[Bug tree-optimization/67955] tree-dse does not use pointer info
law at gcc dot gnu.org
gcc-bugzilla@gcc.gnu.org
Wed Jan 4 19:23:00 GMT 2017
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67955
--- Comment #11 from Jeffrey A. Law <law at gcc dot gnu.org> ---
Author: law
Date: Wed Jan 4 19:22:44 2017
New Revision: 244067
URL: https://gcc.gnu.org/viewcvs?rev=244067&root=gcc&view=rev
Log:
PR tree-optimizatin/67955
* tree-ssa-alias.c (same_addr_size_stores_p): Check offsets first.
Allow any SSA_VAR_P as the base objects. Use integer_zerop. Verify
the points-to solution does not include pt_null. Use DECL_PT_UID
unconditionally.
PR tree-optimization/67955
* gcc.dg/tree-ssa/ssa-dse-28.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/tree-ssa/ssa-dse-28.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/testsuite/ChangeLog
trunk/gcc/tree-ssa-alias.c
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