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llvm-project/llvm/test/Transforms/LoopVectorize/X86
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Luke Lau c9faedd760
[VPlan] Fold common edges away in convertPhisToBlends (#150368) 
If a phi is widened with tail folding, all of its predecessors will have
a mask of the form

    %x = logical-and %active-lane-mask, %foo
    %y = logical-and %active-lane-mask, %bar
    %z = logical-and %active-lane-mask, %baz
    ...

We can remove the common %active-lane-mask from all of these edge masks,
which in turn allows us to simplify a lot of VPBlendRecipes.

In particular, it allows the header mask to be removed in selects with
EVL tail folding, improving RISC-V codegen on SPEC CPU 2017 for
525.x264_r, and supersedes #147243.

This also allows us to remove VPBlendRecipe and directly emit
VPInstruction::Select in another patch.
2025-09-01 07:03:33 +00:00
..
CostModel
[LoopVectorizer] Prune VFs based on plan register pressure (#132190)
2025-05-19 13:27:17 +01:00
already-vectorized.ll
Revert "[PGO] Add llvm.loop.estimated_trip_count metadata" (#151585)
2025-07-31 15:56:31 -04:00
amdlibm-calls-finite.ll
…
amdlibm-calls.ll
…
avx1.ll
…
avx512.ll
[LV] Remove use of llc from vectoriser tests (#154759)
2025-08-26 09:59:06 +01:00
consecutive-ptr-cg-bug.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#117112)
2024-11-21 08:06:56 +00:00
consecutive-ptr-uniforms.ll
[LV] Regenerate some more tests.
2025-08-14 21:21:03 +01:00
constant-fold.ll
[VPlan] Fold BinaryAnd x, 0 -> 0 in simplifyRecipe.
2025-08-27 22:35:08 +01:00
constant-vector-operand.ll
…
conversion-cost.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
cost-conditional-branches.ll
[LV] Correctly cost chains of replicating calls in legacy CM.
2025-08-31 15:13:47 +01:00
cost-constant-known-via-scev.ll
[VPlan] Fold BinaryAnd x, 0 -> 0 in simplifyRecipe.
2025-08-27 22:35:08 +01:00
cost-model-assert.ll
…
cost-model-i386.ll
Reapply "[VPlan] Fold NOT into predicate of wide compares." (#130347)
2025-04-28 20:01:37 +01:00
cost-model.ll
[LV] Correctly cost chains of replicating calls in legacy CM.
2025-08-31 15:13:47 +01:00
divs-with-tail-folding.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
drop-inbounds-flags-for-reverse-vector-pointer.ll
[VPlan] Fold common edges away in convertPhisToBlends (#150368)
2025-09-01 07:03:33 +00:00
drop-poison-generating-flags.ll
[VPlan] Allow folding not (cmp eq) -> icmp ne with other select users (#154497)
2025-08-22 07:59:14 +08:00
ephemeral-recipes.ll
…
epilog-vectorization-inductions.ll
[LV] Refine check to find epilogue IV resume value.
2025-08-01 20:54:39 +01:00
fixed-order-recurrence.ll
[VPlan] Add dedicated user for resume phi with epilogue vectorization.
2025-08-10 21:21:16 +01:00
float-induction-x86.ll
[LICM] Do not reassociate constant offset GEP (#151492)
2025-08-01 09:43:15 +02:00
fminimumnum.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
fneg-cost.ll
[LoopVectorize][NFC] Rewrite tests to check output of vplan cost model (#113697)
2024-11-19 08:55:39 +00:00
fp32_to_uint32-cost-model.ll
[LV] Remove use of llc from vectoriser tests (#154759)
2025-08-26 09:59:06 +01:00
fp64_to_uint32-cost-model.ll
[LV] Remove use of llc from vectoriser tests (#154759)
2025-08-26 09:59:06 +01:00
fp80-widest-type.ll
…
fp_to_sint8-cost-model.ll
…
funclet.ll
…
gather_scatter.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
gather-cost.ll
…
gather-vs-interleave.ll
…
gcc-examples.ll
…
gep-use-outside-loop.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
i1-reg-usage.ll
[LV] Move VPlan-based calculateRegisterUsage to VPlanAnalysis (NFC). (#135673)
2025-06-02 17:40:50 +01:00
illegal-parallel-loop-uniform-write.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
imprecise-through-phis.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
induction-costs.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
induction-step.ll
[VPlan] Use SCEV to check subtract in getOptimizableIVOf.
2025-08-23 22:00:01 +01:00
int128_no_gather.ll
…
interleave_short_tc.ll
…
interleave-cost.ll
[VPlan] Use VPIRMetadata for VPInterleaveRecipe. (#153084)
2025-08-21 18:58:10 +01:00
interleave-opaque-pointers.ll
…
interleave-ptradd-with-replicated-operand.ll
[VPlan] Materialize constant vector trip counts before final opts. (#142309)
2025-07-26 17:16:36 +01:00
interleaved-accesses-hoist-load-across-store.ll
[VPlan] Remove no-op SCALAR-STEPS after unrolling. (#123655)
2025-03-25 12:57:24 +00:00
interleaved-accesses-large-gap.ll
…
interleaved-accesses-sink-store-across-load.ll
[VPlan] Remove no-op SCALAR-STEPS after unrolling. (#123655)
2025-03-25 12:57:24 +00:00
interleaved-accesses-use-after-free.ll
…
interleaved-accesses-waw-dependency.ll
…
interleaving.ll
[VPlan] Materialize constant vector trip counts before final opts. (#142309)
2025-07-26 17:16:36 +01:00
intrinsiccost.ll
[VPlan] Add incoming values for all predecessor to ResumePHI (NFCI).
2025-02-09 11:20:20 +00:00
invariant-load-gather.ll
[VPlan] Add incoming values for all predecessor to ResumePHI (NFCI).
2025-02-09 11:20:20 +00:00
invariant-store-vectorization.ll
[VPlan] Introduce explicit broadcasts for live-ins. (#124644)
2025-02-26 13:57:51 +00:00
iv-live-outs.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
libm-vector-calls-finite.ll
[LLVM][VecLib] Refactor LIBMVEC integration to be target neutral. (#138262)
2025-05-07 11:05:25 +01:00
libm-vector-calls-VF2-VF8.ll
[LLVM][VecLib] Refactor LIBMVEC integration to be target neutral. (#138262)
2025-05-07 11:05:25 +01:00
libm-vector-calls.ll
[LLVM][VecLib] Refactor LIBMVEC integration to be target neutral. (#138262)
2025-05-07 11:05:25 +01:00
limit-vf-by-tripcount.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
lit.local.cfg
…
load-deref-pred.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
masked_load_store.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
masked-store-cost.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
max-mstore.ll
…
metadata-enable.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
min-trip-count-switch.ll
…
mul_slm_16bit.ll
[LoopVectorize][NFC] Rewrite tests to check output of vplan cost model (#113697)
2024-11-19 08:55:39 +00:00
multi-exit-cost.ll
[VPlan] Remove no-op SCALAR-STEPS after unrolling. (#123655)
2025-03-25 12:57:24 +00:00
no_fpmath_with_hotness.ll
…
no_fpmath.ll
…
no-vector.ll
…
nontemporal.ll
…
optsize.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
outer_loop_test1_no_explicit_vect_width.ll
[VPlan] Handle canonical VPWidenIntOrFpInduction in branch-condition simplification (#153539)
2025-08-21 07:34:54 +08:00
parallel-loops-after-reg2mem.ll
…
parallel-loops.ll
[VPlan] Materialize constant vector trip counts before final opts. (#142309)
2025-07-26 17:16:36 +01:00
pointer-runtime-checks-unprofitable.ll
…
powof2div.ll
…
pr23997.ll
[VPlan] Add incoming values for all predecessor to ResumePHI (NFCI).
2025-02-09 11:20:20 +00:00
pr34438.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
pr35432.ll
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
pr36524.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
pr39160.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#117112)
2024-11-21 08:06:56 +00:00
pr42674.ll
[ConstantFolding] Infer getelementptr nuw flag (#119214)
2024-12-09 16:44:05 +01:00
pr47437.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
pr48340.ll
[VPlan] Expand VPWidenPointerInductionRecipe into separate recipes (#148274)
2025-08-05 16:54:02 +08:00
pr51366-sunk-instruction-used-outside-of-loop.ll
[VPlan] Allow folding not (cmp eq) -> icmp ne with other select users (#154497)
2025-08-22 07:59:14 +08:00
pr54413-select-interleave-count-loop-with-cost-zero.ll
…
pr54634.ll
[VPlan] Introduce explicit broadcasts for live-ins. (#124644)
2025-02-26 13:57:51 +00:00
pr55096-scalarize-add.ll
Reapply "[VPlan] Fold NOT into predicate of wide compares." (#130347)
2025-04-28 20:01:37 +01:00
pr56319-vector-exit-cond-optimization-epilogue-vectorization.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
pr72969.ll
[VPlan] Mark VPFirstOrderRecurrencePHI as not reading/writing memory.
2025-06-15 22:00:47 +01:00
pr81872.ll
[VPlan] Add dedicated user for resume phi with epilogue vectorization.
2025-08-10 21:21:16 +01:00
pr109581-unused-blend.ll
[VPlan] Materialize constant vector trip counts before final opts. (#142309)
2025-07-26 17:16:36 +01:00
pr131359-dead-for-splice.ll
[VPlan] Materialize constant vector trip counts before final opts. (#142309)
2025-07-26 17:16:36 +01:00
pr141968-instsimplifyfolder.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
predicate-switch.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
predicated-instruction-cost.ll
…
propagate-metadata.ll
…
ptr-indvar-crash.ll
…
rauw-bug.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#117112)
2024-11-21 08:06:56 +00:00
reduction-crash.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
reduction-fastmath.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
reduction-small-size.ll
[VPlan] Add ReductionStartVector VPInstruction. (#142290)
2025-06-09 20:59:12 +01:00
redundant-vf2-cost.ll
Fix test failures introduced by PR #113697 (#116941)
2024-11-20 09:10:51 +00:00
reg-usage-debug.ll
[LV] Move VPlan-based calculateRegisterUsage to VPlanAnalysis (NFC). (#135673)
2025-06-02 17:40:50 +01:00
reg-usage.ll
[LV] Move VPlan-based calculateRegisterUsage to VPlanAnalysis (NFC). (#135673)
2025-06-02 17:40:50 +01:00
register-assumption.ll
…
replicate-recipe-with-only-first-lane-used.ll
[VPlan] Check Def2LaneDefs first in cloneForLane. (NFC)
2025-08-21 11:34:49 +01:00
replicate-uniform-call.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
runtime-limit.ll
…
scatter_crash.ll
[VPlan] Expand VPWidenIntOrFpInductionRecipe into separate recipes (#118638)
2025-06-17 18:24:07 +01:00
scev-checks-unprofitable.ll
[VPlan] Add dedicated user for resume phi with epilogue vectorization.
2025-08-10 21:21:16 +01:00
slm-no-vectorize.ll
[IR] Convert from nocapture to captures(none) (#123181)
2025-01-29 16:56:47 +01:00
small-size.ll
[VPlan] Materialize constant vector trip counts before final opts. (#142309)
2025-07-26 17:16:36 +01:00
strided_load_cost.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
struct-store.ll
…
svml-calls-finite.ll
…
svml-calls.ll
…
tail_folding_and_assume_safety.ll
…
tail_loop_folding.ll
[VPlan] Add dedicated user for resume phi with epilogue vectorization.
2025-08-10 21:21:16 +01:00
transform-narrow-interleave-to-widen-memory-gaps.ll
[LV] Add additional tests for narrowing interleave groups.
2025-03-15 21:13:49 +00:00
transform-narrow-interleave-to-widen-memory.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
tripcount.ll
…
uint64_to_fp64-cost-model.ll
[VPlan] Remove stray space when printing VPWidenCastRecipe.
2024-12-24 20:23:48 +00:00
uniform_load.ll
[VPlan] Remove VPVectorPointer for part 0 after unrolling. (#149735)
2025-07-27 13:53:26 +01:00
uniform_mem_op.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
uniform-phi.ll
[LV] Don't consider IV increments uniform if exit value is used outside.
2025-01-12 22:03:21 +00:00
uniformshift.ll
[LoopVectorize][NFC] Rewrite tests to check output of vplan cost model (#113697)
2024-11-19 08:55:39 +00:00
unroll_selection.ll
…
unroll-pm.ll
…
unroll-small-loops.ll
…
veclib-calls.ll
…
vect.omp.force.ll
…
vect.omp.force.small-tc.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
vector_max_bandwidth.ll
…
vector_ptr_load_store.ll
…
vector-scalar-select-cost.ll
[LoopVectorize][NFC] Rewrite tests to check output of vplan cost model (#113697)
2024-11-19 08:55:39 +00:00
vectorization-remarks-loopid-dbg.ll
[LV] Remove use of llc from vectoriser tests (#154759)
2025-08-26 09:59:06 +01:00
vectorization-remarks-missed.ll
[LV] Emit all remarks for unvectorizable instructions (#153833)
2025-08-18 18:04:53 +01:00
vectorization-remarks-profitable.ll
…
vectorization-remarks.ll
[LV] Remove use of llc from vectoriser tests (#154759)
2025-08-26 09:59:06 +01:00
vectorize-force-tail-with-evl.ll
[VPlan] Add dedicated user for resume phi with epilogue vectorization.
2025-08-10 21:21:16 +01:00
vectorize-interleaved-accesses-gap.ll
[VPlan] Add dedicated user for resume phi with epilogue vectorization.
2025-08-10 21:21:16 +01:00
vectorize-only-for-real.ll
…
vplan-native-inner-loop-only.ll
…
vplan-vp-intrinsics.ll
[VPlan] Add VF as operand to VPScalarIVStepsRecipe.
2025-03-28 21:48:59 +00:00
widened-value-used-as-scalar-and-first-lane.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00
x86_fp80-interleaved-access.ll
…
x86_fp80-vector-store.ll
Revert "[InstCombine] Infer nuw for gep inbounds from base of object" (#120460)
2024-12-18 19:06:34 +01:00
x86-interleaved-accesses-masked-group.ll
[VPlan] Also materialize broadcasts for backedge-taken-counts (NFC).
2025-03-18 22:35:18 +00:00
x86-interleaved-store-accesses-with-gaps.ll
[InstCombine] Infer nusw + nneg -> nuw for getelementptr (#111144)
2024-12-05 14:36:40 +01:00
x86-pr39099.ll
…
x86-predication.ll
[VPlan] Run final VPlan simplifications before codegen.
2025-08-16 18:54:27 +01:00