From 8fc21f481a5d76c99b92ae08726947450ecd5a91 Mon Sep 17 00:00:00 2001
From: MerryMage <MerryMage@users.noreply.github.com>
Date: Sat, 13 Aug 2016 01:55:03 +0100
Subject: [PATCH] RegAlloc: Handle case when def is unused

---
 src/backend_x64/reg_alloc.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/backend_x64/reg_alloc.cpp b/src/backend_x64/reg_alloc.cpp
index b5e1242e..9352fe15 100644
--- a/src/backend_x64/reg_alloc.cpp
+++ b/src/backend_x64/reg_alloc.cpp
@@ -392,7 +392,8 @@ void RegAlloc::EndOfAllocScope() {
             iter.values.clear();
             iter.values.emplace_back(iter.def);
             iter.def = nullptr;
-        } else if (!iter.values.empty()) {
+        }
+        if (!iter.values.empty()) {
             auto to_erase = std::remove_if(iter.values.begin(), iter.values.end(),
                                            [](const auto& inst){ return inst->use_count <= 0; });
             iter.values.erase(to_erase, iter.values.end());