diff options
Diffstat (limited to 'gcc')
| -rw-r--r-- | gcc/ChangeLog | 5 | ||||
| -rw-r--r-- | gcc/params.opt | 2 | ||||
| -rw-r--r-- | gcc/predict.c | 3 |
3 files changed, 8 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 907d0f7..febcd6f 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,5 +1,10 @@ 2020-01-16 Jan Hubicka <hubicka@ucw.cz> + * params.opt (-param=max-predicted-iterations): Increase range from 0. + * predict.c (estimate_loops): Add 1 to param_max_predicted_iterations. + +2020-01-16 Jan Hubicka <hubicka@ucw.cz> + * ipa-fnsummary.c (estimate_calls_size_and_time): Fix formating of dump. * params.opt: (max-predicted-iterations): Set bounds. diff --git a/gcc/params.opt b/gcc/params.opt index f02c769..8e4217d 100644 --- a/gcc/params.opt +++ b/gcc/params.opt @@ -555,7 +555,7 @@ Common Joined UInteger Var(param_max_pow_sqrt_depth) Init(5) IntegerRange(1, 32) Maximum depth of sqrt chains to use when synthesizing exponentiation by a real constant. -param=max-predicted-iterations= -Common Joined UInteger Var(param_max_predicted_iterations) Init(100) IntegerRange(1, 65536) Param Optimization +Common Joined UInteger Var(param_max_predicted_iterations) Init(100) IntegerRange(0, 65536) Param Optimization The maximum number of loop iterations we predict statically. -param=max-reload-search-insns= diff --git a/gcc/predict.c b/gcc/predict.c index c3aed9e..1b00058 100644 --- a/gcc/predict.c +++ b/gcc/predict.c @@ -3427,7 +3427,8 @@ estimate_loops (void) { auto_bitmap tovisit; basic_block bb; - sreal max_cyclic_prob = (sreal)1 - (sreal)1 / param_max_predicted_iterations; + sreal max_cyclic_prob = (sreal)1 + - (sreal)1 / (param_max_predicted_iterations + 1); /* Start by estimating the frequencies in the loops. */ if (number_of_loops (cfun) > 1) |