25 files changed, 98 insertions, 74 deletions
diff --git a/ChangeLog b/ChangeLog
index 9b569df10f8..9204d0b7373 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,12 @@
+2015-12-17  Sebastian Pop  <s.pop@samsung.com>
+
+	* Makefile.in: Replace ISL with isl.
+	* Makefile.tpl: Same.
+	* config/isl.m4: Same.
+	* configure.ac: Same.
+	* contrib/download_prerequisites: Same.
+	* configure: Regenerate.
+
 2015-12-17  Andris Pavenis  <andris.pavenis@iki.fi>
 
 	* MAINTAINERS (Write After Approval): Add Myself.
diff --git a/Makefile.in b/Makefile.in
index cb62c35ade5..e9b59502a2c 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -312,7 +312,7 @@ NORMAL_TARGET_EXPORTS = \
 HOST_GMPLIBS = @gmplibs@
 HOST_GMPINC = @gmpinc@
 
-# Where to find ISL
+# Where to find isl
 HOST_ISLLIBS = @isllibs@
 HOST_ISLINC = @islinc@
 
diff --git a/Makefile.tpl b/Makefile.tpl
index 693e4d5c58a..f7bb77e6d67 100644
--- a/Makefile.tpl
+++ b/Makefile.tpl
@@ -315,7 +315,7 @@ NORMAL_TARGET_EXPORTS = \
 HOST_GMPLIBS = @gmplibs@
 HOST_GMPINC = @gmpinc@
 
-# Where to find ISL
+# Where to find isl
 HOST_ISLLIBS = @isllibs@
 HOST_ISLINC = @islinc@
 
diff --git a/config/isl.m4 b/config/isl.m4
index e4e4aab09fa..86ccb94abaf 100644
--- a/config/isl.m4
+++ b/config/isl.m4
@@ -94,7 +94,7 @@ AC_DEFUN([ISL_REQUESTED],
 
 # ISL_CHECK_VERSION ISL_CHECK_VERSION ()
 # ----------------------------------------------------------------
-# Test that ISL contains functionality added to the minimum expected version.
+# Test whether isl contains functionality added to the minimum expected version.
 AC_DEFUN([ISL_CHECK_VERSION],
 [
   if test "${ENABLE_ISL_CHECK}" = yes ; then
diff --git a/configure b/configure
index c3c5cb073df..f5786ed568b 100755
--- a/configure
+++ b/configure
@@ -1549,7 +1549,7 @@ Optional Packages:
   --with-boot-libs=LIBS   libraries for stage2 and later
   --with-boot-ldflags=FLAGS
                           linker flags for stage2 and later
-  --with-isl=PATH         Specify prefix directory for the installed ISL
+  --with-isl=PATH         Specify prefix directory for the installed isl
                           package. Equivalent to
                           --with-isl-include=PATH/include plus
                           --with-isl-lib=PATH/lib
@@ -5943,7 +5943,7 @@ fi
 
 
 
-# GCC GRAPHITE dependency ISL.
+# GCC GRAPHITE dependency isl.
 # Basic setup is inlined here, actual checks are in config/isl.m4
 
 
@@ -5956,7 +5956,7 @@ fi
 # Treat --without-isl as a request to disable
 # GRAPHITE support and skip all following checks.
 if test "x$with_isl" != "xno"; then
-  # Check for ISL
+  # Check for isl
 
 
 # Check whether --with-isl-include was given.
@@ -6079,13 +6079,13 @@ $as_echo "recommended isl version is 0.15, minimum required isl version 0.14 is
     && test "x${isllibs}" = x \
     && test "x${islinc}" = x ; then
 
-    as_fn_error "Unable to find a usable ISL.  See config.log for details." "$LINENO" 5
+    as_fn_error "Unable to find a usable isl.  See config.log for details." "$LINENO" 5
   fi
 
 
 fi
 
-# If the ISL check failed, disable builds of in-tree variant of ISL
+# If the isl check failed, disable builds of in-tree variant of isl
 if test "x$with_isl" = xno ||
    test "x$gcc_cv_isl" = xno; then
   noconfigdirs="$noconfigdirs isl"
diff --git a/configure.ac b/configure.ac
index a6998ff2a53..a719e037a0d 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1773,31 +1773,31 @@ AC_ARG_WITH(boot-ldflags,
  fi])
 AC_SUBST(poststage1_ldflags)
 
-# GCC GRAPHITE dependency ISL.
+# GCC GRAPHITE dependency isl.
 # Basic setup is inlined here, actual checks are in config/isl.m4
 
 AC_ARG_WITH(isl,
   [AS_HELP_STRING(
    [--with-isl=PATH],
-   [Specify prefix directory for the installed ISL package.
+   [Specify prefix directory for the installed isl package.
     Equivalent to --with-isl-include=PATH/include
     plus --with-isl-lib=PATH/lib])])
 
 # Treat --without-isl as a request to disable
 # GRAPHITE support and skip all following checks.
 if test "x$with_isl" != "xno"; then
-  # Check for ISL
+  # Check for isl
   dnl Provide configure switches and initialize islinc & isllibs
   dnl with user input.
   ISL_INIT_FLAGS
-  dnl The versions of ISL that work for Graphite
+  dnl The versions of isl that work for Graphite
   ISL_CHECK_VERSION()
-  dnl Only execute fail-action, if ISL has been requested.
+  dnl Only execute fail-action, if isl has been requested.
   ISL_IF_FAILED([
-    AC_MSG_ERROR([Unable to find a usable ISL.  See config.log for details.])])
+    AC_MSG_ERROR([Unable to find a usable isl.  See config.log for details.])])
 fi
 
-# If the ISL check failed, disable builds of in-tree variant of ISL
+# If the isl check failed, disable builds of in-tree variant of isl
 if test "x$with_isl" = xno ||
    test "x$gcc_cv_isl" = xno; then
   noconfigdirs="$noconfigdirs isl"
diff --git a/contrib/download_prerequisites b/contrib/download_prerequisites
index a685a1d56eb..cf97ec9daa8 100755
--- a/contrib/download_prerequisites
+++ b/contrib/download_prerequisites
@@ -20,7 +20,7 @@
 # along with this program. If not, see http://www.gnu.org/licenses/.
 
 # If you want to disable Graphite loop optimizations while building GCC,
-# DO NOT set GRAPHITE_LOOP_OPT as yes so that the ISL package will not
+# DO NOT set GRAPHITE_LOOP_OPT as yes so that the isl package will not
 # be downloaded.
 GRAPHITE_LOOP_OPT=yes
 
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 8f1abee63cc..82a836d177c 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,5 +1,25 @@
 2015-12-17  Sebastian Pop  <s.pop@samsung.com>
 
+	* Makefile.in: Replace ISL with isl.
+	* common.opt: Same.
+	* configure: Regenerate.
+	* configure.ac: Same.
+	* doc/install.texi: Same.
+	* doc/invoke.texi: Same.
+	* graphite-isl-ast-to-gimple.c: Same.
+	* graphite-scop-detection.c: Same.
+	* graphite-sese-to-poly.c: Same.
+	* graphite.c: Same.
+	* graphite.h: Same.
+	* params.def: Same.
+	* testsuite/gcc.dg/graphite/fuse-1.c: Same.
+	* testsuite/gcc.dg/graphite/fuse-2.c: Same.
+	* testsuite/gcc.dg/graphite/interchange-1.c: Same.
+	* testsuite/gcc.dg/graphite/pr35356-1.c: Same.
+	* toplev.c: Same.
+
+2015-12-17  Sebastian Pop  <s.pop@samsung.com>
+
 	* graphite-dependences.c: Move all isl include files to...
 	* graphite-isl-ast-to-gimple.c: Same.
 	* graphite-optimize-isl.c: Same.
diff --git a/gcc/Makefile.in b/gcc/Makefile.in
index 1f698798aa2..726fcbb2148 100644
--- a/gcc/Makefile.in
+++ b/gcc/Makefile.in
@@ -365,7 +365,7 @@ ZLIBINC = @zlibinc@
 GMPLIBS = @GMPLIBS@
 GMPINC = @GMPINC@
 
-# How to find ISL
+# How to find isl.
 ISLLIBS = @ISLLIBS@
 ISLINC = @ISLINC@
 
diff --git a/gcc/common.opt b/gcc/common.opt
index d66013aa561..23f394d8af6 100644
--- a/gcc/common.opt
+++ b/gcc/common.opt
@@ -1406,7 +1406,7 @@ Does nothing. Preserved for backward compatibility.
 
 floop-nest-optimize
 Common Report Var(flag_loop_nest_optimize) Optimization
-Enable the ISL based loop nest optimizer.
+Enable the loop nest optimizer.
 
 fstrict-volatile-bitfields
 Common Report Var(flag_strict_volatile_bitfields) Init(-1) Optimization
diff --git a/gcc/configure b/gcc/configure
index 31407efff91..e6eb9999559 100755
--- a/gcc/configure
+++ b/gcc/configure
@@ -1750,8 +1750,8 @@ Some influential environment variables:
   CPP         C preprocessor
   GMPLIBS     How to link GMP
   GMPINC      How to find GMP include files
-  ISLLIBS     How to link ISL
-  ISLINC      How to find ISL include files
+  ISLLIBS     How to link isl
+  ISLINC      How to find isl include files
 
 Use these variables to override the choices made by `configure' or to help
 it to find libraries and programs with nonstandard names/locations.
@@ -28932,10 +28932,8 @@ $as_echo "#define HAVE_isl 1" >>confdefs.h
 
 fi
 
-# Check whether isl_schedule_constraints_compute_schedule is available;
-# it's new in ISL-0.13.
 # Check whether isl_options_set_schedule_serialize_sccs is available;
-# it's new in ISL-0.15.
+# it's new in isl 0.15.
 if test "x${ISLLIBS}" != "x" ; then
   saved_CXXFLAGS="$CXXFLAGS"
   CXXFLAGS="$CXXFLAGS $ISLINC"
diff --git a/gcc/configure.ac b/gcc/configure.ac
index 67c05264944..3aa2737296c 100644
--- a/gcc/configure.ac
+++ b/gcc/configure.ac
@@ -5908,16 +5908,14 @@ fi
 AC_ARG_VAR(GMPLIBS,[How to link GMP])
 AC_ARG_VAR(GMPINC,[How to find GMP include files])
 
-AC_ARG_VAR(ISLLIBS,[How to link ISL])
-AC_ARG_VAR(ISLINC,[How to find ISL include files])
+AC_ARG_VAR(ISLLIBS,[How to link isl])
+AC_ARG_VAR(ISLINC,[How to find isl include files])
 if test "x${ISLLIBS}" != "x" ; then 
    AC_DEFINE(HAVE_isl, 1, [Define if isl is in use.])
 fi
 
-# Check whether isl_schedule_constraints_compute_schedule is available;
-# it's new in ISL-0.13.
 # Check whether isl_options_set_schedule_serialize_sccs is available;
-# it's new in ISL-0.15.
+# it's new in isl 0.15.
 if test "x${ISLLIBS}" != "x" ; then
   saved_CXXFLAGS="$CXXFLAGS"
   CXXFLAGS="$CXXFLAGS $ISLINC"
diff --git a/gcc/doc/install.texi b/gcc/doc/install.texi
index 81cadb5ed59..7f4c414712a 100644
--- a/gcc/doc/install.texi
+++ b/gcc/doc/install.texi
@@ -383,14 +383,14 @@ installed but it is not in your default library search path, the
 @option{--with-mpc} configure option should be used.  See also
 @option{--with-mpc-lib} and @option{--with-mpc-include}.
 
-@item ISL Library version 0.15 or 0.14.
+@item isl Library version 0.15 or 0.14.
 
 Necessary to build GCC with the Graphite loop optimizations.
 It can be downloaded from @uref{ftp://gcc.gnu.org/pub/gcc/infrastructure/}.
-If an ISL source distribution is found
+If an isl source distribution is found
 in a subdirectory of your GCC sources named @file{isl}, it will be
 built together with GCC.  Alternatively, the @option{--with-isl} configure
-option should be used if ISL is not installed in your default library
+option should be used if isl is not installed in your default library
 search path.
 
 @end table
@@ -1850,7 +1850,7 @@ a cross compiler, they will not be used to configure target libraries.
 @item --with-isl=@var{pathname}
 @itemx --with-isl-include=@var{pathname}
 @itemx --with-isl-lib=@var{pathname}
-If you do not have the ISL library installed in a standard location and you
+If you do not have the isl library installed in a standard location and you
 want to build GCC, you can explicitly specify the directory where it is
 installed (@samp{--with-isl=@/@var{islinstalldir}}). The
 @option{--with-isl=@/@var{islinstalldir}} option is shorthand for
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi
index 022cc09a002..cdc5d2c4e19 100644
--- a/gcc/doc/invoke.texi
+++ b/gcc/doc/invoke.texi
@@ -8953,12 +8953,12 @@ Enable the identity transformation for graphite.  For every SCoP we generate
 the polyhedral representation and transform it back to gimple.  Using
 @option{-fgraphite-identity} we can check the costs or benefits of the
 GIMPLE -> GRAPHITE -> GIMPLE transformation.  Some minimal optimizations
-are also performed by the code generator ISL, like index splitting and
+are also performed by the code generator isl, like index splitting and
 dead code elimination in loops.
 
 @item -floop-nest-optimize
 @opindex floop-nest-optimize
-Enable the ISL based loop nest optimizer.  This is a generic loop nest
+Enable the isl based loop nest optimizer.  This is a generic loop nest
 optimizer based on the Pluto optimization algorithms.  It calculates a loop
 structure optimized for data-locality and parallelism.  This option
 is experimental.
diff --git a/gcc/graphite-isl-ast-to-gimple.c b/gcc/graphite-isl-ast-to-gimple.c
index 612a4c1e9d2..795232aa096 100644
--- a/gcc/graphite-isl-ast-to-gimple.c
+++ b/gcc/graphite-isl-ast-to-gimple.c
@@ -1,4 +1,4 @@
-/* Translation of ISL AST to Gimple.
+/* Translation of isl AST to Gimple.
    Copyright (C) 2014-2015 Free Software Foundation, Inc.
    Contributed by Roman Gareev <gareevroman@gmail.com>.
 
@@ -54,7 +54,6 @@ along with GCC; see the file COPYING3.  If not see
 #include "cfganal.h"
 #include "value-prof.h"
 #include "graphite.h"
-
 #include <map>
 
 /* We always try to use signed 128 bit types, but fall back to smaller types
@@ -99,12 +98,12 @@ graphite_verify (void)
   checking_verify_loop_closed_ssa (true);
 }
 
-/* IVS_PARAMS maps ISL's scattering and parameter identifiers
+/* IVS_PARAMS maps isl's scattering and parameter identifiers
    to corresponding trees.  */
 
 typedef std::map<isl_id *, tree> ivs_params;
 
-/* Free all memory allocated for ISL's identifiers.  */
+/* Free all memory allocated for isl's identifiers.  */
 
 void ivs_params_clear (ivs_params &ip)
 {
@@ -146,7 +145,7 @@ class translate_isl_ast_to_gimple
     : region (r), codegen_error (false)
     { }
 
-  /* Translates an ISL AST node NODE to GCC representation in the
+  /* Translates an isl AST node NODE to GCC representation in the
      context of a SESE.  */
   edge translate_isl_ast (loop_p context_loop, __isl_keep isl_ast_node *node,
 			  edge next_e, ivs_params &ip);
@@ -202,7 +201,7 @@ class translate_isl_ast_to_gimple
   tree nary_op_to_tree (tree type, __isl_take isl_ast_expr *expr,
 			ivs_params &ip);
 
-  /* Converts an ISL AST expression E back to a GCC expression tree of
+  /* Converts an isl AST expression E back to a GCC expression tree of
      type TYPE.  */
   tree gcc_expression_from_isl_expression (tree type,
 					   __isl_take isl_ast_expr *,
@@ -234,7 +233,7 @@ class translate_isl_ast_to_gimple
      induction variable for the new LOOP.  New LOOP is attached to CFG
      starting at ENTRY_EDGE.  LOOP is inserted into the loop tree and
      becomes the child loop of the OUTER_LOOP.  NEWIVS_INDEX binds
-     ISL's scattering name to the induction variable created for the
+     isl's scattering name to the induction variable created for the
      loop of STMT.  The new induction variable is inserted in the NEWIVS
      vector and is of type TYPE.  */
   struct loop *graphite_create_new_loop (edge entry_edge,
@@ -258,7 +257,7 @@ class translate_isl_ast_to_gimple
 				       tree *type,
 				       tree *lb, tree *ub, ivs_params &ip);
 
-  /* Creates a new if region corresponding to ISL's cond.  */
+  /* Creates a new if region corresponding to isl's cond.  */
   edge graphite_create_new_guard (edge entry_edge,
 				  __isl_take isl_ast_expr *if_cond,
 				  ivs_params &ip);
@@ -277,7 +276,7 @@ class translate_isl_ast_to_gimple
 
   void translate_pending_phi_nodes (void);
 
-  /* Add ISL's parameter identifiers and corresponding trees to ivs_params.  */
+  /* Add isl's parameter identifiers and corresponding trees to ivs_params.  */
 
   void add_parameters_to_ivs_params (scop_p scop, ivs_params &ip);
 
@@ -497,7 +496,7 @@ private:
   /* The region to be translated.  */
   sese_info_p region;
 
-  /* This flag is set when an error occurred during the translation of ISL AST
+  /* This flag is set when an error occurred during the translation of isl AST
      to Gimple.  */
   bool codegen_error;
 
@@ -583,7 +582,7 @@ binary_op_to_tree (tree type, __isl_take isl_ast_expr *expr, ivs_params &ip)
       return fold_build2 (MULT_EXPR, type, tree_lhs_expr, tree_rhs_expr);
 
     case isl_ast_op_div:
-      /* As ISL operates on arbitrary precision numbers, we may end up with
+      /* As isl operates on arbitrary precision numbers, we may end up with
 	 division by 2^64 that is folded to 0.  */
       if (integer_zerop (tree_rhs_expr))
 	{
@@ -593,7 +592,7 @@ binary_op_to_tree (tree type, __isl_take isl_ast_expr *expr, ivs_params &ip)
       return fold_build2 (EXACT_DIV_EXPR, type, tree_lhs_expr, tree_rhs_expr);
 
     case isl_ast_op_pdiv_q:
-      /* As ISL operates on arbitrary precision numbers, we may end up with
+      /* As isl operates on arbitrary precision numbers, we may end up with
 	 division by 2^64 that is folded to 0.  */
       if (integer_zerop (tree_rhs_expr))
 	{
@@ -603,11 +602,11 @@ binary_op_to_tree (tree type, __isl_take isl_ast_expr *expr, ivs_params &ip)
       return fold_build2 (TRUNC_DIV_EXPR, type, tree_lhs_expr, tree_rhs_expr);
 
 #if HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS
-    /* ISL-0.15 or later.  */
+    /* isl 0.15 or later.  */
     case isl_ast_op_zdiv_r:
 #endif
     case isl_ast_op_pdiv_r:
-      /* As ISL operates on arbitrary precision numbers, we may end up with
+      /* As isl operates on arbitrary precision numbers, we may end up with
 	 division by 2^64 that is folded to 0.  */
       if (integer_zerop (tree_rhs_expr))
 	{
@@ -617,7 +616,7 @@ binary_op_to_tree (tree type, __isl_take isl_ast_expr *expr, ivs_params &ip)
       return fold_build2 (TRUNC_MOD_EXPR, type, tree_lhs_expr, tree_rhs_expr);
 
     case isl_ast_op_fdiv_q:
-      /* As ISL operates on arbitrary precision numbers, we may end up with
+      /* As isl operates on arbitrary precision numbers, we may end up with
 	 division by 2^64 that is folded to 0.  */
       if (integer_zerop (tree_rhs_expr))
 	{
@@ -777,7 +776,7 @@ gcc_expression_from_isl_expr_op (tree type, __isl_take isl_ast_expr *expr,
     case isl_ast_op_pdiv_r:
     case isl_ast_op_fdiv_q:
 #if HAVE_ISL_OPTIONS_SET_SCHEDULE_SERIALIZE_SCCS
-    /* ISL-0.15 or later.  */
+    /* isl 0.15 or later.  */
     case isl_ast_op_zdiv_r:
 #endif
     case isl_ast_op_and:
@@ -802,7 +801,7 @@ gcc_expression_from_isl_expr_op (tree type, __isl_take isl_ast_expr *expr,
   return NULL_TREE;
 }
 
-/* Converts an ISL AST expression E back to a GCC expression tree of
+/* Converts an isl AST expression E back to a GCC expression tree of
    type TYPE.  */
 
 tree
@@ -838,7 +837,7 @@ gcc_expression_from_isl_expression (tree type, __isl_take isl_ast_expr *expr,
    induction variable for the new LOOP.  New LOOP is attached to CFG
    starting at ENTRY_EDGE.  LOOP is inserted into the loop tree and
    becomes the child loop of the OUTER_LOOP.  NEWIVS_INDEX binds
-   ISL's scattering name to the induction variable created for the
+   isl's scattering name to the induction variable created for the
    loop of STMT.  The new induction variable is inserted in the NEWIVS
    vector and is of type TYPE.  */
 
@@ -1179,7 +1178,7 @@ translate_isl_ast_node_block (loop_p context_loop,
   return next_e;
 }
  
-/* Creates a new if region corresponding to ISL's cond.  */
+/* Creates a new if region corresponding to isl's cond.  */
 
 edge
 translate_isl_ast_to_gimple::
@@ -1224,7 +1223,7 @@ translate_isl_ast_node_if (loop_p context_loop,
   return last_e;
 }
 
-/* Translates an ISL AST node NODE to GCC representation in the
+/* Translates an isl AST node NODE to GCC representation in the
    context of a SESE.  */
 
 edge
@@ -2931,7 +2930,7 @@ translate_isl_ast_to_gimple::copy_bb_and_scalar_dependences (basic_block bb,
 	      return NULL;
 	    }
 
-	  /* In case ISL did some loop peeling, like this:
+	  /* In case isl did some loop peeling, like this:
 
 	       S_8(0);
 	       for (int c1 = 1; c1 <= 5; c1 += 1) {
@@ -3065,7 +3064,7 @@ translate_isl_ast_to_gimple::print_isl_ast_node (FILE *file,
   isl_printer_free (prn);
 }
 
-/* Add ISL's parameter identifiers and corresponding trees to ivs_params.  */
+/* Add isl's parameter identifiers and corresponding trees to ivs_params.  */
 
 void
 translate_isl_ast_to_gimple::add_parameters_to_ivs_params (scop_p scop,
@@ -3263,7 +3262,7 @@ translate_isl_ast_to_gimple::scop_to_isl_ast (scop_p scop, ivs_params &ip)
    the given SCOP.  Return true if code generation succeeded.
 
    FIXME: This is not yet a full implementation of the code generator
-   with ISL ASTs.  Generation of GIMPLE code has to be completed.  */
+   with isl ASTs.  Generation of GIMPLE code has to be completed.  */
 
 bool
 graphite_regenerate_ast_isl (scop_p scop)
@@ -3280,7 +3279,7 @@ graphite_regenerate_ast_isl (scop_p scop)
 
   if (dump_file && (dump_flags & TDF_DETAILS))
     {
-      fprintf (dump_file, "ISL AST generated by ISL: \n");
+      fprintf (dump_file, "AST generated by isl: \n");
       t.print_isl_ast_node (dump_file, root_node, scop->isl_context);
     }
 
diff --git a/gcc/graphite-scop-detection.c b/gcc/graphite-scop-detection.c
index edd7968dfad..dd506b59190 100644
--- a/gcc/graphite-scop-detection.c
+++ b/gcc/graphite-scop-detection.c
@@ -436,7 +436,7 @@ canonicalize_loop_closed_ssa_form (void)
 }
 
 /* Can all ivs be represented by a signed integer?
-   As ISL might generate negative values in its expressions, signed loop ivs
+   As isl might generate negative values in its expressions, signed loop ivs
    are required in the backend.  */
 
 static bool
@@ -1198,7 +1198,7 @@ scop_detection::graphite_can_represent_scev (tree scev)
     return false;
 
   /* We disable the handling of pointer types, because it’s currently not
-     supported by Graphite with the ISL AST generator. SSA_NAME nodes are
+     supported by Graphite with the isl AST generator. SSA_NAME nodes are
      the only nodes, which are disabled in case they are pointers to object
      types, but this can be changed.  */
 
diff --git a/gcc/graphite-sese-to-poly.c b/gcc/graphite-sese-to-poly.c
index a0361f96995..7992c284862 100644
--- a/gcc/graphite-sese-to-poly.c
+++ b/gcc/graphite-sese-to-poly.c
@@ -67,7 +67,7 @@ tree_int_to_gmp (tree t, mpz_t res)
   wi::to_mpz (t, res, TYPE_SIGN (TREE_TYPE (t)));
 }
 
-/* Return an ISL identifier for the polyhedral basic block PBB.  */
+/* Return an isl identifier for the polyhedral basic block PBB.  */
 
 static isl_id *
 isl_id_for_pbb (scop_p s, poly_bb_p pbb)
@@ -260,7 +260,7 @@ extract_affine_mul (scop_p s, tree e, __isl_take isl_space *space)
   return isl_pw_aff_mul (lhs, rhs);
 }
 
-/* Return an ISL identifier from the name of the ssa_name E.  */
+/* Return an isl identifier from the name of the ssa_name E.  */
 
 static isl_id *
 isl_id_for_ssa_name (scop_p s, tree e)
@@ -270,7 +270,7 @@ isl_id_for_ssa_name (scop_p s, tree e)
   return isl_id_alloc (s->isl_context, name1, e);
 }
 
-/* Return an ISL identifier for the data reference DR.  Data references and
+/* Return an isl identifier for the data reference DR.  Data references and
    scalar references get the same isl_id.  They need to be comparable and are
    distinguished through the first dimension, which contains the alias set or
    SSA_NAME_VERSION number.  */
diff --git a/gcc/graphite.c b/gcc/graphite.c
index 1bb47e21101..8d0d24ccf33 100644
--- a/gcc/graphite.c
+++ b/gcc/graphite.c
@@ -336,12 +336,12 @@ graphite_transform_loops (void)
   isl_ctx_free (ctx);
 }
 
-#else /* If ISL is not available: #ifndef HAVE_isl.  */
+#else /* If isl is not available: #ifndef HAVE_isl.  */
 
 static void
 graphite_transform_loops (void)
 {
-  sorry ("Graphite loop optimizations cannot be used (ISL is not available).");
+  sorry ("Graphite loop optimizations cannot be used (isl is not available).");
 }
 
 #endif
diff --git a/gcc/graphite.h b/gcc/graphite.h
index 2565da704cf..83f8191fa96 100644
--- a/gcc/graphite.h
+++ b/gcc/graphite.h
@@ -425,7 +425,7 @@ struct scop
      c = 2a + b  */
   isl_set *param_context;
 
-  /* The context used internally by ISL.  */
+  /* The context used internally by isl.  */
   isl_ctx *isl_context;
 
   /* SCoP final schedule.  */
diff --git a/gcc/params.def b/gcc/params.def
index 41fd8a84da5..9b8216453f3 100644
--- a/gcc/params.def
+++ b/gcc/params.def
@@ -865,7 +865,7 @@ DEFPARAM (PARAM_GRAPHITE_MIN_LOOPS_PER_FUNCTION,
 
 DEFPARAM (PARAM_MAX_ISL_OPERATIONS,
 	  "max-isl-operations",
-	  "maximum number of ISL operations, 0 means unlimited",
+	  "maximum number of isl operations, 0 means unlimited",
 	  350000, 0, 0)
 
 /* Avoid data dependence analysis on very large loops.  */
diff --git a/gcc/testsuite/gcc.dg/graphite/fuse-1.c b/gcc/testsuite/gcc.dg/graphite/fuse-1.c
index 249276c08ab..204d3b20703 100644
--- a/gcc/testsuite/gcc.dg/graphite/fuse-1.c
+++ b/gcc/testsuite/gcc.dg/graphite/fuse-1.c
@@ -3,13 +3,13 @@
 /* { dg-options "-O2 -floop-nest-optimize -fdump-tree-forwprop-all -fdump-tree-graphite-all" } */
 
 /* Make sure we fuse the loops like this:
-ISL AST generated by ISL:
+AST generated by isl:
 for (int c0 = 0; c0 <= 99; c0 += 1) {
   S_3(c0);
   S_6(c0);
   S_9(c0);
 } */
-/* { dg-final { scan-tree-dump-times "ISL AST generated by ISL:.*for \\(int c0 = 0; c0 <= 99; c0 \\+= 1\\) \\{.*S_.*\\(c0\\);.*S_.*\\(c0\\);.*S_.*\\(c0\\);.*\\}" 1 "graphite" } } */
+/* { dg-final { scan-tree-dump-times "AST generated by isl:.*for \\(int c0 = 0; c0 <= 99; c0 \\+= 1\\) \\{.*S_.*\\(c0\\);.*S_.*\\(c0\\);.*S_.*\\(c0\\);.*\\}" 1 "graphite" } } */
 
 /* Check that after fusing the loops, the scalar computation is also fused.  */
 /* { dg-final { scan-tree-dump-times "gimple_simplified to\[^\\n\]*\\^ 12" 1 "forwprop4" } } */
diff --git a/gcc/testsuite/gcc.dg/graphite/fuse-2.c b/gcc/testsuite/gcc.dg/graphite/fuse-2.c
index 2f27c66fd32..a76f3a660f7 100644
--- a/gcc/testsuite/gcc.dg/graphite/fuse-2.c
+++ b/gcc/testsuite/gcc.dg/graphite/fuse-2.c
@@ -1,7 +1,7 @@
 /* Check that the three loops are fused.  */
 
 /* Make sure we fuse the loops like this:
-ISL AST generated by ISL:
+AST generated by isl:
 for (int c0 = 0; c0 <= 99; c0 += 1) {
   S_3(c0);
   S_6(c0);
@@ -9,7 +9,7 @@ for (int c0 = 0; c0 <= 99; c0 += 1) {
 }
 */
 
-/* { dg-final { scan-tree-dump-times "ISL AST generated by ISL:.*for \\(int c0 = 0; c0 <= 99; c0 \\+= 1\\) \\{.*S_.*\\(c0\\);.*S_.*\\(c0\\);.*S_.*\\(c0\\);.*\\}" 1 "graphite" } } */
+/* { dg-final { scan-tree-dump-times "AST generated by isl:.*for \\(int c0 = 0; c0 <= 99; c0 \\+= 1\\) \\{.*S_.*\\(c0\\);.*S_.*\\(c0\\);.*S_.*\\(c0\\);.*\\}" 1 "graphite" } } */
 
 #define MAX 100
 int A[MAX], B[MAX], C[MAX];
diff --git a/gcc/testsuite/gcc.dg/graphite/interchange-1.c b/gcc/testsuite/gcc.dg/graphite/interchange-1.c
index 44b5ae03a57..b65d4861e68 100644
--- a/gcc/testsuite/gcc.dg/graphite/interchange-1.c
+++ b/gcc/testsuite/gcc.dg/graphite/interchange-1.c
@@ -49,7 +49,7 @@ main (void)
   return 0;
 }
 
-/*FIXME: Between ISL-0.12 and ISL-0.15 the schedule optimizer needs to print
+/*FIXME: Between isl 0.12 and isl 0.15 the schedule optimizer needs to print
 something canonical so that it can be checked in the test.  The final code
 generated by both are same in this case but the messaged printed are
 not consistent.  */
diff --git a/gcc/testsuite/gcc.dg/graphite/pr35356-1.c b/gcc/testsuite/gcc.dg/graphite/pr35356-1.c
index 0eb714c7870..89e69941f81 100644
--- a/gcc/testsuite/gcc.dg/graphite/pr35356-1.c
+++ b/gcc/testsuite/gcc.dg/graphite/pr35356-1.c
@@ -26,7 +26,7 @@ foo (int bar, int n, int k)
 
    Check that this text is produced:
 
-ISL AST generated by ISL:
+AST generated by isl:
 if (n >= k + 1 && k >= 0) {
   S_6(k);
   S_11(k);
diff --git a/gcc/toplev.c b/gcc/toplev.c
index 43b46d21d8a..e61e06c7aab 100644
--- a/gcc/toplev.c
+++ b/gcc/toplev.c
@@ -1251,7 +1251,7 @@ process_options (void)
       || flag_loop_nest_optimize
       || flag_graphite_identity
       || flag_loop_parallelize_all)
-    sorry ("Graphite loop optimizations cannot be used (ISL is not available)" 
+    sorry ("Graphite loop optimizations cannot be used (isl is not available)"
 	   "(-fgraphite, -fgraphite-identity, -floop-block, "
 	   "-floop-interchange, -floop-strip-mine, -floop-parallelize-all, "
 	   "-floop-unroll-and-jam, and -ftree-loop-linear)");