Fwd: weird optimization in sin+cos, x86 backend

2012-02-12 Thread Janne Blomqvist
Richard Guenther wrote: > > I don't buy the argument that inlining math routines (apart from those we > already handle) would improve performance. What will improve performance is > to have separate entry points to the routines to skip errno handling, NaN/Inf > checking or rounding mode selecti

Re: Altering OpenMP emitted code

2012-02-12 Thread Jakub Jelinek
On Sat, Feb 11, 2012 at 05:20:24PM -0500, Amittai Aviram wrote: > Hi! I'm reaching the point of exhaustion in trying to understand GCC > code, so I need help. I want to change the code that GCC emits when the > source code has an OpenMP reduction clause. Sounds like you want user defined reducti