Kevin Qin a998735def Run LICM pass after loop unrolling pass. ...

Runtime unrollng will introduce a runtime check in loop prologue.
If the unrolled loop is a inner loop, then the proglogue will be inside
the outer loop. LICM pass can help to promote the runtime check out if
the checked value is loop invariant.

llvm-svn: 231630

2015-03-09 06:14:07 +00:00

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