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d09f140cd1ebdfcabc333c45fe7e7fe59752bdf9
llvm/test/Transforms/InstSimplify
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Roman Lebedev d09f140cd1 [InstSimplify] Fix addo/subo undef folds (PR42209) 
Fix folds of addo and subo with an undef operand to be:

`@llvm.{u,s}{add,sub}.with.overflow` all fold to `{ undef, false }`,
 as per LLVM undef rules.
Same for commuted variants.

Based on the original version of the patch by @nikic.

Fixes [[ https://bugs.llvm.org/show_bug.cgi?id=42209 | PR42209 ]]

Differential Revision: https://reviews.llvm.org/D63065

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@363522 91177308-0d34-0410-b5e6-96231b3b80d8
2019-06-16 20:39:45 +00:00
..
2010-12-20-Boolean.ll
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2019-04-17 04:52:47 +00:00
2011-01-14-Thread.ll
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2019-04-17 04:52:47 +00:00
2011-02-01-Vector.ll
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2019-04-17 04:52:47 +00:00
2011-09-05-InsertExtractValue.ll
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2011-10-27-BinOpCrash.ll
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2019-04-17 04:52:47 +00:00
2011-11-23-MaskedBitsCrash.ll
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2019-04-17 04:52:47 +00:00
2013-04-19-ConstantFoldingCrash.ll
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add-mask.ll
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add.ll
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addsub.ll
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and-icmps-same-ops.ll
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and-or-icmp-zero.ll
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AndOrXor.ll
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assume.ll
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bitcast-vector-fold.ll
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bitreverse-fold.ll
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bitreverse.ll
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2019-04-17 04:52:47 +00:00
bswap.ll
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2019-04-17 04:52:47 +00:00
call.ll
[InstSimplify] Fix addo/subo undef folds (PR42209)
2019-06-16 20:39:45 +00:00
cast-unsigned-icmp-cmp-0.ll
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cast.ll
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cmp_of_min_max.ll
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compare.ll
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constantfold-add-nuw-allones-to-allones.ll
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constantfold-shl-nuw-C-to-C.ll
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dead-code-removal.ll
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div.ll
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2019-04-17 04:52:47 +00:00
exact-nsw-nuw.ll
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2019-04-17 04:52:47 +00:00
extract-element.ll
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2019-04-17 04:52:47 +00:00
fast-math.ll
[InstSimplify] Add unary fneg to fsub 0.0, (fneg X) ==> X transform
2019-05-17 16:47:00 +00:00
fcmp-select.ll
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2019-04-17 04:52:47 +00:00
fdiv.ll
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2019-04-17 04:52:47 +00:00
floating-point-arithmetic.ll
[InstSimplify] Teach fsub -0.0, (fneg X) ==> X about unary fneg
2019-05-20 13:13:35 +00:00
floating-point-compare.ll
[InstSimplify] enhance fcmp fold with never-nan operand
2019-06-09 13:48:59 +00:00
fold-builtin-fma.ll
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2019-04-17 04:52:47 +00:00
fold-intrinsics.ll
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2019-04-17 04:52:47 +00:00
fp-nan.ll
Revert llvm-svn: 360807
2019-05-15 20:48:50 +00:00
fp-undef.ll
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gep.ll
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icmp-abs-nabs.ll
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icmp-bool-constant.ll
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icmp-constant.ll
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icmp-ranges.ll
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implies.ll
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2019-04-17 04:52:47 +00:00
insertelement.ll
[InstSimplify] fold insertelement-of-extractelement
2019-05-24 00:13:58 +00:00
known-never-nan.ll
[NFC][InstSimplify] Precommit new unary fneg test
2019-05-17 18:34:35 +00:00
known-non-zero.ll
Revert "[ValueTracking] Improve isKnowNonZero for Ints"
2019-05-08 14:50:01 +00:00
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
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maxmin.ll
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mul.ll
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negate.ll
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noalias-ptr.ll
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or-icmps-same-ops.ll
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or.ll
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past-the-end.ll
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phi.ll
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pr28725.ll
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pr33957.ll
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ptr_diff.ll
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reassociate.ll
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rem.ll
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require-dominator.ll
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returned.ll
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round-intrinsics.ll
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saturating-add-sub.ll
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sdiv.ll
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select-and-cmp.ll
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select-implied.ll
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select-or-cmp.ll
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select.ll
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shift-128-kb.ll
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shift-knownbits.ll
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shift.ll
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shr-nop.ll
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shr-scalar-vector-consistency.ll
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shufflevector.ll
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signed-div-rem.ll
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simplify-nested-bitcast.ll
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srem.ll
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sub.ll
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undef.ll
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vec-cmp.ll
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vector_gep.ll
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vector_ptr_bitcast.ll
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