--- gcc/config/i386/isc.h	2018/04/24 18:10:27	1.1.1.1
+++ gcc/config/i386/isc.h	2018/04/24 18:17:08	1.1.1.2
@@ -39,7 +39,7 @@
 	      == void_type_node))) ? (SIZE)			\
    : 0)
 /* On other 386 systems, the last line looks like this:
-   : (aggregate_value_p (FUNTYPE)) ? GET_MODE_SIZE (Pmode) : 0)  */
+   : (aggregate_value_p (TREE_TYPE (FUNTYPE))) ? GET_MODE_SIZE (Pmode) : 0)  */
 #endif
 
 /* Handle #pragma pack and #pragma weak.  */
@@ -55,3 +55,8 @@
 
 #undef TARGET_DEFAULT
 #define TARGET_DEFAULT 0201
+
+/* The ISC 2.0.2 software FPU emulator apparently can't handle
+   80-bit XFmode insns, so don't generate them.  */
+#undef LONG_DOUBLE_TYPE_SIZE
+#define LONG_DOUBLE_TYPE_SIZE 64