[Mesa-dev] [PATCH 18/29] nir/glsl_to_nir: set the bit-size in the result of evaluate_rvalue

[Samuel Iglesias Gonsálvez]

From: Iago Toral Quiroga <itoral at igalia.com>

Found while testing UBO loads in scenarios like this:

(assign (x) (var_ref vec_ctor)
  (expression float d2f
      (expression double ubo_load (constant uint (0)) (constant uint (0)))))

Without this patch, the src expression of d2f would be evaluated to a bitsize
of 32, which is not correct and would hit an assert in nir_validate.
---
 src/compiler/nir/glsl_to_nir.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/compiler/nir/glsl_to_nir.cpp b/src/compiler/nir/glsl_to_nir.cpp
index f9ec0d5..498733f 100644
--- a/src/compiler/nir/glsl_to_nir.cpp
+++ b/src/compiler/nir/glsl_to_nir.cpp
@@ -1187,6 +1187,7 @@ nir_visitor::evaluate_rvalue(ir_rvalue* ir)
       load_instr->dest.ssa.bit_size = glsl_get_bit_size(ir->type->base_type);
    }
 
+   this->result->bit_size = glsl_get_bit_size(ir->type->base_type);
    return this->result;
 }
 
-- 
2.5.0