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

[Tom Stellard]

On Mon, Mar 23, 2015 at 10:25:46AM +0000, Paweł Bylica wrote:
> Any opinion about that?
> 

These both LGTM, but they still need code owner approval.

-Tom

> 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
> >