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[Bug math/14412] Removal of sysdeps/x86_64/fpu/s_sincos.S causes pdf rendering time regression


http://sourceware.org/bugzilla/show_bug.cgi?id=14412

--- Comment #6 from Markus Trippelsdorf <markus at trippelsdorf dot de> 2012-08-09 10:14:25 UTC ---
Using Intel's SSE2 sinf and cosf
http://sourceware.org/ml/libc-alpha/2012-06/msg00692.html solves the issue.

It only takes ~26 seconds to open the testcase:

# Overhead      Command  Shared Object                  Symbol

    11.16%       okular  libpoppler.so.26.0.0        [.]
SplashXPathScanner::computeIntersections()
    11.04%       okular  libpoppler.so.26.0.0        [.] void
std::__introsort_loop<SplashIntersect*, long,
cmpIntersectFunctor>(SplashIntersect*, Sp
lashIntersect*, long, cmpIntersectFunctor) [clone .isra.15]
     8.27%       okular  libpoppler.so.26.0.0        [.]
Gfx::doRadialShFill(GfxRadialShading*)
     5.43%       okular  libc-2.16.90.so             [.] _int_malloc
     5.31%       okular  libm-2.16.90.so             [.] __cosf
     5.16%       okular  libpoppler.so.26.0.0        [.]
SplashXPathScanner::addIntersection(double, double, unsigned int, int, int,
int)
     5.01%       okular  libm-2.16.90.so             [.] __sinf
     2.98%       okular  libc-2.16.90.so             [.] _int_free
     2.83%       okular  libpoppler.so.26.0.0        [.] Lexer::getObj(Object*,
int)

I had to manually hook up the new functions with:
#undef sin
#define sin sinf
#undef cos
#define cos cosf

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