caio/clang-p2996
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
a033bf242f7dccd5546292bf6e554cf2de3ccd58
clang-p2996/llvm/test/Transforms/IndVarSimplify
History
Eli Friedman 60712732ea [IndVars] Teach replaceCongruentIVs to avoid scrambling induction variables 
replaceCongruentIVs analysis is based on ScalarEvolution; this makes
comparing different PHIs and performing the replacement straightforward.
However, it can have some side-effects: it isn't aware whether an
induction variable is in canonical form, so it can perform replacements
which obscure the meaning of the IR.

In test22 in widen-loop-comp.ll, the resulting loop can't be analyzed by
ScalarEvolution at all.

My attempted solution is to restrict the transform: don't try to replace
induction variables using PHI nodes that don't represent simple
induction variables.

I'm not sure if this is the best solution; suggestions welcome.

Differential Revision: https://reviews.llvm.org/D121950
2023-07-12 12:27:39 -07:00
..
AArch64
[IndVars] Teach replaceCongruentIVs to avoid scrambling induction variables
2023-07-12 12:27:39 -07:00
AMDGPU
[NFC][Py Reformat] Reformat lit.local.cfg python files in llvm
2023-05-17 17:03:15 +02:00
ARM
[NFC][Py Reformat] Reformat lit.local.cfg python files in llvm
2023-05-17 17:03:15 +02:00
NVPTX
[NFC][Py Reformat] Reformat lit.local.cfg python files in llvm
2023-05-17 17:03:15 +02:00
X86
[NFC][Py Reformat] Reformat lit.local.cfg python files in llvm
2023-05-17 17:03:15 +02:00
2002-09-09-PointerIndVar.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2003-04-16-ExprAnalysis.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2003-09-23-NotAtTop.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2003-12-10-RemoveInstrCrash.ll
…
2003-12-15-Crash.ll
…
2004-03-10-PHIInsertionBug.ll
…
2004-04-05-InvokeCastCrash.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2004-04-07-ScalarEvolutionCrash.ll
…
2005-02-11-InvokeCrash.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2005-02-17-TruncateExprCrash.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2005-02-26-ExitValueCompute.ll
…
2005-06-15-InstMoveCrash.ll
…
2005-11-18-Crash.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2006-03-31-NegativeStride.ll
…
2006-06-16-Indvar-LCSSA-Crash.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2006-09-20-LFTR-Crash.ll
…
2006-12-10-BitCast.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2007-01-06-TripCount.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2007-06-06-DeleteDanglesPtr.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2007-11-23-BitcastCrash.ll
…
2008-06-15-SCEVExpanderBug.ll
…
2008-09-02-IVType.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2008-10-03-CouldNotCompute.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2008-11-25-APFloatAssert.ll
…
2009-04-22-IndvarCrash.ll
…
2009-04-27-Floating.ll
…
2009-05-24-useafterfree.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2011-09-10-widen-nsw.ll
…
2011-09-19-vectoriv.ll
…
2011-09-27-hoistsext.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2011-10-27-lftrnull.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
2011-11-01-lftrptr.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2011-11-17-selfphi.ll
…
2012-10-19-congruent-constant.ll
…
2014-06-21-congruent-constant.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
2020-12-15-trunc-bug-expensive-range-inference.ll
…
ada-loops.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
addrec_no_exec_on_every_iteration.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
ashr-expansion.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
ashr-tripcount.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
avoid-i0.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
backedge-on-min-max.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
bbi-63564.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
bec-cmp.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
canonicalize-cmp.ll
[Test] Add some more IndVars canonicalization tests
2023-04-11 12:37:10 +07:00
casted-argument.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
checks_against_min_value.ll
…
const_phi.ll
…
constant_result.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
constant-fold.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
crash.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
cycled_phis.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
D108043.ll
[SCEVExpander] Produce canonical constant GEP
2022-12-13 15:08:28 +01:00
dangling-use.ll
[Transforms] Fix i8 alignment in datalayout of lit test
2023-01-20 15:52:07 +01:00
deterministic-sign.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
divide-pointer.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
dont-recompute.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
drop-exact.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
elim-extend.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
eliminate-backedge.ll
[IndVars] Support AND/OR in optimizeLoopExitWithUnknownExitCount
2023-01-11 11:36:02 +07:00
eliminate-comparison.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
eliminate-exit-no-dl.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
eliminate-exit.ll
…
eliminate-max.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
eliminate-overflow-modified.ll
…
eliminate-rem.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
eliminate-sat.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
exit_value_test2.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
exit_value_test3.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
exit_value_tests.ll
…
exit-count-select.ll
…
finite-exit-comparisons.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
floating-point-iv.ll
…
floating-point-small-iv.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
full_widening.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
indirectbr.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
infer-poison-flags.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
interesting-invoke-use.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
invalidate-modified-lcssa-phi.ll
…
iterationCount_zext_or_trunc.ll
…
iv-fold.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
iv-poison.ll
Do not short circuit hoistIVInc when recomputation of poison flags is needed.
2023-01-10 23:03:07 -07:00
iv-sext.ll
[Test] Regenerate checks in some tests using auto-update script
2023-04-12 13:42:31 +07:00
iv-widen-elim-ext.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
iv-zext.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
lcssa-preservation.ll
[LCSSA] Compute SCEV of LCSSA phi if original instruction had SCEV
2023-06-26 14:43:31 +02:00
lftr_disabled.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
lftr-address-space-pointers.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
lftr-dead-ivs.ll
[SCEVExpander] Produce canonical constant GEP
2022-12-13 15:08:28 +01:00
lftr-multi-exit.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
lftr-pr20680.ll
[SCEV] Try simplifying phi before createNodeFromSelectLikePHI()
2023-04-27 15:07:19 +02:00
lftr-pr31181.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
lftr-pr41998.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
lftr-promote.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
lftr-reuse.ll
[SCEV] Do not strengthen nuw/nsw flags during get[Zero,Sign]ExtendedExpr.
2023-03-15 20:57:34 +00:00
lftr.ll
[IndVarSimplify] Convert last test to opaque pointers (NFC)
2022-12-13 15:20:35 +01:00
loop_evaluate7.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
loop_evaluate8.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
loop_evaluate9.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
loop_evaluate11.ll
…
loop_evaluate_1.ll
…
loop_evaluate_2.ll
…
loop_evaluate_3.ll
…
loop_evaluate_4.ll
…
loop_evaluate_5.ll
…
loop_evaluate_6.ll
…
loop-predication.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
lrev-existing-umin.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
masked-iv.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
monotonic_checks.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
negative_ranges.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
no-iv-rewrite.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
opaque-ptr.ll
[llvm] Remove explicit -opaque-pointers flag from tests (NFC)
2023-07-12 14:35:55 +02:00
outer_phi.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
phi-select.ll
…
phi-uses-value-multiple-times.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
post-inc-range.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
pr18223.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
pr22222.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
pr24783.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
pr24952.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
pr25060.ll
…
pr25578.ll
…
pr26974.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
pr28705.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
pr30806-phi-scev.ll
[LV][IndVars] Move test to correct directory and regenerate (NFC)
2023-04-21 18:03:41 +02:00
pr32045.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
pr38674.ll
…
pr38855.ll
…
pr39673.ll
…
pr40454.ll
…
pr45835.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
pr50506.ll
…
pr55689.ll
…
pr55925.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
pr56242.ll
…
pr57247.ll
…
pr58702-invalidate-scev-when-replacing-congruent-phis.ll
…
pr59633.ll
[IndVars] Add check of loop invariant for indirect use
2023-06-03 22:29:09 +08:00
pr60944.ll
[SCEV] Fix finite loop non-strict predicate simplification (PR60944)
2023-03-14 10:55:02 +01:00
pr62992.ll
[IndVars] Check expansion safety in makeIVComparisonInvariant() (PR62992)
2023-05-31 11:21:35 +02:00
predicated_ranges.ll
[SCEV] Support sub in and negative constants willNotOverflow
2023-04-25 16:40:37 +07:00
preserve-memoryssa.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
preserve-signed-wrap.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
promote-iv-to-eliminate-casts.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
ptrtoint-global-cmp.ll
[SCEV] Use object size for globals to sharpen ranges.
2023-04-29 21:33:30 +01:00
range-iter-threshold.ll
[SCEV] Fix finite loop non-strict predicate simplification (PR60944)
2023-03-14 10:55:02 +01:00
replace-loop-exit-folds.ll
…
replace-sdiv-by-udiv.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
replace-srem-by-urem.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
rewrite-loop-exit-value.ll
[SCEV] Fix finite loop non-strict predicate simplification (PR60944)
2023-03-14 10:55:02 +01:00
rewrite-loop-exit-values-phi.ll
[NFC] Fixup checkline confusion
2022-12-14 17:53:06 +03:00
rlev-add-me.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
scev-expander-preserve-lcssa.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
scev-invalidation.ll
…
scevexpander-phi-base-case.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
sentinel.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
shared-exit-between-nested-loop.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
sharpen-range.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
shift-range-checks.ll
[ValueTracking] Directly use KnownBits shift functions
2023-06-01 09:46:16 +02:00
shrunk-constant.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
signed-trip-count.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
simplify-pointer-arithmetic.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
single-element-range.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
sink-alloca.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
sink-from-preheader.ll
…
sink-trapping.ll
…
strengthen-overflow.ll
[Test] Add test showing that we can infer nsw
2023-04-18 13:17:45 +07:00
tripcount_compute.ll
…
tripcount_infinite.ll
…
trivial-checks.ll
…
trivial-guard.ll
…
turn-to-invariant.ll
[Test] Add tests where we can replace IV check with invariant check basing on predicated backedge cond
2023-02-10 13:57:39 +07:00
udiv-invariant-but-traps.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
udiv.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
ult-sub-to-eq.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
use-range-metadata.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
variable-stride-ivs-0.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00
widen-i32-i8ptr.ll
[IndVarSimplify] Convert more tests to opaque pointers (NFC)
2022-12-14 15:37:58 +01:00
zext-nuw.ll
[IndVarSimplify] Convert tests to opaque pointers (NFC)
2022-12-13 14:50:13 +01:00