8371352: [8u] Fix VS2010 build issue in check_code.c

Reviewed-by: phh, andrew

Author: zzambers

jdk/src/share/native/common/check_code.c

@@ -1161,10 +1161,11 @@ verify_opcode_operands(context_type *context, unsigned int inumber, int offset)
     case JVM_OPC_if_acmpeq: case JVM_OPC_if_acmpne:
     case JVM_OPC_goto: {
         /* Set the ->operand to be the instruction number of the target. */
-        int jump = (((signed char)(code[offset+1])) << 8) + code[offset+2];
+        int jump, target;
+        jump = (((signed char)(code[offset+1])) << 8) + code[offset+2];
         if (!isLegalOffset(context, offset, jump))
             CCerror(context, "Illegal target of jump or branch");
-        int target = offset + jump;
+        target = offset + jump;
         this_idata->operand.i = code_data[target];
         break;
     }
@@ -1175,12 +1176,13 @@ verify_opcode_operands(context_type *context, unsigned int inumber, int offset)
         /* FALLTHROUGH */
     case JVM_OPC_goto_w: {
         /* Set the ->operand to be the instruction number of the target. */
-        int jump = (((signed char)(code[offset+1])) << 24) +
+        int jump, target;
+        jump = (((signed char)(code[offset+1])) << 24) +
                      (code[offset+2] << 16) + (code[offset+3] << 8) +
                      (code[offset + 4]);
         if (!isLegalOffset(context, offset, jump))
             CCerror(context, "Illegal target of jump or branch");
-        int target = offset + jump;
+        target = offset + jump;
         this_idata->operand.i = code_data[target];
         break;
     }
@@ -1193,6 +1195,7 @@ verify_opcode_operands(context_type *context, unsigned int inumber, int offset)
         int *saved_operand;
         int keys;
         int k, delta;
+        int jump, target;
 
         if (context->major_version < NONZERO_PADDING_BYTES_IN_SWITCH_MAJOR_VERSION) {
             /* 4639449, 4647081: Padding bytes must be zero. */
@@ -1219,10 +1222,10 @@ verify_opcode_operands(context_type *context, unsigned int inumber, int offset)
             }
         }
         saved_operand = NEW(int, keys + 2);
-        int jump = _ck_ntohl(lpc[0]);
+        jump = _ck_ntohl(lpc[0]);
         if (!isLegalOffset(context, offset, jump))
             CCerror(context, "Illegal default target in switch");
-        int target = offset + jump;
+        target = offset + jump;
         saved_operand[keys + 1] = code_data[target];
         for (k = keys, lptr = &lpc[3]; --k >= 0; lptr += delta) {
             jump = _ck_ntohl(lptr[0]);
@@ -1765,8 +1768,9 @@ isLegalOffset(context_type *context, int bci, int offset)
     int *code_data = context->code_data;
     int max_offset = 65535; // JVMS 4.11
     int min_offset = -65535;
+    int target;
     if (offset < min_offset || offset > max_offset) return JNI_FALSE;
-    int target = bci + offset;
+    target = bci + offset;
     return (target >= 0 && target < code_length && code_data[target] >= 0);
 }