2011-03-27 Vladimir Makarov <vmakarov@redhat.com>

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

diff --git a/gcc/config/score/score.h b/gcc/config/score/score.h
index c66e0e934cedce8a0ef4d064f9d5b7b42034f827..4554e2673441ba8b38d0e743b0e4bcaca31f6a98 100644 (file)
--- a/gcc/config/score/score.h
+++ b/gcc/config/score/score.h
@@ -390,6 +390,18 @@ enum reg_class
    also contains the register.  */
 #define REGNO_REG_CLASS(REGNO) (enum reg_class) score_reg_class (REGNO)
 
+/* The following macro defines cover classes for Integrated Register
+   Allocator.  Cover classes is a set of non-intersected register
+   classes covering all hard registers used for register allocation
+   purpose.  Any move between two registers of a cover class should be
+   cheaper than load or store of the registers.  The macro value is
+   array of register classes with LIM_REG_CLASSES used as the end
+   marker.  */
+#define IRA_COVER_CLASSES                                      \
+{                                                              \
+  G32_REGS, CE_REGS, SP_REGS, LIM_REG_CLASSES                  \
+}
+
 /* A macro whose definition is the name of the class to which a
    valid base register must belong.  A base register is one used in
    an address which is the register value plus a displacement.  */