Add constant definitions for fission dwarf attributes, forms, etc.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@168218 91177308-0d34-0410-b5e6-96231b3b80d8

include/llvm/Support/Dwarf.h

@@ -231,6 +231,10 @@ enum dwarf_constants {
   DW_AT_const_expr = 0x6c,
   DW_AT_enum_class = 0x6d,
   DW_AT_linkage_name = 0x6e,
+
+  DW_AT_lo_user = 0x2000,
+  DW_AT_hi_user = 0x3fff,
+
   DW_AT_MIPS_loop_begin = 0x2002,
   DW_AT_MIPS_tail_loop_begin = 0x2003,
   DW_AT_MIPS_epilog_begin = 0x2004,
@@ -246,6 +250,12 @@ enum dwarf_constants {
   DW_AT_MIPS_ptr_dopetype = 0x200e,
   DW_AT_MIPS_allocatable_dopetype = 0x200f,
   DW_AT_MIPS_assumed_shape_dopetype = 0x2010,
+
+  // This one appears to have only been implemented by Open64 for
+  // fortran and may conflict with other extensions.
+  DW_AT_MIPS_assumed_size = 0x2011,
+
+  // GNU extensions
   DW_AT_sf_names = 0x2101,
   DW_AT_src_info = 0x2102,
   DW_AT_mac_info = 0x2103,
@@ -254,9 +264,14 @@ enum dwarf_constants {
   DW_AT_body_end = 0x2106,
   DW_AT_GNU_vector = 0x2107,
   DW_AT_GNU_template_name = 0x2110,
-  DW_AT_MIPS_assumed_size = 0x2011,
-  DW_AT_lo_user = 0x2000,
-  DW_AT_hi_user = 0x3fff,
+
+  // Extensions for Fission proposal.
+  DW_AT_GNU_dwo_name = 0x2130,
+  DW_AT_GNU_dwo_id = 0x2131,
+  DW_AT_GNU_ranges_base = 0x2132,
+  DW_AT_GNU_addr_base = 0x2133,
+  DW_AT_GNU_pubnames = 0x2134,
+  DW_AT_GNU_pubtypes = 0x2135,
 
   // Apple extensions.
   DW_AT_APPLE_optimized = 0x3fe1,
@@ -300,6 +315,10 @@ enum dwarf_constants {
   DW_FORM_flag_present = 0x19,
   DW_FORM_ref_sig8 = 0x20,
 
+  // Extensions for Fission proposal
+  DW_FORM_GNU_addr_index = 0x1f01,
+  DW_FORM_GNU_str_index = 0x1f02,
+
   // Operation encodings
   DW_OP_addr = 0x03,
   DW_OP_deref = 0x06,
@@ -458,6 +477,10 @@ enum dwarf_constants {
   DW_OP_lo_user = 0xe0,
   DW_OP_hi_user = 0xff,
 
+  // Extensions for Fission proposal.
+  DW_OP_GNU_addr_index = 0xfb,
+  DW_OP_GNU_const_index = 0xfc,
+
   // Encoding attribute values
   DW_ATE_address = 0x01,
   DW_ATE_boolean = 0x02,