maxjhandsome
/
llvm-project
forked from OSchip/llvm-project
1
0
Fork 0
Code Issues Pull Requests Packages Releases Wiki Activity
54,958 Commits 23 Branches 0 Tags 2.2 GiB
Commit Graph

2 Commits

Author SHA1 Message Date
Nick Lewycky 52348300a4 Wind SCEV back in time, to Nov 18th. This 'fixes' PR3275, PR3294, PR3295, 
PR3296 and PR3302.

llvm-svn: 62160
 2009-01-13 09:18:58 +00:00
Nick Lewycky 1c451ae43e Add a utility function that detects whether a loop is guaranteed to be finite. 
Use it to safely handle less-than-or-equals-to exit conditions in loops. These
also occur when the loop exit branch is exit on true because SCEV inverses the
icmp predicate.

Use it again to handle non-zero strides, but only with an unsigned comparison
in the exit condition.

llvm-svn: 59528
 2008-11-18 15:10:54 +00:00