[ARM target attributes] Fix effective_target tests

[ARM target attributes] Fix effective_target tests

2016-01-20  Christophe Lyon  <christophe.lyon@linaro.org>

	gcc/
	* doc/sourcebuild.texi (arm_crypto_pragma_ok): Document new entry.
	(arm_fp_ok): Likewise.
	(arm_fp): Likewise.
	(arm_crypto): Likewise.

	gcc/testsuite/
	* lib/target-supports.exp
	(check_effective_target_arm_fp_ok_nocache): New.
	(check_effective_target_arm_fp_ok): New.
	(add_options_for_arm_fp): New.
	(check_effective_target_arm_crypto_ok_nocache): Require
	target_arm_v8_neon_ok instead of arm32.
	(check_effective_target_arm_crypto_pragma_ok_nocache): New.
	(check_effective_target_arm_crypto_pragma_ok): New.
	(add_options_for_arm_vfp): New.
	* gcc.target/arm/attr-crypto.c: Use arm_crypto_pragma_ok effective
	target. Do not force -mfloat-abi=softfp, use arm_fp_ok effective
	target instead. Force initial fpu to vfp.
	* gcc.target/arm/attr-neon-builtin-fail.c: Do not force
	-mfloat-abi=softfp, use arm_fp_ok effective target instead.
	* gcc.target/arm/attr-neon-fp16.c: Likewise. Remove arm_neon_ok
	dependency.
	* gcc.target/arm/attr-neon2.c: Do not force -mfloat-abi=softfp,
	use arm_vfp effective target instead. Force initial fpu to vfp.
	* gcc.target/arm/attr-neon3.c: Likewise.
	* gcc.target/arm/cmp-2.c: Use arm_fp_ok effective target instead of
	arm_vfp_ok.
	* gcc.target/arm/unsigned-float.c: Likewise.
	* gcc.target/arm/vfp-1.c: Likewise.
	* gcc.target/arm/vfp-ldmdbd.c: Likewise.
	* gcc.target/arm/vfp-ldmdbs.c: Likewise.
	* gcc.target/arm/vfp-ldmiad.c: Likewise.
	* gcc.target/arm/vfp-ldmias.c: Likewise.
	* gcc.target/arm/vfp-stmdbd.c: Likewise.
	* gcc.target/arm/vfp-stmdbs.c: Likewise.
	* gcc.target/arm/vfp-stmiad.c: Likewise.
	* gcc.target/arm/vfp-stmias.c: Likewise.
	* gcc.target/arm/vnmul-1.c: Likewise.
	* gcc.target/arm/vnmul-2.c: Likewise.
	* gcc.target/arm/vnmul-3.c: Likewise.
	* gcc.target/arm/vnmul-4.c: Likewise.

From-SVN: r232616