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[flang] added write-after-endfile testcase #396

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[flang] added write-after-endfile testcase #396

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b781747
added write-after-endfile testcase
Apr 26, 2026
448999d
added io-after-close testcase
May 4, 2026
06c8c97
Remove write-after-endfile testcase
May 6, 2026
5bbd740
updated testcase and reference output
May 14, 2026
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5 changes: 5 additions & 0 deletions Fortran/cray/f2023/12/11/CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -0,0 +1,5 @@
file(GLOB Source *.f90)

llvm_singlesource()

file(COPY lit.local.cfg DESTINATION "${CMAKE_CURRENT_BINARY_DIR}")
53 changes: 53 additions & 0 deletions Fortran/cray/f2023/12/11/io-after-close.f90
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program io_after_close

implicit none
integer :: n, k, l
logical :: ok

ok = .true.

open(5, err=500, iostat=n)
k = 45
goto 505
500 continue
k = 46
505 continue
print *, 'k after OPEN:', k
ok = ok .and. (k == 45)

close(5, err=510, iostat=n)
k = 55
goto 515
510 continue
k = 56
515 continue
print *, 'k after CLOSE:', k
ok = ok .and. (k == 55)

read(5, err=520, iostat=n) l
k = 65
goto 523
520 continue
k = 66
523 continue
print *, 'iostat after read:', n, ' k:', k
ok = ok .and. (k == 66)

l = 34
write(5, err=525, iostat=n) l
k = 65
goto 528
525 continue
k = 66
528 continue
print *, 'iostat after write:', n, ' k:', k
ok = ok .and. (k == 66)

if (ok) then
print *, 'PASS'
else
print *, 'FAIL'
end if

end program io_after_close

5 changes: 5 additions & 0 deletions Fortran/cray/f2023/12/11/io-after-close.reference_output
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Original file line number Diff line number Diff line change
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k after OPEN: 45
k after CLOSE: 55
iostat after read: 0 k: 65
iostat after write: 0 k: 65
FAIL
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@eugeneepshteyn eugeneepshteyn May 11, 2026

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The test fails?

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@kwyatt-ext kwyatt-ext May 11, 2026

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Eugene is right. This expected output is not correct. If your test is successful in branching to the error label for the last 2 cases, then your "k" value should be "66" for both and the final should be PASS.

2 changes: 2 additions & 0 deletions Fortran/cray/f2023/12/11/lit.local.cfg
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config.traditional_output = True
config.single_source = True
1 change: 1 addition & 0 deletions Fortran/cray/f2023/12/CMakeLists.txt
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add_subdirectory(11)
1 change: 1 addition & 0 deletions Fortran/cray/f2023/CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,3 +1,4 @@
add_subdirectory(10)
add_subdirectory(13)
add_subdirectory(16)
add_subdirectory(12)