nir: Invalidate live SSA def information when making new SSA defs.

[mesa.git] / src / compiler / glsl / opt_tree_grafting.cpp

diff --git a/src/compiler/glsl/opt_tree_grafting.cpp b/src/compiler/glsl/opt_tree_grafting.cpp
index 28b6e1856e8bd605d30f33532be729987fe57933..6b5d93af66162380fef12003d3cdf560ecb9acc6 100644 (file)
--- a/src/compiler/glsl/opt_tree_grafting.cpp
+++ b/src/compiler/glsl/opt_tree_grafting.cpp
@@ -232,7 +232,7 @@ ir_tree_grafting_visitor::visit_enter(ir_call *ir)
 ir_visitor_status
 ir_tree_grafting_visitor::visit_enter(ir_expression *ir)
 {
-   for (unsigned int i = 0; i < ir->get_num_operands(); i++) {
+   for (unsigned int i = 0; i < ir->num_operands; i++) {
       if (do_graft(&ir->operands[i]))
         return visit_stop;
    }
@@ -371,6 +371,17 @@ tree_grafting_basic_block(ir_instruction *bb_first,
       if (lhs_var->data.precise)
          continue;
 
+      /* Do not graft sampler and image variables. This is a workaround to
+       * st/glsl_to_tgsi being unable to handle expression parameters to image
+       * intrinsics.
+       *
+       * Note that if this is ever fixed, we still need to skip grafting when
+       * any image layout qualifiers (including the image format) are set,
+       * since we must not lose those.
+       */
+      if (lhs_var->type->is_sampler() || lhs_var->type->is_image())
+         continue;
+
       ir_variable_refcount_entry *entry = info->refs->get_variable_entry(lhs_var);
 
       if (!entry->declaration ||