derek.holloway
7502bf64a4
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66 lines
3.2 KiB
Fortran
66 lines
3.2 KiB
Fortran
! Test various aspects around call lowering. More detailed tests around core
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! requirements are done in call-xxx.f90 and dummy-argument-xxx.f90 files.
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! RUN: bbc -emit-hlfir %s -o - | FileCheck %s
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! CHECK-LABEL: func @_QPtest_nested_calls
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subroutine test_nested_calls()
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interface
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subroutine foo(i)
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integer :: i
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end subroutine
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integer function bar()
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end function
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end interface
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! CHECK: %[[result:.*]] = fir.call @_QPbar() {{.*}}: () -> i32
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! CHECK: %[[assoc:.*]]:3 = hlfir.associate %[[result]] {adapt.valuebyref} : (i32) -> (!fir.ref<i32>, !fir.ref<i32>, i1)
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! CHECK: fir.call @_QPfoo(%[[assoc]]#0) {{.*}}: (!fir.ref<i32>) -> ()
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! CHECK: hlfir.end_associate %[[assoc]]#1, %[[assoc]]#2 : !fir.ref<i32>, i1
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call foo(bar())
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end subroutine
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! Check correct lowering of the result from call to bind(c) function that
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! return a char.
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subroutine call_bindc_char()
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interface
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function int_to_char(int) bind(c)
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use iso_c_binding
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character(kind=c_char) :: int_to_char
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integer(c_int), value :: int
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end function
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end interface
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print*, int_to_char(40)
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end subroutine
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! CHECK-LABEL: func.func @_QPcall_bindc_char
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! CHECK: %{{.*}} = fir.call @int_to_char(%{{.*}}) {{.*}}: (i32) -> !fir.char<1>
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! Check correct lowering of function body that return char and have the bind(c)
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! attribute.
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function f_int_to_char(i) bind(c, name="f_int_to_char")
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use iso_c_binding
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character(kind=c_char) :: f_int_to_char
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integer(c_int), value :: i
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f_int_to_char = char(i)
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end function
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! CHECK-LABEL: func.func @f_int_to_char(
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! CHECK-SAME: %[[ARG0:.*]]: i32 {fir.bindc_name = "i"}) -> !fir.char<1> attributes {fir.bindc_name = "f_int_to_char", fir.proc_attrs = #fir.proc_attrs<bind_c>} {
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! CHECK: %[[TEMP:.*]] = fir.alloca !fir.char<1>
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! CHECK: %[[RESULT:.*]] = fir.alloca !fir.char<1> {bindc_name = "f_int_to_char", uniq_name = "_QFf_int_to_charEf_int_to_char"}
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! CHECK: %[[RESULT_DECL:.*]]:2 = hlfir.declare %[[RESULT]] typeparams %c1{{.*}} {uniq_name = "_QFf_int_to_charEf_int_to_char"} : (!fir.ref<!fir.char<1>>, index) -> (!fir.ref<!fir.char<1>>, !fir.ref<!fir.char<1>>)
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! CHECK: %[[INT_I:.*]] = fir.alloca i32
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! CHECK: fir.store %[[ARG0]] to %[[INT_I]] : !fir.ref<i32>
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! CHECK: %[[INT_I_DECL:.*]]:2 = hlfir.declare %[[INT_I]] dummy_scope %{{.*}} arg 1 {fortran_attrs = #fir.var_attrs<value>, uniq_name = "_QFf_int_to_charEi"} : (!fir.ref<i32>, !fir.dscope) -> (!fir.ref<i32>, !fir.ref<i32>)
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! CHECK: %[[ARG0_2:.*]] = fir.load %[[INT_I_DECL]]#0 : !fir.ref<i32>
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! CHECK: %[[ARG0_I64:.*]] = fir.convert %[[ARG0_2]] : (i32) -> i64
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! CHECK: %[[ARG0_I8:.*]] = fir.convert %[[ARG0_I64]] : (i64) -> i8
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! CHECK: %[[UNDEF:.*]] = fir.undefined !fir.char<1>
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! CHECK: %[[CHAR_RES:.*]] = fir.insert_value %[[UNDEF]], %[[ARG0_I8]], [0 : index] : (!fir.char<1>, i8) -> !fir.char<1>
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! CHECK: fir.store %[[CHAR_RES]] to %[[TEMP]] : !fir.ref<!fir.char<1>>
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! CHECK: %[[EXPR:.*]] = hlfir.as_expr %[[TEMP]] move %false : (!fir.ref<!fir.char<1>>, i1) -> !hlfir.expr<!fir.char<1>>
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! CHECK: hlfir.assign %[[EXPR]] to %[[RESULT_DECL]]#0 : !hlfir.expr<!fir.char<1>>, !fir.ref<!fir.char<1>>
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! CHECK: hlfir.destroy %[[EXPR]] : !hlfir.expr<!fir.char<1>>
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! CHECK: %[[LOAD_RES:.*]] = fir.load %[[RESULT_DECL]]#0 : !fir.ref<!fir.char<1>>
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! CHECK: return %[[LOAD_RES]] : !fir.char<1>
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