commit 438f38c55afc8a31d01af357de95a56044ea7055
author Eric Anholt <eric@anholt.net> Thu Apr 29 13:54:19 2010 -0700
committer Eric Anholt <eric@anholt.net> Thu Apr 29 13:54:19 2010 -0700
tree a96fb0523f5c5ed6141ee26f24467a2d33405ee3
parent a2c6df556655e3619f5a0cd82b0d11aac37c5692

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

ir_dead_code.cpp

diff --git a/ir_dead_code.cpp b/ir_dead_code.cpp
index 81fbeba..a73e9ed 100644
--- a/ir_dead_code.cpp
+++ b/ir_dead_code.cpp
@@ -251,7 +251,10 @@
 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);
 }