[Patch testsuite patch 10/17] Add options for floatN when checking effective target for support

[James Greenhalgh]

Hi,

As Joseph and I discussed in
https://gcc.gnu.org/ml/gcc-patches/2016-11/msg00239.html the
check_effective_target_float<N><x> tests should add any options which the
target requires to enable those float types (add_options_for_float<N><x>.

This patch ensures those options get added, which presently only changes
the testsuite behaviour for the (out-of-tree but submitted for review)
ARM support for _Float16.

Tested on arm-none-linux-gnueabihf with those patches applied, to show that
the _Float16 tests now run.

OK?

Thanks,
James

---

gcc/testsuite/

2016-11-07  James Greenhalgh  <james.greenhalgh@arm.com>

	* lib/target-supports.exp (check_effective_target_float16): Add
	options for _Float16.
	(check_effective_target_float32): Add options for _Float32.
	(check_effective_target_float64): Add options for _Float64.
	(check_effective_target_float128): Add options for _Float128.
	(check_effective_target_float32x): Add options for _Float32x.
	(check_effective_target_float64x): Add options for _Float64x.
	(check_effective_target_float128x): Add options for _Float128x.

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