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Re: gcc optimization option flags


Thank you very much and I am also able see the saem with gcc 4.2.4 native tools.

Andrew Haley wrote:
M R Swami Reddy wrote:

Thank you very much for your quick response.
But -fverbose-asm and -save-temps doesn't help to list the flags.

For me it provides:


# options enabled:  -falign-loops -fargument-alias
# -fasynchronous-unwind-tables -fauto-inc-dec -fbranch-count-reg
# -fcaller-saves -fcommon -fcprop-registers -fcrossjumping
# -fcse-follow-jumps -fdefer-pop -fdelete-null-pointer-checks
# -fearly-inlining -feliminate-unused-debug-types -fexpensive-optimizations
# -fforward-propagate -ffunction-cse -fgcse -fgcse-lm
# -fguess-branch-probability -fident -fif-conversion -fif-conversion2
# -finline-functions-called-once -finline-small-functions -fipa-pure-const
# -fipa-reference -fivopts -fkeep-static-consts -fleading-underscore
# -fmath-errno -fmerge-constants -fmerge-debug-strings
# -fmove-loop-invariants -fomit-frame-pointer -foptimize-register-move
# -foptimize-sibling-calls -fpeephole -fpeephole2 -freg-struct-return
# -fregmove -freorder-blocks -freorder-functions -frerun-cse-after-loop
# -fsched-interblock -fsched-spec -fsched-stalled-insns-dep
# -fschedule-insns2 -fsigned-zeros -fsplit-ivs-in-unroller
# -fsplit-wide-types -fstrict-aliasing -fstrict-overflow -fthread-jumps
# -ftoplevel-reorder -ftrapping-math -ftree-ccp -ftree-ch -ftree-copy-prop
# -ftree-copyrename -ftree-cselim -ftree-dce -ftree-dominator-opts
# -ftree-dse -ftree-fre -ftree-loop-im -ftree-loop-ivcanon
# -ftree-loop-optimize -ftree-parallelize-loops= -ftree-pre -ftree-reassoc
# -ftree-salias -ftree-scev-cprop -ftree-sink -ftree-sra -ftree-store-ccp
# -ftree-ter -ftree-vect-loop-version -ftree-vrp -funit-at-a-time
# -funwind-tables -fvect-cost-model -fverbose-asm -fzero-initialized-in-bss
# -m128bit-long-double -m64 -m80387 -maccumulate-outgoing-args
# -malign-stringops -mfancy-math-387 -mfp-ret-in-387 -mfused-madd -mglibc
# -mieee-fp -mmmx -mno-sse4 -mpush-args -mred-zone -msse -msse2
# -mtls-direct-seg-refs

Andrew.






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