derek.holloway
7502bf64a4
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47 lines
2.5 KiB
Fortran
47 lines
2.5 KiB
Fortran
! RUN: bbc %s -o - -emit-hlfir | FileCheck %s --check-prefixes=ALL,REALLOCLHS
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! RUN: bbc %s -o - -emit-hlfir -frealloc-lhs | FileCheck %s --check-prefixes=ALL,REALLOCLHS
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! RUN: bbc %s -o - -emit-hlfir -frealloc-lhs=false | FileCheck %s --check-prefixes=ALL,NOREALLOCLHS
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! RUN: %flang_fc1 %s -o - -emit-hlfir | FileCheck %s --check-prefixes=ALL,REALLOCLHS
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! RUN: %flang_fc1 %s -o - -emit-hlfir -frealloc-lhs | FileCheck %s --check-prefixes=ALL,REALLOCLHS
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! RUN: %flang_fc1 %s -o - -emit-hlfir -fno-realloc-lhs 2>&1 | FileCheck %s --check-prefixes=ALL,NOREALLOCLHS
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! -fno-realloc-lhs must be ignored for polymorphic allocatable LHS (test3 below).
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subroutine test1(a, b)
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integer, allocatable :: a(:), b(:)
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a = b + 1
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end
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! ALL-LABEL: func.func @_QPtest1(
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! ALL: %[[VAL_3:.*]]:2 = hlfir.declare{{.*}}{fortran_attrs = #fir.var_attrs<allocatable>, uniq_name = "_QFtest1Ea"}
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! REALLOCLHS: hlfir.assign %{{.*}} to %[[VAL_3]]#0 realloc : !hlfir.expr<?xi32>, !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
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! NOREALLOCLHS: %[[VAL_20:.*]] = fir.load %[[VAL_3]]#0 : !fir.ref<!fir.box<!fir.heap<!fir.array<?xi32>>>>
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! NOREALLOCLHS: hlfir.assign %{{.*}} to %[[VAL_20]] : !hlfir.expr<?xi32>, !fir.box<!fir.heap<!fir.array<?xi32>>>
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subroutine test2(a, b)
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character(len=*), allocatable :: a(:)
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character(len=*) :: b(:)
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a = b
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end subroutine test2
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! ALL-LABEL: func.func @_QPtest2(
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! ALL: %[[VAL_3:.*]]:2 = hlfir.declare{{.*}}{fortran_attrs = #fir.var_attrs<allocatable>, uniq_name = "_QFtest2Ea"}
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! REALLOCLHS: hlfir.assign %{{.*}} to %[[VAL_3]]#0 realloc keep_lhs_len : !fir.box<!fir.array<?x!fir.char<1,?>>>, !fir.ref<!fir.box<!fir.heap<!fir.array<?x!fir.char<1,?>>>>>
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! NOREALLOCLHS: %[[VAL_7:.*]] = fir.load %[[VAL_3]]#0 : !fir.ref<!fir.box<!fir.heap<!fir.array<?x!fir.char<1,?>>>>>
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! NOREALLOCLHS: hlfir.assign %{{.*}} to %[[VAL_7]] : !fir.box<!fir.array<?x!fir.char<1,?>>>, !fir.box<!fir.heap<!fir.array<?x!fir.char<1,?>>>>
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! Polymorphic allocatable LHS: reallocation semantics must be used regardless of
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! -fno-realloc-lhs, because the Fortran standard requires dynamic type tracking
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! for polymorphic assignments (a F2003+ feature that cannot be safely skipped).
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subroutine test3(x)
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class(*), allocatable :: x
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x = 1
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end subroutine test3
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! ALL-LABEL: func.func @_QPtest3(
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! ALL: %[[VAL_1:.*]]:2 = hlfir.declare{{.*}}{fortran_attrs = #fir.var_attrs<allocatable>, uniq_name = "_QFtest3Ex"}
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! ALL: hlfir.assign %{{.*}} to %[[VAL_1]]#0 realloc : i32, !fir.ref<!fir.class<!fir.heap<none>>>
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