* pa32-regs.h (IRA_COVER_CLASSES): Define.

[pf3gnuchains/gcc-fork.git] / gcc / config / pa / pa64-regs.h

diff --git a/gcc/config/pa/pa64-regs.h b/gcc/config/pa/pa64-regs.h
index 828265f..ec86560 100644 (file)
--- a/gcc/config/pa/pa64-regs.h
+++ b/gcc/config/pa/pa64-regs.h
@@ -235,12 +235,25 @@ enum reg_class { NO_REGS, R1_REGS, GENERAL_REGS, FPUPPER_REGS, FP_REGS,
  {{0x00000000, 0x00000000},    /* NO_REGS */                   \
   {0x00000002, 0x00000000},    /* R1_REGS */                   \
   {0xfffffffe, 0x00000000},    /* GENERAL_REGS */              \
-  {0x00000000, 0x00000000},    /* FPUPPER_REGS */                      \
+  {0x00000000, 0x00000000},    /* FPUPPER_REGS */              \
   {0x00000000, 0x0fffffff},    /* FP_REGS */                   \
   {0xfffffffe, 0x0fffffff},    /* GENERAL_OR_FP_REGS */        \
   {0x00000000, 0x10000000},    /* SHIFT_REGS */                \
   {0xfffffffe, 0x1fffffff}}    /* ALL_REGS */
 
+/* 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                                              \
+{                                                                      \
+  GENERAL_REGS, FP_REGS, SHIFT_REGS, LIM_REG_CLASSES                   \
+}
+
 /* Defines invalid mode changes.  */
 
 #define CANNOT_CHANGE_MODE_CLASS(FROM, TO, CLASS) \