PR sanitizer/80953
	Merge from LLVM revision 355980
	* asan/asan_allocator.h (kAllocatorSpace): Define for SPARC.
	(kAllocatorSize): Likewise.
	(DefaultSizeClassMap): Likewise.
	* asan/asan_mapping.h (kSPARC64_ShadowOffset64): Define.
	(SHADOW_OFFSET): Define for SPARC.
	Include asan_mapping_sparc64.h for SPARC 64-bit.
	* asan/asan_mapping_sparc64.h: New file.

From-SVN: r269641