From 86a3557d7c95ac945eedf42ab095639b255c1bed Mon Sep 17 00:00:00 2001 From: Neil Roberts Date: Sat, 4 Jul 2015 22:40:59 +0100 Subject: [PATCH] glsl: Make sure not to dereference NULL In this bit of code point_five can be NULL if the expression is not a constant. This fixes it to match the pattern of the rest of the chunk of code so that it checks for NULLs. Cc: Matt Turner Cc: "10.6" Reviewed-by: Matt Turner --- src/glsl/opt_algebraic.cpp | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/glsl/opt_algebraic.cpp b/src/glsl/opt_algebraic.cpp index 9b8a426d79c..c4b87151199 100644 --- a/src/glsl/opt_algebraic.cpp +++ b/src/glsl/opt_algebraic.cpp @@ -589,7 +589,7 @@ ir_algebraic_visitor::handle_expression(ir_expression *ir) continue; ir_constant *point_five = add_expr->operands[1 - j]->as_constant(); - if (!point_five->is_value(0.5, 0)) + if (!point_five || !point_five->is_value(0.5, 0)) continue; if (abs_expr->operands[0]->equals(sign_expr->operands[0])) { -- 2.30.2