Tidy up bsd.cpu.mk for X86 CPUs:

- Do not limit recent processors to "prescott" class for i386 target.  There
is no reason for this hack because clang is default now.  On top of that, it
will only grow indefinitely over time.
- Add more CPUTYPEs, i.e., "athlon-fx", "core-avx2", "atom", "penryn", and
"yonah".  Note "penryn" and "yonah" are intentionally undocumented because
they are not supported by gcc and marked deprecated by clang.
- Add more CPUTYPE aliases, i.e., "barcelona" (-> amdfam10), "westmere" and
"nehalem" (-> corei7).  Note these are intentionally undocumented because
they are not supported by (base) gcc and/or clang.  However, LLVM (backend)
seems to "know" the differences.  Most likely, they were deprecated with
other vendor code names and clang did not bother implementing them at all.
- Add i686 to MACHINE_CPU for "c3-2" (VIA Nehemiah).  Both gcc & clang treat
it like an i686-class processor.
- Add IDT "winchip2" and "winchip-c6" for completeness (undocumented).
- Order processors per make.conf example, i.e., CPU vendors and models.
- Tidy up make.conf example, i.e., remove "by gcc" (because we have aliases)
and remove "prescott" from AMD64 architecture (because it is not correct).

2 files changed, 49 insertions, 36 deletions

diff --git a/share/examples/etc/make.conf b/share/examples/etc/make.conf
index 6ba5a4e..df5e225 100644
--- a/share/examples/etc/make.conf
+++ b/share/examples/etc/make.conf
@@ -28,24 +28,25 @@
 # of CFLAGS to contain the appropriate optimization directive to cc.
 # The automatic setting of CFLAGS may be overridden using the
 # NO_CPU_CFLAGS variable below.
-# Currently the following CPU types are recognized by gcc:
+# Currently the following CPU types are recognized:
 #   Intel x86 architecture:
 #       (AMD CPUs)	opteron-sse3, athlon64-sse3, k8-sse3, opteron,
-#			athlon64, k8, athlon-mp, athlon-xp, athlon-4,
-#			athlon-tbird, athlon, k7, geode, k6-3, k6-2, k6, k5
+#			athlon64, athlon-fx, k8, athlon-mp, athlon-xp,
+#			athlon-4, athlon-tbird, athlon, k7, geode, k6-3,
+#			k6-2, k6
 #       (Intel CPUs)	core2, core, nocona, pentium4m, pentium4, prescott,
 #			pentium3m, pentium3, pentium-m, pentium2,
 #			pentiumpro, pentium-mmx, pentium, i486
 #       (VIA CPUs)	c7, c3-2, c3
 #   AMD64 architecture:	opteron-sse3, athlon64-sse3, k8-sse3, opteron,
-#			athlon64, k8, core2, nocona, prescott
+#			athlon64, k8, core2, nocona
 #   Intel ia64 architecture:	itanium2, itanium
 #   SPARC-V9 architecture:	v9 (generic 64-bit V9), ultrasparc (default
 #				if omitted), ultrasparc3
 # Additionally the following CPU types are recognized by clang:
 #   Intel x86 architecture (for both amd64 and i386):
 #       (AMD CPUs)	bdver2, bdver1, btver1, amdfam10
-#       (Intel CPUs)	core-avx-i, corei7-avx, corei7
+#       (Intel CPUs)	core-avx2, core-avx-i, corei7-avx, corei7, atom
 #
 # (?= allows to buildworld for a different CPUTYPE.)
 #
diff --git a/share/mk/bsd.cpu.mk b/share/mk/bsd.cpu.mk
index af39561..2b5d452 100644
--- a/share/mk/bsd.cpu.mk
+++ b/share/mk/bsd.cpu.mk
@@ -27,9 +27,13 @@ MACHINE_CPU = mips
 # between e.g. i586 and pentium)
 
 . if ${MACHINE_CPUARCH} == "i386"
-.  if ${CPUTYPE} == "nocona" || ${CPUTYPE} == "core" || \
-    ${CPUTYPE} == "core2" || ${CPUTYPE} == "corei7" || \
-    ${CPUTYPE} == "corei7-avx" || ${CPUTYPE} == "core-avx-i"
+.  if ${CPUTYPE} == "barcelona"
+CPUTYPE = amdfam10
+.  elif ${CPUTYPE} == "k7"
+CPUTYPE = athlon
+.  elif ${CPUTYPE} == "westmere" || ${CPUTYPE} == "nehalem"
+CPUTYPE = corei7
+.  elif ${CPUTYPE} == "core"
 CPUTYPE = prescott
 .  elif ${CPUTYPE} == "p4"
 CPUTYPE = pentium4
@@ -49,18 +53,13 @@ CPUTYPE = pentiumpro
 CPUTYPE = pentium-mmx
 .  elif ${CPUTYPE} == "i586"
 CPUTYPE = pentium
-.  elif ${CPUTYPE} == "opteron-sse3" || ${CPUTYPE} == "athlon64-sse3" || \
-    ${CPUTYPE} == "k8-sse3" || ${CPUTYPE} == "amdfam10" || \
-    ${CPUTYPE} == "btver1" || ${CPUTYPE} == "bdver1" || ${CPUTYPE} == "bdver2"
-CPUTYPE = prescott
-.  elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
-    ${CPUTYPE} == "k8"
-CPUTYPE = athlon-mp
-.  elif ${CPUTYPE} == "k7"
-CPUTYPE = athlon
 .  endif
 . elif ${MACHINE_CPUARCH} == "amd64"
-.  if ${CPUTYPE} == "prescott"
+.  if ${CPUTYPE} == "barcelona"
+CPUTYPE = amdfam10
+.  elif ${CPUTYPE} == "westmere" || ${CPUTYPE} == "nehalem"
+CPUTYPE = corei7
+.  elif ${CPUTYPE} == "prescott"
 CPUTYPE = nocona
 .  endif
 . elif ${MACHINE_ARCH} == "sparc64"
@@ -87,11 +86,11 @@ CPUTYPE = ultrasparc3
 _CPUCFLAGS = -march=i686 -falign-functions=0 -falign-jumps=0 -falign-loops=0
 .  elif ${CPUTYPE} == "k5"
 _CPUCFLAGS = -march=pentium
-.  elif ${CPUTYPE} == "core2"
-_CPUCFLAGS = -march=prescott
+.  elif ${CPUTYPE} == "c7"
+_CPUCFLAGS = -march=c3-2
 .  else
 _CPUCFLAGS = -march=${CPUTYPE}
-.  endif # GCC on 'i386'
+.  endif
 . elif ${MACHINE_CPUARCH} == "amd64"
 _CPUCFLAGS = -march=${CPUTYPE}
 . elif ${MACHINE_CPUARCH} == "arm"
@@ -143,7 +142,7 @@ _CPUCFLAGS = -mcpu=ultrasparc3
 # presence of a CPU feature.
 
 . if ${MACHINE_CPUARCH} == "i386"
-.  if ${CPUTYPE} == "bdver1" || ${CPUTYPE} == "bdver2"
+.  if ${CPUTYPE} == "bdver2" || ${CPUTYPE} == "bdver1"
 MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
 .  elif ${CPUTYPE} == "btver1"
 MACHINE_CPU = ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
@@ -151,7 +150,8 @@ MACHINE_CPU = ssse3 sse4a sse3 sse2 sse mmx k6 k5 i586
 MACHINE_CPU = athlon-xp athlon k7 3dnow sse4a sse3 sse2 sse mmx k6 k5 i586
 .  elif ${CPUTYPE} == "opteron-sse3" || ${CPUTYPE} == "athlon64-sse3"
 MACHINE_CPU = athlon-xp athlon k7 3dnow sse3 sse2 sse mmx k6 k5 i586
-.  elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64"
+.  elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
+    ${CPUTYPE} == "athlon-fx"
 MACHINE_CPU = athlon-xp athlon k7 3dnow sse2 sse mmx k6 k5 i586
 .  elif ${CPUTYPE} == "athlon-mp" || ${CPUTYPE} == "athlon-xp" || \
     ${CPUTYPE} == "athlon-4"
@@ -164,19 +164,17 @@ MACHINE_CPU = 3dnow mmx k6 k5 i586
 MACHINE_CPU = mmx k6 k5 i586
 .  elif ${CPUTYPE} == "k5"
 MACHINE_CPU = k5 i586
-.  elif ${CPUTYPE} == "c3"
-MACHINE_CPU = 3dnow mmx i586
-.  elif ${CPUTYPE} == "c3-2"
-MACHINE_CPU = sse mmx i586
-.  elif ${CPUTYPE} == "c7"
-MACHINE_CPU = sse3 sse2 sse i686 mmx i586
-.  elif ${CPUTYPE} == "corei7-avx" || ${CPUTYPE} == "core-avx-i"
+.  elif ${CPUTYPE} == "corei-avx2"
+MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
+.  elif ${CPUTYPE} == "core-avx-i" || ${CPUTYPE} == "corei7-avx"
 MACHINE_CPU = avx sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
 .  elif ${CPUTYPE} == "corei7"
 MACHINE_CPU = sse42 sse41 ssse3 sse3 sse2 sse i686 mmx i586
-.  elif ${CPUTYPE} == "core2"
+.  elif ${CPUTYPE} == "penryn"
+MACHINE_CPU = sse41 ssse3 sse3 sse2 sse i686 mmx i586
+.  elif ${CPUTYPE} == "atom" || ${CPUTYPE} == "core2"
 MACHINE_CPU = ssse3 sse3 sse2 sse i686 mmx i586
-.  elif ${CPUTYPE} == "prescott"
+.  elif ${CPUTYPE} == "yonah" || ${CPUTYPE} == "prescott"
 MACHINE_CPU = sse3 sse2 sse i686 mmx i586
 .  elif ${CPUTYPE} == "pentium4" || ${CPUTYPE} == "pentium4m" || \
     ${CPUTYPE} == "pentium-m"
@@ -191,10 +189,20 @@ MACHINE_CPU = i686 i586
 MACHINE_CPU = mmx i586
 .  elif ${CPUTYPE} == "pentium"
 MACHINE_CPU = i586
+.  elif ${CPUTYPE} == "c7"
+MACHINE_CPU = sse3 sse2 sse i686 mmx i586
+.  elif ${CPUTYPE} == "c3-2"
+MACHINE_CPU = sse i686 mmx i586
+.  elif ${CPUTYPE} == "c3"
+MACHINE_CPU = 3dnow mmx i586
+.  elif ${CPUTYPE} == "winchip2"
+MACHINE_CPU = 3dnow mmx
+.  elif ${CPUTYPE} == "winchip-c6"
+MACHINE_CPU = mmx
 .  endif
 MACHINE_CPU += i486
 . elif ${MACHINE_CPUARCH} == "amd64"
-.  if ${CPUTYPE} == "bdver1" || ${CPUTYPE} == "bdver2"
+.  if ${CPUTYPE} == "bdver2" || ${CPUTYPE} == "bdver1"
 MACHINE_CPU = xop avx sse42 sse41 ssse3 sse4a sse3
 .  elif ${CPUTYPE} == "btver1"
 MACHINE_CPU = ssse3 sse4a sse3
@@ -204,13 +212,17 @@ MACHINE_CPU = k8 3dnow sse4a sse3
     ${CPUTYPE} == "k8-sse3"
 MACHINE_CPU = k8 3dnow sse3
 .  elif ${CPUTYPE} == "opteron" || ${CPUTYPE} == "athlon64" || \
-    ${CPUTYPE} == "k8"
+    ${CPUTYPE} == "athlon-fx" || ${CPUTYPE} == "k8"
 MACHINE_CPU = k8 3dnow
-.  elif ${CPUTYPE} == "corei7-avx" || ${CPUTYPE} == "core-avx-i"
+.  elif ${CPUTYPE} == "corei-avx2"
+MACHINE_CPU = avx2 avx sse42 sse41 ssse3 sse3
+.  elif ${CPUTYPE} == "core-avx-i" || ${CPUTYPE} == "corei7-avx"
 MACHINE_CPU = avx sse42 sse41 ssse3 sse3
 .  elif ${CPUTYPE} == "corei7"
 MACHINE_CPU = sse42 sse41 ssse3 sse3
-.  elif ${CPUTYPE} == "core2"
+.  elif ${CPUTYPE} == "penryn"
+MACHINE_CPU = sse41 ssse3 sse3
+.  elif ${CPUTYPE} == "atom" || ${CPUTYPE} == "core2"
 MACHINE_CPU = ssse3 sse3
 .  elif ${CPUTYPE} == "nocona"
 MACHINE_CPU = sse3