Displaying 1 result from an estimated 1 matches for "0275d044".
2017 Jun 30
2
LoopSimplify pass prevents loop unrolling
Hi All,
In the attached test case there, is an unnested loop with 2 iterations. The
loop latch block is terminated by an unconditional branch, so simplifycfg
folds the almost empty latch block into its predecessor which is the loop
header. This results in an additional backedge in the CFG, so when
LoopRotate pass is called it canonicalizes the loop into a nested loop.
However, now the loop