[flang-commits] [flang] [flang][acc] Fix crash on collapse(force:N) with non-tightly nested loops (PR #191310)

[Razvan Lupusoru via flang-commits]

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@@ -3591,6 +3601,7 @@ class FirConverter : public Fortran::lower::AbstractConverter {
   }
 
   void genFIR(const Fortran::parser::OpenACCConstruct &acc) {
+    Fortran::lower::clearCollapsedDoConstructs();
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razvanlupusoru wrote:

Please see my question below which asks for an additional test for ensuring collapsing is possible even if an inner loop is also marked with `acc loop`. This logic here might suggest it would not work.

https://github.com/llvm/llvm-project/pull/191310