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5368a26e16
On X86 (and similar OOO cores) unrolling is very limited, and even if the runtime unrolling is otherwise profitable, the expense of a division to compute the trip count could greatly outweigh the benefits. On the A2, we unroll a lot, and the benefits of unrolling are more significant (seeing a 5x or 6x speedup is not uncommon), so we're more able to tolerate the expense, on average, of a division to compute the trip count. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237947 91177308-0d34-0410-b5e6-96231b3b80d8 |
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| .. | ||
| AArch64 | ||
| PowerPC | ||
| X86 | ||
| 2004-05-13-DontUnrollTooMuch.ll | ||
| 2005-03-06-BadLoopInfoUpdate.ll | ||
| 2006-08-24-MultiBlockLoop.ll | ||
| 2007-04-16-PhiUpdate.ll | ||
| 2007-05-05-UnrollMiscomp.ll | ||
| 2007-05-09-UnknownTripCount.ll | ||
| 2007-11-05-Crash.ll | ||
| 2011-08-08-PhiUpdate.ll | ||
| 2011-08-09-IVSimplify.ll | ||
| 2011-08-09-PhiUpdate.ll | ||
| 2011-10-01-NoopTrunc.ll | ||
| 2012-04-09-unroll-indirectbr.ll | ||
| basic.ll | ||
| ephemeral.ll | ||
| full-unroll-bad-geps.ll | ||
| full-unroll-heuristics.ll | ||
| high-cost-trip-count-computation.ll | ||
| ignore-annotation-intrinsic-cost.ll | ||
| loop-remarks.ll | ||
| nsw-tripcount.ll | ||
| partial-unroll-optsize.ll | ||
| pr10813.ll | ||
| pr11361.ll | ||
| pr14167.ll | ||
| pr18861.ll | ||
| runtime-loop1.ll | ||
| runtime-loop2.ll | ||
| runtime-loop3.ll | ||
| runtime-loop4.ll | ||
| runtime-loop5.ll | ||
| runtime-loop.ll | ||
| scevunroll.ll | ||
| shifted-tripcount.ll | ||
| tripcount-overflow.ll | ||
| unloop.ll | ||
| unroll-cleanup.ll | ||
| unroll-pragmas-disabled.ll | ||
| unroll-pragmas.ll | ||
| update-loop-info-in-subloops.ll | ||