fastmath:
-fasynchronous-unwind-tables [enabled]
-fbranch-count-reg [enabled]
-fcommon [enabled]
-fdce [enabled]
-fdelete-null-pointer-checks [enabled]
-fdse [enabled]
-fearly-inlining [enabled]
-fgcse-lm [enabled]
-finline-functions-called-once [enabled]
-fivopts [enabled]
-fjump-tables [enabled]
-fmath-errno [enabled]
-fmove-loop-invariants [enabled]
-fpeephole [enabled]
-fprefetch-loop-arrays [enabled]
-frename-registers [enabled]
-frtti [enabled]
-fsched-critical-path-heuristic [enabled]
-fsched-dep-count-heuristic [enabled]
-fsched-group-heuristic [enabled]
-fsched-interblock [enabled]
-fsched-last-insn-heuristic [enabled]
-fsched-rank-heuristic [enabled]
-fsched-spec [enabled]
-fsched-spec-insn-heuristic [enabled]
-fsched-stalled-insns-dep [enabled]
-fshort-enums [enabled]
-fsigned-zeros [enabled]
-fsplit-ivs-in-unroller [enabled]
-fno-threadsafe-statics [enabled]
-ftoplevel-reorder [enabled]
-ftrapping-math [enabled]
-ftree-cselim [enabled]
-ftree-forwprop [enabled]
-ftree-loop-if-convert [enabled]
-ftree-loop-im [enabled]
-ftree-loop-ivcanon [enabled]
-ftree-loop-optimize [enabled]
-ftree-phiprop [enabled]
-ftree-pta [enabled]
-ftree-reassoc [enabled]
-ftree-scev-cprop [enabled]
-ftree-slp-vectorize [enabled]
-ftree-vect-loop-version [enabled]
-funit-at-a-time [enabled]
-fvar-tracking [enabled]
-fvar-tracking-assignments [enabled]
-fvect-cost-model [enabled]
-fweb [enabled]
fast:
-falign-functions [enabled]
-falign-jumps [enabled]
-falign-labels [enabled]
-falign-loops [enabled]
-fasynchronous-unwind-tables [enabled]
-fbranch-count-reg [enabled]
-fcaller-saves [enabled]
-fcombine-stack-adjustments [enabled]
-fcommon [enabled]
-fcompare-elim [enabled]
-fcprop-registers [enabled]
-fcrossjumping [enabled]
-fcse-follow-jumps [enabled]
-fcx-limited-range [enabled]
-fdce [enabled]
-fdefer-pop [enabled]
-fdelete-null-pointer-checks [enabled]
-fdevirtualize [enabled]
-fdse [enabled]
-fearly-inlining [enabled]
-fexpensive-optimizations [enabled]
-ffinite-math-only [enabled]
-fforward-propagate [enabled]
-fgcse [enabled]
-fgcse-after-reload [enabled]
-fgcse-lm [enabled]
-fguess-branch-probability [enabled]
-fif-conversion [enabled]
-fif-conversion2 [enabled]
-finline-functions [enabled]
-finline-functions-called-once [enabled]
-finline-small-functions [enabled]
-fipa-cp [enabled]
-fipa-cp-clone [enabled]
-fipa-profile [enabled]
-fipa-pure-const [enabled]
-fipa-reference [enabled]
-fipa-sra [enabled]
-fivopts [enabled]
-fjump-tables [enabled]
-fmerge-constants [enabled]
-fmove-loop-invariants [enabled]
-foptimize-register-move [enabled]
-foptimize-sibling-calls [enabled]
-fpeephole [enabled]
-fpeephole2 [enabled]
-fpredictive-commoning [enabled]
-fprefetch-loop-arrays [enabled]
-fregmove [enabled]
-frename-registers [enabled]
-freorder-blocks [enabled]
-freorder-functions [enabled]
-frerun-cse-after-loop [enabled]
-frtti [enabled]
-fsched-critical-path-heuristic [enabled]
-fsched-dep-count-heuristic [enabled]
-fsched-group-heuristic [enabled]
-fsched-interblock [enabled]
-fsched-last-insn-heuristic [enabled]
-fsched-rank-heuristic [enabled]
-fsched-spec [enabled]
-fsched-spec-insn-heuristic [enabled]
-fsched-stalled-insns-dep [enabled]
-fschedule-insns2 [enabled]
-fshort-enums [enabled]
-fsplit-ivs-in-unroller [enabled]
-fsplit-wide-types [enabled]
-fstrict-aliasing [enabled]
-fthread-jumps [enabled]
-fno-threadsafe-statics [enabled]
-ftoplevel-reorder [enabled]
-ftree-bit-ccp [enabled]
-ftree-builtin-call-dce [enabled]
-ftree-ccp [enabled]
-ftree-ch [enabled]
-ftree-copy-prop [enabled]
-ftree-copyrename [enabled]
-ftree-cselim [enabled]
-ftree-dce [enabled]
-ftree-dominator-opts [enabled]
-ftree-dse [enabled]
-ftree-forwprop [enabled]
-ftree-fre [enabled]
-ftree-loop-distribute-patterns [enabled]
-ftree-loop-if-convert [enabled]
-ftree-loop-im [enabled]
-ftree-loop-ivcanon [enabled]
-ftree-loop-optimize [enabled]
-ftree-phiprop [enabled]
-ftree-pre [enabled]
-ftree-pta [enabled]
-ftree-reassoc [enabled]
-ftree-scev-cprop [enabled]
-ftree-sink [enabled]
-ftree-slp-vectorize [enabled]
-ftree-sra [enabled]
-ftree-switch-conversion [enabled]
-ftree-ter [enabled]
-ftree-vect-loop-version [enabled]
-ftree-vectorize [enabled]
-ftree-vrp [enabled]
-funit-at-a-time [enabled]
-funsafe-math-optimizations [enabled]
-funswitch-loops [enabled]
-fvar-tracking [enabled]
-fvar-tracking-assignments [enabled]
-fvect-cost-model [enabled]
-fweb [enabled]
diff fast fastmath
1,4d0
< -falign-functions [enabled]
< -falign-jumps [enabled]
< -falign-labels [enabled]
< -falign-loops [enabled]
7,8d2
< -fcaller-saves [enabled]
< -fcombine-stack-adjustments [enabled]
10,14d3
< -fcompare-elim [enabled]
< -fcprop-registers [enabled]
< -fcrossjumping [enabled]
< -fcse-follow-jumps [enabled]
< -fcx-limited-range [enabled]
16d4
< -fdefer-pop [enabled]
18d5
< -fdevirtualize [enabled]
21,25d7
< -fexpensive-optimizations [enabled]
< -ffinite-math-only [enabled]
< -fforward-propagate [enabled]
< -fgcse [enabled]
< -fgcse-after-reload [enabled]
27,30d8
< -fguess-branch-probability [enabled]
< -fif-conversion [enabled]
< -fif-conversion2 [enabled]
< -finline-functions [enabled]
32,38d9
< -finline-small-functions [enabled]
< -fipa-cp [enabled]
< -fipa-cp-clone [enabled]
< -fipa-profile [enabled]
< -fipa-pure-const [enabled]
< -fipa-reference [enabled]
< -fipa-sra [enabled]
41c12
< -fmerge-constants [enabled]
---
> -fmath-errno [enabled]
43,44d13
< -foptimize-register-move [enabled]
< -foptimize-sibling-calls [enabled]
46,47d14
< -fpeephole2 [enabled]
< -fpredictive-commoning [enabled]
49d15
< -fregmove [enabled]
51,53d16
< -freorder-blocks [enabled]
< -freorder-functions [enabled]
< -frerun-cse-after-loop [enabled]
64d26
< -fschedule-insns2 [enabled]
65a28
> -fsigned-zeros [enabled]
67,69d29
< -fsplit-wide-types [enabled]
< -fstrict-aliasing [enabled]
< -fthread-jumps [enabled]
72,77c32
< -ftree-bit-ccp [enabled]
< -ftree-builtin-call-dce [enabled]
< -ftree-ccp [enabled]
< -ftree-ch [enabled]
< -ftree-copy-prop [enabled]
< -ftree-copyrename [enabled]
---
> -ftrapping-math [enabled]
79,81d33
< -ftree-dce [enabled]
< -ftree-dominator-opts [enabled]
< -ftree-dse [enabled]
83,84d34
< -ftree-fre [enabled]
< -ftree-loop-distribute-patterns [enabled]
90d39
< -ftree-pre [enabled]
94d42
< -ftree-sink [enabled]
96,98d43
< -ftree-sra [enabled]
< -ftree-switch-conversion [enabled]
< -ftree-ter [enabled]
100,101d44
< -ftree-vectorize [enabled]
< -ftree-vrp [enabled]
103,104d45
< -funsafe-math-optimizations [enabled]
< -funswitch-loops [enabled]