Author: adconrad
Date: 2013-04-18 05:10:08 +0000 (Thu, 18 Apr 2013)
New Revision: 5535
Added:
glibc-package/branches/eglibc-2.17/debian/patches/i386/cvs-simd-exception.diff
Modified:
glibc-package/branches/eglibc-2.17/debian/changelog
Log:
debian/patches/i386/cvs-simd-exception.diff: Pull patch from upstream
to fix a performance regression in i386 SIMD exceptions (LP: #1157244)
Modified: glibc-package/branches/eglibc-2.17/debian/changelog
===================================================================
--- glibc-package/branches/eglibc-2.17/debian/changelog 2013-04-18 05:06:14 UTC
(rev 5534)
+++ glibc-package/branches/eglibc-2.17/debian/changelog 2013-04-18 05:10:08 UTC
(rev 5535)
@@ -26,6 +26,8 @@
avoid warnings when the awk alternative points to gawk (LP: #1156923)
* debian/patches/any/submitted-setfsid-wur.diff: Drop __wur from setfsuid
and setfsgid functions to avoid -Werror=unused-result (Closes: #701422)
+ * debian/patches/i386/cvs-simd-exception.diff: Pull patch from upstream
+ to fix a performance regression in i386 SIMD exceptions (LP: #1157244)
-- Adam Conrad <[email protected]> Thu, 07 Feb 2013 00:44:54 -0700
Added:
glibc-package/branches/eglibc-2.17/debian/patches/i386/cvs-simd-exception.diff
===================================================================
---
glibc-package/branches/eglibc-2.17/debian/patches/i386/cvs-simd-exception.diff
(rev 0)
+++
glibc-package/branches/eglibc-2.17/debian/patches/i386/cvs-simd-exception.diff
2013-04-18 05:10:08 UTC (rev 5535)
@@ -0,0 +1,21 @@
+commit 0b57daebab36f59af1d2a02616ee636a7b13ba12
+Author: Siddhesh Poyarekar <[email protected]>
+Date: Fri Jan 18 14:16:25 2013 +0530
+
+ Fix application of the exception mask
+
+ Fixes BZ #14496.
+
+diff --git a/sysdeps/i386/fpu/fenv_private.h b/sysdeps/i386/fpu/fenv_private.h
+index 03f4c97..1f8336c 100644
+--- a/sysdeps/i386/fpu/fenv_private.h
++++ b/sysdeps/i386/fpu/fenv_private.h
+@@ -176,7 +176,7 @@ libc_feupdateenv_test_sse (fenv_t *e, int ex)
+
+ /* Raise SIGFPE for any new exceptions since the hold. Expect that
+ the normal environment has all exceptions masked. */
+- if (__builtin_expect ((old_mxcsr >> 7) & cur_ex, 0))
++ if (__glibc_unlikely (~(old_mxcsr >> 7) & cur_ex))
+ __feraiseexcept (cur_ex);
+
+ /* Test for exceptions raised since the hold. */
--
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