From 19d8fd9d10aa527661b2637b1a2969b643fd25cd Mon Sep 17 00:00:00 2001
From: Kunal Pathak <Kunal.Pathak@microsoft.com>
Date: Mon, 29 Jan 2024 09:37:30 -0800
Subject: [PATCH] For Debug, make sure we use right heuristics to match with
 Release

---
 src/coreclr/jit/lsra.cpp | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/src/coreclr/jit/lsra.cpp b/src/coreclr/jit/lsra.cpp
index ac2e25f95a11d6..3915a2bb45a164 100644
--- a/src/coreclr/jit/lsra.cpp
+++ b/src/coreclr/jit/lsra.cpp
@@ -12297,7 +12297,11 @@ LinearScan::RegisterSelection::RegisterSelection(LinearScan* linearScan)
     {
         ordering = W("ABCDEFGHIJKLMNOPQ");
 
-        if (!linearScan->enregisterLocalVars && linearScan->compiler->opts.OptimizationDisabled())
+        if (!linearScan->enregisterLocalVars && linearScan->compiler->opts.OptimizationDisabled()
+#ifdef TARGET_ARM64
+            && !linearScan->compiler->info.compNeedsConsecutiveRegisters
+#endif
+            )
         {
             ordering = W("MQQQQQQQQQQQQQQQQ");
         }