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-rw-r--r--gcc/fortran/ChangeLog9
-rw-r--r--gcc/fortran/expr.c14
-rw-r--r--gcc/testsuite/ChangeLog7
-rw-r--r--gcc/testsuite/gfortran.dg/inquiry_type_ref_5.f9029
4 files changed, 53 insertions, 6 deletions
diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 7e67390..dee20f6 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,12 @@
+2019-12-21  Paul Thomas  <pault@gcc.gnu.org>
+
+ PR fortran/92753
+ * expr.c (find_inquiry_ref): Catch INQUIRY_LEN case, where the
+ temporary expression has been converted to a constant and make
+ the new expression accordingly. Correct the error in INQUIRY_RE
+ and INQUIRY_IM cases. The original rather than the resolved
+ expression was being used as the source in mpfr_set.
+
2019-12-20 Jakub Jelinek <jakub@redhat.com>
PR middle-end/91512
diff --git a/gcc/fortran/expr.c b/gcc/fortran/expr.c
index fc67a9d..aea4af0 100644
--- a/gcc/fortran/expr.c
+++ b/gcc/fortran/expr.c
@@ -1787,11 +1787,15 @@ find_inquiry_ref (gfc_expr *p, gfc_expr **newp)
if (!gfc_notify_std (GFC_STD_F2003, "LEN part_ref at %C"))
goto cleanup;
- if (!tmp->ts.u.cl->length
- || tmp->ts.u.cl->length->expr_type != EXPR_CONSTANT)
+ if (tmp->ts.u.cl->length
+ && tmp->ts.u.cl->length->expr_type == EXPR_CONSTANT)
+ *newp = gfc_copy_expr (tmp->ts.u.cl->length);
+ else if (tmp->expr_type == EXPR_CONSTANT)
+ *newp = gfc_get_int_expr (gfc_default_integer_kind,
+ NULL, tmp->value.character.length);
+ else
goto cleanup;
- *newp = gfc_copy_expr (tmp->ts.u.cl->length);
break;
case INQUIRY_KIND:
@@ -1814,7 +1818,7 @@ find_inquiry_ref (gfc_expr *p, gfc_expr **newp)
*newp = gfc_get_constant_expr (BT_REAL, tmp->ts.kind, &tmp->where);
mpfr_set ((*newp)->value.real,
- mpc_realref (p->value.complex), GFC_RND_MODE);
+ mpc_realref (tmp->value.complex), GFC_RND_MODE);
break;
case INQUIRY_IM:
@@ -1826,7 +1830,7 @@ find_inquiry_ref (gfc_expr *p, gfc_expr **newp)
*newp = gfc_get_constant_expr (BT_REAL, tmp->ts.kind, &tmp->where);
mpfr_set ((*newp)->value.real,
- mpc_imagref (p->value.complex), GFC_RND_MODE);
+ mpc_imagref (tmp->value.complex), GFC_RND_MODE);
break;
}
tmp = gfc_copy_expr (*newp);
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 8ec9fc2..1f1dec5 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2019-12-21  Paul Thomas  <pault@gcc.gnu.org>
+
+ PR fortran/92753
+ * gfortran.dg/inquiry_type_ref_5.f90 : New test.
+
2019-12-21 Martin Jambor <mjambor@suse.cz>
PR ipa/93015
@@ -37,7 +42,7 @@
2019-12-20 Stam Markianos-Wright <stam.markianos-wright@arm.com>
- * lib/target-supports.exp
+ * lib/target-supports.exp
(check_effective_target_arm_v8_2a_i8mm_ok_nocache): New.
(check_effective_target_arm_v8_2a_i8mm_ok): New.
(add_options_for_arm_v8_2a_i8mm): New.
diff --git a/gcc/testsuite/gfortran.dg/inquiry_type_ref_5.f90 b/gcc/testsuite/gfortran.dg/inquiry_type_ref_5.f90
new file mode 100644
index 0000000..b27943a
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/inquiry_type_ref_5.f90
@@ -0,0 +1,29 @@
+! { dg-do run }
+!
+! Test the fix for pr92753
+!
+! Contributed by Gerhardt Steinmetz <gscfq@t-online.de>
+!
+module m
+ type t
+ character(3) :: c
+ end type
+ type u
+ complex :: z
+ end type
+ type(t), parameter :: x = t ('abc')
+ integer, parameter :: l = x%c%len ! Used to ICE
+
+ type(u), parameter :: z = u ((42.0,-42.0))
+end
+program p
+ use m
+ call s (x%c%len) ! ditto
+
+ if (int (z%z%re) .ne. 42) stop 1 ! Produced wrong code and
+ if (int (z%z%re) .ne. -int (z%z%im)) stop 2 ! runtime seg fault
+contains
+ subroutine s(n)
+ if (n .ne. l) stop 3
+ end
+end