Veera bc35510725 [InstSimplify] Fold X * C >= X to true (#129352) ...

Proof: https://alive2.llvm.org/ce/z/T_ocLy

Discovered in: https://github.com/rust-lang/rust/issues/114386

This PR folds `X * C >= X` to `true` when `C` is known to be non-zero
and `mul` is `nuw`.

Folds for other math operators exist already:
https://llvm-ir.godbolt.org/z/GKcYEf5Kb

2025-03-01 12:02:57 -05:00

..

ConstProp

[LLVM] Port a few InstCombine tests to use splat instead of shufflevector.

2025-02-26 11:11:02 +00:00

X86

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2010-12-20-Boolean.ll

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2011-01-14-Thread.ll

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2011-02-01-Vector.ll

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2011-09-05-InsertExtractValue.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

2011-10-27-BinOpCrash.ll

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2011-11-23-MaskedBitsCrash.ll

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2013-04-19-ConstantFoldingCrash.ll

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abs_intrinsic.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

add_vp.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

add-mask.ll

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add.ll

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addsub.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

and-icmps-same-ops.ll

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and-or-icmp-ctpop.ll

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and-or-icmp-min-max.ll

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and-or-icmp-nullptr.ll

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and-or-icmp-zero.ll

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and-or-implied-cond.ll

[InstSimplify] Fix simplifyAndOrWithICmpEq with undef refinement (#98898)

2024-07-16 11:40:04 +02:00

and.ll

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AndOrXor.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

assume_icmp.ll

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assume-fcmp-constant-implies-class.ll

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assume-non-zero.ll

[ValueTracking] Precommit test for #118406

2025-02-04 22:53:33 +01:00

bitcast-vector-fold.ll

[LLVM][IR] Add support for vector ConstantInt/FP to ConstandFolding:FoldBitCast. (#117163)

2024-12-10 15:42:05 +00:00

bitreverse-fold.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

bitreverse.ll

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bswap.ll

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call.ll

[ValueTracking] Take into account whether zero is poison when computing CR for ct{t,l}z (#122548)

2025-01-11 15:11:11 -06:00

canonicalize.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

cast-unsigned-icmp-cmp-0.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

cast.ll

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cmp_ext.ll

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cmp_of_min_max.ll

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cmp-alloca-offsets.ll

[InstSimplify] Correctly handle comparison with zero-size allocs (#115728)

2024-11-14 11:55:19 +01:00

cmp-vec-fast-path.ll

[LLVM][IR] Use splat syntax when printing ConstantExpr based splats. (#116856)

2024-11-21 11:21:12 +00:00

compare.ll

[ValueTracking] Precommit test for #118406

2025-02-04 22:53:33 +01:00

const-fold-nvvm-f2i-d2i.ll

[NVPTX] Constant-folding for f2i, d2ui, f2ll etc. (#118965)

2025-01-07 13:17:36 +00:00

const-fold-nvvm-f2ll-d2ll.ll

[NVPTX] Constant-folding for f2i, d2ui, f2ll etc. (#118965)

2025-01-07 13:17:36 +00:00

const-fold-nvvm-fmin-fmax.ll

[NVPTX] Constant fold NVVM fmin and fmax (#121966)

2025-01-16 14:38:51 +00:00

constant-fold-fp-denormal.ll

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constant-fold-inttoptr-add.ll

[Value] Look through inttoptr (add ..) in accumulateConstantOffsets (#124981)

2025-01-30 20:58:38 +00:00

constantfold-add-nuw-allones-to-allones.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

constantfold-shl-nuw-C-to-C.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

constfold-constrained.ll

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ctpop-pow2.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

dead-code-removal.ll

[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)

2024-11-15 14:19:50 +00:00

distribute.ll

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div-by-0-guard-before-smul_ov-not.ll

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div-by-0-guard-before-smul_ov.ll

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div-by-0-guard-before-umul_ov-not.ll

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div-by-0-guard-before-umul_ov.ll

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div.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

domcondition.ll

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exact-nsw-nuw.ll

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exp10.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

extract-element.ll

[LLVM][IR] Teach extractelement folds about constant ConstantInt/FP. (#116793)

2024-11-21 12:39:53 +00:00

extract-vector.ll

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fast-math-strictfp.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

fast-math.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

fcmp-select.ll

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fcmp.ll

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fdiv-strictfp.ll

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fdiv.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

floating-point-arithmetic-strictfp.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

floating-point-arithmetic.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

floating-point-compare.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

fminmax-folds.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

fold-intrinsics.ll

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fold-vscale.ll

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fp-nan.ll

[LLVM][IR] Use splat syntax when printing ConstantExpr based splats. (#116856)

2024-11-21 11:21:12 +00:00

fp-undef-poison-strictfp.ll

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fp-undef-poison.ll

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fptoi-range.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

fptoi-sat.ll

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freeze-noundef.ll

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freeze.ll

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frexp.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

gc_relocate.ll

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gep.ll

[LLVM][IR] When evaluating GEP offsets don't assume ConstantInt is a scalar. (#117162)

2024-12-04 12:45:30 +00:00

gv-alloca-cmp.ll

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icmp-abs-nabs.ll

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icmp-bool-constant.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

icmp-constant.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

icmp-monotonic.ll

[InstSimplify] Fold X * C >= X to true (#129352)

2025-03-01 12:02:57 -05:00

icmp-not-bool-constant.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

icmp-ranges.ll

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icmp.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

implies.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

insert-vector.ll

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insertelement.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

insertvalue.ll

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invalid-load-operand-infinite-loop.ll

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invariant.group-load.ll

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is_fpclass.ll

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known-never-infinity.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

known-never-nan.ll

[InstSimplify] fold uno/ord comparison if fpclass is always NaN (#97763)

2024-07-09 14:44:48 -07:00

known-non-zero-opaque-ptrs.ll

[ValueTracking] Handle nonnull attributes at callsite (#124908)

2025-01-29 23:14:36 +08:00

known-non-zero.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

ldexp.ll

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load-relative-32.ll

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load-relative.ll

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load.ll

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log2-pow2-intrinsic.ll

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log10-pow10-intrinsic.ll

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log-exp-intrinsic.ll

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logic-of-fcmps.ll

[InstSimplify] Generalize simplifyAndOrOfFCmps to handle fabs (#116590)

2024-11-19 20:10:40 +08:00

maxmin_intrinsics.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

maxmin.ll

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mul.ll

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named-vector-shuffle-reverse.ll

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negate.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

noalias-ptr.ll

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null-ptr-is-valid-attribute.ll

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null-ptr-is-valid.ll

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opaque-ptr.ll

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or-icmps-same-ops.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

or.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

past-the-end.ll

[ConstantFolding] Infer getelementptr nuw flag (#119214)

2024-12-09 16:44:05 +01:00

phi-cse.ll

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phi.ll

[InstSimplify] Fix incorrect poison propagation when folding phi (#96631)

2024-11-07 14:09:45 +01:00

po2-shift-add-and-to-zero.ll

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pr28725.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

pr33957.ll

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pr49495.ll

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pr87042.ll

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pr122582.ll

[ConstantFolding] Add ilogb in isMathLibCallNoop (#122582)

2025-01-20 12:19:07 -05:00

ptr_diff.ll

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ptrmask.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

ptrtoint.ll

[InstSimplify] Fold ptrtoint(ptradd(P,X-ptrtoint(P))) to X (#98649)

2024-07-15 09:26:03 +02:00

reassociate.ll

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redundant-null-check-in-uadd_with_overflow-of-nonnull-ptr.ll

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rem.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

require-dominator.ll

[llvm] Remove br i1 undef from some regression tests [NFC] (#116161)

2024-11-15 14:19:50 +00:00

result-of-add-of-negative-is-non-zero-and-no-underflow.ll

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result-of-usub-by-nonzero-is-non-zero-and-no-overflow.ll

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result-of-usub-is-non-zero-and-no-overflow.ll

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returned.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

round-intrinsics.ll

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saturating-add-sub.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

sdiv.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

select_or_and.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

select-abs.ll

ValueTracking: handle more ops in isNotCrossLaneOperation (#112183)

2024-10-14 14:08:12 +01:00

select-equivalence-fp.ll

[InstSimplify] Treat float binop with identity as refining (#120098)

2024-12-17 10:58:52 +01:00

select-icmp.ll

[InstSimplify] Add additional checks when substituting pointers (#125385)

2025-02-02 19:04:23 +08:00

select-implied.ll

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select-inseltpoison.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

select-logical.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

select-maxmin.ll

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select.ll

[InstSimplify] Handle trunc to i1 in Select with bit test folds. (#122944)

2025-02-01 08:48:32 +01:00

shift-128-kb.ll

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shift-knownbits.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

shift.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

shr-nop.ll

[ValueTracking] Precommit test for #118406

2025-02-04 22:53:33 +01:00

shr-scalar-vector-consistency.ll

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shufflevector-inseltpoison.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

shufflevector.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

signed-div-rem.ll

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simplify-nested-bitcast.ll

[ConstantFolding] Infer getelementptr nuw flag (#119214)

2024-12-09 16:44:05 +01:00

sincos.ll

Reland "[InstSimplify] Add basic constant folding for llvm.sincos" (#119192)

2024-12-09 11:16:14 +00:00

smul_fix.ll

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srem.ll

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strictfp-fadd.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

strictfp-fsub.ll

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strictfp-sqrt-nonneg.ll

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sub.ll

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subnuw-with-xor.ll

[InstSimpify] Simplifying (xor (sub C_Mask, X), C_Mask) -> X (#122552)

2025-01-11 15:10:42 -06:00

undef.ll

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uscmp.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

vec-cmp.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

vec-icmp-of-cast.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

vector_gep.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00

vector_ptr_bitcast.ll

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vector-inseltextelt.ll

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vscale-inseltpoison.ll

[LLVM][IR] Use splat syntax when printing ConstantExpr based splats. (#116856)

2024-11-21 11:21:12 +00:00

vscale.ll

[LLVM][IR] Use splat syntax when printing ConstantExpr based splats. (#116856)

2024-11-21 11:21:12 +00:00

xor.ll

[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)

2024-11-06 11:53:33 +00:00