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TheRock/compiler/amd-llvm/flang/test/Analysis/AliasAnalysis/modref-call-equivalence.f90
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derek.holloway 7502bf64a4
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35 lines
1.2 KiB
Fortran

! RUN: bbc -emit-hlfir %s -o - | %python %S/gen_mod_ref_test.py | \
! RUN: fir-opt -pass-pipeline='builtin.module(func.func(test-fir-alias-analysis-modref))' \
! RUN: --mlir-disable-threading -o /dev/null 2>&1 | FileCheck %s
! Test that mod ref effects for variables captured in internal procedures
! propagate to all the variables they are in equivalence with.
subroutine test_captured_equiv()
implicit none
real :: test_var_x , test_var_y, test_var_z
equivalence(test_var_x, test_var_y)
call test_effect_internal()
contains
subroutine test_effect_internal()
test_var_y = 0.
end subroutine
end subroutine
! CHECK-LABEL: Testing : "_QPtest_captured_equiv"
! CHECK: test_effect_internal -> test_var_x#0: ModRef
! CHECK: test_effect_internal -> test_var_y#0: ModRef
! CHECK: test_effect_internal -> test_var_z#0: NoModRef
subroutine test_no_capture()
implicit none
real :: test_var_x , test_var_y
equivalence(test_var_x, test_var_y)
call test_effect_internal()
contains
subroutine test_effect_internal()
end subroutine
end subroutine
! CHECK-LABEL: Testing : "_QPtest_no_capture"
! CHECK: test_effect_internal -> test_var_x#0: NoModRef
! CHECK: test_effect_internal -> test_var_y#0: NoModRef