-fargument-alias
-fcaller-saves
-fcommon
-fcse-follow-jumps
-fcse-skip-blocks
-fdefer-pop
-fexpensive-optimizations
-fforce-mem
-ffunction-cse
-fgcse
-fgnu-linker
-fident
-finline
-fkeep-static-consts
-fomit-frame-pointer
-foptimize-register-move
-fpcc-struct-return
-fpeephole
-fregmove
-frerun-cse-after-loop
-frerun-loop-opt
-fsched-interblock
-fsched-spec
-fschedule-insns2
-fstrength-reduce
-fthread-jumps
-fwritable-strings
-m80387
-malign-double
-march=pentiumpro
-mcpu=pentiumpro
-mfp-ret-in-387
-mhard-float
-mieee-fp
-mno-soft-float
-mschedule-prologue

