tree dce07739301240a0142f6d28a392fb67eb233536
parent 61e256c9c44b023a5296c8641fa482e23d1d70a5
author Greg Fischer <greg@lunarg.com> 1617215196 -0600
committer GitHub <noreply@github.com> 1617215196 -0400
gpgsig -----BEGIN PGP SIGNATURE-----
 
 wsBcBAABCAAQBQJgZL7cCRBK7hj4Ov3rIwAAdHIIACQZt7o5/GGQHcJtCr6F+zCx
 ktmCwYCY19XQd5cRlD9oESkwimrlH2TntbqeZllNxq44k5PC963KHa6wydiHtAEZ
 0mRw33jySxkHa6QORjDQU4Tt2RXcy/pfLZHXuDtfnywgv9zycY5IGOAcPUpFCWS7
 1rhvDmucG3qHQN8MCq4bkMuKkIPBB+ekYL+iognVBP8ZQ55kBZaTFQ+Cr5VbNh4c
 n6Ik0O3SdG0jpi148yM+52jx0oiSB0sCXRuawo2Buyu3Zupa9QnzcdDwkqXyhO88
 ElSQDTQ26iMR4slgUprCVLJhoxcAxWhEO52fB2EUr3yXbf0WDZ2rJHCkn680K58=
 =mNpp
 -----END PGP SIGNATURE-----
 

Add interpolate legalization pass (#4220)

This pass converts an internal form of GLSLstd450 Interpolate ops
to the externally valid form. The external form takes the lvalue
of the interpolant. The internal form can do a load of the interpolant.
The pass replaces the load with its pointer. The internal form is
generated by glslang and possibly other frontends for HLSL shaders.
The new pass is called as part of HLSL legalization after all
propagation is complete.

Also adds internal interpolate form to pre-legalization validation