[clang] [flang] [llvm] [openmp] [Clang][OpenMP][LoopTransformations] Add support for "#pragma omp fuse" loop transformation directive and "looprange" clause (PR #139293)

[Michael Kruse via llvm-commits]

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@@ -0,0 +1,50 @@
+// RUN: %libomp-compile-and-run  | FileCheck %s --match-full-lines
+
+#ifndef HEADER
+#define HEADER
+
+#include <stdlib.h>
+#include <stdio.h>
+
+int main() {
+  printf("do\n");
+#pragma omp fuse
+  {
+    for (int i = 5; i <= 25; i += 5)
+      printf("i=%d\n", i);
+    for (int j = 10; j < 100; j += 10)
+      printf("j=%d\n", j);
+    for (int k = 10; k > 0; --k)
+      printf("k=%d\n", k);
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Meinersbur wrote:

Nice test.

I hope these end2end tests were as useful for you as they were for me

https://github.com/llvm/llvm-project/pull/139293