98fcc11d1a
Tests converted from test/Lower: goto-do-body.f90, mixed_loops.f90, while_loop.f90 From test/Lower/forall: degenerate.f90, forall-2.f90
94 lines
3.6 KiB
Fortran
94 lines
3.6 KiB
Fortran
! RUN: %flang_fc1 -emit-hlfir -o - %s | FileCheck %s
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! Test a simple while loop.
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! CHECK-LABEL: simple_loop
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subroutine simple_loop
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! CHECK: %[[I_ADDR:.*]] = fir.alloca i32 {bindc_name = "i", uniq_name = "_QFsimple_loopEi"}
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! CHECK: %[[I:.*]]:2 = hlfir.declare %[[I_ADDR]]
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integer :: i
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! CHECK: %[[C5:.*]] = arith.constant 5 : i32
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! CHECK: hlfir.assign %[[C5]] to %[[I]]#0
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i = 5
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! CHECK: cf.br ^[[BB1:.*]]
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! CHECK: ^[[BB1]]: // 2 preds: ^{{.*}}, ^[[BB2:.*]]
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! CHECK: %[[IVAL:.*]] = fir.load %[[I]]#0 : !fir.ref<i32>
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! CHECK: %[[C1:.*]] = arith.constant 1 : i32
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! CHECK: %[[COND:.*]] = arith.cmpi sgt, %[[IVAL]], %[[C1]] : i32
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! CHECK: cf.cond_br %[[COND]], ^[[BB2]], ^[[BB3:.*]]
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! CHECK: ^[[BB2]]: // pred: ^[[BB1]]
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! CHECK: %[[IVAL2:.*]] = fir.load %[[I]]#0 : !fir.ref<i32>
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! CHECK: %[[C2:.*]] = arith.constant 2 : i32
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! CHECK: %[[INC:.*]] = arith.subi %[[IVAL2]], %[[C2]] : i32
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! CHECK: hlfir.assign %[[INC]] to %[[I]]#0 : i32, !fir.ref<i32>
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! CHECK: cf.br ^[[BB1]]
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do while (i .gt. 1)
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i = i - 2
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end do
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! CHECK: ^[[BB3]]: // pred: ^[[BB1]]
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! CHECK: %[[IVAL3:.*]] = fir.load %[[I]]#0 : !fir.ref<i32>
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! CHECK: fir.call @_FortranAioOutputInteger32(%{{.*}}, %[[IVAL3]])
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print *, i
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end subroutine
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! Test 2 nested while loops.
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! CHECK-LABEL: while_inside_while_loop
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subroutine while_inside_while_loop
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! CHECK-DAG: %[[I_ADDR:.*]] = fir.alloca i32 {bindc_name = "i", uniq_name = "_QFwhile_inside_while_loopEi"}
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! CHECK-DAG: %[[I:.*]]:2 = hlfir.declare %[[I_ADDR]]
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! CHECK-DAG: %[[J_ADDR:.*]] = fir.alloca i32 {bindc_name = "j", uniq_name = "_QFwhile_inside_while_loopEj"}
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! CHECK-DAG: %[[J:.*]]:2 = hlfir.declare %[[J_ADDR]]
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integer :: i, j
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! CHECK: %[[C13:.*]] = arith.constant 13 : i32
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! CHECK: hlfir.assign %[[C13]] to %[[I]]#0
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i = 13
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! CHECK: cf.br ^[[HDR1:.*]]
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! CHECK: ^[[HDR1]]: // 2 preds: ^{{.*}}, ^[[EXIT2:.*]]
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! CHECK: %[[IVAL:.*]] = fir.load %[[I]]#0 : !fir.ref<i32>
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! CHECK: %[[C8:.*]] = arith.constant 8 : i32
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! CHECK: %[[COND:.*]] = arith.cmpi sgt, %[[IVAL]], %[[C8]] : i32
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! CHECK: cf.cond_br %[[COND]], ^[[BODY1:.*]], ^[[EXIT1:.*]]
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do while (i .gt. 8)
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! CHECK: ^[[BODY1]]: // pred: ^[[HDR1]]
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! CHECK: %[[IVAL2:.*]] = fir.load %[[I]]#0 : !fir.ref<i32>
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! CHECK: %[[C5:.*]] = arith.constant 5 : i32
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! CHECK: %[[INC:.*]] = arith.subi %[[IVAL2]], %[[C5]] : i32
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! CHECK: hlfir.assign %[[INC]] to %[[I]]#0 : i32, !fir.ref<i32>
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i = i - 5
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! CHECK: %[[C3:.*]] = arith.constant 3 : i32
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! CHECK: hlfir.assign %[[C3]] to %[[J]]#0
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j = 3
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! CHECK: cf.br ^[[HDR2:.*]]
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! CHECK: ^[[HDR2]]: // 2 preds: ^[[BODY1]], ^[[BODY2:.*]]
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! CHECK: %[[JVAL:.*]] = fir.load %[[J]]#0 : !fir.ref<i32>
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! CHECK: %[[IVAL3:.*]] = fir.load %[[I]]#0 : !fir.ref<i32>
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! CHECK: %[[COND2:.*]] = arith.cmpi slt, %[[JVAL]], %[[IVAL3]] : i32
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! CHECK: cf.cond_br %[[COND2]], ^[[BODY2]], ^[[EXIT2:.*]]
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do while (j .lt. i)
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! CHECK: ^[[BODY2]]: // pred: ^[[HDR2]]
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! CHECK: %[[C2:.*]] = arith.constant 2 : i32
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! CHECK: %[[JVAL2:.*]] = fir.load %[[J]]#0 : !fir.ref<i32>
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! CHECK: %[[INC2:.*]] = arith.muli %[[C2]], %[[JVAL2]] : i32
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! CHECK: hlfir.assign %[[INC2]] to %[[J]]#0 : i32, !fir.ref<i32>
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j = j * 2
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! CHECK: cf.br ^[[HDR2]]
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end do
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! CHECK: ^[[EXIT2]]: // pred: ^[[HDR2]]
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! CHECK: cf.br ^[[HDR1]]
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end do
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! CHECK: ^[[EXIT1]]: // pred: ^[[HDR1]]
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! CHECK: %[[IPRINT:.*]] = fir.load %[[I]]#0 : !fir.ref<i32>
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! CHECK: fir.call @_FortranAioOutputInteger32(%{{.*}}, %[[IPRINT]])
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! CHECK: %[[JPRINT:.*]] = fir.load %[[J]]#0 : !fir.ref<i32>
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! CHECK: fir.call @_FortranAioOutputInteger32(%{{.*}}, %[[JPRINT]])
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print *, i, j
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end subroutine
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