[Bug target/50721] [4.6/4.7 Regression] Segfault of -O0 compiled program on x86_64 related to register allocator

[bernds at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50721

--- Comment #8 from Bernd Schmidt <bernds at gcc dot gnu.org> 2011-10-14 
13:23:58 UTC ---
It looks like gsl_poly_dd_taylor overwrites part of the caller's stack frame.
Specifically, this statement

w[size - 1] = 1.0;

appears to go out of bounds. Can someone who understands Fortran check the
source whether it's actually valid?