3.6.1 patch nomination: r231984 & r232176 (illegal type support fixes)

[Paweł Bylica]

Any opinion about that?

On Wed, Mar 18, 2015 at 1:56 PM Paweł Bylica <chfast at gmail.com> wrote:

> --------------------------------------------------------------------
> r231984:
>
> URL: http://llvm.org/viewvc/llvm-project?rev=231984&view=rev
> Log:
> Handle big index in getelementptr instruction
>
> CodeGen incorrectly ignores (assert from APInt) constant index bigger
> than 2^64 in getelementptr instruction. This is a test and fix for that.
>
> Patch by Paweł Bylica!
>
> Reviewed By: rnk
>
> Subscribers: majnemer, rnk, mcrosier, resistor, llvm-commits
>
> Differential Revision: http://reviews.llvm.org/D8219
>
> Added:
>     llvm/trunk/test/CodeGen/X86/getelementptr.ll
> Modified:
>     llvm/trunk/lib/CodeGen/SelectionDAG/FastISel.cpp
>     llvm/trunk/lib/CodeGen/SelectionDAG/SelectionDAGBuilder.cpp
>
> --------------------------------------------------------------------
> r232176:
>
> URL: http://llvm.org/viewvc/llvm-project?rev=232176&view=rev
> Log:
> ConstantFold: Fix big shift constant folding
>
> Constant folding for shift IR instructions ignores all bits above 32 of
> second argument (shift amount).
> Because of that, some undef results are not recognized and APInt can
> raise an assert failure if second argument has more than 64 bits.
>
> Patch by Paweł Bylica!
>
> Differential Revision: http://reviews.llvm.org/D7701
>
>
> Added:
>     llvm/trunk/test/Transforms/ConstProp/shift.ll
> Modified:
>     llvm/trunk/lib/IR/ConstantFold.cpp
>
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