ir_constant_expression: Add support for "all" builtin.

1 files changed, 6 insertions, 1 deletions

diff --git a/src/glsl/ir_constant_expression.cpp b/src/glsl/ir_constant_expression.cpp
index 0ffa1f0097..bce6747e87 100644
--- a/src/glsl/ir_constant_expression.cpp
+++ b/src/glsl/ir_constant_expression.cpp
@@ -804,7 +804,12 @@ ir_call::constant_expression_value()
    if (strcmp(callee, "abs") == 0) {
       expr = new(mem_ctx) ir_expression(ir_unop_abs, type, op[0], NULL);
    } else if (strcmp(callee, "all") == 0) {
-      return NULL; /* FINISHME: implement this */
+      assert(op[0]->type->is_boolean());
+      for (unsigned c = 0; c < op[0]->type->components(); c++) {
+	 if (!op[0]->value.b[c])
+	    return new(mem_ctx) ir_constant(false);
+      }
+      return new(mem_ctx) ir_constant(true);
    } else if (strcmp(callee, "any") == 0) {
       return NULL; /* FINISHME: implement this */
    } else if (strcmp(callee, "asin") == 0) {