Correcting Athlon (SSE3 and Fx) support for configure/build of gcc

[Felyza Wishbringer <felyza at gmail dot com>]

Presently, support for the k8/Athlon64/Opteron SSE3 enhanced AMD 
processors and the Athlon-fx is in the compiler. This is wonderful, 
however, when trying to use them during compile of gcc itself, they 
aren't recognized as valid options by the configure and build. The 
present configure scripts do not recognize them as options, although 
they are listed in 
http://gcc.gnu.org/onlinedocs/gcc/i386-and-x86_002d64-Options.html

It appears that when the amdfam10 models were added to configure, that 
sse3 support was overlooked. Regarding the fx model, it was added to the 
messages regarding supported processors, however when the script is 
supposed to be setting up the flags, it is not being set up.

Regarding stability outlooks, all instruction set options used by the 
SSE3 family processors are used in the amdfam10 and barcelona models. 
The amdfam10 and barcelona models are fully supported by the configure 
scripts already, therefor any stability issues found in the SSE3 family 
would be present in the already-fully-supported-by-configure amdfam10 cpus.

Having this applied allows building with the *-sse3 or athlon-fx cpu 
types listed in documentation. The athlon64-sse3 models of note are the 
Athlon 64X2 5000+ Black Edition and Athlon 64X2 6400+ Black Edition 
which were top sellers for several months; and they support SSE3 but not 
SSE4 or ABM. Due to lack of SSE4 or ABM, they should not use the 
amdfam10 cpu type during configure.

For reference, relevant bug: 
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42786

* 2010-01-19 Felyza Wishbringer <fwishbringer@gmail.com>
- fix support for configure with athlon-fx cpu type (42786)
- add support for configure with *-sse3 cpu types (42786)

Index: gcc/config.gcc
===================================================================
--- gcc/config.gcc	(revision 156045)
+++ gcc/config.gcc	(working copy)
@@ -1144,7 +1144,7 @@
 			tmake_file="${tmake_file} i386/t-linux64"
 			need_64bit_hwint=yes
 			case X"${with_cpu}" in
-		 
Xgeneric|Xatom|Xcore2|Xnocona|Xx86-64|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx)
+		 
Xgeneric|Xatom|Xcore2|Xnocona|Xx86-64|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx|Xathlon64-sse3|Xk8-sse3|Xopteron-sse3)
 				;;
 			X)
 				if test x$with_cpu_64 = x; then
@@ -1153,7 +1153,7 @@
 				;;
 			*)
 				echo "Unsupported CPU used in --with-cpu=$with_cpu, supported 
values:" 1>&2
-				echo "generic atom core2 nocona x86-64 amdfam10 barcelona k8 
opteron athlon64 athlon-fx" 1>&2
+				echo "generic atom core2 nocona x86-64 amdfam10 barcelona k8 
opteron athlon64 athlon-fx athlon64-sse3 k8-sse3 opteron-sse3" 1>&2
 				exit 1
 				;;
 			esac
@@ -1260,7 +1260,7 @@
 		need_64bit_hwint=yes
 		use_gcc_stdint=wrap
 		case X"${with_cpu}" in
-	 
Xgeneric|Xatom|Xcore2|Xnocona|Xx86-64|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx)
+	 
Xgeneric|Xatom|Xcore2|Xnocona|Xx86-64|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx|Xathlon64-sse3|Xk8-sse3|Xopteron-sse3)
 			;;
 		X)
 			if test x$with_cpu_64 = x; then
@@ -1269,7 +1269,7 @@
 			;;
 		*)
 			echo "Unsupported CPU used in --with-cpu=$with_cpu, supported 
values:" 1>&2
-			echo "generic atom core2 nocona x86-64 amdfam10 barcelona k8 opteron 
athlon64 athlon-fx" 1>&2
+			echo "generic atom core2 nocona x86-64 amdfam10 barcelona k8 opteron 
athlon64 athlon-fx athlon64-sse3 k8-sse3 opteron-sse3" 1>&2
 			exit 1
 			;;
 		esac
@@ -1339,7 +1339,7 @@
 			if test x$enable_targets = xall; then
 				tm_defines="${tm_defines} TARGET_BI_ARCH=1"
 				case X"${with_cpu}" in
-			 
Xgeneric|Xatom|Xcore2|Xnocona|Xx86-64|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx)
+			 
Xgeneric|Xatom|Xcore2|Xnocona|Xx86-64|Xamdfam10|Xbarcelona|Xk8|Xopteron|Xathlon64|Xathlon-fx|Xathlon64-sse3|Xk8-sse3|Xopteron-sse3)
 					;;
 				X)
 					if test x$with_cpu_64 = x; then
@@ -1348,7 +1348,7 @@
 					;;
 				*)
 					echo "Unsupported CPU used in --with-cpu=$with_cpu, supported 
values:" 1>&2
-					echo "generic atom core2 nocona x86-64 amdfam10 barcelona k8 
opteron athlon64 athlon-fx" 1>&2
+					echo "generic atom core2 nocona x86-64 amdfam10 barcelona k8 
opteron athlon64 athlon-fx athlon64-sse3 k8-sse3 opteron-sse3" 1>&2
 					exit 1
 					;;
 				esac
@@ -2629,8 +2629,11 @@
       case ${target_noncanonical} in
         amdfam10-*|barcelona-*)
           with_cpu=amdfam10
+          ;;
+        k8_sse3-*|opteron_sse3-*|athlon64_sse3-*)
+          with_cpu=k8-sse3
           ;;
-        k8-*|opteron-*|athlon_64-*)
+        k8-*|opteron-*|athlon64-*|athlon_fx-*)
           with_cpu=k8
           ;;
         athlon_xp-*|athlon_mp-*|athlon_4-*)
@@ -2676,7 +2679,10 @@
         amdfam10-*|barcelona-*)
           with_cpu=amdfam10
           ;;
-        k8-*|opteron-*|athlon_64-*)
+        k8_sse3-*|opteron_sse3-*|athlon64_sse3-*)
+          with_cpu=k8-sse3
+          ;;
+        k8-*|opteron-*|athlon64-*|athlon_fx-*)
           with_cpu=k8
           ;;
         nocona-*)
@@ -2970,7 +2976,7 @@
 				esac
 				# OK
 				;;
-			"" | amdfam10 | barcelona | k8 | opteron | athlon64 | athlon-fx | 
nocona | core2 | atom | generic)
+			"" | amdfam10 | barcelona | k8-sse3 | opteron-sse3 | athlon64-sse3 | 
k8 | opteron | athlon64 | athlon-fx | nocona | core2 | atom | generic)
 				# OK
 				;;
 			*)