glsl: Set location on structure-split sampler uniform variables

gl_nir_lower_samplers_as_deref splits structure uniform variables,
creating new variables for individual fields.  As part of that, it
calculates a new location.  It then never set this on the new variables.

Thanks to Michael Fiano for finding this bug.  Fixes crashes on i965
with Piglit's new tests/spec/glsl-1.10/execution/samplers/uniform-struct
test, which was reduced from the failing case in Michael's app.

Fixes: f003859f97c nir: Make gl_nir_lower_samplers use gl_nir_lower_samplers_as_deref
Reviewed-by: Timothy Arceri <tarceri@itsqueeze.com>

diff --git a/src/compiler/glsl/gl_nir_lower_samplers_as_deref.c b/src/compiler/glsl/gl_nir_lower_samplers_as_deref.c
index 27e2d780e7094f12bd3e571628fcc3d81dbb551c..b56ae0c50435315390d3dcbe1751679a11b6b4a5 100644 (file)
--- a/src/compiler/glsl/gl_nir_lower_samplers_as_deref.c
+++ b/src/compiler/glsl/gl_nir_lower_samplers_as_deref.c
@@ -177,6 +177,7 @@ lower_deref(nir_builder *b, struct lower_samplers_as_deref_state *state,
    } else {
       var = nir_variable_create(state->shader, nir_var_uniform, type, name);
       var->data.binding = binding;
+      var->data.location = location;
       _mesa_hash_table_insert_pre_hashed(state->remap_table, hash, name, var);
    }