c++: __builtin_shufflevector with value-dep expr [PR105353]

Here we issue an error from c_build_shufflevector while parsing a template
because it got a TEMPLATE_PARM_INDEX, but this function expects INTEGER_CSTs
(except the first two arguments).  It checks if any of the arguments are
type-dependent, if so, we leave the processing for later, but it should
also check value-dependency for the 3rd+ arguments, so as to avoid the
problem above.

This is not a regression -- __builtin_shufflevector was introduced in
GCC 12, but it looks safe enough.

	PR c++/105353

gcc/cp/ChangeLog:

	* typeck.cc (build_x_shufflevector): Use
	instantiation_dependent_expression_p except for the first two
	arguments.

gcc/testsuite/ChangeLog:

	* g++.dg/ext/builtin-shufflevector-3.C: New test.

0 files changed, 0 insertions, 0 deletions