[openssl-commits] [openssl] master update

[Andy Polyakov]

The branch master has been updated
       via  f8418d87e191e46b81e1b9548326ab2876fa0907 (commit)
      from  ee6d9dfb39ff90a31027c51b80362d274918e3dd (commit)


- Log -----------------------------------------------------------------
commit f8418d87e191e46b81e1b9548326ab2876fa0907
Author: Andy Polyakov <appro at openssl.org>
Date:   Sun Mar 5 20:38:36 2017 +0100

    crypto/x86_64cpuid.pl: move extended feature detection upwards.
    
    Exteneded feature flags were not pulled on AMD processors, as result a
    number of extensions were effectively masked on Ryzen. It should have
    been reported for Excavator since it implements AVX2 extension, but
    apparently nobody noticed or cared...
    
    Reviewed-by: Rich Salz <rsalz at openssl.org>

-----------------------------------------------------------------------

Summary of changes:
 crypto/x86_64cpuid.pl | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/crypto/x86_64cpuid.pl b/crypto/x86_64cpuid.pl
index e08e1c4..c2a7d72 100644
--- a/crypto/x86_64cpuid.pl
+++ b/crypto/x86_64cpuid.pl
@@ -72,6 +72,16 @@ OPENSSL_ia32_cpuid:
 	cpuid
 	mov	%eax,%r11d		# max value for standard query level
 
+	cmp	\$7,%eax
+	jb	.Lno_extended_info
+
+	mov	\$7,%eax
+	xor	%ecx,%ecx
+	cpuid
+	mov	%ebx,8(%rdi)
+
+.Lno_extended_info:
+
 	xor	%eax,%eax
 	cmp	\$0x756e6547,%ebx	# "Genu"
 	setne	%al
@@ -136,14 +146,6 @@ OPENSSL_ia32_cpuid:
 	shr	\$14,%r10d
 	and	\$0xfff,%r10d		# number of cores -1 per L1D
 
-	cmp	\$7,%r11d
-	jb	.Lnocacheinfo
-
-	mov	\$7,%eax
-	xor	%ecx,%ecx
-	cpuid
-	mov	%ebx,8(%rdi)
-
 .Lnocacheinfo:
 	mov	\$1,%eax
 	cpuid