Hi.
This patch removes obsolete PREFERRED_RELOAD_CLASS macro from the BFIN back
end in the GCC and introduces equivalent TARGET_PREFERRED_RELOAD_CLASS target
hook.
Compiled. Untested.
OK to install?
* config/bfin/bfin.h (PREFERRED_RELOAD_CLASS): Remove.
* config/bfin/bfin.c (TARGET_PREFERRED_RELOAD_CLASS): Define.
(bfin_preferred_reload_class): New function.
Index: gcc/config/bfin/bfin.c
===================================================================
--- gcc/config/bfin/bfin.c (revision 182912)
+++ gcc/config/bfin/bfin.c (working copy)
@@ -2648,6 +2648,19 @@ split_load_immediate (rtx operands[])
return 0;
}
+/* Worker function for TARGET_PREFERRED_RELOAD_CLASS. */
+
+static reg_class_t
+bfin_preferred_reload_class (rtx x, reg_class_t rclass)
+{
+ if (GET_CODE (x) == POST_INC
+ || GET_CODE (x) == POST_DEC
+ || GET_CODE (x) == PRE_DEC)
+ return PREGS;
+
+ return rclass;
+}
+
/* Return true if the legitimate memory address for a memory operand of mode
MODE. Return false if not. */
@@ -5771,6 +5784,9 @@ bfin_conditional_register_usage (void)
#undef TARGET_RETURN_IN_MEMORY
#define TARGET_RETURN_IN_MEMORY bfin_return_in_memory
+#undef TARGET_PREFERRED_RELOAD_CLASS
+#define TARGET_PREFERRED_RELOAD_CLASS bfin_preferred_reload_class
+
#undef TARGET_LEGITIMATE_ADDRESS_P
#define TARGET_LEGITIMATE_ADDRESS_P bfin_legitimate_address_p
Index: gcc/config/bfin/bfin.h
===================================================================
--- gcc/config/bfin/bfin.h (revision 182912)
+++ gcc/config/bfin/bfin.h (working copy)
@@ -707,16 +707,6 @@ enum reg_class
&& GET_MODE_SIZE (MODE1) <= UNITS_PER_WORD \
&& GET_MODE_SIZE (MODE2) <= UNITS_PER_WORD))
-/* `PREFERRED_RELOAD_CLASS (X, CLASS)'
- A C expression that places additional restrictions on the register
- class to use when it is necessary to copy value X into a register
- in class CLASS. The value is a register class; perhaps CLASS, or
- perhaps another, smaller class. */
-#define PREFERRED_RELOAD_CLASS(X, CLASS) \
- (GET_CODE (X) == POST_INC \
- || GET_CODE (X) == POST_DEC \
- || GET_CODE (X) == PRE_DEC ? PREGS : (CLASS))
-
/* Function Calling Conventions. */
/* The type of the current function; normal functions are of type
--
Anatoly.
