test/hotspot/jtreg/compiler/valhalla/valuetypes/TestCallingConventionC1.java

*** 2050,2055 ****
--- 2050,2119 ----
              }
              float n = test100_helper(fp1, fp2, rp, 1, 2, 3, 4);
              Asserts.assertEQ(result, n);
          }
      }
+ 
+     // C1->C2 force GC for every allocation when storing the returned
+     // fields back into a buffered object.
+     @Test(compLevel = C1)
+     public RefPoint test101(RefPoint rp) {
+         return test101_helper(rp);
+     }
+ 
+     @ForceCompile(compLevel = C2) @DontInline
+     public RefPoint test101_helper(RefPoint rp) {
+         return rp;
+     }
+ 
+     @DontCompile
+     public void test101_verifier(boolean warmup) {
+         int count = warmup ? 1 : 5;
+         for (int i=0; i<count; i++) {
+             RefPoint rp = new RefPoint(1, 2);
+             Object x = rp.x;
+             Object y = rp.y;
+             RefPoint result = new RefPoint(3, 4);
+             try (ForceGCMarker m = ForceGCMarker.mark(warmup)) {
+                 result = test101(rp);
+             }
+             Asserts.assertEQ(rp.x, result.x);
+             Asserts.assertEQ(rp.y, result.y);
+             Asserts.assertEQ(x, result.x);
+             Asserts.assertEQ(y, result.y);
+         }
+     }
+ 
+     // Same as test101, except we have Interpreter->C2 instead.
+     @Test(compLevel = C1)
+     public RefPoint test102(RefPoint rp) {
+         return test102_interp(rp);
+     }
+ 
+     @DontCompile @DontInline
+     public RefPoint test102_interp(RefPoint rp) {
+         return test102_helper(rp);
+     }
+ 
+     @ForceCompile(compLevel = C2) @DontInline
+     public RefPoint test102_helper(RefPoint rp) {
+         return rp;
+     }
+ 
+     @DontCompile
+     public void test102_verifier(boolean warmup) {
+         int count = warmup ? 1 : 5;
+         for (int i=0; i<count; i++) {
+             RefPoint rp = new RefPoint(11, 22);
+             Object x = rp.x;
+             Object y = rp.y;
+             RefPoint result = new RefPoint(333, 444);
+             try (ForceGCMarker m = ForceGCMarker.mark(warmup)) {
+                 result = test102(rp);
+             }
+             Asserts.assertEQ(rp.x, result.x);
+             Asserts.assertEQ(rp.y, result.y);
+             Asserts.assertEQ(x, result.x);
+             Asserts.assertEQ(y, result.y);
+         }
+     }
  }