X87: Change the test case for X87 RunFloat64Add and RunFloat64Sub

test/cctest/compiler/test-run-machops.cc

Index: test/cctest/compiler/test-run-machops.cc
diff --git a/test/cctest/compiler/test-run-machops.cc b/test/cctest/compiler/test-run-machops.cc
index 2c093f987c049571bfef06a60b592e5731780ff3..b1cc5f7589e19827e7d464d5c64418064a3da195 100644
--- a/test/cctest/compiler/test-run-machops.cc
+++ b/test/cctest/compiler/test-run-machops.cc
@@ -3491,7 +3491,10 @@ TEST(RunFloat64Add) {
   m.Return(m.Float64Add(m.Parameter(0), m.Parameter(1)));
 
   FOR_FLOAT64_INPUTS(i) {
-    FOR_FLOAT64_INPUTS(j) { CheckDoubleEq(*i + *j, m.Call(*i, *j)); }
+    FOR_FLOAT64_INPUTS(j) {
+      volatile double expected = *i + *j;
+      CheckDoubleEq(expected, m.Call(*i, *j));
+    }
   }
 }
 
@@ -3502,7 +3505,10 @@ TEST(RunFloat64Sub) {
   m.Return(m.Float64Sub(m.Parameter(0), m.Parameter(1)));
 
   FOR_FLOAT64_INPUTS(i) {
-    FOR_FLOAT64_INPUTS(j) { CheckDoubleEq(*i - *j, m.Call(*i, *j)); }
+    FOR_FLOAT64_INPUTS(j) {
+      volatile double expected = *i - *j;
+      CheckDoubleEq(expected, m.Call(*i, *j));
+    }
   }
 }