+2013-05-24 Eric Botcazou <ebotcazou@adacore.com>
+
+ * gcc-interface/gigi.h (gnat_init_gcc_fp): Declare.
+ * gcc-interface/trans.c (gigi): Call it.
+ * gcc-interface/misc.c (gnat_init_gcc_fp): New function.
+
2013-05-24 Eric Botcazou <ebotcazou@adacore.com>
* gcc-interface/gigi.h (enum inline_status_t): New type.
for location information and flag propagation. */
extern void gnat_pushdecl (tree decl, Node_Id gnat_node);
+/* Initialize the GCC support for exception handling. */
extern void gnat_init_gcc_eh (void);
+
+/* Initialize the GCC support for floating-point operations. */
+extern void gnat_init_gcc_fp (void);
+
+/* Install the builtin functions we might need. */
extern void gnat_install_builtins (void);
/* Return an integer type with the number of bits of precision given by
* *
* C Implementation File *
* *
- * Copyright (C) 1992-2012, Free Software Foundation, Inc. *
+ * Copyright (C) 1992-2013, Free Software Foundation, Inc. *
* *
* GNAT is free software; you can redistribute it and/or modify it under *
* terms of the GNU General Public License as published by the Free Soft- *
return true;
}
-/* If we are using the GCC mechanism to process exception handling, we
- have to register the personality routine for Ada and to initialize
- various language dependent hooks. */
+/* Initialize the GCC support for exception handling. */
void
gnat_init_gcc_eh (void)
init_eh ();
}
+/* Initialize the GCC support for floating-point operations. */
+
+void
+gnat_init_gcc_fp (void)
+{
+ /* Disable FP optimizations that ignore the signedness of zero if
+ S'Signed_Zeros is True, but don't override the user if not. */
+ if (Signed_Zeros_On_Target)
+ flag_signed_zeros = 1;
+ else if (!global_options_set.x_flag_signed_zeros)
+ flag_signed_zeros = 0;
+
+ /* Assume that FP operations can trap if S'Machine_Overflow is True,
+ but don't override the user if not.
+
+ ??? Alpha/VMS enables FP traps without declaring it. */
+ if (Machine_Overflows_On_Target || TARGET_ABI_OPEN_VMS)
+ flag_trapping_math = 1;
+ else if (!global_options_set.x_flag_trapping_math)
+ flag_trapping_math = 0;
+}
+
/* Print language-specific items in declaration NODE. */
static void