aarch64.md (mov<mode>:GPF): Don't call force_reg if op1 is an fp zero.

aarch64.md (mov<mode>:GPF): Don't call force_reg if op1 is an fp zero.

gcc/
	* config/aarch64/aarch64.md (mov<mode>:GPF): Don't call force_reg if
	op1 is an fp zero.
	(movsf_aarch64): Change condition from register_operand to
	aarch64_reg_or_fp_zero for op1.  Change type for alternative 6 to
	load1.  Change type for alternative 7 to store1.
	(movdf_aarch64): Likewise.
gcc/testsuite/
	* gcc.target/aarch64/fmovd-zero-mem.c: New.
	* gcc.target/aarch64/fmovd-zero-reg.c: New.
	* gcc.target/aarch64/fmovf-zero-mem.c: New.
	* gcc.target/aarch64/fmovf-zero-reg.c: New.
	* gcc.target/aarch64/fmovld-zero-mem.c: New.
	* gcc.target/aarch64/fmovld-zero-mem.c: New.
	* gcc.target/aarch64/fmovd-zero.c: Delete.
	* gcc.target/aarch64/fmovf-zero.c: Delete.

From-SVN: r224673