c4x.h (IS_INT_CALL_SAVED_REG, [...]): Define.

	* c4x.h (IS_INT_CALL_SAVED_REG, IS_FLOAT_CALL_SAVED_REG): Define.
	(HARD_REGNO_CALL_PART_CLOBBERED): Use IS_FLOAT_CALL_SAVED_REG.
	(INITIAL_FRAME_POINTER_OFFSET, INITIAL_ELIMINATION_OFFSET): Likewise.
	* c4x.c (c4x_hard_regno_rename_ok): Use IS_XXX_CALL_SAVED_REG.
	(c4x_expand_prologue, c4x_expand_epilogue): Likewise.

From-SVN: r39421

gcc/ChangeLog

+2001-02-03  Michael Hayes  <m.hayes@elec.canterbury.ac.nz)
+
+	* c4x.h (IS_INT_CALL_SAVED_REG, IS_FLOAT_CALL_SAVED_REG): Define.
+	(HARD_REGNO_CALL_PART_CLOBBERED): Use IS_FLOAT_CALL_SAVED_REG.
+	(INITIAL_FRAME_POINTER_OFFSET, INITIAL_ELIMINATION_OFFSET): Likewise.
+	* c4x.c (c4x_hard_regno_rename_ok): Use IS_XXX_CALL_SAVED_REG.
+	(c4x_expand_prologue, c4x_expand_epilogue): Likewise.
+
 2001-02-03  Herman A.J. ten Brugge <Haj.Ten.Brugge@net.HCC.nl>
 
 	* c4x.c (group1_reg_operand, group1_mem_operand, arx_reg_operand,

gcc/config/c4x/c4x.c

@@ -437,11 +437,9 @@ c4x_hard_regno_rename_ok (regno1, regno2)
 {
   /* We can not copy call saved registers from mode QI into QF or from
      mode QF into QI.  */
-  if ((regno1 == R6_REGNO || regno1 == R7_REGNO)
-      && (regno2 == R4_REGNO || regno2 == R5_REGNO || regno2 == R8_REGNO))
+  if (IS_FLOAT_CALL_SAVED_REGNO (regno1) && IS_INT_CALL_SAVED_REGNO (regno2))
     return 0;
-  if ((regno1 == R4_REGNO || regno1 == R5_REGNO || regno1 == R8_REGNO)
-      && (regno2 == R6_REGNO || regno2 == R7_REGNO))
+  if (IS_INT_CALL_SAVED_REGNO (regno1) && IS_FLOAT_CALL_SAVED_REGNO (regno2))
     return 0;
   /* We cannot copy from an extended (40 bit) register to a standard
      (32 bit) register because we only set the condition codes for
@@ -987,9 +985,8 @@ c4x_expand_prologue ()
 	{
 	  if (regs_ever_live[regno] && ! call_used_regs[regno])
 	    {
-	      if ((regno == R6_REGNO) || (regno == R7_REGNO))
+	      if (IS_FLOAT_CALL_SAVED_REGNO (regno))
 		{
-		  /* R6 and R7 are saved as floating point.  */
 		  if (TARGET_PRESERVE_FLOAT)
 		    {
                       insn = emit_insn (gen_pushqi
@@ -1119,8 +1116,7 @@ c4x_expand_epilogue()
 	      if (regno == AR3_REGNO && dont_pop_ar3)
 		continue;
 	      
-	      /* R6 and R7 are saved as floating point.  */
-	      if ((regno == R6_REGNO) || (regno == R7_REGNO))
+	      if (IS_FLOAT_CALL_SAVED_REGNO (regno))
 		{
 		  insn = emit_insn (gen_popqf_unspec
 				    (gen_rtx_REG (QFmode, regno)));

gcc/config/c4x/c4x.h

@@ -492,6 +492,9 @@ extern const char *c4x_rpts_cycles_string, *c4x_cpu_version_string;
 		       		   || IS_BK_REGNO(r))
 #define IS_INT_REGNO(r)           (IS_EXT_REGNO(r) || IS_STD_REGNO(r))
 #define IS_GROUP1_REGNO(r)        (IS_ADDR_OR_INDEX_REGNO(r) || IS_BK_REGNO(r))
+#define IS_INT_CALL_SAVED_REGNO(r) (((r) == R4_REGNO) || ((r) == R5_REGNO) \
+                                    || ((r) == R8_REGNO))
+#define IS_FLOAT_CALL_SAVED_REGNO(r) (((r) == R6_REGNO) || ((r) == R7_REGNO))
 
 #define IS_PSEUDO_REGNO(r)            ((r) >= FIRST_PSEUDO_REGISTER)
 #define IS_R0R1_OR_PSEUDO_REGNO(r)    (IS_R0R1_REGNO(r) || IS_PSEUDO_REGNO(r))
@@ -639,8 +642,8 @@ extern const char *c4x_rpts_cycles_string, *c4x_cpu_version_string;
    registers.  */
 
 #define HARD_REGNO_CALL_PART_CLOBBERED(REGNO, MODE)		              \
-     ((((REGNO) == R6_REGNO || (REGNO) == R7_REGNO) && ! ((MODE) == QFmode))  \
-      || (((REGNO) == R4_REGNO || (REGNO) == R5_REGNO || (REGNO == R8_REGNO)) \
+     ((IS_FLOAT_CALL_SAVED_REGNO (REGNO) && ! ((MODE) == QFmode))  	      \
+      || (IS_INT_CALL_SAVED_REGNO (REGNO))				      \
 	  && ! ((MODE) == QImode || (MODE) == HImode || (MODE) == Pmode)))
 
 /* Specify the modes required to caller save a given hard regno.  */
@@ -1057,8 +1060,7 @@ enum reg_class
   for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)	\
     if (regs_ever_live[regno] && ! call_used_regs[regno])	\
       offset += TARGET_PRESERVE_FLOAT				\
-		&& ((regno == R6_REGNO) || (regno == R7_REGNO)) \
-		? 2 : 1;					\
+		&& IS_FLOAT_CALL_SAVED_REGNO (regno) ? 2 : 1;	\
   (DEPTH) = -(offset + get_frame_size ());			\
 }
 
@@ -1077,8 +1079,7 @@ enum reg_class
   for (regno = 0; regno < FIRST_PSEUDO_REGISTER; regno++)	\
     if (regs_ever_live[regno] && ! call_used_regs[regno])	\
       offset += TARGET_PRESERVE_FLOAT				\
-		&& ((regno == R6_REGNO) || (regno == R7_REGNO)) \
-		? 2 : 1;					\
+		&& IS_FLOAT_CALL_SAVED_REGNO (regno) ? 2 : 1;	\
   (OFFSET) = -(offset + get_frame_size ());			\
 }