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[Bug tree-optimization/51799] [4.7 Regression] Compiler ICE in vect_is_simple_use_1
- From: "irar at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Thu, 12 Jan 2012 14:41:51 +0000
- Subject: [Bug tree-optimization/51799] [4.7 Regression] Compiler ICE in vect_is_simple_use_1
- Auto-submitted: auto-generated
- References: <bug-51799-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51799
--- Comment #5 from irar at gcc dot gnu.org 2012-01-12 14:41:51 UTC ---
Author: irar
Date: Thu Jan 12 14:41:44 2012
New Revision: 183126
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=183126
Log:
PR tree-optimization/51799
* tree-vect-patterns.c (vect_recog_over_widening_pattern): Check
that the last operation is a type demotion.
Added:
trunk/gcc/testsuite/gcc.dg/vect/pr51799.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.dg/vect/vect-widen-shift-u8.c
trunk/gcc/tree-vect-patterns.c