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Author SHA1 Message Date
Benjamin Kramer c10563d14e Fix broken CHECK lines. 
llvm-svn: 199016
 2014-01-11 21:06:00 +00:00
Andrew Trick 57243da70f Fix SCEVExpander: don't try to expand quadratic recurrences outside a loop. 
Partial fix for PR17459: wrong code at -O3 on x86_64-linux-gnu
(affecting trunk and 3.3)

When SCEV expands a recurrence outside of a loop it attempts to scale
by the stride of the recurrence. Chained recurrences don't work that
way. We could compute binomial coefficients, but would hve to
guarantee that the chained AddRec's are in a perfectly reduced form.

llvm-svn: 193438
 2013-10-25 21:35:56 +00:00