PR target/69875
	* config/arm/arm.h (TARGET_HAVE_LPAE): Define.
	* config/arm/unspecs.md (VUNSPEC_LDRD_ATOMIC): New value.
	* config/arm/sync.md (arm_atomic_loaddi2_ldrd): New pattern.
	(atomic_loaddi_1): Delete.
	(atomic_loaddi): Rewrite expander using the above changes.

	* gcc.target/arm/atomic_loaddi_acquire.x: New file.
	* gcc.target/arm/atomic_loaddi_relaxed.x: Likewise.
	* gcc.target/arm/atomic_loaddi_seq_cst.x: Likewise.
	* gcc.target/arm/atomic_loaddi_1.c: New test.
	* gcc.target/arm/atomic_loaddi_2.c: Likewise.
	* gcc.target/arm/atomic_loaddi_3.c: Likewise.
	* gcc.target/arm/atomic_loaddi_4.c: Likewise.
	* gcc.target/arm/atomic_loaddi_5.c: Likewise.
	* gcc.target/arm/atomic_loaddi_6.c: Likewise.
	* gcc.target/arm/atomic_loaddi_7.c: Likewise.
	* gcc.target/arm/atomic_loaddi_8.c: Likewise.
	* gcc.target/arm/atomic_loaddi_9.c: Likewise.

From-SVN: r233658