Hal Finkel 25e4a0d418 Don't form PPC CTR loops for over-sized exit counts ...

Although you can't generate this from C on PPC64, if you have a loop using a
64-bit counter on PPC32 then you can't form a CTR-based loop for it. This had
been cauing the PPCCTRLoops pass to assert.

Thanks to Joerg Sonnenberger for providing a test case!

llvm-svn: 185361

2013-07-01 19:34:59 +00:00

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