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[Bug c++/48809] [4.4/4.5/4.6/4.7 Regression] switch statement optimization error
- From: "jakub at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Sat, 30 Apr 2011 06:55:35 +0000
- Subject: [Bug c++/48809] [4.4/4.5/4.6/4.7 Regression] switch statement optimization error
- Auto-submitted: auto-generated
- References: <bug-48809-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48809
--- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-04-30 06:54:06 UTC ---
Author: jakub
Date: Sat Apr 30 06:54:02 2011
New Revision: 173207
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=173207
Log:
PR tree-optimization/48809
* tree-switch-conversion.c (build_arrays): Compute tidx in unsigned
type.
(gen_inbound_check): Don't compute index_expr - range_min in utype
again, instead reuse SSA_NAME initialized in build_arrays.
Remove two useless gsi_for_stmt calls.
* gcc.c-torture/execute/pr48809.c: New test.
Added:
trunk/gcc/testsuite/gcc.c-torture/execute/pr48809.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-switch-conversion.c