------- Comment #10 from fkar at nemesis-project dot org 2006-10-27 23:39 ------- Starting from http://gcc.gnu.org/onlinedocs/gcc/Optimize-Options.html#Optimize-Options I compiled both BLAS/LAPACK using the following compiler flags:
-fdefer-pop -fguess-branch-probability -fcprop-registers -fif-conversion -fif-conversion2 -ftree-ccp -ftree-dce -ftree-dominator-opts -ftree-dse -ftree-ter -ftree-lrs -ftree-sra -ftree-copyrename -ftree-fre -ftree-ch -funit-at-a-time -fmerge-constants -fthread-jumps -fcrossjumping -foptimize-sibling-calls -fcse-follow-jumps -fcse-skip-blocks -fgcse -fgcse-lm -fexpensive-optimizations -frerun-cse-after-loop -fcaller-saves -fpeephole2 -fschedule-insns -fschedule-insns2 -fsched-interblock -fsched-spec -fregmove -fstrict-aliasing -fdelete-null-pointer-checks -freorder-blocks -freorder-functions -falign-functions -falign-jumps -falign-loops -falign-labels -ftree-vrp -ftree-pre -finline-functions -funswitch-loops -fgcse-after-reload which (including -fdelayed-branch which I deliberately ommited since I got complaints for not being supported on my platform), are set to be the default flags turned on by -O3. No infinitely looping was observed now for the above test cases, which means that the bug(?) exists in some other flag(s) triggerred by -O3. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=29621
