From: Eric Anholt <eric@anholt.net>
Date: Thu, 29 Apr 2010 20:54:19 +0000 (-0700)
Subject: ir_dead_code: Fix segfault on handling a return statement with no value.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=438f38c55afc8a31d01af357de95a56044ea7055;p=mesa.git

ir_dead_code: Fix segfault on handling a return statement with no value.
---

diff --git a/ir_dead_code.cpp b/ir_dead_code.cpp
index 81fbeba3213..a73e9ed9bbb 100644
--- a/ir_dead_code.cpp
+++ b/ir_dead_code.cpp
@@ -251,7 +251,10 @@ ir_dead_code_visitor::visit(ir_call *ir)
 void
 ir_dead_code_visitor::visit(ir_return *ir)
 {
-   ir->get_value()->accept(this);
+   ir_rvalue *val = ir->get_value();
+
+   if (val)
+      val->accept(this);
 }