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Re: [patch] make -fstrict-volatile-bitfields the default for m32c, rx, sh, h8
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Index: rx.c
===================================================================
--- rx.c (revision 162014)
+++ rx.c (working copy)
@@ -2187,12 +2187,20 @@ rx_set_optimization_options (void)
if (saved_allow_rx_fpu != ALLOW_RX_FPU_INSNS)
error ("Changing the FPU insns/math optimizations pairing is not supported");
}
}
+static void
+rx_option_override (void)
+{
+ /* This target defaults to strict volatile bitfields. */
+ if (flag_strict_volatile_bitfields < 0)
+ flag_strict_volatile_bitfields = 1;
+}
+
static bool
rx_allocate_stack_slots_for_args (void)
{
/* Naked functions should not allocate stack slots for arguments. */
return ! is_naked_func (NULL_TREE);
@@ -2775,9 +2783,12 @@ rx_memory_move_cost (enum machine_mode m
#undef TARGET_CC_MODES_COMPATIBLE
#define TARGET_CC_MODES_COMPATIBLE rx_cc_modes_compatible
#undef TARGET_MEMORY_MOVE_COST
#define TARGET_MEMORY_MOVE_COST rx_memory_move_cost
+#undef TARGET_OPTION_OVERRIDE
+#define TARGET_OPTION_OVERRIDE rx_option_override
+
struct gcc_target targetm = TARGET_INITIALIZER;
/* #include "gt-rx.h" */