Summary: Guard against regions degraded to copies.
Reviewed-by: kvn

Summary: Avoided collecting unaligned stores in Initialize node by making can_capture_store return false for same
Reviewed-by: dlong, kvn, vlivanov

Reviewed-by: neliasso, kvn

Summary: Change TypeF:eq and TypeD:eq to compare NaN values using a bitwise comparison.
Reviewed-by: kvn
Contributed-by: NStefan Anzinger <stefan.anzinger@oracle.com>

Reviewed-by: kvn

Reviewed-by: kvn