// Test code generation of hlfir.region_assign when the LHS computed
// address must be saved before the assignment is evaluated. Because
// the assignment would modify the LHS evaluation.
// RUN: fir-opt %s --lower-hlfir-ordered-assignments | FileCheck %s
// Test simplified IR for:
//
// x(x(1):x(2)) = l
//
// Verify that, although a conflict is detected, the LHS is not saved
// on a descriptor stack: it is already in a register that can be used
// since there is no forall.
func.func @save_box_in_ssa_register(%arg0: !fir.box<!fir.array<?xi64>>, %arg1: !fir.box<!fir.array<?x!fir.logical<4>>>) {
%c2 = arith.constant 2 : index
%c1 = arith.constant 1 : index
%0:2 = hlfir.declare %arg1 {uniq_name = "l"} : (!fir.box<!fir.array<?x!fir.logical<4>>>) -> (!fir.box<!fir.array<?x!fir.logical<4>>>, !fir.box<!fir.array<?x!fir.logical<4>>>)
%1:2 = hlfir.declare %arg0 {uniq_name = "x"} : (!fir.box<!fir.array<?xi64>>) -> (!fir.box<!fir.array<?xi64>>, !fir.box<!fir.array<?xi64>>)
hlfir.region_assign {
hlfir.yield %0#0 : !fir.box<!fir.array<?x!fir.logical<4>>>
} to {
%2 = hlfir.designate %1#0 (%c1) : (!fir.box<!fir.array<?xi64>>, index) -> !fir.ref<i64>
%3 = fir.load %2 : !fir.ref<i64>
%4 = hlfir.designate %1#0 (%c2) : (!fir.box<!fir.array<?xi64>>, index) -> !fir.ref<i64>
%5 = fir.load %4 : !fir.ref<i64>
%6 = arith.subi %5, %3 : i64
%7 = fir.convert %6 : (i64) -> index
%8 = fir.shape %7 : (index) -> !fir.shape<1>
%9 = hlfir.designate %1#0 (%3:%5:%c1) shape %8 : (!fir.box<!fir.array<?xi64>>, i64, i64, index, !fir.shape<1>) -> !fir.box<!fir.array<?xi64>>
hlfir.yield %9 : !fir.box<!fir.array<?xi64>>
} user_defined_assign (%arg2: !fir.ref<!fir.logical<4>>) to (%arg3: !fir.ref<i64>) {
%2 = fir.load %arg2 : !fir.ref<!fir.logical<4>>
fir.call @logical_to_real(%arg3, %2) : (!fir.ref<i64>, !fir.logical<4>) -> ()
}
return
}
// CHECK-LABEL: func.func @save_box_in_ssa_register(
// CHECK-SAME: %[[VAL_0:.*]]: !fir.box<!fir.array<?xi64>>,
// CHECK-SAME: %[[VAL_1:.*]]: !fir.box<!fir.array<?x!fir.logical<4>>>) {
// CHECK: %[[VAL_5:.*]]:2 = hlfir.declare %[[VAL_0]] {uniq_name = "x"} : (!fir.box<!fir.array<?xi64>>) -> (!fir.box<!fir.array<?xi64>>, !fir.box<!fir.array<?xi64>>)
// CHECK: %[[VAL_18:.*]] = hlfir.designate %[[VAL_5]]#0 (%{{.*}}:%{{.*}}:%{{.*}}) shape %{{.*}} : (!fir.box<!fir.array<?xi64>>, i64, i64, index, !fir.shape<1>) -> !fir.box<!fir.array<?xi64>>
// CHECK: fir.do_loop %[[VAL_20:.*]] = {{.*}} {
// CHECK: %[[VAL_21:.*]] = hlfir.designate %[[VAL_18]] (%[[VAL_20]]) : (!fir.box<!fir.array<?xi64>>, index) -> !fir.ref<i64>
// CHECK: fir.call @logical_to_real(%[[VAL_21]], %{{.*}}) : (!fir.ref<i64>, !fir.logical<4>) -> ()
// CHECK: }
// CHECK: return
// CHECK: }
// Test simplified IR for:
//
// ! x = [0,1,2,4] -> [4,2,1,1]
// forall (i=1:3) x(x(i)+1:x(i+1)) = x(4-i)
//
// Verify that the LHS are all computed an saved on a stack before
// any assignment is made.
//
func.func @save_box_in_stack(%arg0: !fir.box<!fir.array<?xi32>>) {
%c1 = arith.constant 1 : index
%c1_i32 = arith.constant 1 : i32
%c4_i64 = arith.constant 4 : i64
%c3_i64 = arith.constant 3 : i64
%c1_i64 = arith.constant 1 : i64
%0:2 = hlfir.declare %arg0 {uniq_name = "x"} : (!fir.box<!fir.array<?xi32>>) -> (!fir.box<!fir.array<?xi32>>, !fir.box<!fir.array<?xi32>>)
hlfir.forall lb {
hlfir.yield %c1_i64 : i64
} ub {
hlfir.yield %c3_i64 : i64
} (%arg1: i64) {
hlfir.region_assign {
%1 = arith.subi %c4_i64, %arg1 : i64
%2 = hlfir.designate %0#0 (%1) : (!fir.box<!fir.array<?xi32>>, i64) -> !fir.ref<i32>
%3 = fir.load %2 : !fir.ref<i32>
hlfir.yield %3 : i32
} to {
%1 = hlfir.designate %0#0 (%arg1) : (!fir.box<!fir.array<?xi32>>, i64) -> !fir.ref<i32>
%2 = fir.load %1 : !fir.ref<i32>
%3 = arith.addi %2, %c1_i32 : i32
%4 = arith.addi %arg1, %c1_i64 : i64
%5 = hlfir.designate %0#0 (%4) : (!fir.box<!fir.array<?xi32>>, i64) -> !fir.ref<i32>
%6 = fir.load %5 : !fir.ref<i32>
%7 = arith.subi %6, %3 : i32
%8 = fir.convert %7 : (i32) -> index
%9 = fir.shape %8 : (index) -> !fir.shape<1>
%10 = hlfir.designate %0#0 (%3:%6:%c1) shape %9 : (!fir.box<!fir.array<?xi32>>, i32, i32, index, !fir.shape<1>) -> !fir.box<!fir.array<?xi32>>
hlfir.yield %10 : !fir.box<!fir.array<?xi32>>
}
}
return
}
// CHECK-LABEL: func.func @save_box_in_stack(
// CHECK-SAME: %[[VAL_0:.*]]: !fir.box<!fir.array<?xi32>>) {
// CHECK: %[[VAL_1:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.array<?xi32>>>
// CHECK: %[[VAL_2:.*]] = fir.alloca i64
// CHECK: %[[VAL_9:.*]]:2 = hlfir.declare %[[VAL_0]] {uniq_name = "x"} : (!fir.box<!fir.array<?xi32>>) -> (!fir.box<!fir.array<?xi32>>, !fir.box<!fir.array<?xi32>>)
// CHECK: %[[VAL_30:.*]] = fir.call @_FortranACreateDescriptorStack(%{{.*}}, %{{.*}}) : (!fir.ref<i8>, i32) -> !fir.llvm_ptr<i8>
// CHECK: fir.do_loop {{.*}} {
// CHECK: %[[VAL_48:.*]] = hlfir.designate %[[VAL_9]]#0 {{.*}} : (!fir.box<!fir.array<?xi32>>, i32, i32, index, !fir.shape<1>) -> !fir.box<!fir.array<?xi32>>
// CHECK: %[[VAL_49:.*]] = fir.convert %[[VAL_48]] : (!fir.box<!fir.array<?xi32>>) -> !fir.box<none>
// CHECK: %[[VAL_50:.*]] = fir.call @_FortranAPushDescriptor(%[[VAL_30]], %[[VAL_49]]) : (!fir.llvm_ptr<i8>, !fir.box<none>) -> none
// CHECK: }
// CHECK: fir.store %{{.*}} to %[[VAL_2]] : !fir.ref<i64>
// CHECK: fir.do_loop {{.*}} {
// CHECK: %[[VAL_60:.*]] = fir.load %[[VAL_2]] : !fir.ref<i64>
// CHECK: %[[VAL_61:.*]] = arith.addi %[[VAL_60]], %{{.*}} : i64
// CHECK: fir.store %[[VAL_61]] to %[[VAL_2]] : !fir.ref<i64>
// CHECK: %[[VAL_62:.*]] = fir.convert %[[VAL_1]] : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xi32>>>>) -> !fir.ref<!fir.box<none>>
// CHECK: %[[VAL_63:.*]] = fir.call @_FortranADescriptorAt(%[[VAL_30]], %[[VAL_60]], %[[VAL_62]]) : (!fir.llvm_ptr<i8>, i64, !fir.ref<!fir.box<none>>) -> none
// CHECK: %[[VAL_64:.*]] = fir.load %[[VAL_1]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xi32>>>>
// CHECK: %[[VAL_65:.*]] = fir.convert %[[VAL_64]] : (!fir.box<!fir.ptr<!fir.array<?xi32>>>) -> !fir.box<!fir.array<?xi32>>
// CHECK: hlfir.assign %{{.*}} to %[[VAL_65]] : i32, !fir.box<!fir.array<?xi32>>
// CHECK: }
// CHECK: fir.call @_FortranADestroyDescriptorStack(%[[VAL_30]]) : (!fir.llvm_ptr<i8>) -> none
// Test simplified IR for:
//
// integer(8) :: x(*)
// forall (integer::i=1:10) x(x(foo(x, i):bar(x, i))) = x(11-i)
//
// The shape of the vector subscripted designator must be saved at each
// iteration.
//
func.func @test_vector_subscript_overlap(%arg0: !fir.ref<!fir.array<?xi64>>) {
%c1 = arith.constant 1 : index
%c10 = arith.constant 10 : index
%c11 = arith.constant 11 : index
%0 = fir.undefined index
%1 = fir.shape %0 : (index) -> !fir.shape<1>
%2:2 = hlfir.declare %arg0(%1) {uniq_name = "x"} : (!fir.ref<!fir.array<?xi64>>, !fir.shape<1>) -> (!fir.box<!fir.array<?xi64>>, !fir.ref<!fir.array<?xi64>>)
hlfir.forall lb {
hlfir.yield %c1 : index
} ub {
hlfir.yield %c10 : index
} (%arg1: index) {
hlfir.region_assign {
%3 = arith.subi %c11, %arg1 : index
%4 = hlfir.designate %2#0 (%3) : (!fir.box<!fir.array<?xi64>>, index) -> !fir.ref<i64>
%5 = fir.load %4 : !fir.ref<i64>
hlfir.yield %5 : i64
} to {
%3 = fir.call @foo(%2#1, %arg1) : (!fir.ref<!fir.array<?xi64>>, index) -> index
%4 = fir.call @bar(%2#1, %arg1) : (!fir.ref<!fir.array<?xi64>>, index) -> index
%5 = arith.subi %4, %3 : index
%6 = fir.shape %5 : (index) -> !fir.shape<1>
%7 = hlfir.designate %2#0 (%3:%4:%c1) shape %6 : (!fir.box<!fir.array<?xi64>>, index, index, index, !fir.shape<1>) -> !fir.box<!fir.array<?xi64>>
hlfir.elemental_addr %6 : !fir.shape<1> {
^bb0(%arg2: index):
%8 = hlfir.designate %7 (%arg2) : (!fir.box<!fir.array<?xi64>>, index) -> !fir.ref<i64>
%9 = fir.load %8 : !fir.ref<i64>
%10 = hlfir.designate %2#0 (%9) : (!fir.box<!fir.array<?xi64>>, i64) -> !fir.ref<i64>
hlfir.yield %10 : !fir.ref<i64>
}
}
}
return
}
// CHECK-LABEL: func.func @test_vector_subscript_overlap(
// CHECK-SAME: %[[VAL_0:.*]]: !fir.ref<!fir.array<?xi64>>) {
// CHECK: %[[VAL_1:.*]] = fir.alloca !fir.box<!fir.ptr<!fir.array<?xi32>>>
// CHECK: %[[VAL_2:.*]] = fir.alloca i64
// CHECK: %[[VAL_3:.*]] = fir.alloca !fir.box<!fir.ptr<i64>>
// CHECK: %[[VAL_4:.*]] = fir.alloca i64
// CHECK: %[[VAL_11:.*]]:2 = hlfir.declare %[[VAL_0]](%{{.*}}) {uniq_name = "x"} : (!fir.ref<!fir.array<?xi64>>, !fir.shape<1>) -> (!fir.box<!fir.array<?xi64>>, !fir.ref<!fir.array<?xi64>>)
// CHECK: %[[VAL_30:.*]] = fir.call @_FortranACreateDescriptorStack(%{{.*}}, %{{.*}}) : (!fir.ref<i8>, i32) -> !fir.llvm_ptr<i8>
// CHECK: %[[VAL_37:.*]] = fir.call @_FortranACreateDescriptorStack(%{{.*}}, %{{.*}}) : (!fir.ref<i8>, i32) -> !fir.llvm_ptr<i8>
// CHECK: fir.do_loop {{.*}} {
// CHECK: %[[VAL_45:.*]] = fir.call @foo
// CHECK: %[[VAL_46:.*]] = fir.call @bar
// CHECK: %[[VAL_47:.*]] = arith.subi %[[VAL_46]], %[[VAL_45]] : index
// CHECK: %[[VAL_48:.*]] = fir.shape %[[VAL_47]] : (index) -> !fir.shape<1>
// CHECK: %[[VAL_51:.*]] = fir.zero_bits !fir.ref<!fir.array<?xi32>>
// CHECK: %[[VAL_52:.*]] = fir.embox %[[VAL_51]](%[[VAL_48]]) : (!fir.ref<!fir.array<?xi32>>, !fir.shape<1>) -> !fir.box<!fir.array<?xi32>>
// CHECK: %[[VAL_55:.*]] = fir.convert %[[VAL_52]] : (!fir.box<!fir.array<?xi32>>) -> !fir.box<none>
// Save the vector subscripted designator shape.
// CHECK: %[[VAL_56:.*]] = fir.call @_FortranAPushDescriptor({{.*}}, {{.*}}) : (!fir.llvm_ptr<i8>, !fir.box<none>) -> none
// CHECK: fir.do_loop {{.*}} {
// CHECK: %[[VAL_60:.*]] = hlfir.designate %[[VAL_11]]#0 (%{{.*}}) : (!fir.box<!fir.array<?xi64>>, i64) -> !fir.ref<i64>
// CHECK: %[[VAL_61:.*]] = fir.embox %[[VAL_60]] : (!fir.ref<i64>) -> !fir.box<i64>
// CHECK: %[[VAL_62:.*]] = fir.convert %[[VAL_61]] : (!fir.box<i64>) -> !fir.box<none>
// Save the vector subscripted designator element address.
// CHECK: %[[VAL_63:.*]] = fir.call @_FortranAPushDescriptor(%[[VAL_30]], %[[VAL_62]]) : (!fir.llvm_ptr<i8>, !fir.box<none>) -> none
// CHECK: }
// CHECK: }
// CHECK: fir.store %{{.*}} to %[[VAL_4]] : !fir.ref<i64>
// CHECK: fir.store %{{.*}} to %[[VAL_2]] : !fir.ref<i64>
// CHECK: fir.do_loop {{.*}} {
// CHECK: %[[VAL_69:.*]] = fir.load %{{.*}} : !fir.ref<i64>
// CHECK: %[[VAL_70:.*]] = fir.load %[[VAL_2]] : !fir.ref<i64>
// CHECK: %[[VAL_71:.*]] = arith.addi %[[VAL_70]], %{{.*}} : i64
// CHECK: fir.store %[[VAL_71]] to %[[VAL_2]] : !fir.ref<i64>
// CHECK: %[[VAL_72:.*]] = fir.convert %[[VAL_1]] : (!fir.ref<!fir.box<!fir.ptr<!fir.array<?xi32>>>>) -> !fir.ref<!fir.box<none>>
// Fetch the vector subscripted designator shape to create the elemental loop.
// CHECK: %[[VAL_73:.*]] = fir.call @_FortranADescriptorAt(%[[VAL_37]], %[[VAL_70]], %[[VAL_72]]) : (!fir.llvm_ptr<i8>, i64, !fir.ref<!fir.box<none>>) -> none
// CHECK: %[[VAL_74:.*]] = fir.load %[[VAL_1]] : !fir.ref<!fir.box<!fir.ptr<!fir.array<?xi32>>>>
// CHECK: %[[VAL_75:.*]] = fir.convert %[[VAL_74]] : (!fir.box<!fir.ptr<!fir.array<?xi32>>>) -> !fir.box<!fir.array<?xi32>>
// CHECK: %[[VAL_76:.*]] = arith.constant 0 : index
// CHECK: %[[VAL_77:.*]]:3 = fir.box_dims %[[VAL_75]], %[[VAL_76]] : (!fir.box<!fir.array<?xi32>>, index) -> (index, index, index)
// CHECK: %[[VAL_79:.*]] = arith.constant 1 : index
// CHECK: fir.do_loop %[[VAL_80:.*]] = %[[VAL_79]] to %[[VAL_77]]#1 step %[[VAL_79]] {
// CHECK: %[[VAL_81:.*]] = fir.load %[[VAL_4]] : !fir.ref<i64>
// CHECK: %[[VAL_82:.*]] = arith.addi %[[VAL_81]], %{{.*}} : i64
// CHECK: fir.store %[[VAL_82]] to %[[VAL_4]] : !fir.ref<i64>
// CHECK: %[[VAL_83:.*]] = fir.convert %[[VAL_3]] : (!fir.ref<!fir.box<!fir.ptr<i64>>>) -> !fir.ref<!fir.box<none>>
// Fetch the vector subscripted designator element address.
// CHECK: %[[VAL_84:.*]] = fir.call @_FortranADescriptorAt(%[[VAL_30]], %[[VAL_81]], %[[VAL_83]]) : (!fir.llvm_ptr<i8>, i64, !fir.ref<!fir.box<none>>) -> none
// CHECK: %[[VAL_85:.*]] = fir.load %[[VAL_3]] : !fir.ref<!fir.box<!fir.ptr<i64>>>
// CHECK: %[[VAL_86:.*]] = fir.box_addr %[[VAL_85]] : (!fir.box<!fir.ptr<i64>>) -> !fir.ptr<i64>
// CHECK: %[[VAL_87:.*]] = fir.convert %[[VAL_86]] : (!fir.ptr<i64>) -> !fir.ref<i64>
// CHECK: hlfir.assign %{{.*}} to %[[VAL_87]] : i64, !fir.ref<i64>
// CHECK: }
// CHECK: }
// CHECK: %[[VAL_88:.*]] = fir.call @_FortranADestroyDescriptorStack(%[[VAL_30]]) : (!fir.llvm_ptr<i8>) -> none
// CHECK: %[[VAL_89:.*]] = fir.call @_FortranADestroyDescriptorStack(%[[VAL_37]]) : (!fir.llvm_ptr<i8>) -> none
func.func private @integer_to_real(!fir.ref<i64>, !fir.logical<4>)
func.func private @foo(!fir.ref<!fir.array<?xi64>>, index) -> index
func.func private @bar(!fir.ref<!fir.array<?xi64>>, index) -> index
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