Module: sip-router
Branch: andrei/type_conversion
Commit: 04ff69818798e2330587c4109a69d8974908b158
URL:
http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=04ff698…
Author: Andrei Pelinescu-Onciul <andrei(a)iptel.org>
Committer: Andrei Pelinescu-Onciul <andrei(a)iptel.org>
Date: Tue Apr 28 17:49:54 2009 +0200
core expr eval: minor ==/!= optimization
- replace the generic RVE_EQ_OP/RVE_DIFF_OP with the type specific
version (RVE_IEQ_OP/RVE_STREQ_OP...), if the type is known.
---
rvalue.c | 23 +++++++++++++++++++++--
1 files changed, 21 insertions(+), 2 deletions(-)
diff --git a/rvalue.c b/rvalue.c
index 36c6ef4..7e82503 100644
--- a/rvalue.c
+++ b/rvalue.c
@@ -2341,10 +2341,10 @@ static int rve_op_is_commutative(enum rval_expr_op op, enum
rval_type type)
case RVE_GTE_OP:
case RVE_LT_OP:
case RVE_LTE_OP:
- case RVE_EQ_OP:
+ case RVE_CONCAT_OP:
return 0;
case RVE_DIFF_OP:
- case RVE_CONCAT_OP:
+ case RVE_EQ_OP:
#if !defined(UNDEF_EQ_ALWAYS_FALSE) && !defined(UNDEF_EQ_UNDEF_TRUE)
return 1;
#else
@@ -2838,6 +2838,25 @@ static int rve_optimize(struct rval_expr* rve)
rve->fpos.e_line, rve->fpos.e_col);
}
}
+ /* e1 EQ_OP e2 -> change op if we know e1 basic type
+ e1 DIFF_OP e2 -> change op if we know e2 basic type */
+ if (rve->op==RVE_EQ_OP || rve->op==RVE_DIFF_OP){
+ l_type=rve_guess_type(rve->left.rve);
+ if (l_type==RV_INT){
+ rve->op=(rve->op==RVE_EQ_OP)?RVE_IEQ_OP:RVE_IDIFF_OP;
+ DBG("FIXUP RVE (%d,%d-%d,%d): changed ==/!= into interger"
+ " ==/!=\n",
+ rve->fpos.s_line, rve->fpos.s_col,
+ rve->fpos.e_line, rve->fpos.e_col);
+ }else if (l_type==RV_STR){
+ rve->op=RVE_CONCAT_OP;
+ rve->op=(rve->op==RVE_EQ_OP)?RVE_STREQ_OP:RVE_STRDIFF_OP;
+ DBG("FIXUP RVE (%d,%d-%d,%d): changed ==/!= into string"
+ " ==/!=\n",
+ rve->fpos.s_line, rve->fpos.s_col,
+ rve->fpos.e_line, rve->fpos.e_col);
+ }
+ }
/* $v * 0 => 0; $v * 1 => $v (for *, /, &, |, &&, ||, +, -) */
if (rve_opt_01(rve, type)==1){