parallel-wsloop-collapse-stacked-tile.cpp

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// RUN: %libomp-cxx-compile-and-run | FileCheck %s --match-full-lines
 
// collapse(2) on stacked tiles: only outer floor+tile consumed (works).
 
#ifndef HEADER
#define HEADER
 
#include <cstdlib>
#include <cstdio>
 
int main() {
  printf("do\n");
#pragma omp parallel for collapse(2) num_threads(1)
#pragma omp tile sizes(2)
#pragma omp tile sizes(4)
  for (int i = 0; i < 6; ++i)
    printf("i=%d\n", i);
  printf("done\n");
  return EXIT_SUCCESS;
}
 
#endif /* HEADER */
 
// CHECK:      do
// CHECK-NEXT: i=0
// CHECK-NEXT: i=1
// CHECK-NEXT: i=2
// CHECK-NEXT: i=3
// CHECK-NEXT: i=4
// CHECK-NEXT: i=5
// CHECK-NEXT: done