------- Comment #19 from dominiq at lps dot ens dot fr 2009-08-28 05:39 ------- > Why don't you go back to the original test case and see which component of > -funsafe-math-optimizations... > > -fno-signed-zeros -fno-trapping-math -fassociative-math -freciprocal-math > > is actually causing the problem.
See http://gcc.gnu.org/ml/fortran/2009-08/msg00390.html : I have dug the problem a little bit more and found that the key option is -funsafe-math-optimizations. I tried to refine that, but as usual this option is not the sum of -fassociative-math -fno-signed-zeros -fno-trapping-math -freciprocal-math as said in the manual!-( -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=40106