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commit 4c60cb0c8329dd498e9cce3735e5ee6212ad28f4
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Author: Siddhesh Poyarekar <siddhesh@redhat.com>
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Date: Wed Jun 5 13:56:19 2013 +0530
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Skip modifying exception mask and flags in SET_RESTORE_ROUND_53BIT
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We only need to set/restore rounding mode to ensure correct
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computation for non-default rounding modes.
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diff --git glibc-2.17-c758a686/sysdeps/generic/math_private.h glibc-2.17-c758a686/sysdeps/generic/math_private.h
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index 9d6ecad..e98360d 100644
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--- glibc-2.17-c758a686/sysdeps/generic/math_private.h
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+++ glibc-2.17-c758a686/sysdeps/generic/math_private.h
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@@ -446,8 +446,8 @@ default_libc_feholdexcept_setround (fenv_t *e, int r)
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# define libc_feholdexcept_setroundl default_libc_feholdexcept_setround
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#endif
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-#ifndef libc_feholdexcept_setround_53bit
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-# define libc_feholdexcept_setround_53bit libc_feholdexcept_setround
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+#ifndef libc_feholdsetround_53bit
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+# define libc_feholdsetround_53bit libc_feholdsetround
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#endif
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#ifndef libc_fetestexcept
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@@ -492,8 +492,8 @@ default_libc_feupdateenv (fenv_t *e)
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# define libc_feupdateenvl default_libc_feupdateenv
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#endif
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-#ifndef libc_feupdateenv_53bit
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-# define libc_feupdateenv_53bit libc_feupdateenv
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+#ifndef libc_feresetround_53bit
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+# define libc_feresetround_53bit libc_feresetround
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#endif
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static __always_inline int
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@@ -580,8 +580,8 @@ default_libc_feupdateenv_test (fenv_t *e, int ex)
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/* Like SET_RESTORE_ROUND, but also set rounding precision to 53 bits. */
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#define SET_RESTORE_ROUND_53BIT(RM) \
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- fenv_t __libc_save_rm __attribute__((cleanup(libc_feupdateenv_53bit))); \
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- libc_feholdexcept_setround_53bit (&__libc_save_rm, (RM))
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+ fenv_t __libc_save_rm __attribute__((cleanup(libc_feresetround_53bit))); \
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+ libc_feholdsetround_53bit (&__libc_save_rm, (RM))
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#define __nan(str) \
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(__builtin_constant_p (str) && str[0] == '\0' ? NAN : __nan (str))
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