| JSON key |
Description |
Type |
Order |
Choices |
Parameter prefix |
Start |
Stop |
Step |
Tags |
| ##base_opt |
base compiler flag |
text |
10000 |
-O3, -O0, -O1, -O2, -Os} |
|
|
|
|
base, basic, optimization |
| ##bool-branch-probabilities |
compiler flag: -fbranch-probabilities |
text |
10010 |
-fbranch-probabilities, -fno-branch-probabilities |
|
|
|
|
basic, boolean, optimization |
| ##bool-vpt |
compiler flag: -fvpt |
text |
10020 |
-fvpt, -fno-vpt |
|
|
|
|
basic, boolean, optimization |
| ##bool-branch-target-load-optimize |
compiler flag: -fbranch-target-load-optimize |
text |
10030 |
-fbranch-target-load-optimize, -fno-branch-target-load-optimize |
|
|
|
|
basic, boolean, optimization |
| ##bool-branch-target-load-optimize2 |
compiler flag: -fbranch-target-load-optimize2 |
text |
10040 |
-fbranch-target-load-optimize2, -fno-branch-target-load-optimize2 |
|
|
|
|
basic, boolean, optimization |
| ##bool-caller-saves |
compiler flag: -fcaller-saves |
text |
10050 |
-fcaller-saves, -fno-caller-saves |
|
|
|
|
basic, boolean, optimization |
| ##bool-cprop-registers |
compiler flag: -fcprop-registers |
text |
10060 |
-fcprop-registers, -fno-cprop-registers |
|
|
|
|
basic, boolean, optimization |
| ##bool-cse-follow-jumps |
compiler flag: -fcse-follow-jumps |
text |
10070 |
-fcse-follow-jumps, -fno-cse-follow-jumps |
|
|
|
|
basic, boolean, optimization |
| ##bool-cse-skip-blocks |
compiler flag: -fcse-skip-blocks |
text |
10080 |
-fcse-skip-blocks, -fno-cse-skip-blocks |
|
|
|
|
basic, boolean, optimization |
| ##bool-data-sections |
compiler flag: -fdata-sections |
text |
10090 |
-fdata-sections, -fno-data-sections |
|
|
|
|
basic, boolean, optimization |
| ##bool-delayed-branch |
compiler flag: -fdelayed-branch |
text |
10100 |
-fdelayed-branch, -fno-delayed-branch |
|
|
|
|
basic, boolean, optimization |
| ##bool-delete-null-pointer-checks |
compiler flag: -fdelete-null-pointer-checks |
text |
10110 |
-fdelete-null-pointer-checks, -fno-delete-null-pointer-checks |
|
|
|
|
basic, boolean, optimization |
| ##bool-expensive-optimizations |
compiler flag: -fexpensive-optimizations |
text |
10120 |
-fexpensive-optimizations, -fno-expensive-optimizations |
|
|
|
|
basic, boolean, optimization |
| ##bool-fast-math |
compiler flag: -ffast-math |
text |
10130 |
-ffast-math, -fno-fast-math |
|
|
|
|
basic, boolean, optimization |
| ##bool-float-store |
compiler flag: -ffloat-store |
text |
10140 |
-ffloat-store, -fno-float-store |
|
|
|
|
basic, boolean, optimization |
| ##bool-force-addr |
compiler flag: -fforce-addr |
text |
10150 |
-fforce-addr, -fno-force-addr |
|
|
|
|
basic, boolean, optimization |
| ##bool-force-mem |
compiler flag: -fforce-mem |
text |
10160 |
-fforce-mem, -fno-force-mem |
|
|
|
|
basic, boolean, optimization |
| ##bool-function-sections |
compiler flag: -ffunction-sections |
text |
10170 |
-ffunction-sections, -fno-function-sections |
|
|
|
|
basic, boolean, optimization |
| ##bool-gcse |
compiler flag: -fgcse |
text |
10180 |
-fgcse, -fno-gcse |
|
|
|
|
basic, boolean, optimization |
| ##bool-gcse-lm |
compiler flag: -fgcse-lm |
text |
10190 |
-fgcse-lm, -fno-gcse-lm |
|
|
|
|
basic, boolean, optimization |
| ##bool-gcse-sm |
compiler flag: -fgcse-sm |
text |
10200 |
-fgcse-sm, -fno-gcse-sm |
|
|
|
|
basic, boolean, optimization |
| ##bool-gcse-las |
compiler flag: -fgcse-las |
text |
10210 |
-fgcse-las, -fno-gcse-las |
|
|
|
|
basic, boolean, optimization |
| ##bool-loop-optimize |
compiler flag: -floop-optimize |
text |
10220 |
-floop-optimize, -fno-loop-optimize |
|
|
|
|
basic, boolean, optimization |
| ##bool-crossjumping |
compiler flag: -fcrossjumping |
text |
10230 |
-fcrossjumping, -fno-crossjumping |
|
|
|
|
basic, boolean, optimization |
| ##bool-if-conversion |
compiler flag: -fif-conversion |
text |
10240 |
-fif-conversion, -fno-if-conversion |
|
|
|
|
basic, boolean, optimization |
| ##bool-if-conversion2 |
compiler flag: -fif-conversion2 |
text |
10250 |
-fif-conversion2, -fno-if-conversion2 |
|
|
|
|
basic, boolean, optimization |
| ##bool-inline-functions |
compiler flag: -finline-functions |
text |
10260 |
-finline-functions, -fno-inline-functions |
|
|
|
|
basic, boolean, optimization |
| ##bool-keep-inline-functions |
compiler flag: -fkeep-inline-functions |
text |
10270 |
-fkeep-inline-functions, -fno-keep-inline-functions |
|
|
|
|
basic, boolean, optimization |
| ##bool-keep-static-consts |
compiler flag: -fkeep-static-consts |
text |
10280 |
-fkeep-static-consts, -fno-keep-static-consts |
|
|
|
|
basic, boolean, optimization |
| ##bool-merge-constants |
compiler flag: -fmerge-constants |
text |
10290 |
-fmerge-constants, -fno-merge-constants |
|
|
|
|
basic, boolean, optimization |
| ##bool-merge-all-constants |
compiler flag: -fmerge-all-constants |
text |
10300 |
-fmerge-all-constants, -fno-merge-all-constants |
|
|
|
|
basic, boolean, optimization |
| ##bool-move-all-movables |
compiler flag: -fmove-all-movables |
text |
10310 |
-fmove-all-movables, -fno-move-all-movables |
|
|
|
|
basic, boolean, optimization |
| ##bool-new-ra |
compiler flag: -fnew-ra |
text |
10320 |
-fnew-ra, -fno-new-ra |
|
|
|
|
basic, boolean, optimization |
| ##bool-branch-count-reg |
compiler flag: -fno-branch-count-reg |
text |
10330 |
-fbranch-count-reg, -fno-branch-count-reg |
|
|
|
|
basic, boolean, optimization |
| ##bool-default-inline |
compiler flag: -fno-default-inline |
text |
10340 |
-fdefault-inline, -fno-default-inline |
|
|
|
|
basic, boolean, optimization |
| ##bool-defer-pop |
compiler flag: -fno-defer-pop |
text |
10350 |
-fdefer-pop, -fno-defer-pop |
|
|
|
|
basic, boolean, optimization |
| ##bool-function-cse |
compiler flag: -fno-function-cse |
text |
10360 |
-ffunction-cse, -fno-function-cse |
|
|
|
|
basic, boolean, optimization |
| ##bool-guess-branch-probability |
compiler flag: -fno-guess-branch-probability |
text |
10370 |
-fguess-branch-probability, -fno-guess-branch-probability |
|
|
|
|
basic, boolean, optimization |
| ##bool-inline |
compiler flag: -fno-inline |
text |
10380 |
-finline, -fno-inline |
|
|
|
|
basic, boolean, optimization |
| ##bool-math-errno |
compiler flag: -fno-math-errno |
text |
10390 |
-fmath-errno, -fno-math-errno |
|
|
|
|
basic, boolean, optimization |
| ##bool-peephole |
compiler flag: -fno-peephole |
text |
10400 |
-fpeephole, -fno-peephole |
|
|
|
|
basic, boolean, optimization |
| ##bool-peephole2 |
compiler flag: -fno-peephole2 |
text |
10410 |
-fpeephole2, -fno-peephole2 |
|
|
|
|
basic, boolean, optimization |
| ##bool-unsafe-math-optimizations |
compiler flag: -funsafe-math-optimizations |
text |
10420 |
-funsafe-math-optimizations, -fno-unsafe-math-optimizations |
|
|
|
|
basic, boolean, optimization |
| ##bool-finite-math-only |
compiler flag: -ffinite-math-only |
text |
10430 |
-ffinite-math-only, -fno-finite-math-only |
|
|
|
|
basic, boolean, optimization |
| ##bool-trapping-math |
compiler flag: -fno-trapping-math |
text |
10440 |
-ftrapping-math, -fno-trapping-math |
|
|
|
|
basic, boolean, optimization |
| ##bool-zero-initialized-in-bss |
compiler flag: -fno-zero-initialized-in-bss |
text |
10450 |
-fzero-initialized-in-bss, -fno-zero-initialized-in-bss |
|
|
|
|
basic, boolean, optimization |
| ##bool-omit-frame-pointer |
compiler flag: -fomit-frame-pointer |
text |
10460 |
-fomit-frame-pointer, -fno-omit-frame-pointer |
|
|
|
|
basic, boolean, optimization |
| ##bool-optimize-register-move |
compiler flag: -foptimize-register-move |
text |
10470 |
-foptimize-register-move, -fno-optimize-register-move |
|
|
|
|
basic, boolean, optimization |
| ##bool-optimize-sibling-calls |
compiler flag: -foptimize-sibling-calls |
text |
10480 |
-foptimize-sibling-calls, -fno-optimize-sibling-calls |
|
|
|
|
basic, boolean, optimization |
| ##bool-prefetch-loop-arrays |
compiler flag: -fprefetch-loop-arrays |
text |
10490 |
-fprefetch-loop-arrays, -fno-prefetch-loop-arrays |
|
|
|
|
basic, boolean, optimization |
| ##bool-reduce-all-givs |
compiler flag: -freduce-all-givs |
text |
10500 |
-freduce-all-givs, -fno-reduce-all-givs |
|
|
|
|
basic, boolean, optimization |
| ##bool-regmove |
compiler flag: -fregmove |
text |
10510 |
-fregmove, -fno-regmove |
|
|
|
|
basic, boolean, optimization |
| ##bool-rename-registers |
compiler flag: -frename-registers |
text |
10520 |
-frename-registers, -fno-rename-registers |
|
|
|
|
basic, boolean, optimization |
| ##bool-reorder-blocks |
compiler flag: -freorder-blocks |
text |
10530 |
-freorder-blocks, -fno-reorder-blocks |
|
|
|
|
basic, boolean, optimization |
| ##bool-reorder-functions |
compiler flag: -freorder-functions |
text |
10540 |
-freorder-functions, -fno-reorder-functions |
|
|
|
|
basic, boolean, optimization |
| ##bool-rerun-cse-after-loop |
compiler flag: -frerun-cse-after-loop |
text |
10550 |
-frerun-cse-after-loop, -fno-rerun-cse-after-loop |
|
|
|
|
basic, boolean, optimization |
| ##bool-rerun-loop-opt |
compiler flag: -frerun-loop-opt |
text |
10560 |
-frerun-loop-opt, -fno-rerun-loop-opt |
|
|
|
|
basic, boolean, optimization |
| ##bool-rounding-math |
compiler flag: -frounding-math |
text |
10570 |
-frounding-math, -fno-rounding-math |
|
|
|
|
basic, boolean, optimization |
| ##bool-schedule-insns |
compiler flag: -fschedule-insns |
text |
10580 |
-fschedule-insns, -fno-schedule-insns |
|
|
|
|
basic, boolean, optimization |
| ##bool-schedule-insns2 |
compiler flag: -fschedule-insns2 |
text |
10590 |
-fschedule-insns2, -fno-schedule-insns2 |
|
|
|
|
basic, boolean, optimization |
| ##bool-sched-interblock |
compiler flag: -fno-sched-interblock |
text |
10600 |
-fsched-interblock, -fno-sched-interblock |
|
|
|
|
basic, boolean, optimization |
| ##bool-sched-spec |
compiler flag: -fno-sched-spec |
text |
10610 |
-fsched-spec, -fno-sched-spec |
|
|
|
|
basic, boolean, optimization |
| ##bool-sched-spec-load |
compiler flag: -fsched-spec-load |
text |
10620 |
-fsched-spec-load, -fno-sched-spec-load |
|
|
|
|
basic, boolean, optimization |
| ##bool-sched-spec-load-dangerous |
compiler flag: -fsched-spec-load-dangerous |
text |
10630 |
-fsched-spec-load-dangerous, -fno-sched-spec-load-dangerous |
|
|
|
|
basic, boolean, optimization |
| ##bool-sched2-use-superblocks |
compiler flag: -fsched2-use-superblocks |
text |
10640 |
-fsched2-use-superblocks, -fno-sched2-use-superblocks |
|
|
|
|
basic, boolean, optimization |
| ##bool-sched2-use-traces |
compiler flag: -fsched2-use-traces |
text |
10650 |
-fsched2-use-traces, -fno-sched2-use-traces |
|
|
|
|
basic, boolean, optimization |
| ##bool-signaling-nans |
compiler flag: -fsignaling-nans |
text |
10660 |
-fsignaling-nans, -fno-signaling-nans |
|
|
|
|
basic, boolean, optimization |
| ##bool-single-precision-constant |
compiler flag: -fsingle-precision-constant |
text |
10670 |
-fsingle-precision-constant, -fno-single-precision-constant |
|
|
|
|
basic, boolean, optimization |
| ##bool-strength-reduce |
compiler flag: -fstrength-reduce |
text |
10680 |
-fstrength-reduce, -fno-strength-reduce |
|
|
|
|
basic, boolean, optimization |
| ##bool-strict-aliasing |
compiler flag: -fstrict-aliasing |
text |
10690 |
-fstrict-aliasing, -fno-strict-aliasing |
|
|
|
|
basic, boolean, optimization |
| ##bool-tracer |
compiler flag: -ftracer |
text |
10700 |
-ftracer, -fno-tracer |
|
|
|
|
basic, boolean, optimization |
| ##bool-thread-jumps |
compiler flag: -fthread-jumps |
text |
10710 |
-fthread-jumps, -fno-thread-jumps |
|
|
|
|
basic, boolean, optimization |
| ##bool-unroll-all-loops |
compiler flag: -funroll-all-loops |
text |
10720 |
-funroll-all-loops, -fno-unroll-all-loops |
|
|
|
|
basic, boolean, optimization |
| ##bool-unroll-loops |
compiler flag: -funroll-loops |
text |
10730 |
-funroll-loops, -fno-unroll-loops |
|
|
|
|
basic, boolean, optimization |
| ##bool-peel-loops |
compiler flag: -fpeel-loops |
text |
10740 |
-fpeel-loops, -fno-peel-loops |
|
|
|
|
basic, boolean, optimization |
| ##bool-unswitch-loops |
compiler flag: -funswitch-loops |
text |
10750 |
-funswitch-loops, -fno-unswitch-loops |
|
|
|
|
basic, boolean, optimization |
| ##bool-old-unroll-loops |
compiler flag: -fold-unroll-loops |
text |
10760 |
-fold-unroll-loops, -fno-old-unroll-loops |
|
|
|
|
basic, boolean, optimization |
| ##bool-old-unroll-all-loops |
compiler flag: -fold-unroll-all-loops |
text |
10770 |
-fold-unroll-all-loops, -fno-old-unroll-all-loops |
|
|
|
|
basic, boolean, optimization |
| ##param--falign-jumps= |
compiler flag: -falign-jumps= |
integer |
30010 |
|
-falign-jumps= |
0 |
0 |
1 |
basic, parametric, optimization |
| ##param--falign-labels= |
compiler flag: -falign-labels= |
integer |
30020 |
|
-falign-labels= |
0 |
0 |
1 |
basic, parametric, optimization |
| ##param--falign-loops= |
compiler flag: -falign-loops= |
integer |
30030 |
|
-falign-loops= |
0 |
0 |
1 |
basic, parametric, optimization |
| ##param--finline-limit= |
compiler flag: -finline-limit= |
integer |
30040 |
|
-finline-limit= |
0 |
0 |
1 |
basic, parametric, optimization |
| ##param--fsched-stalled-insns= |
compiler flag: -fsched-stalled-insns= |
integer |
30050 |
|
-fsched-stalled-insns= |
0 |
0 |
1 |
basic, parametric, optimization |
| ##param-max-inline-insns-single |
compiler flag: --param max-inline-insns-single= (The maximum number of instructions in a single function eligible for inlining) |
integer |
30060 |
|
--param max-inline-insns-single= |
0 |
1000 |
1 |
basic, parametric, optimization |
| ##param-max-inline-insns-auto |
compiler flag: --param max-inline-insns-auto= (The maximum number of instructions when automatically inlining) |
integer |
30070 |
|
--param max-inline-insns-auto= |
0 |
200 |
1 |
basic, parametric, optimization |
| ##param-max-inline-insns-rtl |
compiler flag: --param max-inline-insns-rtl= (The maximum number of instructions for the RTL inliner) |
integer |
30080 |
|
--param max-inline-insns-rtl= |
0 |
1200 |
1 |
basic, parametric, optimization |
| ##param-max-delay-slot-insn-search |
compiler flag: --param max-delay-slot-insn-search= (The maximum number of instructions to consider to fill a delay slot) |
integer |
30090 |
|
--param max-delay-slot-insn-search= |
0 |
200 |
1 |
basic, parametric, optimization |
| ##param-max-delay-slot-live-search |
compiler flag: --param max-delay-slot-live-search= (The maximum number of instructions to consider to find accurate live register information) |
integer |
30100 |
|
--param max-delay-slot-live-search= |
0 |
666 |
1 |
basic, parametric, optimization |
| ##param-max-pending-list-length |
compiler flag: --param max-pending-list-length= (The maximum length of scheduling's pending operations list) |
integer |
30110 |
|
--param max-pending-list-length= |
0 |
64 |
1 |
basic, parametric, optimization |
| ##param-large-function-insns |
compiler flag: --param large-function-insns= (The size of function body to be considered large) |
integer |
30120 |
|
--param large-function-insns= |
0 |
6000 |
1 |
basic, parametric, optimization |
| ##param-large-function-growth |
compiler flag: --param large-function-growth= (Maximal growth due to inlining of large function (in percent)) |
integer |
30130 |
|
--param large-function-growth= |
0 |
200 |
1 |
basic, parametric, optimization |
| ##param-inline-unit-growth |
compiler flag: --param inline-unit-growth= (how much can given compilation unit grow because of the inlining (in percent)) |
integer |
30140 |
|
--param inline-unit-growth= |
0 |
100 |
1 |
basic, parametric, optimization |
| ##param-max-gcse-passes |
compiler flag: --param max-gcse-passes= (The maximum number of passes to make when doing GCSE) |
integer |
30160 |
|
--param max-gcse-passes= |
0 |
2 |
1 |
basic, parametric, optimization |
| ##param-max-unrolled-insns |
compiler flag: --param max-unrolled-insns= (The maximum number of instructions to consider to unroll in a loop) |
integer |
30170 |
|
--param max-unrolled-insns= |
0 |
400 |
1 |
basic, parametric, optimization |
| ##param-max-average-unrolled-insns |
compiler flag: --param max-average-unrolled-insns= (The maximum number of instructions to consider to unroll in a loop on average) |
integer |
30180 |
|
--param max-average-unrolled-insns= |
0 |
160 |
1 |
basic, parametric, optimization |
| ##param-max-unroll-times |
compiler flag: --param max-unroll-times= (The maximum number of unrollings of a single loop) |
integer |
30190 |
|
--param max-unroll-times= |
0 |
16 |
1 |
basic, parametric, optimization |
| ##param-max-peeled-insns |
compiler flag: --param max-peeled-insns= (The maximum number of insns of a peeled loop) |
integer |
30200 |
|
--param max-peeled-insns= |
0 |
800 |
1 |
basic, parametric, optimization |
| ##param-max-peel-times |
compiler flag: --param max-peel-times= (The maximum number of peelings of a single loop) |
integer |
30210 |
|
--param max-peel-times= |
0 |
32 |
1 |
basic, parametric, optimization |
| ##param-max-completely-peeled-insns |
compiler flag: --param max-completely-peeled-insns= (The maximum number of insns of a completely peeled loop) |
integer |
30220 |
|
--param max-completely-peeled-insns= |
0 |
800 |
1 |
basic, parametric, optimization |
| ##param-max-completely-peel-times |
compiler flag: --param max-completely-peel-times= (The maximum number of peelings of a single loop that is peeled completely) |
integer |
30230 |
|
--param max-completely-peel-times= |
0 |
32 |
1 |
basic, parametric, optimization |
| ##param-max-once-peeled-insns |
compiler flag: --param max-once-peeled-insns= (The maximum number of insns of a peeled loop that rolls only once) |
integer |
30240 |
|
--param max-once-peeled-insns= |
0 |
800 |
1 |
basic, parametric, optimization |
| ##param-max-unswitch-insns |
compiler flag: --param max-unswitch-insns= (The maximum number of insns of an unswitched loop) |
integer |
30250 |
|
--param max-unswitch-insns= |
0 |
100 |
1 |
basic, parametric, optimization |
| ##param-max-unswitch-level |
compiler flag: --param max-unswitch-level= (The maximum number of unswitchings in a single loop) |
integer |
30260 |
|
--param max-unswitch-level= |
0 |
6 |
1 |
basic, parametric, optimization |
| ##param-hot-bb-count-fraction |
compiler flag: --param hot-bb-count-fraction= (Select fraction of the maximal count of repetitions of basic block inrogram given basic block needs to have to be considered hot) |
integer |
30270 |
|
--param hot-bb-count-fraction= |
0 |
20000 |
1 |
basic, parametric, optimization |
| ##param-hot-bb-frequency-fraction |
compiler flag: --param hot-bb-frequency-fraction= (Select fraction of the maximal frequency of executions of basiclock in function given basic block needs to have to be considered hot) |
integer |
30280 |
|
--param hot-bb-frequency-fraction= |
0 |
2000 |
1 |
basic, parametric, optimization |
| ##param-tracer-max-code-growth |
compiler flag: --param tracer-max-code-growth= (Maximal code growth caused by tail duplication (in percent)) |
integer |
30310 |
|
--param tracer-max-code-growth= |
0 |
200 |
1 |
basic, parametric, optimization |
| ##param-tracer-min-branch-ratio |
compiler flag: --param tracer-min-branch-ratio= (Stop reverse growth if the reverse probability of best edge is lesshan this threshold (in percent)) |
integer |
30320 |
|
--param tracer-min-branch-ratio= |
0 |
20 |
1 |
basic, parametric, optimization |
| ##param-tracer-min-branch-probability-feedback |
compiler flag: --param tracer-min-branch-probability-feedback= (Stop forward growth if the probability of best edge is less thanhis threshold (in percent). Used when profile feedback is available) |
integer |
30330 |
|
--param tracer-min-branch-probability-feedback= |
0 |
160 |
1 |
basic, parametric, optimization |
| ##param-tracer-min-branch-probability |
compiler flag: --param tracer-min-branch-probability= (Stop forward growth if the probability of best edge is less thanhis threshold (in percent). Used when profile feedback is not available) |
integer |
30340 |
|
--param tracer-min-branch-probability= |
0 |
100 |
1 |
basic, parametric, optimization |
| ##param-max-crossjump-edges |
compiler flag: --param max-crossjump-edges= (The maximum number of incoming edges to consider for crossjumping) |
integer |
30350 |
|
--param max-crossjump-edges= |
0 |
200 |
1 |
basic, parametric, optimization |
| ##param-max-cse-path-length |
compiler flag: --param max-cse-path-length= (The maximum length of path considered in cse) |
integer |
30360 |
|
--param max-cse-path-length= |
1 |
20 |
1 |
basic, parametric, optimization |
| ##param-max-cselib-memory-locations |
compiler flag: --param max-cselib-memory-locations= (The maximum memory locations recorded by cselib) |
integer |
30370 |
|
--param max-cselib-memory-locations= |
0 |
1000 |
1 |
basic, parametric, optimization |
| ##param-max-reload-search-insns |
compiler flag: --param max-reload-search-insns= (The maximum number of instructions to search backward when looking for equivalent reload) |
integer |
30400 |
|
--param max-reload-search-insns= |
0 |
200 |
1 |
basic, parametric, optimization |
