R11 used but not saved

[llvmbot]

Bugzilla Link	9163
Resolution	WONTFIX
Resolved on	Nov 25, 2011 14:14
Version	trunk
OS	Linux
Attachments	proposed patch
Reporter	LLVM Bugzilla Contributor
CC	@d0k

Extended Description

In functions where a frame register is generated, R11 is used for that purpose but the callers R11 is not saved unless a register in R6-R10 is saved.

[d0k]

The SystemZ backend was removed.