8279076: C2: Bad AD file when matching SqrtF with UseSSE=0

Reviewed-by: kvn, sviswanathan

Author: shipilev

src/hotspot/cpu/x86/x86.ad

@@ -1601,6 +1601,16 @@ const bool Matcher::match_rule_supported(int opcode) {
         return false;
       }
       break;
+    case Op_SqrtF:
+      if (UseSSE < 1) {
+        return false;
+      }
+      break;
+    case Op_SqrtD:
+      if (UseSSE < 2) {
+        return false;
+      }
+      break;
   }
   return true;  // Match rules are supported by default.
 }

test/hotspot/jtreg/compiler/c2/TestSqrt.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (c) 2021, Red Hat, Inc. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package compiler.c2;
+
+/*
+ * @test
+ * @bug 8279076
+ * @summary SqrtD/SqrtF should be matched only on supported platforms
+ * @requires vm.debug
+ *
+ * @run main/othervm -XX:-TieredCompilation -Xcomp
+ *                   -XX:CompileOnly=compiler/c2/TestSqrt
+ *                   -XX:CompileOnly=java/lang/Math
+ *                   compiler.c2.TestSqrt
+ */
+public class TestSqrt {
+    static float srcF = 42.0f;
+    static double srcD = 42.0d;
+    static float dstF;
+    static double dstD;
+
+    public static void test() {
+        dstF = (float)Math.sqrt((double)srcF);
+        dstD = Math.sqrt(srcD);
+    }
+
+    public static void main(String args[]) {
+        for (int i = 0; i < 20_000; i++) {
+            test();
+        }
+    }
+}
+