K 10
svn:author
V 3
dim
K 8
svn:date
V 27
2013-12-05T21:49:41.454882Z
K 7
svn:log
V 407
MFC r255076:

Pull in r189672 from upstream llvm trunk:

  InstCombine: Check for zero shift amounts before subtracting one
  causing integer overflow.

  PR17026. Also avoid undefined shifts and shift amounts larger than 64
  bits (those are always undef because we can't represent integer types
  that large).

This should fix assertion failures when building the emulators/xmame
port.

Reported by:	bapt

END