David Majnemer 49c14f54b2 InstSimplify: Exact shifts of X by Y are X if X has the lsb set ...

Exact shifts may not shift out any non-zero bits. Use computeKnownBits
to determine when this occurs and just return the left hand side.

This fixes PR21477.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@221325 91177308-0d34-0410-b5e6-96231b3b80d8

2014-11-05 00:59:59 +00:00

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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

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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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AndOrXor.ll

InstSimplify: Simplify trivial and/or of icmps

2014-09-15 08:15:28 +00:00

apint-or.ll

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assume.ll

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call-callconv.ll

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call.ll

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compare.ll

Introduce a 'nonnull' metadata on Load instructions.

2014-10-20 22:40:55 +00:00

dead-code-removal.ll

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exact-nsw-nuw.ll

InstCombine, InstSimplify: (%X /s C1) /s C2 isn't always 0 when C1 * C2 overflow

2014-10-11 10:20:01 +00:00

fast-math.ll

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fdiv.ll

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floating-point-arithmetic.ll

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fold-builtin-fma.ll

Revert "r216914 - Revert: [APFloat] Fixed a bug in method 'fusedMultiplyAdd'"

2014-10-14 19:23:07 +00:00

gep.ll

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maxmin.ll

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past-the-end.ll

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phi.ll

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ptr_diff.ll

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reassociate.ll

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rem.ll

InstSimplify: Don't allow (x srem y) urem y -> x srem y

2014-09-17 04:16:35 +00:00

shr-nop.ll

InstSimplify: Exact shifts of X by Y are X if X has the lsb set

2014-11-05 00:59:59 +00:00

undef.ll

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vector_gep.ll

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vector_ptr_bitcast.ll

[InstSimplify] Support constant folding to vector of pointers

2014-10-22 12:18:48 +00:00