Here's a general approach to handle PR116701. I considered
adding manual deletions as quoted below and mentioned in the
PR, but seeing the handling of "integer 8" in
fortran-torture-execute I decided to follow that example:
better scan the source for open-statements than relying on
manual annotations and people remembering to add them for
new test-cases.
I hope the inclusion of gfortran-dg.exp in
fortran-torture.exp is not controversial, but there's no
fortran-specific testsuite file common to dg and
classic-torture and also this placement is still in the
"Utility routines" section of gfortran-dg.exp. (BTW, the C
torture-tests changed to the dg framework some time ago - no
more .x-files there and dg-directives actually work - there
are some in gfortran.fortran-torture that are apparently
ignored!)
There's one further cleanup possible, removing the manual
removal in open_errors_2.f90 (which should have used
"target", not "build").
Works for (no regressions, manual check verifies
functionality) cris-elf as well as native x86_64-linux-gnu.
Ok to commit?
-- >8 --
PR testsuite/116701 shows that left-behind files from
unnamed gfortran open statements (named unit.N, where N =
unit number) can interfere with the result of a subsequent
run. While that's unlikely to happen for a "real" fortran
target or a test with a deleting close-statement, test-cases
should not rely on previous test-cases passing and not
execute along different execution paths depending on earlier
runs, even if the difference is benevolent.
Most but not all fortran test-cases go through
gfortran-dg-runtest (gfortran.dg) or fortran-torture-execute
(gfortran.fortran-torture). However, the exceptions, with
more complex framework and call-chains, either don't run or
don't have open-statements, so a more complex solution
doesn't seem worthwhile. If test-cases with open-statements
are added later to those parts of the test-suite, calls to
gfortran-dg-rmunits at the right spot may be added or worst
case, "manual" cleanup-calls added, like:
! { dg-final { remote_file target delete "fort.10" } }
PR testsuite/116701
* lib/gfortran-dg.exp (gfortran-dg-rmunits): New proc.
(gfortran-dg-runtest): Call gfortran-dg-rmunits after executing test.
* lib/fortran-torture.exp: Include gfortran-dg.exp.
(fortran-torture-execute): Call gfortran-dg-rmunits after
executing test.
---
gcc/testsuite/lib/fortran-torture.exp | 3 +++
gcc/testsuite/lib/gfortran-dg.exp | 23 +++++++++++++++++++++++
2 files changed, 26 insertions(+)
diff --git a/gcc/testsuite/lib/fortran-torture.exp
b/gcc/testsuite/lib/fortran-torture.exp
index 66f5bc822232..c45db285f867 100644
--- a/gcc/testsuite/lib/fortran-torture.exp
+++ b/gcc/testsuite/lib/fortran-torture.exp
@@ -23,6 +23,7 @@
load_lib target-supports.exp
load_lib fortran-modules.exp
load_lib target-utils.exp
+load_lib gfortran-dg.exp
# Return the list of options to use for fortran torture tests.
# The default option list can be overridden by
@@ -332,6 +333,8 @@ proc fortran-torture-execute { src } {
catch { remote_file build delete $executable }
}
$status "$testcase execution, $option"
+
+ gfortran-dg-rmunits $src
}
cleanup-modules ""
}
diff --git a/gcc/testsuite/lib/gfortran-dg.exp
b/gcc/testsuite/lib/gfortran-dg.exp
index fcba95dc3961..eb54844607dc 100644
--- a/gcc/testsuite/lib/gfortran-dg.exp
+++ b/gcc/testsuite/lib/gfortran-dg.exp
@@ -160,6 +160,7 @@ proc gfortran-dg-runtest { testcases flags
default-extra-flags } {
foreach flags_t $option_list {
verbose "Testing $nshort, $flags $flags_t" 1
dg-test $test "$flags $flags_t" ${default-extra-flags}
+ gfortran-dg-rmunits $test
cleanup-modules ""
}
}
@@ -233,3 +234,25 @@ proc gfortran-dg-debug-runtest { target_compile trivial
opt_opts testcases } {
}
}
}
+
+# If the code has any "open" statements for numbered units, make sure
+# no corresponding output file remains. Redundant remove operations
+# are ok.
+
+proc gfortran-dg-rmunits { src } {
+ set openpat {open *\( *(?:unit *= *)?([0-9]+)}
+ set openmatches [igrep $src $openpat]
+ if {![string match "" $openmatches]} {
+ # verbose -log "Found \"$openmatches\""
+ set deleted_units {}
+ foreach openmatch $openmatches {
+ regexp -nocase -- "$openpat" $openmatch match unit
+ if {[lsearch $deleted_units $unit] < 0} {
+ set rmfile "fort.$unit"
+ verbose -log "Deleting $rmfile"
+ remote_file target delete "fort.$unit"
+ lappend deleted_units $unit
+ }
+ }
+ }
+}
--
2.30.2
