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[Bug tree-optimization/14495] [tree-ssa] Propagate range info into a switch statement
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 2 Apr 2008 12:52:21 -0000
- Subject: [Bug tree-optimization/14495] [tree-ssa] Propagate range info into a switch statement
- References: <bug-14495-5009@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #8 from rguenth at gcc dot gnu dot org 2008-04-02 12:52 -------
Subject: Bug 14495
Author: rguenth
Date: Wed Apr 2 12:51:37 2008
New Revision: 133834
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=133834
Log:
2008-04-02 Richard Guenther <rguenther@suse.de>
PR tree-optimization/14495
* tree-vrp.c (vrp_visit_cond_stmt): Do not handle
SWITCH_EXPR here ...
(vrp_visit_switch_stmt): ... but here (new function).
(find_case_label_index): New helper function.
(vrp_visit_stmt): Dispatch to vrp_visit_switch_stmt.
* gcc.dg/tree-ssa/vrp40.c: New testcase.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/vrp40.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-vrp.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=14495