[m-rev.] diff: fix NUM_REAL_R_REGS for PowerPC

[Fergus Henderson]

Estimated hours taken: 0.25
Branches: main

Fix the setting of NUM_REAL_R_REGS for PowerPC.
(This should hopefully improve performance on Macs a little.)

configure.in:
	Treat powerpc-* the same as rs6000-* with regard to registers.
	This is needed because powerpc is just a variant of rs6000.

runtime/machdeps/rs6000_regs.h:
	Mention that this file is used for PowerPC, as well as for RS/6000.

Workspace: /home/ceres/fjh/mercury
Index: configure.in
===================================================================
RCS file: /home/mercury1/repository/mercury/configure.in,v
retrieving revision 1.314
diff -u -d -r1.314 configure.in
--- configure.in	7 Aug 2002 23:36:49 -0000	1.314
+++ configure.in	11 Sep 2002 10:53:08 -0000
@@ -2260,7 +2260,7 @@
 		NUM_REAL_R_TEMPS=6
 		HAVE_DELAY_SLOT=--have-delay-slot
 		;;
-	rs6000-*)
+	rs6000-*|powerpc-*)
 		# NUM_REAL_REGS=10
 		# but succip, sp, hp, maxfr, and curfr are real regs,
 		# so subtract 5
Index: runtime/machdeps/rs6000_regs.h
===================================================================
RCS file: /home/mercury1/repository/mercury/runtime/machdeps/rs6000_regs.h,v
retrieving revision 1.11
diff -u -d -r1.11 rs6000_regs.h
--- runtime/machdeps/rs6000_regs.h	4 Dec 2000 18:35:22 -0000	1.11
+++ runtime/machdeps/rs6000_regs.h	11 Sep 2002 10:55:36 -0000
@@ -8,7 +8,7 @@
 #define MR_MACHDEPS_RS6000_REGS_H
 
 /*
-** Machine registers MR_mr0 - MR_mr36 for the RS/6000 architecture.
+** Machine registers MR_mr0 - MR_mr36 for the RS/6000 (and PowerPC) architecture.
 **
 ** The first MR_NUM_REAL_REGS of these are real machine registers.
 ** The others are just slots in a global array.

-- 
Fergus Henderson <fjh at cs.mu.oz.au>  |  "I have always known that the pursuit
The University of Melbourne         |  of excellence is a lethal habit"
WWW: <http://www.cs.mu.oz.au/~fjh>  |     -- the last words of T. S. Garp.
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