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llvm-project/llvm/test/Transforms/InstSimplify
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Igor Gorban dd7a000a31
[InstSimplify] Fix crash when optimizing minmax with bitcast constant vectors (#168055) 
When simplifying min/max intrinsics with fixed-size vector constants,
InstructionSimplify attempts to optimize element-wise. However,
getAggregateElement() can return null for certain constant expressions
like bitcasts, leading to a null pointer dereference.

This patch adds a check to bail out of the optimization when
getAggregateElement() returns null, preventing the crash while
maintaining correct behavior for normal constant vectors.

Fixes crash with patterns like:
  call <2 x half> @llvm.minnum.v2f16(<2 x half> %x,
<2 x half> bitcast (<1 x i32> <i32 N> to <2 x half>))
2025-11-15 03:05:30 +08:00
..
ConstProp
[LLVM][ConstantFolding] Extend constantFoldVectorReduce to include scalable vectors. (#165437)
2025-10-31 11:14:08 +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
…
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
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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
[InstCombine] Propagate poison pow[i], [us]add, [us]sub and [us]mul (#146750)
2025-07-04 22:55:07 +01:00
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
[ConstantFold] Constant fold icmp of boolean scalable vectors (#142528)
2025-06-03 19:51:21 +08:00
const-fold-nvvm-add.ll
[NVPTX] Constant fold NVVM add/mul/div/fma (#152544)
2025-08-22 17:33:00 +01:00
const-fold-nvvm-div.ll
[NVPTX] Constant fold NVVM add/mul/div/fma (#152544)
2025-08-22 17:33:00 +01:00
const-fold-nvvm-f2i-d2i.ll
[NVPTX] Fix NaN + overflow semantics of f2ll/d2i (#159530)
2025-09-25 16:19:11 +01:00
const-fold-nvvm-f2ll-d2ll.ll
[NVPTX] Fix NaN + overflow semantics of f2ll/d2i (#159530)
2025-09-25 16:19:11 +01:00
const-fold-nvvm-fma.ll
[NVPTX] Constant fold NVVM add/mul/div/fma (#152544)
2025-08-22 17:33:00 +01:00
const-fold-nvvm-fmin-fmax.ll
[NVPTX] Constant fold NVVM fmin and fmax (#121966)
2025-01-16 14:38:51 +00:00
const-fold-nvvm-mul.ll
[NVPTX] Constant fold NVVM add/mul/div/fma (#152544)
2025-08-22 17:33:00 +01:00
const-fold-nvvm-unary-arithmetic.ll
[ConstantFolding] Fix incorrect nvvm_round folding (#151563)
2025-08-01 10:31:43 +01:00
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
disable_folding.ll
[ConstantFolding] Add flag to disable call folding (#140270)
2025-05-30 11:27:18 +01:00
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
…
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
[InstSimplify] Simplify fcmp implied by dominating fcmp (#161090)
2025-10-05 16:15:51 +08:00
exact-nsw-nuw.ll
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exp10.ll
[InstSimplify] Add poison propagation for trivially vectorizable intrinsics (#149243)
2025-07-19 19:37:21 -07:00
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
[ValueTracking] Bail out on x86_fp80 when computing fpclass with knownbits (#130477)
2025-03-09 21:10:35 +08:00
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
[IR] Handle fabs LHS in fcmpImpliesClass (#152913)
2025-08-10 22:55:04 +08:00
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
[InstSimplify] Fix crash when optimizing minmax with bitcast constant vectors (#168055)
2025-11-15 03:05:30 +08:00
fold-intrinsics.ll
[InstSimplify] Simplify extractvalue (umul_with_overflow(x, 1)). (#157307)
2025-09-07 18:32:40 +01:00
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
[ConstantFolding] Fold sqrt poison -> poison (#141821)
2025-06-11 13:27:14 +02:00
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
[ValueTracking] Teach isGuaranteedNotToBeUndefOrPoison about splats (#163570)
2025-10-20 11:20:09 +01:00
freeze.ll
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gc_relocate.ll
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gep.ll
Revert "[InstSimplify] Fold getelementptr inbounds null, idx -> null (#130742)" (#138168)
2025-05-01 14:21:59 -07:00
get_active_lane_mask.ll
[InstSimplify] Consider vscale_range for get active lane mask (#160073)
2025-09-24 11:35:15 +01:00
gv-alloca-cmp.ll
[IR] Don't allow values of opaque type (#137625)
2025-04-30 15:01:00 +02:00
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
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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
[InstSimplify] Fold {u,s}{min,max} x, poison -> poison (#138166)
2025-05-02 07:49:27 +08:00
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
[InstSimplify] Support non-inbounds GEP in ptrdiff fold (#162676)
2025-10-10 08:03:25 +00:00
ptrmask.ll
[InstSimplify] Support ptrtoaddr in ptrmask fold
2025-10-14 13:55:04 +02:00
ptrtoaddr.ll
[InstSimplify] Support ptrtoaddr in simplifyGEPInst() (#164262)
2025-10-21 09:27:07 +02:00
ptrtoint.ll
[IR] Require DataLayout for pointer cast elimination (#162279)
2025-10-07 17:19:48 +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
[InstCombine] Propagate poison pow[i], [us]add, [us]sub and [us]mul (#146750)
2025-07-04 22:55:07 +01:00
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
[Reland][ValueTracking] Improve Bitcast handling to match SDAG (#145223)
2025-08-04 14:51:03 +05:30
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] Handle assume(trunc x to i1) in ComputeKnownBits (#118406)
2025-04-10 19:29:28 +02:00
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
[ConstantFolding] Fold scalable shufflevector of poison/undef. (#143475)
2025-06-10 12:50:16 -07:00
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
[InstSimplify] Fold trig functions call of poison to poison (#148969)
2025-07-16 08:35:13 -07:00
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
umax-1.ll
[InstSimplify] Simplify 'x u>= 1' to true when x is known non-zero (#145204)
2025-06-22 13:32:19 +08:00
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
Reapply "[InstCombine] Match scalable splats in m_ImmConstant (#132522)" (#134262)
2025-04-03 18:03:16 +01:00
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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vp-reverse.ll
[InstSimplify] Add basic simplifications for vp.reverse (#144112)
2025-06-16 10:07:56 -07:00
vscale-inseltpoison.ll
[ConstantFold] Support scalable constant splats in ConstantFoldCastInstruction (#133207)
2025-04-03 16:24:56 +01:00
vscale.ll
[ConstantFold] Support scalable constant splats in ConstantFoldCastInstruction (#133207)
2025-04-03 16:24:56 +01:00
xor.ll
[LLVM][IR] Use splat syntax when printing Constant[Data]Vector. (#112548)
2024-11-06 11:53:33 +00:00