From: Jakub Jelinek <jakub@redhat.com>
Date: Fri, 20 May 2016 18:49:24 +0000 (+0200)
Subject: re PR fortran/71204 (ICE with -O0 in expand_expr_real_1, at expr.c:9651)
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=4f028369d00f8cc3a7dc26d4401a3fa238960a54;p=gcc.git

re PR fortran/71204 (ICE with -O0 in expand_expr_real_1, at expr.c:9651)

	PR fortran/71204
	* frontend-passes.c (realloc_string_callback): Clear inserted_block
	and changed_statement before calling create_var.

	* gfortran.dg/pr71204.f90: New test.

From-SVN: r236525
---

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 704c1f169f2..d32c7d5100a 100644
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,9 @@
+2016-05-20  Jakub Jelinek  <jakub@redhat.com>
+
+	PR fortran/71204
+	* frontend-passes.c (realloc_string_callback): Clear inserted_block
+	and changed_statement before calling create_var.
+
 2016-05-15  Harald Anlauf  <anlauf@gmx.de>
 
 	PR fortran/69603
diff --git a/gcc/fortran/frontend-passes.c b/gcc/fortran/frontend-passes.c
index 9d724dec0cd..37c42bb5e34 100644
--- a/gcc/fortran/frontend-passes.c
+++ b/gcc/fortran/frontend-passes.c
@@ -174,8 +174,10 @@ realloc_string_callback (gfc_code **c, int *walk_subtrees ATTRIBUTE_UNUSED,
 
   if (!gfc_check_dependency (expr1, expr2, true))
     return 0;
-  
+
   current_code = c;
+  inserted_block = NULL;
+  changed_statement = NULL;
   n = create_var (expr2, "trim");
   co->expr2 = n;
   return 0;
diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index 919c1241f3a..d5122e82cc1 100644
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2016-05-20  Jakub Jelinek  <jakub@redhat.com>
+
+	PR fortran/71204
+	* gfortran.dg/pr71204.f90: New test.
+
 2016-05-20  Cesar Philippidis  <cesar@codesourcery.com>
 
 	* gcc.target/nvptx/sincos.c: New test.
diff --git a/gcc/testsuite/gfortran.dg/pr71204.f90 b/gcc/testsuite/gfortran.dg/pr71204.f90
new file mode 100644
index 00000000000..1d1ee5c34a1
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/pr71204.f90
@@ -0,0 +1,17 @@
+! PR fortran/71204
+! { dg-do compile }
+! { dg-options "-O0" }
+
+module pr71204
+  character(10), allocatable :: z(:)
+end module
+
+subroutine s1
+  use pr71204
+  z(2) = z(1)
+end
+
+subroutine s2
+  use pr71204
+  z(2) = z(1)
+end