radeonsi/gfx9: fix VM fault with fetched instance divisors

We need to account for SGPR locations in merged shaders.

This case is exercised by KHR-GL45.enhanced_layouts.vertex_attrib_locations

Fixes: 79c2e7388c7f ("radeonsi/gfx9: use SPI_SHADER_USER_DATA_COMMON")
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
2 files changed