rs6000-protos.h: Protoize rs6000_hard_regno_nregs.

	* config/rs6000/rs6000-protos.h: Protoize rs6000_hard_regno_nregs.

	* config/rs6000/rs6000.c (rs6000_hard_regno_nregs): New.

	* config/rs6000/rs6000.h (HARD_REGNO_NREGS): Call
	rs6000_hard_regno_nregs.

From-SVN: r81467

4 files changed, 41 insertions, 19 deletions

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 45179bf..f98f7cd 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,12 @@
+2004-05-03  Aldy Hernandez  <aldyh@redhat.com>
+
+	* config/rs6000/rs6000-protos.h: Protoize rs6000_hard_regno_nregs.
+
+	* config/rs6000/rs6000.c (rs6000_hard_regno_nregs): New.
+
+	* config/rs6000/rs6000.h (HARD_REGNO_NREGS): Call
+	rs6000_hard_regno_nregs.
+
 2004-05-03  Eric Christopher  <echristo@redhat.com>
 
 	* config/s390/s390.c (s390_emit_prologue): Call unspec tpf
diff --git a/gcc/config/rs6000/rs6000-protos.h b/gcc/config/rs6000/rs6000-protos.h
index d368033..93ed98a 100644
--- a/gcc/config/rs6000/rs6000-protos.h
+++ b/gcc/config/rs6000/rs6000-protos.h
@@ -201,6 +201,7 @@ extern int rs6000_memory_move_cost (enum machine_mode, enum reg_class, int);
 extern bool rs6000_tls_referenced_p (rtx);
 extern int rs6000_tls_symbol_ref (rtx, enum machine_mode);
 extern void rs6000_output_dwarf_dtprel (FILE*, int, rtx);
+extern int rs6000_hard_regno_nregs (int, enum machine_mode);
 
 /* Declare functions in rs6000-c.c */
 
diff --git a/gcc/config/rs6000/rs6000.c b/gcc/config/rs6000/rs6000.c
index c405abd..b188132 100644
--- a/gcc/config/rs6000/rs6000.c
+++ b/gcc/config/rs6000/rs6000.c
@@ -3343,6 +3343,34 @@ rs6000_mode_dependent_address (rtx addr)
 
   return false;
 }
+
+/* Return number of consecutive hard regs needed starting at reg REGNO
+   to hold something of mode MODE.
+   This is ordinarily the length in words of a value of mode MODE
+   but can be less for certain modes in special long registers.
+
+   For the SPE, GPRs are 64 bits but only 32 bits are visible in
+   scalar instructions.  The upper 32 bits are only available to the
+   SIMD instructions.
+
+   POWER and PowerPC GPRs hold 32 bits worth;
+   PowerPC64 GPRs and FPRs point register holds 64 bits worth.  */
+
+int
+rs6000_hard_regno_nregs (int regno, enum machine_mode mode)
+{
+  if (FP_REGNO_P (regno))
+    return (GET_MODE_SIZE (mode) + UNITS_PER_FP_WORD - 1) / UNITS_PER_FP_WORD;
+
+  if (SPE_SIMD_REGNO_P (regno) && TARGET_SPE && SPE_VECTOR_MODE (mode))
+    return (GET_MODE_SIZE (mode) + UNITS_PER_SPE_WORD - 1) / UNITS_PER_SPE_WORD;
+
+  if (ALTIVEC_REGNO_P (regno))
+    return
+      (GET_MODE_SIZE (mode) + UNITS_PER_ALTIVEC_WORD - 1) / UNITS_PER_ALTIVEC_WORD;
+
+  return (GET_MODE_SIZE (mode) + UNITS_PER_WORD - 1) / UNITS_PER_WORD;
+}
 
 /* Try to output insns to set TARGET equal to the constant C if it can
    be done in less than N insns.  Do all computations in MODE.
diff --git a/gcc/config/rs6000/rs6000.h b/gcc/config/rs6000/rs6000.h
index f3d4493..dc57427 100644
--- a/gcc/config/rs6000/rs6000.h
+++ b/gcc/config/rs6000/rs6000.h
@@ -997,25 +997,9 @@ extern const char *rs6000_warn_altivec_long_switch;
 #define ALTIVEC_REGNO_P(N) ((N) >= FIRST_ALTIVEC_REGNO && (N) <= LAST_ALTIVEC_REGNO)
 
 /* Return number of consecutive hard regs needed starting at reg REGNO
-   to hold something of mode MODE.
-   This is ordinarily the length in words of a value of mode MODE
-   but can be less for certain modes in special long registers.
-
-   For the SPE, GPRs are 64 bits but only 32 bits are visible in
-   scalar instructions.  The upper 32 bits are only available to the
-   SIMD instructions.
-
-   POWER and PowerPC GPRs hold 32 bits worth;
-   PowerPC64 GPRs and FPRs point register holds 64 bits worth.  */
-
-#define HARD_REGNO_NREGS(REGNO, MODE)					\
-  (FP_REGNO_P (REGNO)							\
-   ? ((GET_MODE_SIZE (MODE) + UNITS_PER_FP_WORD - 1) / UNITS_PER_FP_WORD) \
-   : (SPE_SIMD_REGNO_P (REGNO) && TARGET_SPE && SPE_VECTOR_MODE (MODE))   \
-   ? ((GET_MODE_SIZE (MODE) + UNITS_PER_SPE_WORD - 1) / UNITS_PER_SPE_WORD) \
-   : ALTIVEC_REGNO_P (REGNO)						\
-   ? ((GET_MODE_SIZE (MODE) + UNITS_PER_ALTIVEC_WORD - 1) / UNITS_PER_ALTIVEC_WORD) \
-   : ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD))
+   to hold something of mode MODE.  */
+
+#define HARD_REGNO_NREGS(REGNO, MODE) rs6000_hard_regno_nregs ((REGNO), (MODE))
 
 #define HARD_REGNO_CALL_PART_CLOBBERED(REGNO, MODE)	\
   ((TARGET_32BIT && TARGET_POWERPC64			\