[flang-commits] [clang] [flang] [flang] Add -f[no-]unroll-loops flag (PR #122906)

[Kiran Chandramohan via flang-commits]

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@@ -0,0 +1,37 @@
+! RUN: %flang_fc1 -emit-llvm -O1 -funroll-loops -mllvm -force-vector-width=2 -o- %s | FileCheck %s --check-prefixes=CHECK,UNROLL
+! RUN: %flang_fc1 -emit-llvm -O2 -mllvm -force-vector-width=2 -o- %s | FileCheck %s --check-prefixes=CHECK,UNROLL
+! RUN: %flang_fc1 -emit-llvm -O1 -fno-unroll-loops -mllvm -force-vector-width=2 -o- %s | FileCheck %s --check-prefixes=CHECK,NO-UNROLL
+! RUN: %flang_fc1 -emit-llvm -O1 -mllvm -force-vector-width=2 -o- %s | FileCheck %s --check-prefixes=CHECK,NO-UNROLL
+
+! CHECK-LABEL: @unroll
+! CHECK-SAME: (ptr nocapture writeonly %[[ARG0:.*]])
+subroutine unroll(a)
+  real(kind=8), intent(out) :: a(1000)
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kiranchandramohan wrote:

Can this be an integer array to avoid the `uitofp` ?

https://github.com/llvm/llvm-project/pull/122906