From: Ulya Trofimovich <skvadrik@gmail.com>
Date: Tue, 17 May 2016 17:55:03 +0000 (+0100)
Subject: Moved loop-invariant code out of loop.
X-Git-Tag: 1.0~39^2~294
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=7726029aa93d4e31c53adadd20f834212f4638c1;p=re2c

Moved loop-invariant code out of loop.
---

diff --git a/re2c/src/ir/dfa/tag_deduplication.cc b/re2c/src/ir/dfa/tag_deduplication.cc
index bca0d22e..c82ac598 100644
--- a/re2c/src/ir/dfa/tag_deduplication.cc
+++ b/re2c/src/ir/dfa/tag_deduplication.cc
@@ -56,15 +56,15 @@ static void calc_live(const dfa_t &dfa, size_t fallback, size_t *live)
 	for (bool loop = true; loop;) {
 		loop = false;
 		for (size_t i = 0; i < nstates; ++i) {
+			const size_t l = live[i];
 			dfa_state_t *s = dfa.states[i];
 			for (size_t c = 0; c < dfa.nchars; ++c) {
 				const size_t j = s->arcs[c];
 				if (j != dfa_t::NIL) {
-					const size_t old = live[i];
 					dfa.tagpool.orl_with_mask(&live[i], live[j], s->tags[c]);
-					loop |= old != live[i];
 				}
 			}
+			loop |= live[i] != l;
 		}
 	}
 }