http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51879
vries at gcc dot gnu.org changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #26430|0 |1
is obsolete| |
--- Comment #7 from vries at gcc dot gnu.org 2012-01-25 09:46:52 UTC ---
Created attachment 26454
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26454
Updated tentative patch
This patch was bootstrapped and reg-tested on x86_64, and fails only in 3 tests
- gcc.c-torture/compile/20030224-1.c
- gcc.c-torture/execute/20020412-1.c
- gcc.dg/lto/20090706-1_0.c
on ICE from PR51990.
2012-01-25 Tom de Vries <t...@codesourcery.com>
PR tree-optimization/51879
* tree-ssa-sccvn.h (struct vn_reference_s): Add vdef field.
* tree-ssa-sccvn.c (visit_reference_op_call): Handle gimple_vdef.
Handle case that lhs is NULL_TREE.
(visit_use): Handle non-pure/const calls and calls without result using
visit_reference_op_call.
gcc.dg/pr51879.c: New test.
gcc.dg/pr51879-2.c: Same.
gcc.dg/pr51879-3.c: Same.
gcc.dg/pr51879-4.c: Same.
gcc.dg/pr51879-6.c: Same.
