1! RUN: bbc -emit-fir -hlfir=false -o - %s | FileCheck %s 2! RUN: %flang_fc1 -emit-fir -flang-deprecated-no-hlfir -o - %s | FileCheck %s 3 4! Test a simple while loop. 5! CHECK-LABEL: simple_loop 6subroutine simple_loop 7 ! CHECK: %[[I_REF:.*]] = fir.alloca i32 {bindc_name = "i", uniq_name = "_QFsimple_loopEi"} 8 integer :: i 9 10 ! CHECK: %[[C5:.*]] = arith.constant 5 : i32 11 ! CHECK: fir.store %[[C5]] to %[[I_REF]] 12 i = 5 13 14 ! CHECK: br ^[[BB1:.*]] 15 ! CHECK: ^[[BB1]]: // 2 preds: ^{{.*}}, ^[[BB2:.*]] 16 ! CHECK-DAG: %[[I:.*]] = fir.load %[[I_REF]] : !fir.ref<i32> 17 ! CHECK-DAG: %[[C1:.*]] = arith.constant 1 : i32 18 ! CHECK: %[[COND:.*]] = arith.cmpi sgt, %[[I]], %[[C1]] : i32 19 ! CHECK: cond_br %[[COND]], ^[[BB2]], ^[[BB3:.*]] 20 ! CHECK: ^[[BB2]]: // pred: ^[[BB1]] 21 ! CHECK-DAG: %[[I2:.*]] = fir.load %[[I_REF]] : !fir.ref<i32> 22 ! CHECK-DAG: %[[C2:.*]] = arith.constant 2 : i32 23 ! CHECK: %[[INC:.*]] = arith.subi %[[I2]], %[[C2]] : i32 24 ! CHECK: fir.store %[[INC]] to %[[I_REF]] : !fir.ref<i32> 25 ! CHECK: br ^[[BB1]] 26 do while (i .gt. 1) 27 i = i - 2 28 end do 29 30 ! CHECK: ^[[BB3]]: // pred: ^[[BB1]] 31 ! CHECK: %[[I3:.*]] = fir.load %[[I_REF]] : !fir.ref<i32> 32 ! CHECK: fir.call @_FortranAioOutputInteger32(%{{.*}}, %[[I3]]) {{.*}}: (!fir.ref<i8>, i32) -> i1 33 print *, i 34end subroutine 35 36! Test 2 nested while loops. 37! CHECK-LABEL: while_inside_while_loop 38subroutine while_inside_while_loop 39 ! CHECK-DAG: %[[I_REF:.*]] = fir.alloca i32 {bindc_name = "i", uniq_name = "_QFwhile_inside_while_loopEi"} 40 ! CHECK-DAG: %[[J_REF:.*]] = fir.alloca i32 {bindc_name = "j", uniq_name = "_QFwhile_inside_while_loopEj"} 41 integer :: i, j 42 43 ! CHECK: %[[C13:.*]] = arith.constant 13 : i32 44 ! CHECK: fir.store %[[C13]] to %[[I_REF]] 45 i = 13 46 47 ! CHECK: br ^[[HDR1:.*]] 48 ! CHECK: ^[[HDR1]]: // 2 preds: ^{{.*}}, ^[[EXIT2:.*]] 49 ! CHECK-DAG: %[[I:.*]] = fir.load %[[I_REF]] : !fir.ref<i32> 50 ! CHECK-DAG: %[[C8:.*]] = arith.constant 8 : i32 51 ! CHECK: %[[COND:.*]] = arith.cmpi sgt, %[[I]], %[[C8]] : i32 52 ! CHECK: cond_br %[[COND]], ^[[BODY1:.*]], ^[[EXIT1:.*]] 53 do while (i .gt. 8) 54 ! CHECK: ^[[BODY1]]: // pred: ^[[HDR1]] 55 ! CHECK-DAG: %[[I2:.*]] = fir.load %[[I_REF]] : !fir.ref<i32> 56 ! CHECK-DAG: %[[C5:.*]] = arith.constant 5 : i32 57 ! CHECK: %[[INC:.*]] = arith.subi %[[I2]], %[[C5]] : i32 58 ! CHECK: fir.store %[[INC]] to %[[I_REF]] : !fir.ref<i32> 59 i = i - 5 60 61 ! CHECK: %[[C3:.*]] = arith.constant 3 : i32 62 ! CHECK: fir.store %[[C3]] to %[[J_REF]] 63 j = 3 64 65 ! CHECK: br ^[[HDR2:.*]] 66 ! CHECK: ^[[HDR2]]: // 2 preds: ^[[BODY1]], ^[[BODY2:.*]] 67 ! CHECK-DAG: %[[J:.*]] = fir.load %[[J_REF]] : !fir.ref<i32> 68 ! CHECK-DAG: %[[I3:.*]] = fir.load %[[I_REF]] : !fir.ref<i32> 69 ! CHECK: %[[COND2:.*]] = arith.cmpi slt, %[[J]], %[[I3]] : i32 70 ! CHECK: cond_br %[[COND2]], ^[[BODY2]], ^[[EXIT2]] 71 do while (j .lt. i) 72 ! CHECK: ^[[BODY2]]: // pred: ^[[HDR2]] 73 ! CHECK-DAG: %[[J2:.*]] = fir.load %[[J_REF]] : !fir.ref<i32> 74 ! CHECK-DAG: %[[C2:.*]] = arith.constant 2 : i32 75 ! CHECK: %[[INC2:.*]] = arith.muli %[[C2]], %[[J2]] : i32 76 ! CHECK: fir.store %[[INC2]] to %[[J_REF]] : !fir.ref<i32> 77 j = j * 2 78 ! CHECK: br ^[[HDR2]] 79 end do 80 81 ! CHECK: ^[[EXIT2]]: // pred: ^[[HDR2]] 82 ! CHECK: br ^[[HDR1]] 83 end do 84 85 ! CHECK: ^[[EXIT1]]: // pred: ^[[HDR1]] 86 ! CHECK: %[[IPRINT:.*]] = fir.load %[[I_REF]] : !fir.ref<i32> 87 ! CHECK: fir.call @_FortranAioOutputInteger32(%{{.*}}, %[[IPRINT]]) {{.*}}: (!fir.ref<i8>, i32) -> i1 88 ! CHECK: %[[JPRINT:.*]] = fir.load %[[J_REF]] : !fir.ref<i32> 89 ! CHECK: fir.call @_FortranAioOutputInteger32(%{{.*}}, %[[JPRINT]]) {{.*}}: (!fir.ref<i8>, i32) -> i1 90 print *, i, j 91end subroutine 92