From: Andy Polyakov <appro@openssl.org>
Date: Mon, 4 Mar 2013 19:05:04 +0000 (+0100)
Subject: x86cpuid.pl: make it work with older CPUs.
X-Git-Tag: master-pre-reformat~1346^2~1
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=5702e965d759dde8a098d8108660721ba2b93a7d;p=openssl

x86cpuid.pl: make it work with older CPUs.

PR: 3005
---

diff --git a/crypto/x86cpuid.pl b/crypto/x86cpuid.pl
index 3b6c469d08..e8a75181af 100644
--- a/crypto/x86cpuid.pl
+++ b/crypto/x86cpuid.pl
@@ -69,6 +69,7 @@ for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
 	&inc	("esi");		# number of cores
 
 	&mov	("eax",1);
+	&xor	("ecx","ecx");
 	&cpuid	();
 	&bt	("edx",28);
 	&jnc	(&label("generic"));
@@ -102,6 +103,7 @@ for (@ARGV) { $sse2=1 if (/-DOPENSSL_IA32_SSE2/); }
 
 &set_label("nocacheinfo");
 	&mov	("eax",1);
+	&xor	("ecx","ecx");
 	&cpuid	();
 	&and	("edx",0xbfefffff);	# force reserved bits #20, #30 to 0
 	&cmp	("ebp",0);