From 7b2dc26555db2ef75c4ef822613a63b8c1d25e85 Mon Sep 17 00:00:00 2001
From: Egor Bogatov <egorbo@gmail.com>
Date: Fri, 26 May 2023 11:55:14 +0200
Subject: [PATCH] fix ISA outerloop tests (#86705)

---
 src/coreclr/jit/hwintrinsicxarch.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/coreclr/jit/hwintrinsicxarch.cpp b/src/coreclr/jit/hwintrinsicxarch.cpp
index e62dc8ee4d246..379509a17180e 100644
--- a/src/coreclr/jit/hwintrinsicxarch.cpp
+++ b/src/coreclr/jit/hwintrinsicxarch.cpp
@@ -2565,18 +2565,23 @@ GenTree* Compiler::impSpecialIntrinsic(NamedIntrinsic        intrinsic,
         {
             assert(sig->numArgs == 1);
 
-            op1 = impSIMDPopStack();
-
 #if defined(TARGET_X86)
             if (varTypeIsLong(simdBaseType))
             {
+                if (!compExactlyDependsOn(InstructionSet_SSE41))
+                {
+                    // We need SSE41 to handle long, use software fallback
+                    break;
+                }
                 // Create a GetElement node which handles decomposition
+                op1     = impSIMDPopStack();
                 op2     = gtNewIconNode(0);
                 retNode = gtNewSimdGetElementNode(retType, op1, op2, simdBaseJitType, simdSize);
                 break;
             }
 #endif // TARGET_X86
 
+            op1     = impSIMDPopStack();
             retNode = gtNewSimdHWIntrinsicNode(retType, op1, intrinsic, simdBaseJitType, simdSize);
             break;
         }