https://gcc.gnu.org/bugzilla/show_bug.cgi?id=323
--- Comment #197 from Vincent Lefèvre <vincent-gcc at vinc17 dot net> --- (In reply to Manuel López-Ibáñez from comment #196) > Also, the official FAQ for this (https://gcc.gnu.org/bugs/#nonbugs_general) > is seriously lacking info and outdated. From now on, I'll point people to: > https://gcc.gnu.org/wiki/FAQ#PR323 Note that this bug was mainly about the excess precision of x87 FPU, though its summary just says "optimized code gives strange floating point results". But the users should be aware that the floating-point results can still depend on the optimization level because this is allowed by the ISO C standard. For instance, if one has code like x*y+z, a FMA can be used or not depending on the target architecture and the optimization level (see also bug 37845 about this), and this can change the results. -- You are receiving this mail because: You are on the CC list for the bug. -- To UNSUBSCRIBE, email to debian-gcc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/bug-323-5724-amhzgog...@http.gcc.gnu.org/bugzilla/
