r272229 - in /branches/gcc-9-branch/gcc: cp/Cha...

[mpolacek@gcc.gnu.org]

Author: mpolacek
Date: Thu Jun 13 00:56:54 2019
New Revision: 272229

URL: https://gcc.gnu.org/viewcvs?rev=272229&root=gcc&view=rev
Log:
	PR c++/90825 - endless recursion when evaluating sizeof.
	PR c++/90832 - endless recursion when evaluating sizeof.
	* constexpr.c (cxx_eval_constant_expression): Don't recurse on the
	result of fold_sizeof_expr if is returns a SIZEOF_EXPR.
	* typeck.c (cxx_sizeof_expr): Only return a SIZEOF_EXPR if the operand
	is instantiation-dependent.

	* g++.dg/cpp0x/constexpr-sizeof2.C: New test.
	* g++.dg/cpp0x/constexpr-sizeof3.C: New test.

Added:
    branches/gcc-9-branch/gcc/testsuite/g++.dg/cpp0x/constexpr-sizeof2.C
    branches/gcc-9-branch/gcc/testsuite/g++.dg/cpp0x/constexpr-sizeof3.C
Modified:
    branches/gcc-9-branch/gcc/cp/ChangeLog
    branches/gcc-9-branch/gcc/cp/constexpr.c
    branches/gcc-9-branch/gcc/cp/typeck.c