The current logic considers that the nir_intrinsic_component(store_intr) encodes the source components start, but it actually encodes the destination one. Source component offset adjustment is taken care of in install_registers_instr(), when offset_swizzle() is called.
This fixes dEQP-GLES2.functional.shaders.random.all_features.fragment.45 when PAN_MESA_DEBUG=deqp (looks like exposing GLES3 features has an impact on the varyings layout).
Signed-off-by: Boris Brezillon boris.brezillon@collabora.com /cc @alyssa @tomeu