GNU C Library master sources branch master updated. glibc-2.22-606-gc9afcaa

hjl@sourceware.org hjl@sourceware.org
Tue Dec 15 19:48:00 GMT 2015


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http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=c9afcaaafaf9126a973883528eed8d0058a264c0

commit c9afcaaafaf9126a973883528eed8d0058a264c0
Author: H.J. Lu <hjl.tools@gmail.com>
Date:   Tue Dec 15 11:46:54 2015 -0800

    Enable Silvermont optimizations for Knights Landing
    
    Knights Landing processor is based on Silvermont.  This patch enables
    Silvermont optimizations for Knights Landing.
    
    	* sysdeps/x86/cpu-features.c (init_cpu_features): Enable
    	Silvermont optimizations for Knights Landing.

diff --git a/ChangeLog b/ChangeLog
index 7995a58..5bff90f 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+2015-12-15  H.J. Lu  <hongjiu.lu@intel.com>
+
+	* sysdeps/x86/cpu-features.c (init_cpu_features): Enable
+	Silvermont optimizations for Knights Landing.
+
 2015-12-15  Andreas Schwab  <schwab@suse.de>
 
 	[BZ #17197]
diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c
index fba3ef0..aff894c 100644
--- a/sysdeps/x86/cpu-features.c
+++ b/sysdeps/x86/cpu-features.c
@@ -78,6 +78,9 @@ init_cpu_features (struct cpu_features *cpu_features)
 	      cpu_features->feature[index_Slow_BSF] |= bit_Slow_BSF;
 	      break;
 
+	    case 0x57:
+	      /* Knights Landing.  Enable Silvermont optimizations.  */
+
 	    case 0x37:
 	    case 0x4a:
 	    case 0x4d:

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

Summary of changes:
 ChangeLog                  |    5 +++++
 sysdeps/x86/cpu-features.c |    3 +++
 2 files changed, 8 insertions(+), 0 deletions(-)


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