Revert 224119 "This patch recognizes (+ (+ v0, v1) (+ v2, v3)), reorders them...

Revert 224119 "This patch recognizes (+ (+ v0, v1) (+ v2, v3)), reorders them for bundling into vector of loads,
and vectorizes it." 

This was re-ordering floating point data types resulting in mismatch in output.

llvm-svn: 224424