Turn CANNOT_CHANGE_MODE_CLASS into a hook

[thirdparty/gcc.git] / gcc / config / sh / sh.h

diff --git a/gcc/config/sh/sh.h b/gcc/config/sh/sh.h
index 56e5021f34e0eb1d68e44a970d887e131bb4595f..f020972931ad1a2849f09d1de2530666abb1470e 100644 (file)
--- a/gcc/config/sh/sh.h
+++ b/gcc/config/sh/sh.h
@@ -1087,13 +1087,6 @@ extern enum reg_class regno_reg_class[FIRST_PSEUDO_REGISTER];
    Otherwise we will need at most one register per word.  */
 #define CLASS_MAX_NREGS(CLASS, MODE) \
   ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
-
-/* If defined, gives a class of registers that cannot be used as the
-   operand of a SUBREG that changes the mode of the object illegally.
-   ??? We need to renumber the internal numbers for the frnn registers
-   when in little endian in order to allow mode size changes.  */
-#define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \
-  sh_cannot_change_mode_class (FROM, TO, CLASS)
 \f
 /* Stack layout; function entry, exit and calling.  */