
 #endif
@@ -954,12 +959,81 @@ HANDLE_DW_LANG(0x002c, C17, 0, 0, DWARF)
 HANDLE_DW_LANG(0x002d, Fortran18, 0, 0, DWARF)
 HANDLE_DW_LANG(0x002e, Ada2005, 0, 0, DWARF)
 HANDLE_DW_LANG(0x002f, Ada2012, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0030, HIP, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0031, Assembly, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0032, C_sharp, 0, 0, DWARF)
 HANDLE_DW_LANG(0x0033, Mojo, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0034, GLSL, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0035, GLSL_ES, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0036, HLSL, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0037, OpenCL_CPP, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0038, CPP_for_OpenCL, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0039, SYCL, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0040, Ruby, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0041, Move, 0, 0, DWARF)
+HANDLE_DW_LANG(0x0042, Hylo, 0, 0, DWARF)
+
 // Vendor extensions:
 HANDLE_DW_LANG(0x8001, Mips_Assembler, std::nullopt, 0, MIPS)
 HANDLE_DW_LANG(0x8e57, GOOGLE_RenderScript, 0, 0, GOOGLE)
 HANDLE_DW_LANG(0xb000, BORLAND_Delphi, 0, 0, BORLAND)
 
+// Tentative DWARF 6 language codes. This list is subject to change.
+HANDLE_DW_LNAME(0x0001, Ada, "ISO Ada", 1) // YYYY
+HANDLE_DW_LNAME(0x0002, BLISS, "BLISS", 0)
+//     YYYYMM
+// K&R 000000
+// C89 198912
+// C99 199901
+// C11 201112
+// C17 201710
+// C23 202311
+HANDLE_DW_LNAME(0x0003, C, "C (K&R and ISO)", 0)
+//       YYYYMM
+// C++98 199711
+// C++03 200310
+// C++11 201103
+// C++14 201402
+// C++17 201703
+// C++20 202002
+HANDLE_DW_LNAME(0x0004, C_plus_plus, "ISO C++", 0)
+HANDLE_DW_LNAME(0x0005, Cobol, "ISO Cobol", 1) // YYYY
+HANDLE_DW_LNAME(0x0006, Crystal, "Crystal", 0)
+HANDLE_DW_LNAME(0x0007, D, "D", 0)
+HANDLE_DW_LNAME(0x0008, Dylan, "Dylan", 0)
+HANDLE_DW_LNAME(0x0009, Fortran, "ISO Fortran", 1) // YYYY
+HANDLE_DW_LNAME(0x000a, Go, "Go", 0)
+HANDLE_DW_LNAME(0x000b, Haskell, "Haskell", 0)
+HANDLE_DW_LNAME(0x000c, Java, "Java", 0)
+HANDLE_DW_LNAME(0x000d, Julia, "Julia", 1)
+HANDLE_DW_LNAME(0x000e, Kotlin, "Kotlin", 0)
+HANDLE_DW_LNAME(0x000f, Modula2, "Modula 2", 1)
+HANDLE_DW_LNAME(0x0010, Modula3, "Modula 3", 1)
+HANDLE_DW_LNAME(0x0011, ObjC, "Objective C", 0) // YYYYMM
+HANDLE_DW_LNAME(0x0012, ObjC_plus_plus, "Objective C++", 0) // YYYYMM
+HANDLE_DW_LNAME(0x0013, OCaml, "OCaml", 0)
+HANDLE_DW_LNAME(0x0014, OpenCL_C, "OpenCL C", 0)
+HANDLE_DW_LNAME(0x0015, Pascal, "ISO Pascal", 1) // YYYY
+HANDLE_DW_LNAME(0x0016, PLI, "ANSI PL/I", 1)
+HANDLE_DW_LNAME(0x0017, Python, "Python", 0)
+HANDLE_DW_LNAME(0x0018, RenderScript, "RenderScript Kernel Language", 0)
+HANDLE_DW_LNAME(0x0019, Rust, "Rust", 0)
+HANDLE_DW_LNAME(0x001a, Swift, "Swift", 0) // VVMM
+HANDLE_DW_LNAME(0x001b, UPC, "Unified Parallel C (UPC)", 0)
+HANDLE_DW_LNAME(0x001c, Zig, "Zig", 0)
+HANDLE_DW_LNAME(0x001d, Assembly, "Assembly", 0)
+// Conflict: HANDLE_DW_LNAME(0x001d, HIP, "HIP", 0)
+HANDLE_DW_LNAME(0x001e, C_sharp, "C#", 0)
+HANDLE_DW_LNAME(0x001f, Mojo, "Mojo", 0)
+HANDLE_DW_LNAME(0x0020, GLSL, "OpenGL Shading Language", 0) // VVMMPP
+HANDLE_DW_LNAME(0x0021, GLSL_ES, "OpenGL ES Shading Language", 0) // VVMMPP
+HANDLE_DW_LNAME(0x0022, HLSL, "High Level Shading Language", 0) // YYYY
+HANDLE_DW_LNAME(0x0023, OpenCL_CPP, "OpenCL C++", 0) // VVMM
+HANDLE_DW_LNAME(0x0024, CPP_for_OpenCL, "C++ for OpenCL", 0) // VVMM
+HANDLE_DW_LNAME(0x0025, SYCL, "SYCL", 0) // YYYYRR
+HANDLE_DW_LNAME(0x0026, Ruby, "Ruby", 0) // VVMMPP
+HANDLE_DW_LNAME(0x0027, Move, "Move", 0) // YYYYMM
+HANDLE_DW_LNAME(0x0028, Hylo, "Hylo", 0)
 
 // DWARF attribute type encodings.
 HANDLE_DW_ATE(0x01, address, 2, DWARF)
@@ -1271,6 +1345,7 @@ HANDLE_DW_SECT(8, RNGLISTS)
 #undef HANDLE_DW_OP
 #undef HANDLE_DW_OP_LLVM_USEROP
 #undef HANDLE_DW_LANG
+#undef HANDLE_DW_LNAME
 #undef HANDLE_DW_ATE
 #undef HANDLE_DW_VIRTUALITY
 #undef HANDLE_DW_DEFAULTED