x87test.c output (x87inline.h Rev 1.01)
Opteron 248 (2.2 GHz) on SuSE Linux (64-bit)
gcc 3.3 -m32 -O3 -ffast-math

sincos:
Default:
    sum = 2.00000696427020e+07
    CPU time = 1.9 seconds.
In-line:
    sum = 2.00000696427020e+07
    CPU time = 1.44 seconds.

atan2:
Default:
    sum = 4.17421689313004e+07
    CPU time = 1.71 seconds.
In-line:
    sum = 4.17421689313004e+07
    CPU time = 1.49 seconds.

exp:
Default:
    sum = 5.00013168762230e+07
    CPU time = 4.02 seconds.
In-line:
    sum = 5.00013168762230e+07
    CPU time = 2.97 seconds.

pow:
Default:
    sum = 4.56558765935041e+08
    CPU time = 3.22 seconds.
In-line:
    sum = 4.56558765935041e+08
    CPU time = 1.96 seconds.