[PATCH] D39281: [libunwind] Express Registers_*::lastDwarfReg using _LIBUNWIND_HIGHEST_DWARF_REGISTER

[Martin Storsjö via Phabricator via cfe-commits]

mstorsjo created this revision.

This avoids having to keep the same information duplicated in multiple places.


https://reviews.llvm.org/D39281

Files:
  src/Registers.hpp


Index: src/Registers.hpp
===================================================================
--- src/Registers.hpp
+++ src/Registers.hpp
@@ -44,7 +44,7 @@
   void        setVectorRegister(int num, v128 value);
   const char *getRegisterName(int num);
   void        jumpto();
-  static int  lastDwarfRegNum() { return 8; }
+  static int  lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER - 1; }
 
   uint32_t  getSP() const          { return _registers.__esp; }
   void      setSP(uint32_t value)  { _registers.__esp = value; }
@@ -250,7 +250,7 @@
   void        setVectorRegister(int num, v128 value);
   const char *getRegisterName(int num);
   void        jumpto();
-  static int  lastDwarfRegNum() { return 16; }
+  static int  lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER - 1; }
 
   uint64_t  getSP() const          { return _registers.__rsp; }
   void      setSP(uint64_t value)  { _registers.__rsp = value; }
@@ -500,7 +500,7 @@
   void        setVectorRegister(int num, v128 value);
   const char *getRegisterName(int num);
   void        jumpto();
-  static int  lastDwarfRegNum() { return 112; }
+  static int  lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER - 1; }
 
   uint64_t  getSP() const         { return _registers.__r1; }
   void      setSP(uint32_t value) { _registers.__r1 = value; }
@@ -1066,7 +1066,7 @@
   void        setVectorRegister(int num, v128 value);
   const char *getRegisterName(int num);
   void        jumpto();
-  static int  lastDwarfRegNum() { return 95; }
+  static int  lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER - 1; }
 
   uint64_t  getSP() const         { return _registers.__sp; }
   void      setSP(uint64_t value) { _registers.__sp = value; }
@@ -1815,7 +1815,7 @@
   void        setVectorRegister(int num, v128 value);
   const char *getRegisterName(int num);
   void        jumpto();
-  static int  lastDwarfRegNum() { return 31; }
+  static int  lastDwarfRegNum() { return _LIBUNWIND_HIGHEST_DWARF_REGISTER - 1; }
 
   uint64_t  getSP() const         { return _registers.__r[1]; }
   void      setSP(uint32_t value) { _registers.__r[1] = value; }


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