From 14210a62ef7ff1529f93b5c050553049e1bedd4a Mon Sep 17 00:00:00 2001
From: "Wolfgang (Blub) Bumiller" <blub@speed.at>
Date: Sun, 19 Aug 2012 19:54:15 +0200
Subject: [PATCH] functions which have no living values but store_return values
 may cause the allocator to be run with no allocations being made - in this
 case we shouldn't try accessing the empty array and simply exit the allocator

---
 ir.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/ir.c b/ir.c
index 158e207..0a6a8da 100644
--- a/ir.c
+++ b/ir.c
@@ -1894,6 +1894,10 @@ bool ir_function_allocate_locals(ir_function *self)
         }
     }
 
+    if (!alloc.sizes) {
+        goto cleanup;
+    }
+
     /* Adjust slot positions based on sizes */
     if (!function_allocator_positions_add(&alloc, 0))
         goto error;
-- 
2.39.2