test/compiler/c2/Test8000805.java

*** 24,83 ****
  /**
   * @test
   * @bug 8000805
   * @summary JMM issue: short loads are non-atomic
   *
!  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -Xcomp -XX:+PrintCompilation -XX:CompileOnly=Test8000805.loadS2LmaskFF,Test8000805.loadS2Lmask16,Test8000805.loadS2Lmask13,Test8000805.loadUS_signExt,Test8000805.loadB2L_mask8 Test8000805
   */
  
  public class Test8000805 {
      static long loadS2LmaskFF   (short[] sa) { return sa[0] & 0xFF; }
!     static long loadS2LmaskFF_1 (short[] sa) { return sa[0] & 0xFF; }
  
      static long loadS2Lmask16   (short[] sa) { return sa[0] & 0xFFFE; }
!     static long loadS2Lmask16_1 (short[] sa) { return sa[0] & 0xFFFE; }
  
      static long loadS2Lmask13   (short[] sa) { return sa[0] & 0x0FFF; }
!     static long loadS2Lmask13_1 (short[] sa) { return sa[0] & 0x0FFF; }
  
      static int loadUS_signExt   (char[] ca) { return (ca[0] << 16) >> 16; }
!     static int loadUS_signExt_1 (char[] ca) { return (ca[0] << 16) >> 16; }
  
      static long loadB2L_mask8   (byte[] ba) { return ba[0] & 0x55; }
!     static long loadB2L_mask8_1 (byte[] ba) { return ba[0] & 0x55; }
  
      public static void main(String[] args) {
          for (int i = Byte.MIN_VALUE; i < Byte.MAX_VALUE; i++) {
              byte[] ba = new byte[]  { (byte) i};
  
              { long v1 = loadB2L_mask8(ba);
!               long v2 = loadB2L_mask8_1(ba);
                if (v1 != v2)
                throw new InternalError(String.format("loadB2L_mask8 failed: %x != %x", v1, v2)); }
          }
  
          for (int i = Short.MIN_VALUE; i < Short.MAX_VALUE; i++) {
              short[] sa = new short[] { (short)i };
              char[] ca = new char[] { (char)i };
  
              { long v1 = loadS2LmaskFF(sa);
!               long v2 = loadS2LmaskFF_1(sa);
                if (v1 != v2)
                throw new InternalError(String.format("loadS2LmaskFF failed: %x != %x", v1, v2)); }
  
              { long v1 = loadS2Lmask16(sa);
!               long v2 = loadS2Lmask16_1(sa);
                if (v1 != v2)
                throw new InternalError(String.format("loadS2Lmask16 failed: %x != %x", v1, v2)); }
  
              { long v1 = loadS2Lmask13(sa);
!               long v2 = loadS2Lmask13_1(sa);
                if (v1 != v2)
                throw new InternalError(String.format("loadS2Lmask13 failed: %x != %x", v1, v2)); }
  
              { int v1 = loadUS_signExt(ca);
!               int v2 = loadUS_signExt_1(ca);
                if (v1 != v2)
                  throw new InternalError(String.format("loadUS_signExt failed: %x != %x", v1, v2)); }
          }
  
          System.out.println("TEST PASSED.");
--- 24,87 ----
  /**
   * @test
   * @bug 8000805
   * @summary JMM issue: short loads are non-atomic
   *
!  * @run main/othervm -XX:+IgnoreUnrecognizedVMOptions -XX:-TieredCompilation -Xcomp
!  *      -XX:+PrintCompilation
!  *      -XX:CompileCommand=compileonly,compiler.c2.Test8000805::load*
!  *      compiler.c2.Test8000805
   */
  
+ package compiler.c2;
  public class Test8000805 {
      static long  loadS2LmaskFF (short[] sa) { return sa[0] & 0xFF; }
!     static long _loadS2LmaskFF (short[] sa) { return sa[0] & 0xFF; }
  
      static long  loadS2Lmask16 (short[] sa) { return sa[0] & 0xFFFE; }
!     static long _loadS2Lmask16 (short[] sa) { return sa[0] & 0xFFFE; }
  
      static long  loadS2Lmask13 (short[] sa) { return sa[0] & 0x0FFF; }
!     static long _loadS2Lmask13 (short[] sa) { return sa[0] & 0x0FFF; }
  
      static int  loadUS_signExt (char[] ca) { return (ca[0] << 16) >> 16; }
!     static int _loadUS_signExt (char[] ca) { return (ca[0] << 16) >> 16; }
  
      static long  loadB2L_mask8 (byte[] ba) { return ba[0] & 0x55; }
!     static long _loadB2L_mask8 (byte[] ba) { return ba[0] & 0x55; }
  
      public static void main(String[] args) {
          for (int i = Byte.MIN_VALUE; i < Byte.MAX_VALUE; i++) {
              byte[] ba = new byte[]  { (byte) i};
  
              { long v1 =  loadB2L_mask8(ba);
!               long v2 = _loadB2L_mask8(ba);
                if (v1 != v2)
                throw new InternalError(String.format("loadB2L_mask8 failed: %x != %x", v1, v2)); }
          }
  
          for (int i = Short.MIN_VALUE; i < Short.MAX_VALUE; i++) {
              short[] sa = new short[] { (short)i };
              char[] ca = new char[] { (char)i };
  
              { long v1 =  loadS2LmaskFF(sa);
!               long v2 = _loadS2LmaskFF(sa);
                if (v1 != v2)
                throw new InternalError(String.format("loadS2LmaskFF failed: %x != %x", v1, v2)); }
  
              { long v1 =  loadS2Lmask16(sa);
!               long v2 = _loadS2Lmask16(sa);
                if (v1 != v2)
                throw new InternalError(String.format("loadS2Lmask16 failed: %x != %x", v1, v2)); }
  
              { long v1 =  loadS2Lmask13(sa);
!               long v2 = _loadS2Lmask13(sa);
                if (v1 != v2)
                throw new InternalError(String.format("loadS2Lmask13 failed: %x != %x", v1, v2)); }
  
              { int v1 =  loadUS_signExt(ca);
!               int v2 = _loadUS_signExt(ca);
                if (v1 != v2)
                  throw new InternalError(String.format("loadUS_signExt failed: %x != %x", v1, v2)); }
          }
  
          System.out.println("TEST PASSED.");