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llvm-project/llvm/test/Transforms/IndVarSimplify
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Max Kazantsev c913dccfde [SCEV] Use lshr in implications 
This patch adds support for implication inference logic for the
following pattern:
```
  lhs < (y >> z) <= y, y <= rhs --> lhs < rhs
```
We should be able to use the fact that value shifted to right is
not greater than the original value (provided it is non-negative).

Differential Revision: https://reviews.llvm.org/D116150
Reviewed-By: apilipenko
2022-01-25 13:25:19 +07:00
..
AArch64
Reapply 5ec2386 "Reapply db28934 "[IndVars] Pass TTI to replaceCongruentIVs""
2021-11-10 17:36:14 +07:00
AMDGPU
…
ARM
[NFCI] SCEVExpander: emit intrinsics for integral {u,s}{min,max} SCEV expressions
2021-03-06 21:52:46 +03:00
NVPTX
…
X86
Reapply 5ec2386 "Reapply db28934 "[IndVars] Pass TTI to replaceCongruentIVs""
2021-11-10 17:36:14 +07:00
2002-09-09-PointerIndVar.ll
…
2003-04-16-ExprAnalysis.ll
…
2003-09-23-NotAtTop.ll
…
2003-12-10-RemoveInstrCrash.ll
…
2003-12-15-Crash.ll
…
2004-03-10-PHIInsertionBug.ll
…
2004-04-05-InvokeCastCrash.ll
…
2004-04-07-ScalarEvolutionCrash.ll
…
2005-02-11-InvokeCrash.ll
…
2005-02-17-TruncateExprCrash.ll
…
2005-02-26-ExitValueCompute.ll
…
2005-06-15-InstMoveCrash.ll
…
2005-11-18-Crash.ll
…
2006-03-31-NegativeStride.ll
…
2006-06-16-Indvar-LCSSA-Crash.ll
…
2006-09-20-LFTR-Crash.ll
…
2006-12-10-BitCast.ll
…
2007-01-06-TripCount.ll
…
2007-06-06-DeleteDanglesPtr.ll
…
2007-11-23-BitcastCrash.ll
…
2008-06-15-SCEVExpanderBug.ll
…
2008-09-02-IVType.ll
…
2008-10-03-CouldNotCompute.ll
…
2008-11-25-APFloatAssert.ll
…
2009-04-22-IndvarCrash.ll
…
2009-04-27-Floating.ll
…
2009-05-24-useafterfree.ll
…
2011-09-10-widen-nsw.ll
…
2011-09-19-vectoriv.ll
…
2011-09-27-hoistsext.ll
…
2011-10-27-lftrnull.ll
[SCEV] Add false->any implication
2021-03-19 11:29:48 +07:00
2011-11-01-lftrptr.ll
[ScalarEvolution] Ensure backedge-taken counts are not pointers.
2021-06-21 16:24:16 -07:00
2011-11-17-selfphi.ll
…
2012-10-19-congruent-constant.ll
…
2014-06-21-congruent-constant.ll
[NewPM][LoopUnswitch] Pin loop-unswitch to legacy PM or use simple-loop-unswitch
2020-08-06 10:56:00 -07:00
2020-12-15-trunc-bug-expensive-range-inference.ll
[SCEV] Add missing type check into getRangeForAffineNoSelfWrappingAR
2020-12-15 14:50:32 +07:00
ada-loops.ll
…
addrec_no_exec_on_every_iteration.ll
Return "[SCEV] Prove implicaitons via AddRec start"
2020-10-08 11:15:35 +07:00
ashr-expansion.ll
[SCEVExpander] Drop poison generating flags when reusing instructions
2021-11-29 15:23:34 -08:00
ashr-tripcount.ll
…
avoid-i0.ll
…
backedge-on-min-max.ll
…
bbi-63564.ll
[SCEV] Track and invalidate ValuesAtScopes users
2021-11-30 18:21:14 +01:00
bec-cmp.ll
…
canonicalize-cmp.ll
[Test] Auto-generated checks for some IndVarSimplify tests
2020-09-08 11:15:40 +07:00
casted-argument.ll
…
checks_against_min_value.ll
[IndVars] Provide eliminateIVComparison with context
2021-03-19 12:28:22 +07:00
const_phi.ll
…
constant_result.ll
…
constant-fold.ll
…
crash.ll
…
D108043.ll
[IndVars] Drop check for the validity of rewrite
2021-08-30 12:06:58 +03:00
dangling-use.ll
…
deterministic-sign.ll
[IndVarSimplify] Reduce nondeterministic behaviour in visitIVCast.
2021-11-16 12:41:04 +00:00
divide-pointer.ll
…
dont-recompute.ll
Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)"
2020-04-03 20:15:04 +03:00
drop-exact.ll
…
elim-extend.ll
[IndVars] Invalidate SCEV when IR is changed in rewriteLoopExitValue.
2021-10-20 20:48:33 +01:00
eliminate-backedge.ll
[NFC] Add assert and test showing that revert of D109596 wasn't justified
2021-09-20 12:01:12 +07:00
eliminate-comparison.ll
[IndVars] Sharpen context in eliminateIVComparison
2021-03-22 11:55:57 +07:00
eliminate-exit-no-dl.ll
[SCEV] Stop blindly propagating flags from inbound geps to SCEV nodes
2021-10-01 16:30:44 -07:00
eliminate-exit.ll
[SCEV] By more careful when traversing phis in isImpliedViaMerge.
2021-05-07 19:52:29 +01:00
eliminate-max.ll
…
eliminate-overflow-modified.ll
[IndVarSimplify] Fix Modified status for removal of overflow intrinsics
2020-09-29 13:20:59 +02:00
eliminate-rem.ll
…
eliminate-sat.ll
…
exit_value_test2.ll
Special case common branch patterns in breakLoopBackedge (try 2)
2021-08-27 10:27:16 -07:00
exit_value_test3.ll
…
exit_value_tests.ll
[SimplifyCFG] MergeBlockIntoPredecessor() already knows how to preserve DomTree
2020-12-17 01:03:49 +03:00
exit-count-select.ll
[SCEV] Reenable umin_seq support and fix the computeSCEVAtScope()
2022-01-11 16:03:35 +03:00
finite-exit-comparisons.ll
[SCEV] Use constant range of RHS to prove NUW on narrow IV in trip count logic
2021-11-05 15:36:47 -07:00
floating-point-iv.ll
Revert "Revert "[IndVars] Replace PHIs if loop exits on 1st iteration""
2021-09-20 12:01:10 +07:00
full_widening.ll
[NFCI] SCEVExpander: emit intrinsics for integral {u,s}{min,max} SCEV expressions
2021-03-06 21:52:46 +03:00
indirectbr.ll
…
infer-poison-flags.ll
[Test] Auto-update for some tests
2020-10-14 17:03:33 +07:00
interesting-invoke-use.ll
OpaquePtr: Update more tests to use typed sret
2020-11-20 20:08:43 -05:00
invalidate-modified-lcssa-phi.ll
[IndVars] Invalidate SCEV when IR is changed in rewriteLoopExitValue.
2021-10-20 20:48:33 +01:00
iterationCount_zext_or_trunc.ll
…
iv-fold.ll
…
iv-sext.ll
…
iv-widen-elim-ext.ll
[IndVarSimplify] Extend previous special case for load use instruction to any narrow type loop variant to avoid extra trunc instruction
2020-03-05 16:27:59 -05:00
iv-zext.ll
…
lcssa-preservation.ll
[NFCI] SCEVExpander: emit intrinsics for integral {u,s}{min,max} SCEV expressions
2021-03-06 21:52:46 +03:00
lftr_disabled.ll
…
lftr-address-space-pointers.ll
[SCEVExpander] Drop poison generating flags when reusing instructions
2021-11-29 15:23:34 -08:00
lftr-dead-ivs.ll
[Test] Auto-update for some tests
2020-10-14 17:03:33 +07:00
lftr-multi-exit.ll
[NFCI] SCEVExpander: emit intrinsics for integral {u,s}{min,max} SCEV expressions
2021-03-06 21:52:46 +03:00
lftr-opaque-pointers.ll
[IndVars] Support opaque pointers in LFTR
2021-12-27 12:32:50 +01:00
lftr-pr20680.ll
…
lftr-pr31181.ll
[Test] Auto-update for some tests
2020-10-14 17:03:33 +07:00
lftr-pr41998.ll
…
lftr-promote.ll
…
lftr-reuse.ll
[SCEVExpander] Drop poison generating flags when reusing instructions
2021-11-29 15:23:34 -08:00
lftr.ll
[indvars] Fix lftr crash when preheader is terminated by switch
2021-11-23 09:58:46 -08:00
loop_evaluate7.ll
…
loop_evaluate8.ll
…
loop_evaluate9.ll
OpaquePtr: Bulk update tests to use typed byval
2020-11-20 14:00:46 -05:00
loop_evaluate11.ll
…
loop_evaluate_1.ll
[SimplifyCFG] Teach FoldTwoEntryPHINode() to preserve DomTree
2020-12-20 00:18:33 +03:00
loop_evaluate_2.ll
[test] Fixup tests with -analyze in llvm/test/Transforms
2021-09-04 16:45:51 -07:00
loop_evaluate_3.ll
…
loop_evaluate_4.ll
…
loop_evaluate_5.ll
…
loop_evaluate_6.ll
…
loop-predication.ll
[NFC][llvm] Inclusive language: reword uses of sanity test and check
2021-11-25 07:21:42 -05:00
lrev-existing-umin.ll
Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)"
2020-04-03 20:15:04 +03:00
masked-iv.ll
…
monotonic_checks.ll
Return "[IndVars] Remove monotonic checks with unknown exit count"
2020-10-28 18:51:40 +07:00
negative_ranges.ll
[SCEV] Generalize implication when signedness of FoundPred doesn't matter
2021-09-21 11:17:56 +07:00
no-iv-rewrite.ll
[NFCI] SCEVExpander: emit intrinsics for integral {u,s}{min,max} SCEV expressions
2021-03-06 21:52:46 +03:00
outer_phi.ll
[SCEV] Prove implication of predicates to their sign-flipped counterparts
2021-10-15 11:49:18 +07:00
phi-uses-value-multiple-times.ll
…
post-inc-range.ll
…
pr18223.ll
[Test] Auto-generated checks for some IndVarSimplify tests
2020-09-08 11:15:40 +07:00
pr22222.ll
…
pr24783.ll
[SCEVExpander] Drop poison generating flags when reusing instructions
2021-11-29 15:23:34 -08:00
pr24952.ll
…
pr25060.ll
…
pr25578.ll
…
pr26974.ll
…
pr28705.ll
Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)"
2020-04-03 20:15:04 +03:00
pr32045.ll
…
pr38674.ll
…
pr38855.ll
[FunctionAttrs] Rename functionattrs -> function-attrs
2020-07-28 09:09:13 -07:00
pr39673.ll
Revert "[SCEV] rewriteLoopExitValues(): even if have hard uses, still rewrite if cheap (PR44668)"
2020-04-03 20:15:04 +03:00
pr40454.ll
…
pr45835.ll
[ScalarEvolution] Fix pointer/int type handling converting select/phi to min/max.
2021-06-17 14:05:12 -07:00
predicated_ranges.ll
[IndVars] Use isLoopBackedgeGuardedByCond for last iteration check
2020-11-26 12:37:21 +07:00
preserve-memoryssa.ll
…
preserve-signed-wrap.ll
…
promote-iv-to-eliminate-casts.ll
[SCEVExpander] Drop poison generating flags when reusing instructions
2021-11-29 15:23:34 -08:00
replace-loop-exit-folds.ll
[NFCI] SCEVExpander: emit intrinsics for integral {u,s}{min,max} SCEV expressions
2021-03-06 21:52:46 +03:00
replace-sdiv-by-udiv.ll
…
replace-srem-by-urem.ll
…
rewrite-loop-exit-value.ll
…
rewrite-loop-exit-values-phi.ll
[IndVarSimplify] Fix Modified status when handling dead PHI nodes
2020-11-26 14:28:21 +01:00
rlev-add-me.ll
…
scev-expander-preserve-lcssa.ll
[test] Fix scev-expander-preserve-lcssa.ll under NPM
2020-12-10 09:46:08 -08:00
scevexpander-phi-base-case.ll
…
sentinel.ll
[NFCI] SCEVExpander: emit intrinsics for integral {u,s}{min,max} SCEV expressions
2021-03-06 21:52:46 +03:00
shared-exit-between-nested-loop.ll
[IndVarSimplify] Notify top most loop to drop cached exit counts
2020-11-19 15:37:54 +08:00
sharpen-range.ll
…
shift-range-checks.ll
[SCEV] Use lshr in implications
2022-01-25 13:25:19 +07:00
shrunk-constant.ll
[test] Fixup tests with -analyze in llvm/test/Transforms
2021-09-04 16:45:51 -07:00
signed-trip-count.ll
[IndVars] Don't widen pointers in WidenIV::getWideRecurrence
2021-07-11 17:04:50 -07:00
simplify-pointer-arithmetic.ll
[IndVars] Add test cases inspired by PR48965.
2021-02-25 15:54:18 +00:00
single-element-range.ll
…
sink-alloca.ll
…
sink-from-preheader.ll
…
sink-trapping.ll
…
strengthen-overflow.ll
autogen tests for ease of update
2021-10-14 13:04:22 -07:00
tripcount_compute.ll
…
tripcount_infinite.ll
[NFCI][SimplifyCFG] Mark all the SimplifyCFG tests that already don't invalidate DomTree as such
2020-12-17 01:03:49 +03:00
trivial-checks.ll
[Test] Add tests showing that IndVars cannot prove (X + 1 > X)
2020-09-17 22:37:43 +07:00
trivial-guard.ll
[SCEV] Add false->any implication
2021-03-19 11:29:48 +07:00
udiv-invariant-but-traps.ll
…
udiv.ll
…
ult-sub-to-eq.ll
…
use-range-metadata.ll
…
variable-stride-ivs-0.ll
…
widen-i32-i8ptr.ll
Reland [SCEV] Improve modelling for (null) pointer constants
2021-03-13 16:05:34 +03:00
zext-nuw.ll
[IndVars] Regenerate test checks (NFC)
2020-11-02 22:31:11 +01:00