diff options
Diffstat (limited to 'src/compiler/glsl/ast_function.cpp')
| -rw-r--r-- | src/compiler/glsl/ast_function.cpp | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/src/compiler/glsl/ast_function.cpp b/src/compiler/glsl/ast_function.cpp index ea3ac87d810..7e62ab7d56d 100644 --- a/src/compiler/glsl/ast_function.cpp +++ b/src/compiler/glsl/ast_function.cpp @@ -2143,6 +2143,25 @@ ast_function_expression::hir(exec_list *instructions, /* an error has already been emitted */ value = ir_rvalue::error_value(ctx); } else { + if (state->stage == MESA_SHADER_TESS_CTRL && + sig->is_builtin() && strcmp(func_name, "barrier") == 0) { + if (state->current_function == NULL || + strcmp(state->current_function->function_name(), "main") != 0) { + _mesa_glsl_error(&loc, state, + "barrier() may only be used in main()"); + } + + if (state->found_return) { + _mesa_glsl_error(&loc, state, + "barrier() may not be used after return"); + } + + if (instructions != &state->current_function->body) { + _mesa_glsl_error(&loc, state, + "barrier() may not be used in control flow"); + } + } + value = generate_call(instructions, sig, &actual_parameters, sub_var, array_idx, state); if (!value) { |