com php-src: Add comment to explaining the new check: ext/opcache/Optimizer/optimize_temp_vars_5.c

Commit: 249915f938f6880b68ab6c6a47952c509dc51604 Author: Xinchen Hui <laruence@php.net> Wed, 8 Jul 2015 17:44:54 +0800 Parents: 3b5876916dca1ce1db7533a0848b7f912101e07b Branches: master Link: http://git.php.net/?p=php-src.git;a=commitdiff;h=249915f938f6880b68ab6c6a47952c509dc51604 Log: Add comment to explaining the new check Changed paths: M ext/opcache/Optimizer/optimize_temp_vars_5.c Diff: diff --git a/ext/opcache/Optimizer/optimize_temp_vars_5.c b/ext/opcache/Optimizer/optimize_temp_vars_5.c index de170d2..f60f61c 100644 --- a/ext/opcache/Optimizer/optimize_temp_vars_5.c +++ b/ext/opcache/Optimizer/optimize_temp_vars_5.c @@ -152,6 +152,9 @@ void optimize_temporary_variables(zend_op_array *op_array, zend_optimizer_ctx *c currT = VAR_NUM(ZEND_RESULT(opline).var) - offset; if (valid_T[currT]) { if (start_of_T[currT] == opline) { + /* ZEND_FAST_CALL can not share temporary var with others + * since the fast_var could also be set by ZEND_HANDLE_EXCEPTION + * which could be ahead of it */ if (opline->opcode != ZEND_FAST_CALL) { taken_T[map_T[currT]] = 0; }