2011-11-25 Tobias Burnus <burnus@net-b.de>

        PR fortran/51302
        * trans-stmt.c (gfc_trans_simple_do): Add a fold_convert.

2011-11-25  Tobias Burnus  <burnus@net-b.de>

        PR fortran/51302
        * gfortran.dg/volatile13.f90: New.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@181724 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index 1831842..22d0fa4 100644 (file)
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,8 @@
+2011-11-25  Tobias Burnus  <burnus@net-b.de>
+
+       PR fortran/51302
+       * trans-stmt.c (gfc_trans_simple_do): Add a fold_convert.
+
 2011-11-24  Tobias Burnus  <burnus@net-b.de>
 
        PR fortran/51218

diff --git a/gcc/fortran/trans-stmt.c b/gcc/fortran/trans-stmt.c
index 0d793f9..b21be45 100644 (file)
--- a/gcc/fortran/trans-stmt.c
+++ b/gcc/fortran/trans-stmt.c
@@ -1259,7 +1259,8 @@ gfc_trans_simple_do (gfc_code * code, stmtblock_t *pblock, tree dovar,
   loc = code->ext.iterator->start->where.lb->location;
 
   /* Initialize the DO variable: dovar = from.  */
-  gfc_add_modify_loc (loc, pblock, dovar, from);
+  gfc_add_modify_loc (loc, pblock, dovar,
+                     fold_convert (TREE_TYPE(dovar), from));
   
   /* Save value for do-tinkering checking. */
   if (gfc_option.rtcheck & GFC_RTCHECK_DO)

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index ff60be0..6ea8225 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2011-11-25  Tobias Burnus  <burnus@net-b.de>
+
+       PR fortran/51302
+       * gfortran.dg/volatile13.f90: New.
+
 2011-11-24  Andrew MacLeod  <amacleod@redhat.com>
 
        PR c/51256

diff --git a/gcc/testsuite/gfortran.dg/volatile13.f90 b/gcc/testsuite/gfortran.dg/volatile13.f90
new file mode 100644 (file)
index 0000000..b933222
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/volatile13.f90
@@ -0,0 +1,11 @@
+! { dg-do compile }
+!
+! PR fortran/51302
+!
+! Volatile DO variable - was ICEing before
+!
+integer, volatile :: i
+integer :: n = 1
+do i = 1, n
+end do
+end