ir_constant_expression: Add support for ir_unop_u2f.

Also make ir_unop_i2f only operate on signed integers.

diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index b0333db..acfbb86 100644 (file)
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -87,13 +87,15 @@ ir_expression::constant_expression_value()
       }
       break;
    case ir_unop_i2f:
-      assert(op[0]->type->base_type == GLSL_TYPE_UINT ||
-            op[0]->type->base_type == GLSL_TYPE_INT);
+      assert(op[0]->type->base_type == GLSL_TYPE_INT);
       for (unsigned c = 0; c < op[0]->type->components(); c++) {
-        if (op[0]->type->base_type == GLSL_TYPE_INT)
-           data.f[c] = op[0]->value.i[c];
-        else
-           data.f[c] = op[0]->value.u[c];
+        data.f[c] = op[0]->value.i[c];
+      }
+      break;
+   case ir_unop_u2f:
+      assert(op[0]->type->base_type == GLSL_TYPE_UINT);
+      for (unsigned c = 0; c < op[0]->type->components(); c++) {
+        data.f[c] = op[0]->value.u[c];
       }
       break;
    case ir_unop_b2f: