O2FLAGS="-fno-align-functions
-fno-align-jumps 
-fno-align-labels
-fno-align-loops 
-fno-caller-saves 
-fno-code-hoisting 
-fno-crossjumping 
-fno-cse-follow-jumps 
-fno-cse-skip-blocks 
-fno-delete-null-pointer-checks 
-fno-devirtualize 
-fno-devirtualize-speculatively 
-fno-expensive-optimizations 
-fno-finite-loops 
-fno-gcse  -fno-gcse-lm  
-fno-hoist-adjacent-loads 
-fno-inline-functions 
-fno-inline-small-functions 
-fno-indirect-inlining 
-fno-ipa-bit-cp  -fno-ipa-cp  -fno-ipa-icf 
-fno-ipa-ra  -fno-ipa-sra  -fno-ipa-vrp 
-fno-isolate-erroneous-paths-dereference 
-fno-lra-remat 
-fno-optimize-sibling-calls 
-fno-optimize-strlen 
-fno-partial-inlining 
-fno-peephole2 
-fno-reorder-blocks-and-partition
-fno-reorder-functions 
-fno-rerun-cse-after-loop  
-fno-schedule-insns  -fno-schedule-insns2 
-fno-sched-interblock  -fno-sched-spec 
-fno-store-merging 
-fno-strict-aliasing 
-fno-thread-jumps 
-fno-tree-builtin-call-dce 
-fno-tree-loop-vectorize 
-fno-tree-pre 
-fno-tree-slp-vectorize 
-fno-tree-switch-conversion
-fno-tree-tail-merge 
-fno-tree-vrp"
#-fno-reorder-blocks-algorithm=stc 
#-fno-vect-cost-model=very-cheap"

O3FLAGS="-fno-gcse-after-reload 
-fno-ipa-cp-clone
-fno-loop-interchange 
-fno-loop-unroll-and-jam 
-fno-peel-loops 
-fno-predictive-commoning 
-fno-split-loops 
-fno-split-paths 
-fno-tree-loop-distribution 
-fno-tree-partial-pre 
-fno-unswitch-loops 
-fno-version-loops-for-strides"
#-fno-vect-cost-model=dynamic 

for i in $O2FLAGS; do 
	rm spectre_v2-gcc-O2 > /dev/null; CFLAGS="$i" make spectre_v2-gcc-O2; ./spectre_v2-gcc-O2 2> /dev/null > /dev/null && echo -e "\033[32m ok $i\033[0m"
done
for i in $O3FLAGS; do 
	rm spectre_v2-gcc-O3 > /dev/null; CFLAGS="$i" make spectre_v2-gcc-O3; ./spectre_v2-gcc-O3 2> /dev/null > /dev/null && echo -e "\033[32m ok $i\033[0m"
done