kiper220/mimalloc
1
0
Fork 0
mirror of https://github.com/microsoft/mimalloc.git synced 2025-05-05 15:09:31 +03:00
Code Issues Projects Releases Packages Wiki Activity Actions

Add branch prediction hint for mi_option_get

Browse source 
mi_option_get is called frequently in stress tests, and the patch adds
extra hint to the compiler to emit instructions that will cause branch
prediction to favour the "likely" side of a jump instruction.
This commit is contained in:
Jim Huang 2019-07-21 21:42:00 +08:00 • committed by daan
parent 7266e7006a
commit 3e9c953eea
1 changed files with 1 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
src/options.c
View file

@ -79,7 +79,7 @@ static void mi_option_init(mi_option_desc_t* desc);
long mi_option_get(mi_option_t option) { long mi_option_get(mi_option_t option) {
mi_assert(option >= 0 && option < _mi_option_last); mi_assert(option >= 0 && option < _mi_option_last);
mi_option_desc_t* desc = &options[option]; mi_option_desc_t* desc = &options[option];
if (desc->init == UNINIT) { if (mi_unlikely(desc->init == UNINIT)) {
mi_option_init(desc); mi_option_init(desc);
if (option != mi_option_verbose) { if (option != mi_option_verbose) {
_mi_verbose_message("option '%s': %ld\n", desc->name, desc->value); _mi_verbose_message("option '%s': %ld\n", desc->name, desc->value);