re PR middle-end/23971 (synth_mult running amok)

	PR middle-end/23971
	* expmed.c (alg_code): Add alg_impossible.
	(alg_hash_entry): Add cost.
	(synth_mult): Record alg_impossible in the hash table if
	multiplication by a given integer is impossble within the
	limit.  Speed up using alg_impossible.

From-SVN: r104494

diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index fcf3edf..415fd5c 100644 (file)
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,6 @@
 2005-09-21  Kazu Hirata  <kazu@codesourcery.com>
 
+       PR middle-end/23971
        * expmed.c (alg_code): Add alg_impossible.
        (alg_hash_entry): Add cost.
        (synth_mult): Record alg_impossible in the hash table if