ngoto	2017-04-15 04:12:51 +0900 (Sat, 15 Apr 2017)

  New Revision: 58358

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=58358

  Log:
    Workaround for optimization bug of Oracle Solaris Studio 12.4 and 12.5
    
    * pack.c (pack_unpack, AVOID_CC_BUG): Very ugly workaround for
      optimization bug of Oracle Solaris Studio 12.4 and 12.5
      (Oracle Developer Studio 12.5) on Solaris with -xO4 optimization
      option. [Bug #11684] [ruby-core:80690]

  Modified files:
    trunk/pack.c
Index: pack.c
===================================================================
--- pack.c	(revision 58357)
+++ pack.c	(revision 58358)
@@ -1011,10 +1011,10 @@ hex2num(char c) https://github.com/ruby/ruby/blob/trunk/pack.c#L1011
 	rb_ary_store(ary, RARRAY_LEN(ary)+tmp_len-1, Qnil); \
 } while (0)
 
-/* Workaround for Oracle Solaris Studio 12.4 C compiler optimization bug
+/* Workaround for Oracle Solaris Studio 12.4/12.5 C compiler optimization bug
  * with "-xO4" optimization option.
  */
-#if defined(__SUNPRO_C) && __SUNPRO_C == 0x5130
+#if defined(__SUNPRO_C) && 0x5130 <= __SUNPRO_C && __SUNPRO_C <= 0x5140
 # define AVOID_CC_BUG volatile
 #else
 # define AVOID_CC_BUG

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