test/jdk/jdk/incubator/vector/templates/Perf-Scalar-Gather-op.template

rev 55606 : 8221812: Fine-tune jmh test for vector api
Summary: To compare performance of vector api and auto vectorization, vector
api and scalar test cases are updated to keep aligned.
Reviewed-by: duke

*** 1,53 ****
      @Benchmark
!     public Object gatherBase0() {
          $type$[] as = fa.apply(size);
          int[] is    = fs.apply(size);
          $type$[] rs = fr.apply(size);
  
          for (int i = 0; i < as.length; i++) {
              int ix = 0 + is[i];
              rs[i] = as[ix];
          }
  
!         return rs;
      }
  
  
!     Object gather(int window) {
          $type$[] as = fa.apply(size);
          int[] is    = fs.apply(size);
          $type$[] rs = fr.apply(size);
  
          for (int i = 0; i < as.length; i += window) {
              for (int j = 0; j < window; j++) {
                  int ix = i + is[i + j];
                  rs[i + j] = as[ix];
              }
          }
  
!         return rs;
      }
  
      @Benchmark
!     public Object gather064() {
          int window = 64 / $Wideboxtype$.SIZE;
!         return gather(window);
      }
  
      @Benchmark
!     public Object gather128() {
          int window = 128 / $Wideboxtype$.SIZE;
!         return gather(window);
      }
  
      @Benchmark
!     public Object gather256() {
          int window = 256 / $Wideboxtype$.SIZE;
!         return gather(window);
      }
  
      @Benchmark
!     public Object gather512() {
          int window = 512 / $Wideboxtype$.SIZE;
!         return gather(window);
      }
--- 1,57 ----
      @Benchmark
!     public void gatherBase0(Blackhole bh) {
          $type$[] as = fa.apply(size);
          int[] is    = fs.apply(size);
          $type$[] rs = fr.apply(size);
  
+         for (int ic = 0; ic < INVOC_COUNT; ic++) {
              for (int i = 0; i < as.length; i++) {
                  int ix = 0 + is[i];
                  rs[i] = as[ix];
              }
+         }
  
!         bh.consume(rs);
      }
  
  
!     void gather(int window, Blackhole bh) {
          $type$[] as = fa.apply(size);
          int[] is    = fs.apply(size);
          $type$[] rs = fr.apply(size);
  
+         for (int ic = 0; ic < INVOC_COUNT; ic++) {
              for (int i = 0; i < as.length; i += window) {
                  for (int j = 0; j < window; j++) {
                      int ix = i + is[i + j];
                      rs[i + j] = as[ix];
                  }
              }
+         }
  
!         bh.consume(rs);
      }
  
      @Benchmark
!     public void gather064(Blackhole bh) {
          int window = 64 / $Wideboxtype$.SIZE;
!         gather(window, bh);
      }
  
      @Benchmark
!     public void gather128(Blackhole bh) {
          int window = 128 / $Wideboxtype$.SIZE;
!         gather(window, bh);
      }
  
      @Benchmark
!     public void gather256(Blackhole bh) {
          int window = 256 / $Wideboxtype$.SIZE;
!         gather(window, bh);
      }
  
      @Benchmark
!     public void gather512(Blackhole bh) {
          int window = 512 / $Wideboxtype$.SIZE;
!         gather(window, bh);
      }