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68e4e8a8d0db031840ff0495cdde1b6db63f49ef
clang-p2996/llvm/test/Transforms/LoopVectorize/X86
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Florian Hahn b446ec56a2 [LV] Make sure the MaxVF is a power-of-2 by rounding down. 
LV currently only supports power of 2 vectorization factors, which has
been made explicit with the assertion added in
840450549c.

However, if the widest type is not a power-of-2 the computed MaxVF won't
be a power-of-2 either. This patch updates computeFeasibleMaxVF to
ensure the returned value is a power-of-2 by rounding down to the
nearest power-of-2.

Fixes PR46139.

Reviewers: Ayal, gilr, rengolin

Reviewed By: Ayal

Differential Revision: https://reviews.llvm.org/D80870
2020-06-02 10:40:49 +01:00
..
already-vectorized.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
avx1.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
avx512.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
consecutive-ptr-cg-bug.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
consecutive-ptr-uniforms.ll
[LV] Scalar with predication must not be uniform
2019-12-03 19:50:24 +02:00
constant-fold.ll
Recommit #2: "[LV] Induction Variable does not remain scalar under tail-folding."
2020-05-13 13:50:09 +01:00
constant-vector-operand.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
conversion-cost.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
cost-model-assert.ll
[LoopVectorize] add test that asserted after cost model change (PR43582); NFC
2019-10-07 14:48:27 +00:00
cost-model.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
float-induction-x86.ll
[InstComine] Forego of one-use check in (X - (X & Y)) --> (X & ~Y) if Y is a constant
2020-03-06 21:39:07 +03:00
fneg-cost.ll
[LoopVectorize] Add FNeg instruction support
2019-05-30 18:19:35 +00:00
force-ifcvt.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
fp32_to_uint32-cost-model.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
fp64_to_uint32-cost-model.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
fp80-widest-type.ll
[LV] Make sure the MaxVF is a power-of-2 by rounding down.
2020-06-02 10:40:49 +01:00
fp_to_sint8-cost-model.ll
[X86][CostModel] Improve costs for fp_to_uint/fp_to_sint for vXi8/vXi16/v2i32 results.
2020-04-27 10:35:15 -07:00
funclet.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
gather_scatter.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
gather-cost.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
gather-vs-interleave.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
gcc-examples.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
illegal-parallel-loop-uniform-write.ll
Migrate function attribute "no-frame-pointer-elim"="false" to "frame-pointer"="none" as cleanups after D56351
2019-12-24 16:27:51 -08:00
imprecise-through-phis.ll
[LoopVectorize] regenerate test checks; NFC
2020-05-29 13:02:45 -04:00
int128_no_gather.ll
Migrate function attribute "no-frame-pointer-elim" to "frame-pointer"="all" as cleanups after D56351
2019-12-24 15:57:33 -08:00
interleave_short_tc.ll
[LV] Move interleave_short_tc.ll into the X86 directory to hopefully make fix non-X86 bots.
2019-11-01 10:41:18 -07:00
interleaved-accesses-large-gap.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
interleaved-accesses-waw-dependency.ll
[LV] Fix test failure in a Release build.
2019-08-02 08:33:41 +00:00
interleaving.ll
[CostModel][X86] Improve extract/insert element costs (PR43605)
2020-02-27 15:54:13 +00:00
invariant-load-gather.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
invariant-store-vectorization.ll
[LoopVectorize] auto-generate complete test checks; NFC
2020-05-29 13:01:35 -04:00
lit.local.cfg
[lit] Delete empty lines at the end of lit.local.cfg NFC
2019-06-17 09:51:07 +00:00
load-deref-pred.ll
[LoopVectorize] regenerate test checks; NFC
2020-05-29 13:01:35 -04:00
masked_load_store.ll
Recommit #2: "[LV] Induction Variable does not remain scalar under tail-folding."
2020-05-13 13:50:09 +01:00
max-mstore.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
metadata-enable.ll
Recommit #2: "[LV] Induction Variable does not remain scalar under tail-folding."
2020-05-13 13:50:09 +01:00
min-trip-count-switch.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
mul_slm_16bit.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
no_fpmath_with_hotness.ll
[LV] Interleaving should not exceed estimated loop trip count.
2019-10-28 10:58:22 -07:00
no_fpmath.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
no-vector.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
nontemporal.ll
[LV] Suppress vectorization in some nontemporal cases
2019-06-17 17:20:08 +00:00
optsize.ll
[LV] Either get invariant condition OR vector condition.
2020-05-24 17:16:42 +01:00
outer_loop_test1_no_explicit_vect_width.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
parallel-loops-after-reg2mem.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
parallel-loops.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
powof2div.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr23997.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr34438.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr35432.ll
Recommit #2: "[LV] Induction Variable does not remain scalar under tail-folding."
2020-05-13 13:50:09 +01:00
pr36524.ll
Recommit #2: "[LV] Induction Variable does not remain scalar under tail-folding."
2020-05-13 13:50:09 +01:00
pr39160.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
pr42674.ll
[X86] Replace -mcpu with -mattr on some tests.
2019-09-06 21:48:44 +00:00
propagate-metadata.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
ptr-indvar-crash.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
rauw-bug.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
reduction-crash.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
reduction-fastmath.ll
[LoopVectorize] auto-generate complete test checks; NFC
2020-05-29 13:14:08 -04:00
reduction-small-size.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
redundant-vf2-cost.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
reg-usage-debug.ll
recommit: [LoopVectorize][PowerPC] Estimate int and float register pressure separately in loop-vectorize
2019-10-12 02:53:04 +00:00
reg-usage.ll
recommit: [LoopVectorize][PowerPC] Estimate int and float register pressure separately in loop-vectorize
2019-10-12 02:53:04 +00:00
register-assumption.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
scatter_crash.ll
Migrate function attribute "no-frame-pointer-elim" to "frame-pointer"="all" as cleanups after D56351
2019-12-24 15:57:33 -08:00
slm-no-vectorize.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
small-size.ll
Recommit #2: "[LV] Induction Variable does not remain scalar under tail-folding."
2020-05-13 13:50:09 +01:00
strided_load_cost.ll
Recommit #2: "[LV] Induction Variable does not remain scalar under tail-folding."
2020-05-13 13:50:09 +01:00
struct-store.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
svml-calls-finite.ll
[LoopVectorize] Move testing for SVML vectorization of exp2f_finite/exp2_finite from svml-calls.ll to svml-calls-finite.ll where the finite versions of log, pow, and exp already were.
2020-04-08 18:13:55 -07:00
svml-calls.ll
[LoopVectorize] Move testing for SVML vectorization of exp2f_finite/exp2_finite from svml-calls.ll to svml-calls-finite.ll where the finite versions of log, pow, and exp already were.
2020-04-08 18:13:55 -07:00
tail_folding_and_assume_safety.ll
llc: Change behavior of -mcpu with existing attribute
2020-01-07 10:10:25 -05:00
tail_loop_folding.ll
[LoopVectorize] auto-generate complete checks; NFC
2020-05-29 13:01:35 -04:00
tripcount.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
uint64_to_fp64-cost-model.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
uniform_load.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
uniform-phi.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
uniformshift.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
unroll_selection.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
unroll-pm.ll
[PassManagerBuilder] Add option for interleaved loops, for loop vectorize.
2019-04-30 21:29:20 +00:00
unroll-small-loops.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
veclib-calls.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vect.omp.force.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vect.omp.force.small-tc.ll
Recommit #2: "[LV] Induction Variable does not remain scalar under tail-folding."
2020-05-13 13:50:09 +01:00
vector_max_bandwidth.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vector_ptr_load_store.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vector-scalar-select-cost.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vectorization-remarks-loopid-dbg.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vectorization-remarks-missed.ll
[DebugInfo@O2][LoopVectorize] pr39024: Vectorized code linenos step through loop even after completion
2019-06-19 10:50:47 +00:00
vectorization-remarks-profitable.ll
Migrate function attribute "no-frame-pointer-elim" to "frame-pointer"="all" as cleanups after D56351
2019-12-24 15:57:33 -08:00
vectorization-remarks.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
vectorize-only-for-real.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
x86_fp80-interleaved-access.ll
[LV] Deny irregular types in interleavedAccessCanBeWidened
2019-06-17 12:02:24 +00:00
x86_fp80-vector-store.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
x86-interleaved-accesses-masked-group.ll
Recommit #2: "[LV] Induction Variable does not remain scalar under tail-folding."
2020-05-13 13:50:09 +01:00
x86-pr39099.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00
x86-predication.ll
Revert "Temporarily Revert "Add basic loop fusion pass.""
2019-04-17 04:52:47 +00:00