This is the mail archive of the
gcc-bugs@gcc.gnu.org
mailing list for the GCC project.
[Bug rtl-optimization/23567] [3.4/4.0/4.1 regression] if-conversion causes wrong code
- From: "jakub at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 7 Nov 2005 08:28:09 -0000
- Subject: [Bug rtl-optimization/23567] [3.4/4.0/4.1 regression] if-conversion causes wrong code
- References: <bug-23567-7958@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #10 from jakub at gcc dot gnu dot org 2005-11-07 08:28 -------
Subject: Bug 23567
Author: jakub
Date: Mon Nov 7 08:28:01 2005
New Revision: 106586
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=106586
Log:
PR rtl-optimization/23567
* ifcvt.c (noce_mem_write_may_trap_or_fault_p): New function.
(noce_process_if_block): Don't do any optimizations except
if (cond) x = x; if !set_b and write into orig_x may trap
or fault.
* gcc.c-torture/execute/20051104-1.c: New test.
Added:
branches/gcc-4_0-branch/gcc/testsuite/gcc.c-torture/execute/20051104-1.c
Modified:
branches/gcc-4_0-branch/gcc/ChangeLog
branches/gcc-4_0-branch/gcc/ifcvt.c
branches/gcc-4_0-branch/gcc/testsuite/ChangeLog
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23567