diff options
Diffstat (limited to 'driver')
| -rw-r--r-- | driver/Clflags.ml | 2 | ||||
| -rw-r--r-- | driver/Driver.ml | 10 |
2 files changed, 10 insertions, 2 deletions
diff --git a/driver/Clflags.ml b/driver/Clflags.ml index fc12863d..d27871ef 100644 --- a/driver/Clflags.ml +++ b/driver/Clflags.ml @@ -27,6 +27,8 @@ let option_ftailcalls = ref true let option_fconstprop = ref true let option_fcse = ref true let option_fredundancy = ref true +let option_fifconversion = ref true +let option_ffavor_branchless = ref false let option_falignfunctions = ref (None: int option) let option_falignbranchtargets = ref 0 let option_faligncondbranchs = ref 0 diff --git a/driver/Driver.ml b/driver/Driver.ml index 50f14d13..84392ef6 100644 --- a/driver/Driver.ml +++ b/driver/Driver.ml @@ -196,6 +196,9 @@ Processing options: -finline Perform inlining of functions [on] -finline-functions-called-once Integrate functions only required by their single caller [on] + -fif-conversion Perform if-conversion (generation of conditional moves) [on] + -ffavor-branchless Favor the generation of branch-free instruction sequences, + even when possibly more costly than the default [off] Code generation options: (use -fno-<opt> to turn off -f<opt>) -ffpu Use FP registers for some integer operations [on] -fsmall-data <n> Set maximal size <n> for allocation in small data area @@ -250,7 +253,8 @@ let dump_mnemonics destfile = exit 0 let optimization_options = [ - option_ftailcalls; option_fconstprop; option_fcse; option_fredundancy; option_finline_functions_called_once; + option_ftailcalls; option_fifconversion; option_fconstprop; option_fcse; + option_fredundancy; option_finline_functions_called_once; ] let set_all opts () = List.iter (fun r -> r := true) opts @@ -301,7 +305,8 @@ let cmdline_actions = Exact "-Os", Set option_Osize; Exact "-fsmall-data", Integer(fun n -> option_small_data := n); Exact "-fsmall-const", Integer(fun n -> option_small_const := n); - Exact "-ffloat-const-prop", Integer(fun n -> option_ffloatconstprop := n); + Exact "-ffloat-const-prop", Integer(fun n -> option_ffloatconstprop := n); + Exact "-ffavor-branchless", Set option_ffavor_branchless; Exact "-falign-functions", Integer(fun n -> check_align n; option_falignfunctions := Some n); Exact "-falign-branch-targets", Integer(fun n -> check_align n; option_falignbranchtargets := n); Exact "-falign-cond-branches", Integer(fun n -> check_align n; option_faligncondbranchs := n);] @ @@ -364,6 +369,7 @@ let cmdline_actions = (* Optimization options *) (* -f options: come in -f and -fno- variants *) @ f_opt "tailcalls" option_ftailcalls + @ f_opt "if-conversion" option_fifconversion @ f_opt "const-prop" option_fconstprop @ f_opt "cse" option_fcse @ f_opt "redundancy" option_fredundancy |