From 28fe509877495f95b25a191a7935ceeee65520dc Mon Sep 17 00:00:00 2001
From: Zoltan Herczeg <hzmester@freemail.hu>
Date: Fri, 7 Jun 2024 09:23:08 +0000
Subject: [PATCH] Fix register pair allocation

A free register is also allocated

Signed-off-by: Zoltan Herczeg zherczeg.u-szeged@partner.samsung.com
---
 src/jit/RegisterAlloc.cpp | 13 ++++---------
 1 file changed, 4 insertions(+), 9 deletions(-)

diff --git a/src/jit/RegisterAlloc.cpp b/src/jit/RegisterAlloc.cpp
index 450c3e636..fcef8d4da 100644
--- a/src/jit/RegisterAlloc.cpp
+++ b/src/jit/RegisterAlloc.cpp
@@ -347,15 +347,10 @@ uint8_t RegisterSet::allocateRegisterPair(VariableList::Variable* variable, uint
 
         size_t maxRangeEnd;
 
-        if (freeReg != VariableList::kUnusedReg) {
-            if (maxRangeEndSingle1 >= maxRangeEndPair) {
-                i = maxRangeIndexSingle1;
-                maxRangeEnd = maxRangeEndSingle1;
-            } else {
-                i = maxRangeIndexPair;
-                maxRangeEnd = maxRangeEndPair;
-            }
-        } else if (maxRangeEndPair < maxRangeEndSingle1 && maxRangeEndPair < maxRangeEndSingle2) {
+        if (freeReg != VariableList::kUnusedReg && maxRangeEndSingle1 >= maxRangeEndPair) {
+            i = maxRangeIndexSingle1;
+            maxRangeEnd = maxRangeEndSingle1;
+        } else if (freeReg == VariableList::kUnusedReg && maxRangeEndPair < maxRangeEndSingle1 && maxRangeEndPair < maxRangeEndSingle2) {
             i = maxRangeIndexSingle1;
             maxRangeEnd = maxRangeEndSingle2;
             freeReg = maxRangeIndexSingle2;