[Bug libstdc++/11706] std::pow(T, int) implementation pessimizes code

cvs-commit at gcc dot gnu dot org gcc-bugzilla@gcc.gnu.org
Sun Feb 13 19:18:00 GMT 2005


------- Additional Comments From cvs-commit at gcc dot gnu dot org  2005-02-13 10:25 -------
Subject: Bug 11706

CVSROOT:	/cvs/gcc
Module name:	gcc
Changes by:	paolo@gcc.gnu.org	2005-02-13 10:25:02

Modified files:
	libstdc++-v3   : ChangeLog 
	libstdc++-v3/include/c_std: std_cmath.h 
Added files:
	libstdc++-v3/testsuite/26_numerics/cmath: powi.cc 

Log message:
	2005-02-13  Richard Guenther  <rguenth@gcc.gnu.org>
	Paolo Carlini  <pcarlini@suse.de>
	
	PR libstdc++/11706
	* include/c_std/std_cmath.h (pow): Use __builtin_powi[lf]
	for integer overloads.
	
	* testsuite/26_numerics/cmath/powi.cc: New.

Patches:
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/ChangeLog.diff?cvsroot=gcc&r1=1.2893&r2=1.2894
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/include/c_std/std_cmath.h.diff?cvsroot=gcc&r1=1.17&r2=1.18
http://gcc.gnu.org/cgi-bin/cvsweb.cgi/gcc/libstdc++-v3/testsuite/26_numerics/cmath/powi.cc.diff?cvsroot=gcc&r1=NONE&r2=1.1



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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=11706



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