On Wed, Jul 1, 2015 at 8:02 AM, Rob Clark <robdcl...@gmail.com> wrote: > From: Rob Clark <robcl...@freedesktop.org> > > Signed-off-by: Rob Clark <robcl...@freedesktop.org> > --- > src/glsl/nir/nir_lower_phis_to_scalar.c | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/src/glsl/nir/nir_lower_phis_to_scalar.c > b/src/glsl/nir/nir_lower_phis_to_scalar.c > index a57d253..739170d 100644 > --- a/src/glsl/nir/nir_lower_phis_to_scalar.c > +++ b/src/glsl/nir/nir_lower_phis_to_scalar.c > @@ -75,6 +75,7 @@ is_phi_src_scalarizable(nir_phi_src *src, > return should_lower_phi(nir_instr_as_phi(src_instr), state); > > case nir_instr_type_load_const: > + case nir_instr_type_ssa_undef: > /* These are trivially scalarizable */ > return true; > > -- > 2.4.3 >
We might wind up with a mov to pick off a component of the undef, which I don't think we can get rid of right now, but it should be easy enough to handle and Jason is writing an undef propagation pass that should clean it up. Reviewed-by: Connor Abbott <cwabbo...@gmail.com> _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
