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commit	64e0f5ff1f3be1ddccc2a50cb371b5dce94124b1
author	Jan Hubicka <jh@suse.cz>
	Mon, 20 Sep 2010 15:48:42 +0000 (20 17:48 +0200)
committer	Jan Hubicka <hubicka@gcc.gnu.org>
	Mon, 20 Sep 2010 15:48:42 +0000 (20 15:48 +0000)
tree	5dc2da773507a107b478346e98a80752893d9599	tree \| snapshot (tar.gz zip)
parent	4ce9b2b20f34a82792df7e5dbb8c230e1cc29e45	commit \| diff

re PR tree-optimization/45605 (Missed devirtualization)

PR tree-optimize/45605
* cgraph.h (const_value_known_p): Declare.
(varpool_decide_const_value_known): Remove.
* tree-ssa-ccp.c (get_base_constructor): Use it.
* lto-cgraph.c (compute_ltrans_boundary): Likewise.
* expr.c (string_constant): Likewise.
* tree-ssa-loop-ivcanon.c (constant_after_peeling): Likewise.
* ipa.c (ipa_discover_readonly_nonaddressable_var,
function_and_variable_visibility): Likewise.
* gimplify.c (gimplify_call_expr): Likewise.
* gimple-fold.c (get_symbol_constant_value): Likewise.
* varpool.c (varpool_decide_const_value_known): Replace by...
(const_value_known_p): ... this one; handle other kinds of DECLs
too and work for automatic vars.
(varpool_finalize_decl): Use const_value_known_p.

* lto.c (lto_promote_cross_file_statics): Use const_value_known_p.

* g++.dg/tree-ssa/pr45605.C: New testcase.

From-SVN: r164438

gcc/ChangeLog		diff \| blob \| blame \| history
gcc/cgraph.h		diff \| blob \| blame \| history
gcc/expr.c		diff \| blob \| blame \| history
gcc/gimple-fold.c		diff \| blob \| blame \| history
gcc/gimplify.c		diff \| blob \| blame \| history
gcc/ipa.c		diff \| blob \| blame \| history
gcc/lto-cgraph.c		diff \| blob \| blame \| history
gcc/lto/ChangeLog		diff \| blob \| blame \| history
gcc/lto/lto.c		diff \| blob \| blame \| history
gcc/testsuite/ChangeLog		diff \| blob \| blame \| history
gcc/testsuite/g++.dg/tree-ssa/pr45605.C	[new file with mode: 0644]	blob
gcc/tree-ssa-ccp.c		diff \| blob \| blame \| history
gcc/tree-ssa-loop-ivcanon.c		diff \| blob \| blame \| history
gcc/varpool.c		diff \| blob \| blame \| history