[LLVMdev] Promoting i1,i8,i16

[Bill Wendling]

On Tue, Feb 3, 2009 at 10:23 AM, Villmow, Micah <Micah.Villmow at amd.com> wrote:
> Is there a way to force llvm to promote all smaller types to i32 instead of
> i16?
>
This might help. In TargetLowering.h:

  /// AddPromotedToType - If Opc/OrigVT is specified as being
promoted, the
  /// promotion code defaults to trying a larger integer/fp until it
can find
  /// one that works.  If that default is insufficient, this method
can be used
  /// by the target to override the default.
  void AddPromotedToType(unsigned Opc, MVT OrigVT, MVT DestVT) {
    PromoteToType[std::make_pair(Opc, OrigVT.getSimpleVT())] =
      DestVT.getSimpleVT();
  }

-bw