[arm64] The ubfx instruction can be used with a mask-width=64

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 146d8dc4132a4d508b25d859a6d1d54f251c7b65..b5eeb8717e6be57abb0f0e6239530541a0f7deff 100644
--- a/test/cctest/compiler/test-run-machops.cc
+++ b/test/cctest/compiler/test-run-machops.cc
@@ -6746,6 +6746,15 @@ TEST(Regression6046a) {
   CHECK_EQ(0, m.Call());
 }
 
+TEST(Regression6122) {
+  BufferedRawMachineAssemblerTester<int64_t> m;
+  m.Return(m.Word64Shr(m.Word64And(m.Int64Constant(59), m.Int64Constant(-1)),
+                       m.Int64Constant(0)));
+  CHECK_EQ(59, m.Call());
+}
+
+#endif  // V8_TARGET_ARCH_64_BIT
+
 TEST(Regression6046b) {
   BufferedRawMachineAssemblerTester<int32_t> m;
   m.Return(m.Word32Shr(m.Word32And(m.Int32Constant(0), m.Int32Constant(0)),
@@ -6753,7 +6762,12 @@ TEST(Regression6046b) {
   CHECK_EQ(0, m.Call());
 }
 
-#endif  // V8_TARGET_ARCH_64_BIT
+TEST(Regression6122b) {
+  BufferedRawMachineAssemblerTester<int32_t> m;
+  m.Return(m.Word32Shr(m.Word32And(m.Int32Constant(59), m.Int32Constant(-1)),
+                       m.Int32Constant(0)));
+  CHECK_EQ(59, m.Call());
+}
 
 TEST(Regression6028) {
   BufferedRawMachineAssemblerTester<int32_t> m;