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

	PR target/56540
	* config/ia64/ia64.h (TARGET_CPU_CPP_BUILTINS): Predefine
	__SIZEOF_{FPREG,FLOAT{80,128}}__ macros.

	* gcc.target/ia64/pr56540.c: New test.

From-SVN: r258138

gcc/ChangeLog

 2018-03-02  Jakub Jelinek  <jakub@redhat.com>
 
+	PR target/56540
+	* config/ia64/ia64.h (TARGET_CPU_CPP_BUILTINS): Predefine
+	__SIZEOF_{FPREG,FLOAT{80,128}}__ macros.
+
 	* predict.c (test_prediction_value_range): Use PROB_UNINITIALIZED
 	instead of -1U in last predictors element's probability member.
 

gcc/config/ia64/ia64.h

@@ -38,6 +38,9 @@ do {						\
 	builtin_define("__itanium__");		\
 	if (TARGET_BIG_ENDIAN)			\
 	  builtin_define("__BIG_ENDIAN__");	\
+	builtin_define("__SIZEOF_FPREG__=16");	\
+	builtin_define("__SIZEOF_FLOAT80__=16");\
+	builtin_define("__SIZEOF_FLOAT128__=16");\
 } while (0)
 
 #ifndef SUBTARGET_EXTRA_SPECS

gcc/testsuite/ChangeLog

+2018-03-02  Jakub Jelinek  <jakub@redhat.com>
+
+	PR target/56540
+	* gcc.target/ia64/pr56540.c: New test.
+
 2018-03-02  Will Schmidt  <will_schmidt@vnet.ibm.com>
 
 	* gcc.target/powerpc/altivec-7-be.c: Remove VSX content, allow

gcc/testsuite/gcc.target/ia64/pr56540.c

+/* PR target/56540 */
+/* { dg-do compile } */
+
+extern int a[__SIZEOF_FPREG__ != sizeof (__fpreg) ? -1 : 1];
+extern int b[__SIZEOF_FLOAT80__ != sizeof (__float80) ? -1 : 1];
+extern int c[__SIZEOF_FLOAT128__ != sizeof (__float128) ? -1 : 1];