[flang-commits] [flang] [flang][hlfir] Lower Cray pointee references. (PR #65563)
via flang-commits
flang-commits at lists.llvm.org
Thu Sep 7 07:23:20 PDT 2023
================
@@ -0,0 +1,230 @@
+! Test lowering of Cray pointee references.
+! RUN: bbc -emit-hlfir -o - -I nowhere %s 2>&1 | FileCheck %s
+
+
+subroutine test1()
+ real x(10), res
+ pointer (cp, x)
+ res = x(7)
+end subroutine test1
+! CHECK-LABEL: func.func @_QPtest1() {
+! CHECK: %[[VAL_0:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.array<?xf32>>>
+! CHECK: %[[VAL_1:.*]] = fir.alloca i64 {bindc_name = "cp", uniq_name = "_QFtest1Ecp"}
+! CHECK: %[[VAL_2:.*]]:2 = hlfir.declare %[[VAL_1]] {uniq_name = "_QFtest1Ecp"} : (!fir.ref<i64>) -> (!fir.ref<i64>, !fir.ref<i64>)
+! CHECK: %[[VAL_5:.*]] = arith.constant 10 : index
+! CHECK: %[[VAL_7:.*]] = fir.shape %[[VAL_5]] : (index) -> !fir.shape<1>
+! CHECK: %[[VAL_8:.*]] = fir.zero_bits !fir.ptr<!fir.array<?xf32>>
+! CHECK: %[[VAL_9:.*]] = arith.constant 0 : index
+! CHECK: %[[VAL_10:.*]] = fir.shape %[[VAL_9]] : (index) -> !fir.shape<1>
+! CHECK: %[[VAL_11:.*]] = fir.embox %[[VAL_8]](%[[VAL_10]]) : (!fir.ptr<!fir.array<?xf32>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>>
+! CHECK: fir.store %[[VAL_11]] to %[[VAL_0]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>
+! CHECK: %[[VAL_12:.*]]:2 = hlfir.declare %[[VAL_0]] {fortran_attrs = #fir.var_attrs<pointer>, uniq_name = "_QFtest1Ex"} : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>) -> (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>, !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>)
+! CHECK: %[[VAL_13:.*]] = fir.zero_bits !fir.ptr<!fir.array<?xf32>>
+! CHECK: %[[VAL_14:.*]] = fir.embox %[[VAL_13]](%[[VAL_7]]) : (!fir.ptr<!fir.array<?xf32>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>>
+! CHECK: fir.store %[[VAL_14]] to %[[VAL_12]]#0 : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>
+! CHECK: %[[VAL_15:.*]] = fir.convert %[[VAL_2]]#0 : (!fir.ref<i64>) -> !fir.ref<!fir.ptr<i64>>
+! CHECK: %[[VAL_16:.*]] = fir.load %[[VAL_15]] : !fir.ref<!fir.ptr<i64>>
+! CHECK: %[[VAL_17:.*]] = fir.convert %[[VAL_12]]#0 : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>) -> !fir.ref<!fir.box<none>>
+! CHECK: %[[VAL_18:.*]] = fir.convert %[[VAL_16]] : (!fir.ptr<i64>) -> !fir.llvm_ptr<i8>
+! CHECK: %[[VAL_19:.*]] = fir.call @_FortranAPointerAssociateScalar(%[[VAL_17]], %[[VAL_18]]) fastmath<contract> : (!fir.ref<!fir.box<none>>, !fir.llvm_ptr<i8>) -> none
+! CHECK: %[[VAL_20:.*]] = fir.load %[[VAL_12]]#0 : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>
+! CHECK: %[[VAL_21:.*]] = arith.constant 7 : index
+! CHECK: %[[VAL_22:.*]] = hlfir.designate %[[VAL_20]] (%[[VAL_21]]) : (!fir.box<!fir.ptr<!fir.array<?xf32>>>, index) -> !fir.ref<f32>
+
+
+subroutine test2(n)
+ integer n
+ real x
+ pointer (cp, x(3:n))
+ res = x(7)
+end subroutine test2
+! CHECK-LABEL: func.func @_QPtest2(
+! CHECK-SAME: %[[VAL_0:.*]]: !fir.ref<i32> {fir.bindc_name = "n"}) {
+! CHECK: %[[VAL_1:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.array<?xf32>>>
+! CHECK: %[[VAL_2:.*]] = fir.alloca i64 {bindc_name = "cp", uniq_name = "_QFtest2Ecp"}
+! CHECK: %[[VAL_3:.*]]:2 = hlfir.declare %[[VAL_2]] {uniq_name = "_QFtest2Ecp"} : (!fir.ref<i64>) -> (!fir.ref<i64>, !fir.ref<i64>)
+! CHECK: %[[VAL_19:.*]] = fir.shape_shift %{{.*}}, %{{.*}} : (index, index) -> !fir.shapeshift<1>
+! CHECK: %[[VAL_20:.*]] = fir.zero_bits !fir.ptr<!fir.array<?xf32>>
+! CHECK: %[[VAL_21:.*]] = arith.constant 0 : index
+! CHECK: %[[VAL_22:.*]] = fir.shape %[[VAL_21]] : (index) -> !fir.shape<1>
+! CHECK: %[[VAL_23:.*]] = fir.embox %[[VAL_20]](%[[VAL_22]]) : (!fir.ptr<!fir.array<?xf32>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>>
+! CHECK: fir.store %[[VAL_23]] to %[[VAL_1]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>
+! CHECK: %[[VAL_24:.*]]:2 = hlfir.declare %[[VAL_1]] {fortran_attrs = #fir.var_attrs<pointer>, uniq_name = "_QFtest2Ex"} : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>) -> (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>, !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>)
+! CHECK: %[[VAL_25:.*]] = fir.zero_bits !fir.ptr<!fir.array<?xf32>>
+! CHECK: %[[VAL_26:.*]] = fir.embox %[[VAL_25]](%[[VAL_19]]) : (!fir.ptr<!fir.array<?xf32>>, !fir.shapeshift<1>) -> !fir.box<!fir.ptr<!fir.array<?xf32>>>
+! CHECK: fir.store %[[VAL_26]] to %[[VAL_24]]#0 : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>
+! CHECK: %[[VAL_27:.*]] = fir.convert %[[VAL_3]]#0 : (!fir.ref<i64>) -> !fir.ref<!fir.ptr<i64>>
+! CHECK: %[[VAL_28:.*]] = fir.load %[[VAL_27]] : !fir.ref<!fir.ptr<i64>>
+! CHECK: %[[VAL_29:.*]] = fir.convert %[[VAL_24]]#0 : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>) -> !fir.ref<!fir.box<none>>
+! CHECK: %[[VAL_30:.*]] = fir.convert %[[VAL_28]] : (!fir.ptr<i64>) -> !fir.llvm_ptr<i8>
+! CHECK: %[[VAL_31:.*]] = fir.call @_FortranAPointerAssociateScalar(%[[VAL_29]], %[[VAL_30]]) fastmath<contract> : (!fir.ref<!fir.box<none>>, !fir.llvm_ptr<i8>) -> none
+! CHECK: %[[VAL_32:.*]] = fir.load %[[VAL_24]]#0 : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xf32>>>>
+! CHECK: %[[VAL_33:.*]] = arith.constant 7 : index
+! CHECK: %[[VAL_34:.*]] = hlfir.designate %[[VAL_32]] (%[[VAL_33]]) : (!fir.box<!fir.ptr<!fir.array<?xf32>>>, index) -> !fir.ref<f32>
+! CHECK: %[[VAL_35:.*]] = fir.load %[[VAL_34]] : !fir.ref<f32>
+
+subroutine test3(cp, n)
+ character(len=11) :: c(n:2*n), res
+ pointer (cp, c)
+ res = c(7)
+end subroutine test3
+! CHECK-LABEL: func.func @_QPtest3(
+! CHECK-SAME: %[[VAL_0:.*]]: !fir.ref<i64> {fir.bindc_name = "cp"},
+! CHECK-SAME: %[[VAL_1:.*]]: !fir.ref<i32> {fir.bindc_name = "n"}) {
+! CHECK: %[[VAL_2:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.array<?x!fir.char<1,11>>>>
+! CHECK: %[[VAL_3:.*]]:2 = hlfir.declare %[[VAL_1]] {uniq_name = "_QFtest3En"} : (!fir.ref<i32>) -> (!fir.ref<i32>, !fir.ref<i32>)
+! CHECK: %[[VAL_4:.*]]:2 = hlfir.declare %[[VAL_0]] {uniq_name = "_QFtest3Ecp"} : (!fir.ref<i64>) -> (!fir.ref<i64>, !fir.ref<i64>)
+! CHECK: %[[VAL_5:.*]] = arith.constant 11 : index
+! CHECK: %[[VAL_8:.*]] = arith.constant 11 : index
+! CHECK: %[[VAL_24:.*]] = fir.shape_shift %{{.*}}, %{{.*}} : (index, index) -> !fir.shapeshift<1>
+! CHECK: %[[VAL_25:.*]] = fir.zero_bits !fir.ptr<!fir.array<?x!fir.char<1,11>>>
+! CHECK: %[[VAL_26:.*]] = arith.constant 0 : index
+! CHECK: %[[VAL_27:.*]] = fir.shape %[[VAL_26]] : (index) -> !fir.shape<1>
+! CHECK: %[[VAL_28:.*]] = fir.embox %[[VAL_25]](%[[VAL_27]]) : (!fir.ptr<!fir.array<?x!fir.char<1,11>>>, !fir.shape<1>) -> !fir.box<!fir.ptr<!fir.array<?x!fir.char<1,11>>>>
+! CHECK: fir.store %[[VAL_28]] to %[[VAL_2]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?x!fir.char<1,11>>>>>
----------------
jeanPerier wrote:
This is the part that I find confusing given it is set again after the hlfir.declare with the "correct" information,
https://github.com/llvm/llvm-project/pull/65563
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