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llvm-project/llvm/test/Transforms/IndVarSimplify
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Anshil Gandhi 4f551b55ae
[IndVarSimplify] Add safety check for getTruncateExpr in genLoopLimit (#172234) 
getTruncateExpr may not always return a SCEVAddRecExpr when truncating
loop bounds. Add a check to verify the result type before casting, and
bail out of the transformation if the cast would be invalid.

This prevents potential crashes from invalid casts when dealing with
complex loop bounds.

Co-authored by Michael Rowan

Resolves [#153090](https://github.com/llvm/llvm-project/issues/153090)
2026-02-11 10:08:41 +00:00
..
AArch64
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
AMDGPU
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
ARM
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
NVPTX
…
X86
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
2002-09-09-PointerIndVar.ll
…
2003-04-16-ExprAnalysis.ll
…
2003-09-23-NotAtTop.ll
…
2003-12-10-RemoveInstrCrash.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
2003-12-15-Crash.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
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
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
2006-03-31-NegativeStride.ll
…
2006-06-16-Indvar-LCSSA-Crash.ll
…
2006-09-20-LFTR-Crash.ll
…
2006-12-10-BitCast.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
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
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
2011-09-10-widen-nsw.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
2011-09-19-vectoriv.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
2011-09-27-hoistsext.ll
…
2011-10-27-lftrnull.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
2011-11-01-lftrptr.ll
…
2011-11-17-selfphi.ll
…
2012-10-19-congruent-constant.ll
…
2014-06-21-congruent-constant.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
2020-12-15-trunc-bug-expensive-range-inference.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
ada-loops.ll
[IR] Convert from nocapture to captures(none) (#123181)
2025-01-29 16:56:47 +01:00
add-nsw-zext-fold.ll
[SCEV] Add more tests with zext(add C, %var)<nsw>.
2025-06-03 22:03:20 +01:00
addrec_no_exec_on_every_iteration.ll
IR: Promote "denormal-fp-math" to a first class attribute (#174293)
2026-02-05 13:31:26 +00:00
ashr-expansion.ll
…
ashr-tripcount.ll
…
avoid-i0.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
backedge-on-min-max.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
bbi-63564.ll
…
bec-cmp.ll
…
canonicalize-cmp.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
casted-argument.ll
…
casted-trunc.ll
…
checks_against_min_value.ll
…
const_phi.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
constant_result.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
constant-fold.ll
…
crash.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
cycled_phis.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
D108043.ll
…
dangling-use.ll
…
debugloc-rem-subst.ll
[SCEV] Regenerate a subset of auto updated tests
2025-12-02 12:16:53 -08:00
deterministic-sign.ll
…
divide-pointer.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
dont-recompute.ll
[SCEV] Regenerate a subset of auto updated tests
2025-12-02 12:16:53 -08:00
drop-exact.ll
…
elim-extend.ll
…
eliminate-backedge.ll
[IR] Reland Optimize PHINode::removeIncomingValue() and PHINode::removeIncomingValueIf() to use the swapping strategy. (#174274)
2026-01-04 09:24:53 +08:00
eliminate-comparison.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
eliminate-exit-no-dl.ll
[ConstantFolding] Infer getelementptr nuw flag (#119214)
2024-12-09 16:44:05 +01:00
eliminate-exit.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
eliminate-max.ll
…
eliminate-overflow-modified.ll
…
eliminate-rem.ll
…
eliminate-sat.ll
[SCEV] Regenerate a subset of auto updated tests
2025-12-02 12:16:53 -08:00
exit_value_test2.ll
[IR] Remove size argument from lifetime intrinsics (#150248)
2025-08-08 11:09:34 +02:00
exit_value_test3.ll
[IndVarsSimplify] sinkUnusedInvariants is skipping instructions while sinking. (#135205)
2025-04-17 19:21:18 -05:00
exit_value_tests.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
exit-count-select.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
finite-exit-comparisons.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
floating-point-iv.ll
[IndVarSimplify] Add regression test for recently-added refactor (NFC)
2025-11-28 11:59:46 +01:00
floating-point-small-iv.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
full_widening.ll
…
guards.ll
[SCEV] Move a test into IndVars (#147360)
2025-07-09 13:32:30 +01:00
hoist-wide-inc-for-narrow-use-recompute-flags.ll
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implied-via-addition.ll
[IndVarSimplify] Set samesign when converting signed comparison to unsigned comparison in eliminateIVComparison. (#138215)
2025-05-02 08:17:45 -07:00
indirectbr.ll
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infer-poison-flags.ll
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infer-via-ranges.ll
SCEV: re-org a test, regen via UTC (#126237)
2025-02-07 13:19:34 +00:00
interesting-invoke-use.ll
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invalidate-modified-lcssa-phi.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
iterationCount_zext_or_trunc.ll
…
iv-cmp-sext.ll
[IndVars] Teach widenLoopCompare to use sext if narrow IV is positive and other operand is already sext. (#142703)
2025-06-10 12:52:39 -07:00
iv-ext-samesign.ll
[Reland][SCEV] teach isImpliedViaOperations about samesign (#133711)
2025-04-02 18:45:33 +08:00
iv-fold.ll
…
iv-poison.ll
…
iv-sext.ll
[IndVarSimplify] Set samesign when converting signed comparison to unsigned comparison in eliminateIVComparison. (#138215)
2025-05-02 08:17:45 -07:00
iv-widen-elim-ext.ll
…
iv-zext.ll
…
lcssa-preservation.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
lftr_disabled.ll
…
lftr-address-space-pointers.ll
…
lftr-dead-ivs.ll
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lftr-multi-exit.ll
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lftr-pr20680.ll
…
lftr-pr31181.ll
…
lftr-pr41998.ll
…
lftr-promote.ll
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lftr-reuse.ll
…
lftr.ll
[IndVarSimplify] Set samesign when converting signed comparison to unsigned comparison in eliminateIVComparison. (#138215)
2025-05-02 08:17:45 -07:00
loop_evaluate7.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
loop_evaluate8.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
loop_evaluate9.ll
…
loop_evaluate11.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
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-guard-order.ll
[SCEV] Improve handling of divisibility information from loop guards. (#163021)
2025-11-02 14:16:24 +00:00
loop-predication.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
lrev-existing-umin.ll
…
masked-iv.ll
…
monotonic_checks.ll
[SCEV] Regenerate a subset of auto updated tests
2025-12-02 12:16:53 -08:00
negative_ranges.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
no-iv-rewrite.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
opaque-ptr.ll
…
outer_phi.ll
…
phi-select.ll
…
phi-uses-value-multiple-times.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
pointer-loop-guards.ll
[SCEV] Rewrite A - B = UMin(1, A - B) lazily for A != B loop guards. (#163787)
2025-10-18 13:32:40 +01:00
post-inc-range.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
pr18223.ll
…
pr22222.ll
…
pr24783.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
pr24952.ll
…
pr25060.ll
…
pr25578.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
pr26974.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
pr28705.ll
…
pr30806-phi-scev.ll
…
pr32045.ll
…
pr38674.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
pr38855.ll
…
pr39673.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
pr40454.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
pr45835.ll
…
pr50506.ll
…
pr55689.ll
…
pr55925.ll
…
pr56242.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
pr57247.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
pr58702-invalidate-scev-when-replacing-congruent-phis.ll
…
pr59633.ll
…
pr60944.ll
…
pr62992.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
pr63763.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
pr64891.ll
…
pr66066.ll
…
pr66986.ll
[IndVarSimplify] Set samesign when converting signed comparison to unsigned comparison in eliminateIVComparison. (#138215)
2025-05-02 08:17:45 -07:00
pr68260.ll
…
pr79861.ll
…
pr102597.ll
[IndVarSimplify] Set samesign when converting signed comparison to unsigned comparison in eliminateIVComparison. (#138215)
2025-05-02 08:17:45 -07:00
pr106239.ll
…
pr116483.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
pr117133.ll
[SCEV] Do not allow refinement in the rewriting of BEValue (#117152)
2024-12-01 20:11:09 +08:00
pr126012.ll
[IndVarSimplify] Set samesign when converting signed comparison to unsigned comparison in eliminateIVComparison. (#138215)
2025-05-02 08:17:45 -07:00
pr126409.ll
[Reland][SCEV] teach isImpliedViaOperations about samesign (#133711)
2025-04-02 18:45:33 +08:00
pr135182.ll
[IndVarSimplify] Handle the case where both operands are the same when widening IV (#135207)
2025-04-11 09:03:06 +08:00
predicated_ranges.ll
…
preserve-memoryssa.ll
…
preserve-nsw-during-expansion.ll
[IR] Convert from nocapture to captures(none) (#123181)
2025-01-29 16:56:47 +01:00
preserve-signed-wrap.ll
…
preserving-debugloc-rem-div.ll
…
preserving-debugloc-sat-overflow.ll
…
preserving-debugloc.ll
[IndVarSimplify] Set samesign when converting signed comparison to unsigned comparison in eliminateIVComparison. (#138215)
2025-05-02 08:17:45 -07:00
promote-iv-to-eliminate-casts.ll
…
ptrtoint-global-cmp.ll
…
range-iter-threshold.ll
…
replace-loop-exit-folds.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
replace-sdiv-by-udiv.ll
…
replace-srem-by-urem.ll
…
rewrite-loop-exit-value.ll
[InstCombine] Fold X udiv Y to X lshr cttz(Y) if Y is a power of 2 (#121386)
2025-01-11 13:56:13 +08:00
rewrite-loop-exit-values-phi.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
rlev-add-me.ll
…
scev-expander-preserve-lcssa.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
scev-invalidation.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
scev-update-loop-opt.ll
[IndVarSimplify] Add safety check for getTruncateExpr in genLoopLimit (#172234)
2026-02-11 10:08:41 +00:00
scevexpander-phi-base-case.ll
…
sentinel.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
shared-exit-between-nested-loop.ll
…
sharpen-range.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
shift-range-checks.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
shrunk-constant.ll
…
signed-trip-count.ll
…
simplify-icmp-operands-order.ll
[SCEV] Better preserve wrapping info in SimplifyICmpOperands for UGE. (#144404)
2025-06-17 15:30:08 +01:00
simplify-pointer-arithmetic.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
single-element-range.ll
[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)
2024-11-15 14:19:50 +00:00
sink-alloca.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
sink-from-preheader.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
sink-trapping.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00
skip-predication-convergence.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
skip-predication-nested-convergence.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
strengthen-overflow.ll
…
trip-count-expansion-loop-guard-preserve-nsw.ll
…
tripcount_compute.ll
…
tripcount_infinite.ll
…
trivial-checks.ll
…
trivial-guard.ll
…
turn-to-invariant.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
udiv-invariant-but-traps.ll
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udiv.ll
…
ult-sub-to-eq.ll
…
unreachable-exit.ll
[IndVarSimplify] Allow predicateLoopExit on some loops with thread-local writes (#155901)
2025-10-16 09:18:00 -07:00
use-range-metadata.ll
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variable-stride-ivs-0.ll
…
widen-i32-i8ptr.ll
…
widen-nonnegative-countdown.ll
[IndVars] Strengthen inference of samesign flags (#170363)
2025-12-03 16:16:22 +00:00
widen-nonnegative.ll
…
zext-nuw.ll
Revert "[LICM] Sink unused l-invariant loads in preheader. #157559"
2025-11-14 14:51:33 +01:00