fold-const: Fix division folding with vector operands [PR94412]

fold-const: Fix division folding with vector operands [PR94412]

The following testcase is miscompiled since 4.9, we treat unsigned
vector types as if they were signed and "optimize" negations across it.

2020-03-31  Marc Glisse  <marc.glisse@inria.fr>
	    Jakub Jelinek  <jakub@redhat.com>

	PR middle-end/94412
	* fold-const.c (fold_binary_loc) <case TRUNC_DIV_EXPR>: Use
	ANY_INTEGRAL_TYPE_P instead of INTEGRAL_TYPE_P.

	* gcc.c-torture/execute/pr94412.c: New test.

Co-authored-by: Marc Glisse <marc.glisse@inria.fr>