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r197580 - in /trunk/gcc: ChangeLog testsuite/Ch...
- From: jakub at gcc dot gnu dot org
- To: gcc-cvs at gcc dot gnu dot org
- Date: Mon, 08 Apr 2013 13:46:01 -0000
- Subject: r197580 - in /trunk/gcc: ChangeLog testsuite/Ch...
Author: jakub
Date: Mon Apr 8 13:46:00 2013
New Revision: 197580
URL: http://gcc.gnu.org/viewcvs?rev=197580&root=gcc&view=rev
Log:
PR c++/34949
PR c++/50243
* tree-eh.c (optimize_clobbers): Only remove clobbers if bb doesn't
contain anything but clobbers, at most one __builtin_stack_restore,
optionally debug stmts and final resx, and if it has at least one
incoming EH edge. Don't check for SSA_NAME on LHS of a clobber.
(sink_clobbers): Don't check for SSA_NAME on LHS of a clobber.
Instead of moving clobbers with MEM_REF LHS with SSA_NAME address
which isn't defaut definition, remove them.
(unsplit_eh, cleanup_empty_eh): Use single_{pred,succ}_{p,edge}
instead of EDGE_COUNT comparisons or EDGE_{PRED,SUCC}.
* tree-ssa-ccp.c (execute_fold_all_builtins): Remove clobbers
with MEM_REF LHS with SSA_NAME address.
* g++.dg/opt/vt3.C: New test.
* g++.dg/opt/vt4.C: New test.
Added:
trunk/gcc/testsuite/g++.dg/opt/vt3.C
trunk/gcc/testsuite/g++.dg/opt/vt4.C
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-eh.c
trunk/gcc/tree-ssa-ccp.c