src/cpu/x86/vm/templateInterpreter_x86_32.cpp

@@ -807,22 +807,29 @@
     // Load parameters
     const Register crc = rax;  // crc
     const Register buf = rdx;  // source java byte array address
     const Register len = rdi;  // length
 
+    // value              x86_32
+    // interp. arg ptr    ESP + 4
+    // int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int len)
+    //                                         3           2      1        0
+    // int java.util.zip.CRC32.updateByteBuffer(int crc, long buf, int off, int len)
+    //                                              4         2,3      1        0
+
     // Arguments are reversed on java expression stack
-    __ movl(len,   Address(rsp,   wordSize)); // Length
+    __ movl(len,   Address(rsp,   4 + 0)); // Length
     // Calculate address of start element
     if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) {
-      __ movptr(buf, Address(rsp, 3*wordSize)); // long buf
-      __ addptr(buf, Address(rsp, 2*wordSize)); // + offset
-      __ movl(crc,   Address(rsp, 5*wordSize)); // Initial CRC
+      __ movptr(buf, Address(rsp, 4 + 2 * wordSize)); // long buf
+      __ addptr(buf, Address(rsp, 4 + 1 * wordSize)); // + offset
+      __ movl(crc,   Address(rsp, 4 + 4 * wordSize)); // Initial CRC
     } else {
-      __ movptr(buf, Address(rsp, 3*wordSize)); // byte[] array
+      __ movptr(buf, Address(rsp, 4 + 2 * wordSize)); // byte[] array
       __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size
-      __ addptr(buf, Address(rsp, 2*wordSize)); // + offset
-      __ movl(crc,   Address(rsp, 4*wordSize)); // Initial CRC
+      __ addptr(buf, Address(rsp, 4 + 1 * wordSize)); // + offset
+      __ movl(crc,   Address(rsp, 4 + 3 * wordSize)); // Initial CRC
     }
 
     __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32()), crc, buf, len);
     // result in rax
 

@@ -838,10 +845,57 @@
 
     return entry;
   }
   return generate_native_entry(false);
 }
+
+/**
+* Method entry for static native methods:
+*   int java.util.zip.CRC32C.updateBytes(int crc, byte[] b, int off, int end)
+*   int java.util.zip.CRC32C.updateByteBuffer(int crc, long address, int off, int end)
+*/
+address InterpreterGenerator::generate_CRC32C_updateBytes_entry(AbstractInterpreter::MethodKind kind) {
+  if (UseCRC32CIntrinsics) {
+    address entry = __ pc();
+    // Load parameters
+    const Register crc = rax;  // crc
+    const Register buf = rcx;  // source java byte array address
+    const Register len = rdx;  // length
+    const Register end = len;
+
+    // value              x86_32
+    // interp. arg ptr    ESP + 4
+    // int java.util.zip.CRC32.updateBytes(int crc, byte[] b, int off, int end)
+    //                                         3           2      1        0
+    // int java.util.zip.CRC32.updateByteBuffer(int crc, long address, int off, int end)
+    //                                              4         2,3          1        0
+
+    // Arguments are reversed on java expression stack
+    __ movl(end, Address(rsp, 4 + 0)); // end
+    __ subl(len, Address(rsp, 4 + 1 * wordSize));  // end - offset == length
+    // Calculate address of start element
+    if (kind == Interpreter::java_util_zip_CRC32_updateByteBuffer) {
+      __ movptr(buf, Address(rsp, 4 + 2 * wordSize)); // long address
+      __ addptr(buf, Address(rsp, 4 + 1 * wordSize)); // + offset
+      __ movl(crc, Address(rsp, 4 + 4 * wordSize)); // Initial CRC
+    } else {
+      __ movptr(buf, Address(rsp, 4 + 2 * wordSize)); // byte[] array
+      __ addptr(buf, arrayOopDesc::base_offset_in_bytes(T_BYTE)); // + header size
+      __ addptr(buf, Address(rsp, 4 + 1 * wordSize)); // + offset
+      __ movl(crc, Address(rsp, 4 + 3 * wordSize)); // Initial CRC
+    }
+    __ super_call_VM_leaf(CAST_FROM_FN_PTR(address, StubRoutines::updateBytesCRC32C()), crc, buf, len);
+    // result in rax
+    // _areturn
+    __ pop(rdi);                // get return address
+    __ mov(rsp, rsi);           // set sp to sender sp
+    __ jmp(rdi);
+
+    return entry;
+  }
+  return generate_native_entry(false);
+}
 
 //
 // Interpreter stub for calling a native method. (asm interpreter)
 // This sets up a somewhat different looking stack for calling the native method
 // than the typical interpreter frame setup.