From 3cd2d49ad5d283f06fc49fb149f00e5e590e9e32 Mon Sep 17 00:00:00 2001
From: Marius Mauch <genone@gentoo.org>
Date: Wed, 10 Jan 2007 02:26:43 +0000
Subject: Update x86 CFLAGS section, original patch by Peter Gantner (bug
 #133402)

svn path=/main/trunk/; revision=5505
---
 cnf/make.conf.x86.diff | 60 ++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 46 insertions(+), 14 deletions(-)

(limited to 'cnf')

diff --git a/cnf/make.conf.x86.diff b/cnf/make.conf.x86.diff
index 39a2bb13c..04e48b61e 100644
--- a/cnf/make.conf.x86.diff
+++ b/cnf/make.conf.x86.diff
@@ -1,5 +1,5 @@
---- make.conf	2006-03-19 18:40:11.000000000 +0100
-+++ make.conf.x86	2006-03-19 18:26:21.000000000 +0100
+--- make.conf	2007-01-10 03:22:07.410548112 +0100
++++ make.conf.x86	2007-01-10 03:22:13.206910362 +0100
 @@ -23,6 +23,15 @@
  # Example:
  #USE="X gtk gnome -alsa"
@@ -16,44 +16,76 @@
  # Host and optimization settings 
  # ==============================
  #
-@@ -33,10 +42,34 @@
+@@ -33,10 +42,65 @@
  # package (and in some cases the libraries it uses) at default optimizations
  # before reporting errors to developers.
  #
 -# Please refer to the GCC manual for a list of possible values.
+-#
+-#CFLAGS="-O2 -pipe"
 +# -mcpu=<cpu-type> means optimize code for the particular type of CPU without
 +# breaking compatibility with other CPUs.
  #
--#CFLAGS="-O2 -pipe"
 +# -march=<cpu-type> means to take full advantage of the ABI and instructions
 +# for the particular CPU; this will break compatibility with older CPUs (for
 +# example, -march=athlon-xp code will not run on a regular Athlon, and
 +# -march=i686 code will not run on a Pentium Classic.
 +#
-+# CPU types supported in gcc-3.2 and higher: athlon-xp, athlon-mp,
-+# athlon-tbird, athlon, k6, k6-2, k6-3, i386, i486, i586 (Pentium), i686
-+# (PentiumPro), pentium, pentium-mmx, pentiumpro, pentium2 (Celeron),
-+# pentium3, and pentium4.
++# CPU types supported by gcc version:
++# (Higher versions include the targets from older ones,
++# those listed on the same line are equivalent.)
++# === >=gcc-2.95
++# i386			Original Intel's i386.
++# i486			Intel's i486. (No scheduling implemented.)
++# i586, pentium	Intel Pentium with no MMX support.
++# pentium-mmx	Intel PentiumMMX based on Pentium core with MMX.
++# i686, pentiumpro	Intel PentiumPro.
++# === >=gcc-3.2
++# k6			AMD K6 with MMX.
++# k6-2, k6-3	AMD K6 with MMX and 3dNOW!.
++# pentium2		Intel Pentium2 based on PentiumPro with MMX.
++# pentium3		Intel Pentium3 based on PentiumPro with MMX and SSE.
++# pentium4		Intel Pentium4 with MMX, SSE and SSE2.
++# athlon, athlon-tbird	AMD Athlon with MMX, 3dNOW!, enhanced 3dNOW!
++#				and SSE prefetch.
++# athlon-4, athlon-xp, athlon-mp	AMD Athlon with MMX, 3dNOW!, enhanced
++#				3dNOW! and full SSE.
++# === >=gcc-3.3
++# winchip-c6	IDT Winchip C6, i486 with MMX.
++# winchip2		IDT Winchip2, i486 MMX and 3dNOW!.
++# c3			Via C3 with MMX and 3dNOW! (No scheduling implemented.)
++# === >=gcc-4.1
++# c3-2			Via C3-2 with MMX and SSE. (No scheduling implemented.)
++# pentium-m		Low power version of Intel Pentium3 with MMX, SSE, SSE2.
++#				Used by Centrino notebooks.
++# prescott		Intel Pentium4 with MMX, SSE, SSE2 and SSE3.
++# nocona		Intel Pentium4 with 64-bit extensions, MMX, SSE, SSE2
++#				and SSE3.
++# k8, opteron, athlon64, athlon-fx	AMD K8 core based CPUs with x86-64.
++#				(This supersets MMX, SSE, SSE2, 3dNOW!, enhanced 3dNOW! and
++#				64-bit extensions.)
 +#
-+# Note that Gentoo Linux 1.4 and higher include at least gcc-3.2.
++# Gentoo Linux 1.2 and below used gcc-2.95*
++# Gentoo Linux 1.4 and 2004.* had gcc-3.2
++# Gentoo Linux 2005.1 through 2006.0 use gcc-3.3
++# Gentoo Linux 2006.1 has gcc-4.1
 +# 
-+# CPU types supported in gcc-2.95*: k6, i386, i486, i586 (Pentium), i686
-+# (Pentium Pro), pentium, pentiumpro Gentoo Linux 1.2 and below use gcc-2.95*
 +#
 +# CRITICAL WARNINGS: ****************************************************** #
 +# K6 markings are deceptive. Avoid setting -march for them. See Bug #24379. #
 +# Pentium-M CPU's should not enable sse2 until at least gcc-3.4. Bug 50616. #
 +# ************************************************************************* #
- #
-+# Decent examples:
 +#
++# NOTE: the -On optimization levels are set with the letter O, not -0 (zero).
++#
++# Decent examples:
 +#CFLAGS="-mcpu=athlon-xp -O3 -pipe"
 +#CFLAGS="-march=pentium3 -O3 -pipe"
 +
  # If you set a CFLAGS above, then this line will set your default C++ flags to
  # the same settings.
  #CXXFLAGS="${CFLAGS}"
-@@ -61,7 +80,7 @@
+@@ -61,7 +125,7 @@
  # DO NOT PUT ANYTHING BUT YOUR SPECIFIC ~ARCHITECTURE IN THE LIST.
  # IF YOU ARE UNSURE OF YOUR ARCH, OR THE IMPLICATIONS, DO NOT MODIFY THIS.
  #
-- 
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