Additional _BitInt test coverage [PR102989]

On Tue, Sep 05, 2023 at 10:40:26PM +0000, Joseph Myers wrote:
> Additional tests I think should be added (for things I expect should
> already work):
>
> * Tests for BITINT_MAXWIDTH in <limits.h>.  Test that it's defined for
> C2x, but not defined for C11/C17 (the latter independent of whether the
> target has _BitInt support).  Test the value as well: _BitInt
> (BITINT_MAXWIDTH) should be OK (both signed and unsigned) but _BitInt
> (BITINT_MAXWIDTH + 1) should not be OK.  Also test that BITINT_MAXWIDTH >=
> ULLONG_MAX.
>
> * Test _BitInt (N) where N is a constexpr variable or enum constant (I
> expect these should work - the required call to convert_lvalue_to_rvalue
> for constexpr to work is present - but I don't see such tests in the
> testsuite).
>
> * Test that -funsigned-bitfields does not affect the signedness of _BitInt
> (N) bit-fields (the standard wording isn't entirely clear, but that's
> what's implemented in the patches).
>
> * Test the errors for _Sat used with _BitInt (though such a test might not
> actually run at present because no target supports both features).

The following patch does that plus for most of the new changes in the
C _BitInt support patch requested in patch review it also does testsuite
coverage.

2023-09-06  Jakub Jelinek  <jakub@redhat.com>

	PR c/102989
	* gcc.dg/bitint-2.c (foo): Add tests for constexpr var or enumerator
	arguments of _BitInt.
	* gcc.dg/bitint-31.c: Remove forgotten 0 &&.
	* gcc.dg/bitint-32.c: New test.
	* gcc.dg/bitint-33.c: New test.
	* gcc.dg/bitint-34.c: New test.
	* gcc.dg/bitint-35.c: New test.
	* gcc.dg/bitint-36.c: New test.
	* gcc.dg/fixed-point/bitint-1.c: New test.

0 files changed, 0 insertions, 0 deletions