re PR target/56540 (No __SIZEOF__XXX__ macro for __float128)

	PR target/56540
	* config/pa/pa.h (TARGET_CPU_CPP_BUILTINS): Predefine
	__SIZEOF_128__ macro if HPUX_LONG_DOUBLE_LIBRARY.

From-SVN: r258139

gcc/ChangeLog

 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
 
 	PR target/56540
+	* config/pa/pa.h (TARGET_CPU_CPP_BUILTINS): Predefine
+	__SIZEOF_128__ macro if HPUX_LONG_DOUBLE_LIBRARY.
+
+	PR target/56540
 	* config/ia64/ia64.h (TARGET_CPU_CPP_BUILTINS): Predefine
 	__SIZEOF_{FPREG,FLOAT{80,128}}__ macros.
 

gcc/config/pa/pa.h

@@ -177,6 +177,8 @@ do {								\
        builtin_define("_PA_RISC1_1");				\
      else							\
        builtin_define("_PA_RISC1_0");				\
+     if (HPUX_LONG_DOUBLE_LIBRARY)				\
+       builtin_define("__SIZEOF_FLOAT128__=16");		\
 } while (0)
 
 /* An old set of OS defines for various BSD-like systems.  */