Merge remote-tracking branch 'gnu/master' into HEAD
Revert "-fuse-caller-save - Support in lra"

This reverts commit e5d9420b3864e1bee10962f9962086f6b4424bd9.

Conflicts:
	gcc/ChangeLog
Revert "gcc/"

This reverts commit d2b854bc935a18434b59f77d8a6e329e4146a2ba.