glsl: Move the CSE equality functions to the ir class.

I want to reuse them in opt_algebraic.

v2: Merge in Chris Forbes's break fix.

Reviewed-by: Jordan Justen <[email protected]>

1 files changed, 1 insertions, 179 deletions

diff --git a/src/glsl/opt_cse.cpp b/src/glsl/opt_cse.cpp
index c53b4c6e737..8f73940d854 100644
--- a/src/glsl/opt_cse.cpp
+++ b/src/glsl/opt_cse.cpp
@@ -243,184 +243,6 @@ is_cse_candidate(ir_rvalue *ir)
    return v.ok;
 }
 
-static bool
-equals(ir_rvalue *a, ir_rvalue *b);
-
-static bool
-equals(ir_constant *a, ir_constant *b)
-{
-   if (!a || !b)
-      return false;
-
-   if (a->type != b->type)
-      return false;
-
-   for (unsigned i = 0; i < a->type->components(); i++) {
-      if (a->value.u[i] != b->value.u[i])
-         return false;
-   }
-
-   return true;
-}
-
-static bool
-equals(ir_dereference_variable *a, ir_dereference_variable *b)
-{
-   if (!a || !b)
-      return false;
-
-   return a->var == b->var;
-}
-
-static bool
-equals(ir_dereference_array *a, ir_dereference_array *b)
-{
-   if (!a || !b)
-      return false;
-
-   if (!equals(a->array, b->array))
-      return false;
-
-   if (!equals(a->array_index, b->array_index))
-      return false;
-
-   return true;
-}
-
-static bool
-equals(ir_swizzle *a, ir_swizzle *b)
-{
-   if (!a || !b)
-      return false;
-
-   if (a->type != b->type)
-      return false;
-
-   if (a->mask.x != b->mask.x ||
-       a->mask.y != b->mask.y ||
-       a->mask.z != b->mask.z ||
-       a->mask.w != b->mask.w) {
-      return false;
-   }
-
-   return equals(a->val, b->val);
-}
-
-static bool
-equals(ir_texture *a, ir_texture *b)
-{
-   if (!a || !b)
-      return false;
-
-   if (a->type != b->type)
-      return false;
-
-   if (a->op != b->op)
-      return false;
-
-   if (!equals(a->coordinate, b->coordinate))
-      return false;
-
-   if (!equals(a->projector, b->projector))
-      return false;
-
-   if (!equals(a->shadow_comparitor, b->shadow_comparitor))
-      return false;
-
-   if (!equals(a->offset, b->offset))
-      return false;
-
-   if (!equals(a->sampler, b->sampler))
-      return false;
-
-   switch (a->op) {
-   case ir_tex:
-   case ir_lod:
-   case ir_query_levels:
-      break;
-   case ir_txb:
-      if (!equals(a->lod_info.bias, b->lod_info.bias))
-         return false;
-      break;
-   case ir_txl:
-   case ir_txf:
-   case ir_txs:
-      if (!equals(a->lod_info.lod, b->lod_info.lod))
-         return false;
-      break;
-   case ir_txd:
-      if (!equals(a->lod_info.grad.dPdx, b->lod_info.grad.dPdx) ||
-          !equals(a->lod_info.grad.dPdy, b->lod_info.grad.dPdy))
-         return false;
-      break;
-   case ir_txf_ms:
-      if (!equals(a->lod_info.sample_index, b->lod_info.sample_index))
-         return false;
-      break;
-   case ir_tg4:
-      if (!equals(a->lod_info.component, b->lod_info.component))
-         return false;
-      break;
-   default:
-      assert(!"Unrecognized texture op");
-   }
-
-   return true;
-}
-
-static bool
-equals(ir_expression *a, ir_expression *b)
-{
-   if (!a || !b)
-      return false;
-
-   if (a->type != b->type)
-      return false;
-
-   if (a->operation != b->operation)
-      return false;
-
-   for (unsigned i = 0; i < a->get_num_operands(); i++) {
-      if (!equals(a->operands[i], b->operands[i]))
-         return false;
-   }
-
-   return true;
-}
-
-static bool
-equals(ir_rvalue *a, ir_rvalue *b)
-{
-   if (!a || !b)
-      return !a && !b;
-
-   if (a->type != b->type)
-      return false;
-
-   switch (a->ir_type) {
-   case ir_type_texture:
-      return equals(a->as_texture(), b->as_texture());
-
-   case ir_type_constant:
-      return equals(a->as_constant(), b->as_constant());
-
-   case ir_type_expression:
-      return equals(a->as_expression(), b->as_expression());
-
-   case ir_type_dereference_variable:
-      return equals(a->as_dereference_variable(), b->as_dereference_variable());
-
-   case ir_type_dereference_array:
-      return equals(a->as_dereference_array(), b->as_dereference_array());
-
-   case ir_type_swizzle:
-      return equals(a->as_swizzle(), b->as_swizzle());
-
-   default:
-      return false;
-   }
-}
-
 /**
  * Tries to find and return a reference to a previous computation of a given
  * expression.
@@ -441,7 +263,7 @@ cse_visitor::try_cse(ir_rvalue *rvalue)
          printf("\n");
       }
 
-      if (!equals(rvalue, *entry->val))
+      if (!rvalue->equals(*entry->val))
          continue;
 
       if (debug) {