[Buildroot] [git commit branch/2019.05.x] arch: Add support for Westmere targets

[Peter Korsgaard]

commit: https://git.buildroot.net/buildroot/commit/?id=39a9d0181938e6cb759b7bb8e8bdf3eac32020dc
branch: https://git.buildroot.net/buildroot/commit/?id=refs/heads/2019.05.x

The westmere line of x86_64 targets lies between nehalem (corei7) and
sandybridge (corei7-avx).  Allowing use of -march=westmere enables use of
AES instruction set on these targets.

Signed-off-by: Esben Haabendal <esben at geanix.com>
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
(cherry picked from commit 97651ce275198ed650da7944b967d93a79127bd9)
Signed-off-by: Peter Korsgaard <peter at korsgaard.com>
---
 arch/Config.in.x86 | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/arch/Config.in.x86 b/arch/Config.in.x86
index 85cfb9f5eb..331ee06bf0 100644
--- a/arch/Config.in.x86
+++ b/arch/Config.in.x86
@@ -101,6 +101,15 @@ config BR2_x86_corei7
 	select BR2_X86_CPU_HAS_SSSE3
 	select BR2_X86_CPU_HAS_SSE4
 	select BR2_X86_CPU_HAS_SSE42
+config BR2_x86_westmere
+	bool "westmere"
+	select BR2_X86_CPU_HAS_MMX
+	select BR2_X86_CPU_HAS_SSE
+	select BR2_X86_CPU_HAS_SSE2
+	select BR2_X86_CPU_HAS_SSE3
+	select BR2_X86_CPU_HAS_SSSE3
+	select BR2_X86_CPU_HAS_SSE4
+	select BR2_X86_CPU_HAS_SSE42
 config BR2_x86_corei7_avx
 	bool "corei7-avx"
 	select BR2_X86_CPU_HAS_MMX
@@ -235,6 +244,7 @@ config BR2_ARCH
 	default "i686"		if BR2_x86_nocona && BR2_i386
 	default "i686"		if BR2_x86_core2 && BR2_i386
 	default "i686"		if BR2_x86_corei7 && BR2_i386
+	default "i686"		if BR2_x86_westmere && BR2_i386
 	default "i686"		if BR2_x86_corei7_avx && BR2_i386
 	default "i686"		if BR2_x86_core_avx2 && BR2_i386
 	default "i686"		if BR2_x86_atom && BR2_i386
@@ -271,6 +281,7 @@ config BR2_GCC_TARGET_ARCH
 	default "corei7-avx"	if BR2_x86_corei7_avx
 	default "core-avx2"	if BR2_x86_core_avx2
 	default "atom"		if BR2_x86_atom
+	default "westmere"	if BR2_x86_westmere
 	default "silvermont"	if BR2_x86_silvermont
 	default "k8"		if BR2_x86_opteron
 	default "k8-sse3"	if BR2_x86_opteron_sse3