xref: /llvm-project/flang/test/Lower/always-execute-loop-body.f90 (revision f35f863a88f83332bef9605ef4cfe4f05c066efb)
1! RUN: bbc --always-execute-loop-body --emit-fir -hlfir=false %s -o - | FileCheck %s
2! RUN: %flang_fc1 -mmlir --always-execute-loop-body -emit-fir -flang-deprecated-no-hlfir %s -o - | FileCheck %s
3
4! Given the flag `--always-execute-loop-body` the compiler emits an extra
5! code to change to tripcount, test tries to verify the extra emitted FIR.
6
7! CHECK-LABEL: func @_QPsome
8subroutine some()
9  integer :: i
10
11  ! CHECK: [[tripcount:%[0-9]+]] = arith.divsi
12  ! CHECK: [[one:%c1_i32[_0-9]*]] = arith.constant 1 : i32
13  ! CHECK: [[cmp:%[0-9]+]] = arith.cmpi slt, [[tripcount]], [[one]] : i32
14  ! CHECK: [[newtripcount:%[0-9]+]] = arith.select [[cmp]], [[one]], [[tripcount]] : i32
15  ! CHECK: fir.store [[newtripcount]] to %{{[0-9]+}} : !fir.ref<i32>
16  do i=4,1,1
17    stop 2
18  end do
19  return
20end
21