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-rw-r--r--src/glsl/ast_function.cpp9
-rw-r--r--src/glsl/ast_to_hir.cpp9
2 files changed, 16 insertions, 2 deletions
diff --git a/src/glsl/ast_function.cpp b/src/glsl/ast_function.cpp
index 92e26bf2416..6749e998e5a 100644
--- a/src/glsl/ast_function.cpp
+++ b/src/glsl/ast_function.cpp
@@ -1785,7 +1785,14 @@ ast_function_expression::hir(exec_list *instructions,
/* an error has already been emitted */
value = ir_rvalue::error_value(ctx);
} else {
- value = generate_call(instructions, sig, &actual_parameters, state);
+ value = generate_call(instructions, sig, &actual_parameters, state);
+ if (!value) {
+ ir_variable *const tmp = new(ctx) ir_variable(glsl_type::void_type,
+ "void_var",
+ ir_var_temporary);
+ instructions->push_tail(tmp);
+ value = new(ctx) ir_dereference_variable(tmp);
+ }
}
return value;
diff --git a/src/glsl/ast_to_hir.cpp b/src/glsl/ast_to_hir.cpp
index ca30dbc499f..b5c4ed9c667 100644
--- a/src/glsl/ast_to_hir.cpp
+++ b/src/glsl/ast_to_hir.cpp
@@ -1270,7 +1270,14 @@ ast_expression::do_hir(exec_list *instructions,
* applied to one operand that can make them match, in which
* case this conversion is done."
*/
- if ((!apply_implicit_conversion(op[0]->type, op[1], state)
+
+ if (op[0]->type == glsl_type::void_type || op[1]->type == glsl_type::void_type) {
+ _mesa_glsl_error(& loc, state, "`%s': wrong operand types: "
+ "no operation `%1$s' exists that takes a left-hand "
+ "operand of type 'void' or a right operand of type "
+ "'void'", (this->oper == ast_equal) ? "==" : "!=");
+ error_emitted = true;
+ } else if ((!apply_implicit_conversion(op[0]->type, op[1], state)
&& !apply_implicit_conversion(op[1]->type, op[0], state))
|| (op[0]->type != op[1]->type)) {
_mesa_glsl_error(& loc, state, "operands of `%s' must have the same "