test/compiler/jvmci/jdk.vm.ci.code.test/src/jdk/vm/ci/code/test/amd64/AMD64TestAssembler.java

@@ -83,16 +83,16 @@
         code.emitInt(size);
     }
 
     @Override
     public Register emitIntArg0() {
-        return codeCache.getRegisterConfig().getCallingConventionRegisters(HotSpotCallingConventionType.JavaCall, JavaKind.Int)[0];
+        return codeCache.getRegisterConfig().getCallingConventionRegisters(HotSpotCallingConventionType.JavaCall, JavaKind.Int).get(0);
     }
 
     @Override
     public Register emitIntArg1() {
-        return codeCache.getRegisterConfig().getCallingConventionRegisters(HotSpotCallingConventionType.JavaCall, JavaKind.Int)[1];
+        return codeCache.getRegisterConfig().getCallingConventionRegisters(HotSpotCallingConventionType.JavaCall, JavaKind.Int).get(1);
     }
 
     private void emitREX(boolean w, int r, int x, int b) {
         int wrxb = (w ? 0x08 : 0) | ((r >> 3) << 2) | ((x >> 3) << 1) | (b >> 3);
         if (wrxb != 0) {