For example a for loop is typical serial semantics: for (i=0;i<10;i++) { a[i] = i*10; } ... but it's obvious that this loop can execute all pass

For example a for loop is typical serial semantics: for (i=0;i<10;i++) { a[i] = i*10; } ... but it's obvious that this loop can execute all passes in parallel so we want to pass a concurrency suggestion to the compiler without losing the readability of the code, so perhaps something like this block syntax: parallel { for (i=0;i<10;i++) { a[i] = i*10; } }