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authorSteven G. Kargl <kargl@gcc.gnu.org>2018-05-10 22:45:38 +0000
committerSteven G. Kargl <kargl@gcc.gnu.org>2018-05-10 22:45:38 +0000
commit14ee7de064f757c7677b906010f7e67e702b62c7 (patch)
treee5914f4160f3bd751f30a1d7357481e8697dd47e
parent7b24db31a41695cfd4adcee73f5edd73ae001517 (diff)
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re PR fortran/85521 (ICE in gfc_resolve_character_array_constructor, at fortran/array.c:2049)
2018-05-10 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/85521 * array.c (gfc_resolve_character_array_constructor): Substrings with upper bound smaller than lower bound are zero length strings. 2018-05-10 Steven G. Kargl <kargl@gcc.gnu.org> PR fortran/85521 * gfortran.dg/pr85521_1.f90: New test. * gfortran.dg/pr85521_2.f90: New test. From-SVN: r260139
-rw-r--r--gcc/fortran/ChangeLog6
-rw-r--r--gcc/fortran/array.c3
-rw-r--r--gcc/testsuite/ChangeLog6
-rw-r--r--gcc/testsuite/gfortran.dg/pr85521_1.f908
-rw-r--r--gcc/testsuite/gfortran.dg/pr85521_2.f908
5 files changed, 30 insertions, 1 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index aedcb2d..09d015c 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,5 +1,11 @@
2018-05-10 Steven G. Kargl <kargl@gcc.gnu.org>
+ PR fortran/85521
+ * array.c (gfc_resolve_character_array_constructor): Substrings
+ with upper bound smaller than lower bound are zero length strings.
+
+2018-05-10 Steven G. Kargl <kargl@gcc.gnu.org>
+
PR fortran/70870
* data.c (gfc_assign_data_value): Check that a data object does
not also have default initialization.
diff --git a/gcc/fortran/array.c b/gcc/fortran/array.c
index 58d611ba..052775f 100644
--- a/gcc/fortran/array.c
+++ b/gcc/fortran/array.c
@@ -2046,7 +2046,8 @@ got_charlen:
else
return true;
- gcc_assert (current_length != -1);
+ if (current_length < 0)
+ current_length = 0;
if (found_length == -1)
found_length = current_length;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 64014c4..73f74e0 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,5 +1,11 @@
2018-05-10 Steven G. Kargl <kargl@gcc.gnu.org>
+ PR fortran/85521
+ * gfortran.dg/pr85521_1.f90: New test.
+ * gfortran.dg/pr85521_2.f90: New test.
+
+2018-05-10 Steven G. Kargl <kargl@gcc.gnu.org>
+
PR fortran/70870
* gfortran.dg/pr70870_1.f90: New test.
diff --git a/gcc/testsuite/gfortran.dg/pr85521_1.f90 b/gcc/testsuite/gfortran.dg/pr85521_1.f90
new file mode 100644
index 0000000..57e4620
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr85521_1.f90
@@ -0,0 +1,8 @@
+! { dg-do compile }
+! PR fortran/85521
+program p
+ character(3) :: c = 'abc'
+ character(3) :: z(1)
+ z = [ c(:-1) ]
+ print *, z
+end
diff --git a/gcc/testsuite/gfortran.dg/pr85521_2.f90 b/gcc/testsuite/gfortran.dg/pr85521_2.f90
new file mode 100644
index 0000000..737b61a
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr85521_2.f90
@@ -0,0 +1,8 @@
+! { dg-do compile }
+! PR fortran/85521
+program p
+ character(3) :: c = 'abc'
+ character(3) :: z(1)
+ z = [ c(:-2) ]
+ print *, z
+end