[MPlayer-dev-eng] Re: [PATCH] configure support for Intel Core 2 and AMD Geode

[Zuxy Meng]

2006/11/28, Zuxy Meng <zuxy.meng at gmail.com>:
> Hi,
>
> core2 and geode march options already in svn version of gcc and are
> likely to be included in gcc 4.2:-)
>
> Some notes about fallbacks:
> 1. geode supports cmov, so I let it fall back to i686, same as c3-2,
> another in-order cpu.
> 2. I don't know which should be core2's fallback in 32-bit mode.
> pentium-m seems natural but somebody has observed that prescott yields
> better results (http://gentoo-wiki.com/Safe_Cflags).

Sorry, last patch is BAD. Try this one instead.

-- 
Zuxy
Beauty is truth,
While truth is beauty.
PGP KeyID: E8555ED6
-------------- next part --------------
Index: configure
===================================================================
--- configure	???????? 21349??
+++ configure	????????????
@@ -877,6 +877,8 @@
 	# K6 model 13 are the K6-2+ and K6-III+, only differing in cache size.
 	if test "$pmodel" -eq 9 -o "$pmodel" -eq 13; then
 		proc=k6-3
+	elif test "$pmodel" -eq 5 -o "$pmodel" -eq 10; then
+		proc=geode
 	elif test "$pmodel" -ge 8; then
 		proc=k6-2
 	elif test "$pmodel" -ge 6; then
@@ -918,7 +920,9 @@
 	fi
 	;;
     6) iproc=686
-	if test "$pmodel" -eq 9 -o "$pmodel" -ge 13; then
+	if test "$pmodel" -eq 15; then
+		proc=core2
+	elif test "$pmodel" -eq 9 -o "$pmodel" -ge 13; then
 		proc=pentium-m
 	elif test "$pmodel" -ge 7; then
 		proc=pentium3
@@ -1010,7 +1014,10 @@
     if test "$proc" = "prescott" ; then
       cc_check -march=$proc $cpuopt=$proc || proc=pentium4
     fi
-    if test "$proc" = "pentium4" || test "$proc" = "pentium-m" || test "$proc" = "pentium3" || test "$proc" = "pentium2" || test "$proc" = "athlon" || test "$proc" = "c3-2"; then
+    if test "$proc" = "core2" ; then
+      cc_check -march=$proc $cpuopt=$proc || proc=pentium-m
+    fi
+    if test "$proc" = "pentium4" || test "$proc" = "pentium-m" || test "$proc" = "pentium3" || test "$proc" = "pentium2" || test "$proc" = "athlon" || test "$proc" = "c3-2" || test "$proc" = "geode"; then
       cc_check -march=$proc $cpuopt=$proc  || proc=i686
     fi
     if test "$proc" = "i686" || test "$proc" = "pentium-mmx" || test "$proc" = "winchip-c6" || test "$proc" = "winchip2"; then
@@ -1101,9 +1108,14 @@
     AuthenticAMD)
       proc=k8;;
     GenuineIntel)
-      # 64-bit prescotts exist, but as far as GCC is concerned they have the
-      # same capabilities as a nocona.
-      proc=nocona;;
+      case "$pmodel" in
+      6) proc=core2;;
+      *)
+	# 64-bit prescotts exist, but as far as GCC is concerned they have the
+	# same capabilities as a nocona.
+	proc=nocona;;
+      esac
+      ;;
     *)
       proc=error;;
     esac
@@ -1125,6 +1137,9 @@
         cc_check -march=$proc $cpuopt=$proc || proc=error
       fi
       # --- Intel processors ---
+      if test "$proc" = "core2"; then
+        cc_check -march=$proc $cpuopt=$proc || proc=nocona
+      fi
       if test "$proc" = "nocona"; then
         cc_check -march=$proc $cpuopt=$proc || proc=pentium4
       fi