David Majnemer 312646b71e InstSimplify: Correct sdiv x / -1 ...

Determining the bounds of x/ -1 would start off with us dividing it by
INT_MIN.  Suffice to say, this would not work very well.

Instead, handle it upfront by checking for -1 and mapping it to the
range: [INT_MIN + 1, INT_MAX.  This means that the result of our
division can be any value other than INT_MIN.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@212981 91177308-0d34-0410-b5e6-96231b3b80d8

2014-07-14 20:38:45 +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

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apint-or.ll

Move optimization of some cases of (A & C1)|(B & C2) from instcombine to instsimplify. Patch by Rahul Jain, plus some last minute changes by me -- you can blame me for any bugs.

2014-06-19 03:51:46 +00:00

call-callconv.ll

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call.ll

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compare.ll

InstSimplify: Correct sdiv x / -1

2014-07-14 20:38:45 +00:00

dead-code-removal.ll

RecursivelyDeleteTriviallyDeadInstructions() could remove

2014-04-26 05:58:11 +00:00

exact-nsw-nuw.ll

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fast-math.ll

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fdiv.ll

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floating-point-arithmetic.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

Update Transforms tests to use CHECK-LABEL for easier debugging. No functionality change.

2013-07-14 01:42:54 +00:00

reassociate.ll

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rem.ll

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undef.ll

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vector_gep.ll

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