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llvm-project/llvm/test/Transforms/LoopUnroll
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Matthias Braun b30c9c9378 LoopUnrollRuntime: Add weights to all branches 
Make sure every conditional branch constructed by `LoopUnrollRuntime`
code sets branch weights.

- Add new 1:127 weights for the conditional jumps checking whether the
  whole (unrolled) loop should be skipped in the generated prolog or
  epilog code.
- Remove `updateLatchBranchWeightsForRemainderLoop` function and just
  add weights immediately when constructing the relevant branches. This
  leads to simpler code and makes the code more obvious as every call
  to `CreateCondBr` now has a `BranchWeights` parameter.
- Rework formula for epilogue latch weights, to assume equal
  distribution of remainders and remove `assert` (as I was able to
  reach this code when forcing small unroll factors on the commandline).

Differential Revision: https://reviews.llvm.org/D158642
2023-09-11 14:23:29 -07:00
..
AArch64
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
AMDGPU
[NFC][Py Reformat] Reformat lit.local.cfg python files in llvm
2023-05-17 17:03:15 +02:00
ARM
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
Hexagon
[NFC][Py Reformat] Reformat lit.local.cfg python files in llvm
2023-05-17 17:03:15 +02:00
PowerPC
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
RISCV
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
WebAssembly
[NFC][Py Reformat] Reformat lit.local.cfg python files in llvm
2023-05-17 17:03:15 +02:00
X86
[X86] AMD Genoa (znver4) Change LoopMicroOpBufferSize to handle minimal unrolling of loops
2023-07-26 16:01:56 +05:30
2004-05-13-DontUnrollTooMuch.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
2005-03-06-BadLoopInfoUpdate.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
2006-08-24-MultiBlockLoop.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
2007-04-16-PhiUpdate.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
2007-05-05-UnrollMiscomp.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
2007-05-09-UnknownTripCount.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
2007-11-05-Crash.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
2011-08-08-PhiUpdate.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
2011-08-09-IVSimplify.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
2011-08-09-PhiUpdate.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
2011-10-01-NoopTrunc.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
2012-04-09-unroll-indirectbr.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
add-folding-overflow.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
assume-timeout.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
basic.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
callbr.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
complete_unroll_profitability_with_assume.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
convergent.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
dce.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
debug-info.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
disable_nonforced_count.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
disable_nonforced_enable.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
disable_nonforced_full.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
disable_nonforced.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
disable-full-unroll-by-opt.ll
…
disable-loop-unrolling_forced.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
ephemeral.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
epilog_const_phi.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
followup.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
full-unroll-avoid-partial.ll
[LoopUnroll] Prevent LoopFullUnrollPass to perform partial/runtime unrolling
2023-04-13 10:21:24 +05:30
full-unroll-bad-cost.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
full-unroll-crashers.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
full-unroll-heuristics-2.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
full-unroll-heuristics-cmp.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
full-unroll-heuristics-dce.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
full-unroll-heuristics-geps.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
full-unroll-heuristics-phi-prop.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
full-unroll-heuristics.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
full-unroll-invariant.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
full-unroll-keep-first-exit.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
full-unroll-one-unpredictable-exit.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
FullUnroll.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
guard-cost-for-unrolling.ll
[TTI] Treat AND/OR with widenable conditions as free of cost
2023-03-14 20:55:17 +07:00
high-cost-trip-count-computation.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
ignore-annotation-intrinsic-cost.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
invalidate_right_loop.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
loop-block-disposition-after-full-unroll.ll
…
loop-block-disposition-after-loop-peeling.ll
[LoopPeel] Clear dispositions after peeling
2023-07-19 10:39:59 +02:00
loop-remarks-with-hotness.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
loop-remarks.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
multiple-exits.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
noalias.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
nonlatchcondbr.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
not-rotated.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
opt-levels.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
optsize-loop-size.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
partial-unroll-const-bounds.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
partial-unroll-dead-instructions.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
partial-unroll-non-latch-exit.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
partially-unroll-unconditional-latch.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
peel-branch-weights.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
peel-loop2.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
peel-loop-and-unroll.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
peel-loop-conditions-pgo-1.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
peel-loop-conditions-pgo-2.ll
[NFC] Port all LoopUnroll tests to -passes= syntax
2022-12-08 02:38:47 +03:00
peel-loop-conditions.ll
[LoopUnroll] Peel iterations based on select conditions
2023-05-24 00:57:57 -07:00
peel-loop-inner.ll
Revert "reland e5581df60a35 [SimplifyCFG] accumulate bonus insts cost"
2022-10-25 12:15:39 -04:00
peel-loop-irreducible.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
peel-loop-negative.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
peel-loop-nests.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
peel-loop-noalias-scope-decl.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
peel-loop-not-forced.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
peel-loop-pgo-deopt-idom-2.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
peel-loop-pgo-deopt-idom.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
peel-loop-pgo-deopt.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
peel-loop-pgo.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
peel-loop-phi-analysis.ll
Expand loop peeling phi computation to handle binary ops and casts
2022-12-05 12:10:53 -05:00
peel-loop-scev-invalidate.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
peel-loop.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
peel-multiple-unreachable-exits.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
peel-to-turn-invariant-accesses-dereferenceable.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
pr10813.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
pr11361.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
pr14167.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
pr18861.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
pr27157.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
pr28132.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
pr31718.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
pr33437.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
pr45939-peel-count-and-complete-unroll.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
rebuild_lcssa.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
revert-D110922.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
revisit.ll
[LoopUnroll] Prevent LoopFullUnrollPass to perform partial/runtime unrolling
2023-04-13 10:21:24 +05:30
runtime-epilog-debuginfo.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
runtime-exit-phi-scev-invalidation.ll
LoopUnrollRuntime: Add weights to all branches
2023-09-11 14:23:29 -07:00
runtime-li.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
runtime-loop1.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
runtime-loop2.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
runtime-loop3.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
runtime-loop4.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
runtime-loop5.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
runtime-loop-at-most-two-exits.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
runtime-loop-branchweight.ll
LoopUnrollRuntime: Add weights to all branches
2023-09-11 14:23:29 -07:00
runtime-loop-known-exit.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
runtime-loop-multiexit-dom-verify.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
runtime-loop-multiple-exits.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
runtime-loop-non-exiting-latch.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
runtime-loop.ll
LoopUnrollRuntime: Add weights to all branches
2023-09-11 14:23:29 -07:00
runtime-multiexit-heuristic.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
runtime-small-upperbound.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
runtime-unroll-assume-no-remainder.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
runtime-unroll-remainder.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
scev-dispositions-type-not-scevable.ll
…
scev-forget-exit-phis.ll
[LoopUnroll] Forget exit values when making changes.
2022-10-18 15:12:24 +01:00
scev-invalidation-lcssa.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
scevunroll.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
shifted-tripcount.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
tripcount-overflow.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
unloop.ll
[NFC] Port all (but one) LoopUnroll tests to -passes= syntax
2022-12-07 20:15:43 +03:00
unroll-after-peel.ll
Revert "Reland "[SimplifyCFG] FoldBranchToCommonDest(): deal with mismatched IV's in PHI's in common successor block""
2022-12-20 18:36:42 +03:00
unroll-cleanup.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
unroll-cleanuppad.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
unroll-cost-symbolic-execute.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
unroll-count.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
unroll-header-exiting-with-phis-multiple-exiting-blocks.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
unroll-header-exiting-with-phis.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
unroll-heuristics-pgo.ll
LoopUnrollRuntime: Add weights to all branches
2023-09-11 14:23:29 -07:00
unroll-loop-invalidation.ll
…
unroll-maxcount.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
unroll-opt-attribute.ll
[LoopUnroll] Fold add chains during unrolling
2023-07-05 09:54:28 +02:00
unroll-pragmas-disabled.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
unroll-pragmas.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
unroll-preserve-scev-lcssa.ll
…
unroll-unconditional-latch.ll
[LoopUnroll] Convert some tests to opaque pointers (NFC)
2022-12-23 16:35:26 +01:00
update-loop-info-in-subloops.ll
…
verify-dominators.ll
[LoopUnroll] Add test case exposing crash with d0907ce7ed9f.
2023-01-20 16:08:25 +00:00
wrong_assert_in_peeling.ll
[test] Remove duplicate RUN lines in Transform tests
2022-12-08 11:47:16 +01:00