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Re: [RFC] Making fold-const sane WRT symbol visibilities

Jan Hubicka <> writes:

> 	* cgraph.h (symtab_node): Add nonzero_address.
> 	(decl_in_symtab_p): Break out from ...
> 	(symtab_get_node): ... here.
> 	* fold-const.c: Include cgraph.h
> 	(tree_single_nonzero_warnv_p): Use symtab to determine
> 	if symbol is non-zero.
> 	* symtab.c (symtab_node::nonzero_address): New method.
> 	* gcc.dg/pr36901.h: Simplify because non-zero symbol folding no
> 	longer happens during parsing.
> 	* gcc.dg/pr44024.c: Update template.
> 	* g++.dg/tree-ssa/nonzero-2.C: New testcase.
> 	* g++.dg/tree-ssa/nonzero-1.C: New testcase.
> 	* gcc.dg/tree-ssa/nonzero-1.c: New testcase.

FAIL: g++.dg/cpp0x/static_assert9.C  -std=c++11 (test for excess errors)
Excess errors:
/daten/aranym/gcc/gcc-20140714/gcc/testsuite/g++.dg/cpp0x/static_assert9.C:5:1: error: non-constant condition for static assertion
/daten/aranym/gcc/gcc-20140714/gcc/testsuite/g++.dg/cpp0x/static_assert9.C:5:1: error: '(f != 0u)' is not a constant expression


Andreas Schwab, SUSE Labs,
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