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authorSteven G. Kargl <kargl@gcc.gnu.org>2015-10-02 00:49:28 +0000
committerSteven G. Kargl <kargl@gcc.gnu.org>2015-10-02 00:49:28 +0000
commit220ab6b433ee3a360c52032445676758991ed7d9 (patch)
tree02754e54539199603e6cddc52673d2a6e442426e /gcc
parentb64c3d0696c572b7fc21fecfd78b9aaadf2b4892 (diff)
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re PR fortran/66979 (gfortran internal compiler error with malformed FLUSH statement)
2015-10-01 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/66979 * io.c (gfc_resolve_filepos): Check for a UNIT number. Add a nearby missing 'return false'. 2015-10-01 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/66979 gfortran.dg/pr66979.f90: new test. From-SVN: r228364
Diffstat (limited to 'gcc')
-rw-r--r--gcc/fortran/ChangeLog6
-rw-r--r--gcc/fortran/io.c9
-rw-r--r--gcc/testsuite/ChangeLog5
-rw-r--r--gcc/testsuite/gfortran.dg/pr66979.f907
4 files changed, 27 insertions, 0 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 2a306e5..9e6f2bd 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,5 +1,11 @@
2015-10-01 Steven G. Kargl <kargl@gcc.gnu.org>
+ PR fortran/66979
+ * io.c (gfc_resolve_filepos): Check for a UNIT number. Add a nearby
+ missing 'return false'.
+
+2015-10-01 Steven G. Kargl <kargl@gcc.gnu.org>
+
PR fortran/67616
* primary.c (gfc_match_structure_constructor): Use a possibly
host-associated symtree to prevent ICE.
diff --git a/gcc/fortran/io.c b/gcc/fortran/io.c
index cff2b68..e5d68fb 100644
--- a/gcc/fortran/io.c
+++ b/gcc/fortran/io.c
@@ -2515,12 +2515,21 @@ gfc_resolve_filepos (gfc_filepos *fp)
if (!gfc_reference_st_label (fp->err, ST_LABEL_TARGET))
return false;
+ if (!fp->unit && (fp->iostat || fp->iomsg))
+ {
+ locus where;
+ where = fp->iostat ? fp->iostat->where : fp->iomsg->where;
+ gfc_error ("UNIT number missing in statement at %L", &where);
+ return false;
+ }
+
if (fp->unit->expr_type == EXPR_CONSTANT
&& fp->unit->ts.type == BT_INTEGER
&& mpz_sgn (fp->unit->value.integer) < 0)
{
gfc_error ("UNIT number in statement at %L must be non-negative",
&fp->unit->where);
+ return false;
}
return true;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index bf9b3e4..ea748b9 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,10 @@
2015-10-01 Steven G. Kargl <kargl@gcc.gnu.org>
+ PR fortran/66979
+ gfortran.dg/pr66979.f90: new test.
+
+2015-10-01 Steven G. Kargl <kargl@gcc.gnu.org>
+
PR fortran/67616
* gfortran.dg/pr67616.f90: New test.
diff --git a/gcc/testsuite/gfortran.dg/pr66979.f90 b/gcc/testsuite/gfortran.dg/pr66979.f90
new file mode 100644
index 0000000..c102e91
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr66979.f90
@@ -0,0 +1,7 @@
+! { dg-do compile }
+! PR fortran/66979
+program p
+ implicit none
+ integer::i
+ flush (iostat=i) ! { dg-error "UNIT number missing" }
+end program p