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[Bug tree-optimization/50717] [4.7 Regression] Silent code gen fault with incorrect widening of multiply
- From: "ams at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 18 Oct 2011 19:57:19 +0000
- Subject: [Bug tree-optimization/50717] [4.7 Regression] Silent code gen fault with incorrect widening of multiply
- Auto-submitted: auto-generated
- References: <bug-50717-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50717
--- Comment #7 from Andrew Stubbs <ams at gcc dot gnu.org> 2011-10-18 19:57:19 UTC ---
Author: ams
Date: Tue Oct 18 19:57:15 2011
New Revision: 180164
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=180164
Log:
2011-10-18 Andrew Stubbs <ams@codesourcery.com>
PR tree-optimization/50717
gcc/
* tree-ssa-math-opts.c (is_widening_mult_p): Remove the 'type'
parameter. Calculate 'type' from stmt.
(convert_mult_to_widen): Update call the is_widening_mult_p.
(convert_plusminus_to_widen): Likewise.
gcc/testsuite/
* gcc.dg/pr50717-1.c: New file.
* gcc.target/arm/wmul-12.c: Correct types.
* gcc.target/arm/wmul-8.c: Correct types.
Added:
trunk/gcc/testsuite/gcc.dg/pr50717-1.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/testsuite/gcc.target/arm/wmul-12.c
trunk/gcc/testsuite/gcc.target/arm/wmul-8.c
trunk/gcc/tree-ssa-math-opts.c