[polly] Fix incorrect pointer checking (PR #117228)

[via llvm-commits]

https://github.com/ChuvakHome updated https://github.com/llvm/llvm-project/pull/117228

>From bfde4b689ab0afe5fec24ad85f1d5e707e791e0b Mon Sep 17 00:00:00 2001
From: timurdemenev <311683 at niuitmo.ru>
Date: Thu, 21 Nov 2024 23:11:26 +0300
Subject: [PATCH 1/2] Fix incorrect pointer checking

---
 polly/lib/External/isl/isl_local_space.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/polly/lib/External/isl/isl_local_space.c b/polly/lib/External/isl/isl_local_space.c
index 604e276a0d1f66..1bffcd544eb735 100644
--- a/polly/lib/External/isl/isl_local_space.c
+++ b/polly/lib/External/isl/isl_local_space.c
@@ -254,7 +254,7 @@ isl_size isl_local_space_var_offset(__isl_keep isl_local_space *ls,
 	isl_space *space;
 
 	space = isl_local_space_peek_space(ls);
-	if (space < 0)
+	if (space == NULL)
 		return isl_size_error;
 	switch (type) {
 	case isl_dim_param:

>From 47ca62c2a65fbf1736e13bdcca4f212f1921d5e1 Mon Sep 17 00:00:00 2001
From: timurdemenev <311683 at niuitmo.ru>
Date: Fri, 22 Nov 2024 18:18:36 +0300
Subject: [PATCH 2/2] Fix clang-format

---
 polly/lib/External/isl/isl_local_space.c | 2420 +++++++++++-----------
 1 file changed, 1184 insertions(+), 1236 deletions(-)

diff --git a/polly/lib/External/isl/isl_local_space.c b/polly/lib/External/isl/isl_local_space.c
index 1bffcd544eb735..16a6659a43291e 100644
--- a/polly/lib/External/isl/isl_local_space.c
+++ b/polly/lib/External/isl/isl_local_space.c
@@ -10,157 +10,149 @@
  * and Ecole Normale Superieure, 45 rue d’Ulm, 75230 Paris, France
  */
 
-#include <isl_ctx_private.h>
 #include <isl/id.h>
-#include <isl_map_private.h>
+#include <isl_aff_private.h>
+#include <isl_ctx_private.h>
+#include <isl_local.h>
 #include <isl_local_space_private.h>
-#include <isl_space_private.h>
+#include <isl_map_private.h>
 #include <isl_mat_private.h>
-#include <isl_aff_private.h>
-#include <isl_vec_private.h>
 #include <isl_point_private.h>
 #include <isl_seq.h>
-#include <isl_local.h>
+#include <isl_space_private.h>
+#include <isl_vec_private.h>
 
-isl_ctx *isl_local_space_get_ctx(__isl_keep isl_local_space *ls)
-{
-	return ls ? ls->dim->ctx : NULL;
+isl_ctx *isl_local_space_get_ctx(__isl_keep isl_local_space *ls) {
+  return ls ? ls->dim->ctx : NULL;
 }
 
 /* Return a hash value that digests "ls".
  */
-uint32_t isl_local_space_get_hash(__isl_keep isl_local_space *ls)
-{
-	uint32_t hash, space_hash, div_hash;
+uint32_t isl_local_space_get_hash(__isl_keep isl_local_space *ls) {
+  uint32_t hash, space_hash, div_hash;
 
-	if (!ls)
-		return 0;
+  if (!ls)
+    return 0;
 
-	hash = isl_hash_init();
-	space_hash = isl_space_get_full_hash(isl_local_space_peek_space(ls));
-	isl_hash_hash(hash, space_hash);
-	div_hash = isl_mat_get_hash(ls->div);
-	isl_hash_hash(hash, div_hash);
+  hash = isl_hash_init();
+  space_hash = isl_space_get_full_hash(isl_local_space_peek_space(ls));
+  isl_hash_hash(hash, space_hash);
+  div_hash = isl_mat_get_hash(ls->div);
+  isl_hash_hash(hash, div_hash);
 
-	return hash;
+  return hash;
 }
 
-__isl_give isl_local_space *isl_local_space_alloc_div(
-	__isl_take isl_space *space, __isl_take isl_mat *div)
-{
-	isl_ctx *ctx;
-	isl_local_space *ls = NULL;
+__isl_give isl_local_space *
+isl_local_space_alloc_div(__isl_take isl_space *space,
+                          __isl_take isl_mat *div) {
+  isl_ctx *ctx;
+  isl_local_space *ls = NULL;
 
-	if (!space || !div)
-		goto error;
+  if (!space || !div)
+    goto error;
 
-	ctx = isl_space_get_ctx(space);
-	ls = isl_calloc_type(ctx, struct isl_local_space);
-	if (!ls)
-		goto error;
+  ctx = isl_space_get_ctx(space);
+  ls = isl_calloc_type(ctx, struct isl_local_space);
+  if (!ls)
+    goto error;
 
-	ls->ref = 1;
-	ls->dim = space;
-	ls->div = div;
+  ls->ref = 1;
+  ls->dim = space;
+  ls->div = div;
 
-	return ls;
+  return ls;
 error:
-	isl_mat_free(div);
-	isl_space_free(space);
-	isl_local_space_free(ls);
-	return NULL;
+  isl_mat_free(div);
+  isl_space_free(space);
+  isl_local_space_free(ls);
+  return NULL;
 }
 
 __isl_give isl_local_space *isl_local_space_alloc(__isl_take isl_space *space,
-	unsigned n_div)
-{
-	isl_ctx *ctx;
-	isl_mat *div;
-	isl_size total;
+                                                  unsigned n_div) {
+  isl_ctx *ctx;
+  isl_mat *div;
+  isl_size total;
 
-	if (!space)
-		return NULL;
+  if (!space)
+    return NULL;
 
-	total = isl_space_dim(space, isl_dim_all);
-	if (total < 0)
-		return isl_local_space_from_space(isl_space_free(space));
+  total = isl_space_dim(space, isl_dim_all);
+  if (total < 0)
+    return isl_local_space_from_space(isl_space_free(space));
 
-	ctx = isl_space_get_ctx(space);
-	div = isl_mat_alloc(ctx, n_div, 1 + 1 + total + n_div);
-	return isl_local_space_alloc_div(space, div);
+  ctx = isl_space_get_ctx(space);
+  div = isl_mat_alloc(ctx, n_div, 1 + 1 + total + n_div);
+  return isl_local_space_alloc_div(space, div);
 }
 
-__isl_give isl_local_space *isl_local_space_from_space(
-	__isl_take isl_space *space)
-{
-	return isl_local_space_alloc(space, 0);
+__isl_give isl_local_space *
+isl_local_space_from_space(__isl_take isl_space *space) {
+  return isl_local_space_alloc(space, 0);
 }
 
-__isl_give isl_local_space *isl_local_space_copy(__isl_keep isl_local_space *ls)
-{
-	if (!ls)
-		return NULL;
+__isl_give isl_local_space *
+isl_local_space_copy(__isl_keep isl_local_space *ls) {
+  if (!ls)
+    return NULL;
 
-	ls->ref++;
-	return ls;
+  ls->ref++;
+  return ls;
 }
 
-__isl_give isl_local_space *isl_local_space_dup(__isl_keep isl_local_space *ls)
-{
-	if (!ls)
-		return NULL;
-
-	return isl_local_space_alloc_div(isl_space_copy(ls->dim),
-					 isl_mat_copy(ls->div));
+__isl_give isl_local_space *
+isl_local_space_dup(__isl_keep isl_local_space *ls) {
+  if (!ls)
+    return NULL;
 
+  return isl_local_space_alloc_div(isl_space_copy(ls->dim),
+                                   isl_mat_copy(ls->div));
 }
 
-__isl_give isl_local_space *isl_local_space_cow(__isl_take isl_local_space *ls)
-{
-	if (!ls)
-		return NULL;
+__isl_give isl_local_space *
+isl_local_space_cow(__isl_take isl_local_space *ls) {
+  if (!ls)
+    return NULL;
 
-	if (ls->ref == 1)
-		return ls;
-	ls->ref--;
-	return isl_local_space_dup(ls);
+  if (ls->ref == 1)
+    return ls;
+  ls->ref--;
+  return isl_local_space_dup(ls);
 }
 
-__isl_null isl_local_space *isl_local_space_free(
-	__isl_take isl_local_space *ls)
-{
-	if (!ls)
-		return NULL;
+__isl_null isl_local_space *
+isl_local_space_free(__isl_take isl_local_space *ls) {
+  if (!ls)
+    return NULL;
 
-	if (--ls->ref > 0)
-		return NULL;
+  if (--ls->ref > 0)
+    return NULL;
 
-	isl_space_free(ls->dim);
-	isl_mat_free(ls->div);
+  isl_space_free(ls->dim);
+  isl_mat_free(ls->div);
 
-	free(ls);
+  free(ls);
 
-	return NULL;
+  return NULL;
 }
 
 /* Is the local space that of a parameter domain?
  */
-isl_bool isl_local_space_is_params(__isl_keep isl_local_space *ls)
-{
-	if (!ls)
-		return isl_bool_error;
-	return isl_space_is_params(ls->dim);
+isl_bool isl_local_space_is_params(__isl_keep isl_local_space *ls) {
+  if (!ls)
+    return isl_bool_error;
+  return isl_space_is_params(ls->dim);
 }
 
 /* Is the local space that of a set?
  */
-isl_bool isl_local_space_is_set(__isl_keep isl_local_space *ls)
-{
-	return ls ? isl_space_is_set(ls->dim) : isl_bool_error;
+isl_bool isl_local_space_is_set(__isl_keep isl_local_space *ls) {
+  return ls ? isl_space_is_set(ls->dim) : isl_bool_error;
 }
 
 #undef TYPE
-#define TYPE	isl_local_space
+#define TYPE isl_local_space
 
 #include "isl_type_has_equal_space_bin_templ.c"
 #include "isl_type_has_space_templ.c"
@@ -168,37 +160,35 @@ isl_bool isl_local_space_is_set(__isl_keep isl_local_space *ls)
 /* Check that the space of "ls" is equal to "space".
  */
 static isl_stat isl_local_space_check_has_space(__isl_keep isl_local_space *ls,
-	__isl_keep isl_space *space)
-{
-	isl_bool ok;
+                                                __isl_keep isl_space *space) {
+  isl_bool ok;
 
-	ok = isl_local_space_has_space(ls, space);
-	if (ok < 0)
-		return isl_stat_error;
-	if (!ok)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"spaces don't match", return isl_stat_error);
-	return isl_stat_ok;
+  ok = isl_local_space_has_space(ls, space);
+  if (ok < 0)
+    return isl_stat_error;
+  if (!ok)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "spaces don't match", return isl_stat_error);
+  return isl_stat_ok;
 }
 
 /* Return true if the two local spaces are identical, with identical
  * expressions for the integer divisions.
  */
 isl_bool isl_local_space_is_equal(__isl_keep isl_local_space *ls1,
-	__isl_keep isl_local_space *ls2)
-{
-	isl_bool equal;
+                                  __isl_keep isl_local_space *ls2) {
+  isl_bool equal;
 
-	equal = isl_local_space_has_equal_space(ls1, ls2);
-	if (equal < 0 || !equal)
-		return equal;
+  equal = isl_local_space_has_equal_space(ls1, ls2);
+  if (equal < 0 || !equal)
+    return equal;
 
-	if (!isl_local_space_divs_known(ls1))
-		return isl_bool_false;
-	if (!isl_local_space_divs_known(ls2))
-		return isl_bool_false;
+  if (!isl_local_space_divs_known(ls1))
+    return isl_bool_false;
+  if (!isl_local_space_divs_known(ls2))
+    return isl_bool_false;
 
-	return isl_mat_is_equal(ls1->div, ls2->div);
+  return isl_mat_is_equal(ls1->div, ls2->div);
 }
 
 /* Compare two isl_local_spaces.
@@ -207,84 +197,86 @@ isl_bool isl_local_space_is_equal(__isl_keep isl_local_space *ls1,
  * than "ls2" and 0 if they are equal.
  */
 int isl_local_space_cmp(__isl_keep isl_local_space *ls1,
-	__isl_keep isl_local_space *ls2)
-{
-	int cmp;
+                        __isl_keep isl_local_space *ls2) {
+  int cmp;
 
-	if (ls1 == ls2)
-		return 0;
-	if (!ls1)
-		return -1;
-	if (!ls2)
-		return 1;
+  if (ls1 == ls2)
+    return 0;
+  if (!ls1)
+    return -1;
+  if (!ls2)
+    return 1;
 
-	cmp = isl_space_cmp(ls1->dim, ls2->dim);
-	if (cmp != 0)
-		return cmp;
+  cmp = isl_space_cmp(ls1->dim, ls2->dim);
+  if (cmp != 0)
+    return cmp;
 
-	return isl_local_cmp(ls1->div, ls2->div);
+  return isl_local_cmp(ls1->div, ls2->div);
 }
 
 isl_size isl_local_space_dim(__isl_keep isl_local_space *ls,
-	enum isl_dim_type type)
-{
-	if (!ls)
-		return isl_size_error;
-	if (type == isl_dim_div)
-		return ls->div->n_row;
-	if (type == isl_dim_all) {
-		isl_size dim = isl_space_dim(ls->dim, isl_dim_all);
-		if (dim < 0)
-			return isl_size_error;
-		return dim + ls->div->n_row;
-	}
-	return isl_space_dim(ls->dim, type);
+                             enum isl_dim_type type) {
+  if (!ls)
+    return isl_size_error;
+  if (type == isl_dim_div)
+    return ls->div->n_row;
+  if (type == isl_dim_all) {
+    isl_size dim = isl_space_dim(ls->dim, isl_dim_all);
+    if (dim < 0)
+      return isl_size_error;
+    return dim + ls->div->n_row;
+  }
+  return isl_space_dim(ls->dim, type);
 }
 
 #undef TYPE
-#define TYPE	isl_local_space
+#define TYPE isl_local_space
 #include "check_type_range_templ.c"
 
 /* Return the position of the variables of the given type
  * within the sequence of variables of "ls".
  */
 isl_size isl_local_space_var_offset(__isl_keep isl_local_space *ls,
-	enum isl_dim_type type)
-{
-	isl_space *space;
-
-	space = isl_local_space_peek_space(ls);
-	if (space == NULL)
-		return isl_size_error;
-	switch (type) {
-	case isl_dim_param:
-	case isl_dim_in:
-	case isl_dim_out:	return isl_space_offset(space, type);
-	case isl_dim_div:	return isl_space_dim(space, isl_dim_all);
-	case isl_dim_cst:
-	default:
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"invalid dimension type", return isl_size_error);
-	}
+                                    enum isl_dim_type type) {
+  isl_space *space;
+
+  space = isl_local_space_peek_space(ls);
+  if (space == NULL)
+    return isl_size_error;
+
+  switch (type) {
+  case isl_dim_param:
+  case isl_dim_in:
+  case isl_dim_out:
+    return isl_space_offset(space, type);
+  case isl_dim_div:
+    return isl_space_dim(space, isl_dim_all);
+  case isl_dim_cst:
+  default:
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "invalid dimension type", return isl_size_error);
+  }
 }
 
 /* Return the position of the coefficients of the variables of the given type
  * within the sequence of coefficients of "ls".
  */
 unsigned isl_local_space_offset(__isl_keep isl_local_space *ls,
-	enum isl_dim_type type)
-{
-	if (!ls)
-		return 0;
-
-	switch (type) {
-	case isl_dim_cst:	return 0;
-	case isl_dim_param:
-	case isl_dim_in:
-	case isl_dim_out:
-	case isl_dim_div:	return 1 + isl_local_space_var_offset(ls, type);
-	default:		return 0;
-	}
+                                enum isl_dim_type type) {
+  if (!ls)
+    return 0;
+
+  switch (type) {
+  case isl_dim_cst:
+    return 0;
+  case isl_dim_param:
+  case isl_dim_in:
+  case isl_dim_out:
+  case isl_dim_div:
+    return 1 + isl_local_space_var_offset(ls, type);
+  default:
+    return 0;
+  }
 }
 
 /* Return the position of the dimension of the given type and name
@@ -292,54 +284,50 @@ unsigned isl_local_space_offset(__isl_keep isl_local_space *ls,
  * Return -1 if no such dimension can be found.
  */
 int isl_local_space_find_dim_by_name(__isl_keep isl_local_space *ls,
-	enum isl_dim_type type, const char *name)
-{
-	if (!ls)
-		return -1;
-	if (type == isl_dim_div)
-		return -1;
-	return isl_space_find_dim_by_name(ls->dim, type, name);
+                                     enum isl_dim_type type, const char *name) {
+  if (!ls)
+    return -1;
+  if (type == isl_dim_div)
+    return -1;
+  return isl_space_find_dim_by_name(ls->dim, type, name);
 }
 
 /* Does the given dimension have a name?
  */
 isl_bool isl_local_space_has_dim_name(__isl_keep isl_local_space *ls,
-	enum isl_dim_type type, unsigned pos)
-{
-	return ls ? isl_space_has_dim_name(ls->dim, type, pos) : isl_bool_error;
+                                      enum isl_dim_type type, unsigned pos) {
+  return ls ? isl_space_has_dim_name(ls->dim, type, pos) : isl_bool_error;
 }
 
 const char *isl_local_space_get_dim_name(__isl_keep isl_local_space *ls,
-	enum isl_dim_type type, unsigned pos)
-{
-	return ls ? isl_space_get_dim_name(ls->dim, type, pos) : NULL;
+                                         enum isl_dim_type type, unsigned pos) {
+  return ls ? isl_space_get_dim_name(ls->dim, type, pos) : NULL;
 }
 
 isl_bool isl_local_space_has_dim_id(__isl_keep isl_local_space *ls,
-	enum isl_dim_type type, unsigned pos)
-{
-	return ls ? isl_space_has_dim_id(ls->dim, type, pos) : isl_bool_error;
+                                    enum isl_dim_type type, unsigned pos) {
+  return ls ? isl_space_has_dim_id(ls->dim, type, pos) : isl_bool_error;
 }
 
 __isl_give isl_id *isl_local_space_get_dim_id(__isl_keep isl_local_space *ls,
-	enum isl_dim_type type, unsigned pos)
-{
-	return ls ? isl_space_get_dim_id(ls->dim, type, pos) : NULL;
+                                              enum isl_dim_type type,
+                                              unsigned pos) {
+  return ls ? isl_space_get_dim_id(ls->dim, type, pos) : NULL;
 }
 
 /* Return the argument of the integer division at position "pos" in "ls".
  * All local variables in "ls" are known to have a (complete) explicit
  * representation.
  */
-static __isl_give isl_aff *extract_div(__isl_keep isl_local_space *ls, int pos)
-{
-	isl_aff *aff;
+static __isl_give isl_aff *extract_div(__isl_keep isl_local_space *ls,
+                                       int pos) {
+  isl_aff *aff;
 
-	aff = isl_aff_alloc(isl_local_space_copy(ls));
-	if (!aff)
-		return NULL;
-	isl_seq_cpy(aff->v->el, ls->div->row[pos], aff->v->size);
-	return aff;
+  aff = isl_aff_alloc(isl_local_space_copy(ls));
+  if (!aff)
+    return NULL;
+  isl_seq_cpy(aff->v->el, ls->div->row[pos], aff->v->size);
+  return aff;
 }
 
 /* Return the argument of the integer division at position "pos" in "ls".
@@ -348,31 +336,30 @@ static __isl_give isl_aff *extract_div(__isl_keep isl_local_space *ls, int pos)
  * Remove them first because the domain of an isl_aff
  * is not allowed to have unknown local variables.
  */
-static __isl_give isl_aff *drop_unknown_divs_and_extract_div(
-	__isl_keep isl_local_space *ls, int pos)
-{
-	int i;
-	isl_size n;
-	isl_bool unknown;
-	isl_aff *aff;
-
-	n = isl_local_space_dim(ls, isl_dim_div);
-	if (n < 0)
-		return NULL;
-	ls = isl_local_space_copy(ls);
-	for (i = n - 1; i >= 0; --i) {
-		unknown = isl_local_space_div_is_marked_unknown(ls, i);
-		if (unknown < 0)
-			ls = isl_local_space_free(ls);
-		else if (!unknown)
-			continue;
-		ls = isl_local_space_drop_dims(ls, isl_dim_div, i, 1);
-		if (pos > i)
-			--pos;
-	}
-	aff = extract_div(ls, pos);
-	isl_local_space_free(ls);
-	return aff;
+static __isl_give isl_aff *
+drop_unknown_divs_and_extract_div(__isl_keep isl_local_space *ls, int pos) {
+  int i;
+  isl_size n;
+  isl_bool unknown;
+  isl_aff *aff;
+
+  n = isl_local_space_dim(ls, isl_dim_div);
+  if (n < 0)
+    return NULL;
+  ls = isl_local_space_copy(ls);
+  for (i = n - 1; i >= 0; --i) {
+    unknown = isl_local_space_div_is_marked_unknown(ls, i);
+    if (unknown < 0)
+      ls = isl_local_space_free(ls);
+    else if (!unknown)
+      continue;
+    ls = isl_local_space_drop_dims(ls, isl_dim_div, i, 1);
+    if (pos > i)
+      --pos;
+  }
+  aff = extract_div(ls, pos);
+  isl_local_space_free(ls);
+  return aff;
 }
 
 /* Return the argument of the integer division at position "pos" in "ls".
@@ -383,49 +370,48 @@ static __isl_give isl_aff *drop_unknown_divs_and_extract_div(
  * is not allowed to have unknown local variables.
  */
 __isl_give isl_aff *isl_local_space_get_div(__isl_keep isl_local_space *ls,
-	int pos)
-{
-	isl_bool known;
-
-	if (!ls)
-		return NULL;
-
-	if (pos < 0 || pos >= ls->div->n_row)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"index out of bounds", return NULL);
-
-	known = isl_local_space_div_is_known(ls, pos);
-	if (known < 0)
-		return NULL;
-	if (!known)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"expression of div unknown", return NULL);
-	if (!isl_local_space_is_set(ls))
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"cannot represent divs of map spaces", return NULL);
-
-	known = isl_local_space_divs_known(ls);
-	if (known < 0)
-		return NULL;
-	if (known)
-		return extract_div(ls, pos);
-	else
-		return drop_unknown_divs_and_extract_div(ls, pos);
+                                            int pos) {
+  isl_bool known;
+
+  if (!ls)
+    return NULL;
+
+  if (pos < 0 || pos >= ls->div->n_row)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "index out of bounds", return NULL);
+
+  known = isl_local_space_div_is_known(ls, pos);
+  if (known < 0)
+    return NULL;
+  if (!known)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "expression of div unknown", return NULL);
+  if (!isl_local_space_is_set(ls))
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "cannot represent divs of map spaces", return NULL);
+
+  known = isl_local_space_divs_known(ls);
+  if (known < 0)
+    return NULL;
+  if (known)
+    return extract_div(ls, pos);
+  else
+    return drop_unknown_divs_and_extract_div(ls, pos);
 }
 
 /* Return the space of "ls".
  */
-__isl_keep isl_space *isl_local_space_peek_space(__isl_keep isl_local_space *ls)
-{
-	if (!ls)
-		return NULL;
+__isl_keep isl_space *
+isl_local_space_peek_space(__isl_keep isl_local_space *ls) {
+  if (!ls)
+    return NULL;
 
-	return ls->dim;
+  return ls->dim;
 }
 
-__isl_give isl_space *isl_local_space_get_space(__isl_keep isl_local_space *ls)
-{
-	return isl_space_copy(isl_local_space_peek_space(ls));
+__isl_give isl_space *
+isl_local_space_get_space(__isl_keep isl_local_space *ls) {
+  return isl_space_copy(isl_local_space_peek_space(ls));
 }
 
 /* Return the space of "ls".
@@ -437,17 +423,17 @@ __isl_give isl_space *isl_local_space_get_space(__isl_keep isl_local_space *ls)
  * a subsequent call to isl_local_space_restore_space.
  * The only exception is that isl_local_space_free can be called instead.
  */
-__isl_give isl_space *isl_local_space_take_space(__isl_keep isl_local_space *ls)
-{
-	isl_space *space;
+__isl_give isl_space *
+isl_local_space_take_space(__isl_keep isl_local_space *ls) {
+  isl_space *space;
 
-	if (!ls)
-		return NULL;
-	if (ls->ref != 1)
-		return isl_local_space_get_space(ls);
-	space = ls->dim;
-	ls->dim = NULL;
-	return space;
+  if (!ls)
+    return NULL;
+  if (ls->ref != 1)
+    return isl_local_space_get_space(ls);
+  space = ls->dim;
+  ls->dim = NULL;
+  return space;
 }
 
 /* Set the space of "ls" to "space", where the space of "ls" may be missing
@@ -455,42 +441,42 @@ __isl_give isl_space *isl_local_space_take_space(__isl_keep isl_local_space *ls)
  * However, in this case, "ls" only has a single reference and
  * then the call to isl_local_space_cow has no effect.
  */
-__isl_give isl_local_space *isl_local_space_restore_space(
-	__isl_take isl_local_space *ls, __isl_take isl_space *space)
-{
-	if (!ls || !space)
-		goto error;
-
-	if (ls->dim == space) {
-		isl_space_free(space);
-		return ls;
-	}
-
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		goto error;
-	isl_space_free(ls->dim);
-	ls->dim = space;
-
-	return ls;
+__isl_give isl_local_space *
+isl_local_space_restore_space(__isl_take isl_local_space *ls,
+                              __isl_take isl_space *space) {
+  if (!ls || !space)
+    goto error;
+
+  if (ls->dim == space) {
+    isl_space_free(space);
+    return ls;
+  }
+
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    goto error;
+  isl_space_free(ls->dim);
+  ls->dim = space;
+
+  return ls;
 error:
-	isl_local_space_free(ls);
-	isl_space_free(space);
-	return NULL;
+  isl_local_space_free(ls);
+  isl_space_free(space);
+  return NULL;
 }
 
 /* Return the local variables of "ls".
  */
-__isl_keep isl_local *isl_local_space_peek_local(__isl_keep isl_local_space *ls)
-{
-	return ls ? ls->div : NULL;
+__isl_keep isl_local *
+isl_local_space_peek_local(__isl_keep isl_local_space *ls) {
+  return ls ? ls->div : NULL;
 }
 
 /* Return a copy of the local variables of "ls".
  */
-__isl_keep isl_local *isl_local_space_get_local(__isl_keep isl_local_space *ls)
-{
-	return isl_local_copy(isl_local_space_peek_local(ls));
+__isl_keep isl_local *
+isl_local_space_get_local(__isl_keep isl_local_space *ls) {
+  return isl_local_copy(isl_local_space_peek_local(ls));
 }
 
 /* Return the local variables of "ls".
@@ -502,18 +488,17 @@ __isl_keep isl_local *isl_local_space_get_local(__isl_keep isl_local_space *ls)
  * the subsequent call to isl_local_space_restore_local.
  * The only exception is that isl_local_space_free can be called instead.
  */
-static __isl_give isl_local *isl_local_space_take_local(
-	__isl_keep isl_local_space *ls)
-{
-	isl_local *local;
+static __isl_give isl_local *
+isl_local_space_take_local(__isl_keep isl_local_space *ls) {
+  isl_local *local;
 
-	if (!ls)
-		return NULL;
-	if (ls->ref != 1)
-		return isl_local_space_get_local(ls);
-	local = ls->div;
-	ls->div = NULL;
-	return local;
+  if (!ls)
+    return NULL;
+  if (ls->ref != 1)
+    return isl_local_space_get_local(ls);
+  local = ls->div;
+  ls->div = NULL;
+  return local;
 }
 
 /* Set the local variables of "ls" to "local",
@@ -522,187 +507,184 @@ static __isl_give isl_local *isl_local_space_take_local(
  * However, in this case, "ls" only has a single reference and
  * then the call to isl_local_space_cow has no effect.
  */
-static __isl_give isl_local_space *isl_local_space_restore_local(
-	__isl_take isl_local_space *ls, __isl_take isl_local *local)
-{
-	if (!ls || !local)
-		goto error;
-
-	if (ls->div == local) {
-		isl_local_free(local);
-		return ls;
-	}
-
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		goto error;
-	isl_local_free(ls->div);
-	ls->div = local;
-
-	return ls;
+static __isl_give isl_local_space *
+isl_local_space_restore_local(__isl_take isl_local_space *ls,
+                              __isl_take isl_local *local) {
+  if (!ls || !local)
+    goto error;
+
+  if (ls->div == local) {
+    isl_local_free(local);
+    return ls;
+  }
+
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    goto error;
+  isl_local_free(ls->div);
+  ls->div = local;
+
+  return ls;
 error:
-	isl_local_space_free(ls);
-	isl_local_free(local);
-	return NULL;
+  isl_local_space_free(ls);
+  isl_local_free(local);
+  return NULL;
 }
 
 /* Replace the identifier of the tuple of type "type" by "id".
  */
-__isl_give isl_local_space *isl_local_space_set_tuple_id(
-	__isl_take isl_local_space *ls,
-	enum isl_dim_type type, __isl_take isl_id *id)
-{
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		goto error;
-	ls->dim = isl_space_set_tuple_id(ls->dim, type, id);
-	if (!ls->dim)
-		return isl_local_space_free(ls);
-	return ls;
+__isl_give isl_local_space *
+isl_local_space_set_tuple_id(__isl_take isl_local_space *ls,
+                             enum isl_dim_type type, __isl_take isl_id *id) {
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    goto error;
+  ls->dim = isl_space_set_tuple_id(ls->dim, type, id);
+  if (!ls->dim)
+    return isl_local_space_free(ls);
+  return ls;
 error:
-	isl_id_free(id);
-	return NULL;
-}
-
-__isl_give isl_local_space *isl_local_space_set_dim_name(
-	__isl_take isl_local_space *ls,
-	enum isl_dim_type type, unsigned pos, const char *s)
-{
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
-	ls->dim = isl_space_set_dim_name(ls->dim, type, pos, s);
-	if (!ls->dim)
-		return isl_local_space_free(ls);
-
-	return ls;
-}
-
-__isl_give isl_local_space *isl_local_space_set_dim_id(
-	__isl_take isl_local_space *ls,
-	enum isl_dim_type type, unsigned pos, __isl_take isl_id *id)
-{
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		goto error;
-	ls->dim = isl_space_set_dim_id(ls->dim, type, pos, id);
-	if (!ls->dim)
-		return isl_local_space_free(ls);
-
-	return ls;
+  isl_id_free(id);
+  return NULL;
+}
+
+__isl_give isl_local_space *
+isl_local_space_set_dim_name(__isl_take isl_local_space *ls,
+                             enum isl_dim_type type, unsigned pos,
+                             const char *s) {
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
+  ls->dim = isl_space_set_dim_name(ls->dim, type, pos, s);
+  if (!ls->dim)
+    return isl_local_space_free(ls);
+
+  return ls;
+}
+
+__isl_give isl_local_space *
+isl_local_space_set_dim_id(__isl_take isl_local_space *ls,
+                           enum isl_dim_type type, unsigned pos,
+                           __isl_take isl_id *id) {
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    goto error;
+  ls->dim = isl_space_set_dim_id(ls->dim, type, pos, id);
+  if (!ls->dim)
+    return isl_local_space_free(ls);
+
+  return ls;
 error:
-	isl_id_free(id);
-	return NULL;
+  isl_id_free(id);
+  return NULL;
 }
 
 /* Construct a zero-dimensional local space with the given parameter domain.
  */
-__isl_give isl_local_space *isl_local_space_set_from_params(
-	__isl_take isl_local_space *ls)
-{
-	isl_space *space;
+__isl_give isl_local_space *
+isl_local_space_set_from_params(__isl_take isl_local_space *ls) {
+  isl_space *space;
 
-	space = isl_local_space_take_space(ls);
-	space = isl_space_set_from_params(space);
-	ls = isl_local_space_restore_space(ls, space);
+  space = isl_local_space_take_space(ls);
+  space = isl_space_set_from_params(space);
+  ls = isl_local_space_restore_space(ls, space);
 
-	return ls;
+  return ls;
 }
 
-__isl_give isl_local_space *isl_local_space_reset_space(
-	__isl_take isl_local_space *ls, __isl_take isl_space *space)
-{
-	ls = isl_local_space_cow(ls);
-	if (!ls || !space)
-		goto error;
+__isl_give isl_local_space *
+isl_local_space_reset_space(__isl_take isl_local_space *ls,
+                            __isl_take isl_space *space) {
+  ls = isl_local_space_cow(ls);
+  if (!ls || !space)
+    goto error;
 
-	isl_space_free(ls->dim);
-	ls->dim = space;
+  isl_space_free(ls->dim);
+  ls->dim = space;
 
-	return ls;
+  return ls;
 error:
-	isl_local_space_free(ls);
-	isl_space_free(space);
-	return NULL;
+  isl_local_space_free(ls);
+  isl_space_free(space);
+  return NULL;
 }
 
 /* Reorder the dimensions of "ls" according to the given reordering.
  * The reordering r is assumed to have been extended with the local
  * variables, leaving them in the same order.
  */
-__isl_give isl_local_space *isl_local_space_realign(
-	__isl_take isl_local_space *ls, __isl_take isl_reordering *r)
-{
-	isl_local *local;
+__isl_give isl_local_space *
+isl_local_space_realign(__isl_take isl_local_space *ls,
+                        __isl_take isl_reordering *r) {
+  isl_local *local;
 
-	local = isl_local_space_take_local(ls);
-	local = isl_local_reorder(local, isl_reordering_copy(r));
-	ls = isl_local_space_restore_local(ls, local);
+  local = isl_local_space_take_local(ls);
+  local = isl_local_reorder(local, isl_reordering_copy(r));
+  ls = isl_local_space_restore_local(ls, local);
 
-	ls = isl_local_space_reset_space(ls, isl_reordering_get_space(r));
+  ls = isl_local_space_reset_space(ls, isl_reordering_get_space(r));
 
-	isl_reordering_free(r);
-	return ls;
+  isl_reordering_free(r);
+  return ls;
 }
 
-__isl_give isl_local_space *isl_local_space_add_div(
-	__isl_take isl_local_space *ls, __isl_take isl_vec *div)
-{
-	ls = isl_local_space_cow(ls);
-	if (!ls || !div)
-		goto error;
+__isl_give isl_local_space *
+isl_local_space_add_div(__isl_take isl_local_space *ls,
+                        __isl_take isl_vec *div) {
+  ls = isl_local_space_cow(ls);
+  if (!ls || !div)
+    goto error;
 
-	if (ls->div->n_col != div->size)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"incompatible dimensions", goto error);
+  if (ls->div->n_col != div->size)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "incompatible dimensions", goto error);
 
-	ls->div = isl_mat_add_zero_cols(ls->div, 1);
-	ls->div = isl_mat_add_rows(ls->div, 1);
-	if (!ls->div)
-		goto error;
+  ls->div = isl_mat_add_zero_cols(ls->div, 1);
+  ls->div = isl_mat_add_rows(ls->div, 1);
+  if (!ls->div)
+    goto error;
 
-	isl_seq_cpy(ls->div->row[ls->div->n_row - 1], div->el, div->size);
-	isl_int_set_si(ls->div->row[ls->div->n_row - 1][div->size], 0);
+  isl_seq_cpy(ls->div->row[ls->div->n_row - 1], div->el, div->size);
+  isl_int_set_si(ls->div->row[ls->div->n_row - 1][div->size], 0);
 
-	isl_vec_free(div);
-	return ls;
+  isl_vec_free(div);
+  return ls;
 error:
-	isl_local_space_free(ls);
-	isl_vec_free(div);
-	return NULL;
+  isl_local_space_free(ls);
+  isl_vec_free(div);
+  return NULL;
 }
 
-__isl_give isl_local_space *isl_local_space_replace_divs(
-	__isl_take isl_local_space *ls, __isl_take isl_mat *div)
-{
-	ls = isl_local_space_cow(ls);
+__isl_give isl_local_space *
+isl_local_space_replace_divs(__isl_take isl_local_space *ls,
+                             __isl_take isl_mat *div) {
+  ls = isl_local_space_cow(ls);
 
-	if (!ls || !div)
-		goto error;
+  if (!ls || !div)
+    goto error;
 
-	isl_mat_free(ls->div);
-	ls->div = div;
-	return ls;
+  isl_mat_free(ls->div);
+  ls->div = div;
+  return ls;
 error:
-	isl_mat_free(div);
-	isl_local_space_free(ls);
-	return NULL;
+  isl_mat_free(div);
+  isl_local_space_free(ls);
+  return NULL;
 }
 
 /* Copy row "s" of "src" to row "d" of "dst", applying the expansion
  * defined by "exp".
  */
-static void expand_row(__isl_keep isl_mat *dst, int d,
-	__isl_keep isl_mat *src, int s, int *exp)
-{
-	int i;
-	unsigned c = src->n_col - src->n_row;
+static void expand_row(__isl_keep isl_mat *dst, int d, __isl_keep isl_mat *src,
+                       int s, int *exp) {
+  int i;
+  unsigned c = src->n_col - src->n_row;
 
-	isl_seq_cpy(dst->row[d], src->row[s], c);
-	isl_seq_clr(dst->row[d] + c, dst->n_col - c);
+  isl_seq_cpy(dst->row[d], src->row[s], c);
+  isl_seq_clr(dst->row[d] + c, dst->n_col - c);
 
-	for (i = 0; i < s; ++i)
-		isl_int_set(dst->row[d][c + exp[i]], src->row[s][c + i]);
+  for (i = 0; i < s; ++i)
+    isl_int_set(dst->row[d][c + exp[i]], src->row[s][c + i]);
 }
 
 /* Compare (known) divs.
@@ -711,46 +693,43 @@ static void expand_row(__isl_keep isl_mat *dst, int d,
  * current order.  Otherwise, we sort the known div after the unknown
  * div only if the known div depends on the unknown div.
  */
-static int cmp_row(isl_int *row_i, isl_int *row_j, int i, int j,
-	unsigned n_row, unsigned n_col)
-{
-	int li, lj;
-	int unknown_i, unknown_j;
+static int cmp_row(isl_int *row_i, isl_int *row_j, int i, int j, unsigned n_row,
+                   unsigned n_col) {
+  int li, lj;
+  int unknown_i, unknown_j;
 
-	unknown_i = isl_int_is_zero(row_i[0]);
-	unknown_j = isl_int_is_zero(row_j[0]);
+  unknown_i = isl_int_is_zero(row_i[0]);
+  unknown_j = isl_int_is_zero(row_j[0]);
 
-	if (unknown_i && unknown_j)
-		return i - j;
+  if (unknown_i && unknown_j)
+    return i - j;
 
-	if (unknown_i)
-		li = n_col - n_row + i;
-	else
-		li = isl_seq_last_non_zero(row_i, n_col);
-	if (unknown_j)
-		lj = n_col - n_row + j;
-	else
-		lj = isl_seq_last_non_zero(row_j, n_col);
+  if (unknown_i)
+    li = n_col - n_row + i;
+  else
+    li = isl_seq_last_non_zero(row_i, n_col);
+  if (unknown_j)
+    lj = n_col - n_row + j;
+  else
+    lj = isl_seq_last_non_zero(row_j, n_col);
 
-	if (li != lj)
-		return li - lj;
+  if (li != lj)
+    return li - lj;
 
-	return isl_seq_cmp(row_i, row_j, n_col);
+  return isl_seq_cmp(row_i, row_j, n_col);
 }
 
 /* Call cmp_row for divs in a matrix.
  */
-int isl_mat_cmp_div(__isl_keep isl_mat *div, int i, int j)
-{
-	return cmp_row(div->row[i], div->row[j], i, j, div->n_row, div->n_col);
+int isl_mat_cmp_div(__isl_keep isl_mat *div, int i, int j) {
+  return cmp_row(div->row[i], div->row[j], i, j, div->n_row, div->n_col);
 }
 
 /* Call cmp_row for divs in a basic map.
  */
 static int bmap_cmp_row(__isl_keep isl_basic_map *bmap, int i, int j,
-	unsigned total)
-{
-	return cmp_row(bmap->div[i], bmap->div[j], i, j, bmap->n_div, total);
+                        unsigned total) {
+  return cmp_row(bmap->div[i], bmap->div[j], i, j, bmap->n_div, total);
 }
 
 /* Sort the divs in "bmap".
@@ -759,39 +738,37 @@ static int bmap_cmp_row(__isl_keep isl_basic_map *bmap, int i, int j,
  * Then we perform a simple insertion sort based on the same ordering
  * that is used in isl_merge_divs.
  */
-__isl_give isl_basic_map *isl_basic_map_sort_divs(
-	__isl_take isl_basic_map *bmap)
-{
-	int i, j;
-	isl_size total;
-
-	bmap = isl_basic_map_order_divs(bmap);
-	if (!bmap)
-		return NULL;
-	if (bmap->n_div <= 1)
-		return bmap;
-
-	total = isl_basic_map_dim(bmap, isl_dim_all);
-	if (total < 0)
-		return isl_basic_map_free(bmap);
-	for (i = 1; i < bmap->n_div; ++i) {
-		for (j = i - 1; j >= 0; --j) {
-			if (bmap_cmp_row(bmap, j, j + 1, 2 + total) <= 0)
-				break;
-			bmap = isl_basic_map_swap_div(bmap, j, j + 1);
-			if (!bmap)
-				return NULL;
-		}
-	}
-
-	return bmap;
+__isl_give isl_basic_map *
+isl_basic_map_sort_divs(__isl_take isl_basic_map *bmap) {
+  int i, j;
+  isl_size total;
+
+  bmap = isl_basic_map_order_divs(bmap);
+  if (!bmap)
+    return NULL;
+  if (bmap->n_div <= 1)
+    return bmap;
+
+  total = isl_basic_map_dim(bmap, isl_dim_all);
+  if (total < 0)
+    return isl_basic_map_free(bmap);
+  for (i = 1; i < bmap->n_div; ++i) {
+    for (j = i - 1; j >= 0; --j) {
+      if (bmap_cmp_row(bmap, j, j + 1, 2 + total) <= 0)
+        break;
+      bmap = isl_basic_map_swap_div(bmap, j, j + 1);
+      if (!bmap)
+        return NULL;
+    }
+  }
+
+  return bmap;
 }
 
 /* Sort the divs in the basic maps of "map".
  */
-__isl_give isl_map *isl_map_sort_divs(__isl_take isl_map *map)
-{
-	return isl_map_inline_foreach_basic_map(map, &isl_basic_map_sort_divs);
+__isl_give isl_map *isl_map_sort_divs(__isl_take isl_map *map) {
+  return isl_map_inline_foreach_basic_map(map, &isl_basic_map_sort_divs);
 }
 
 /* Combine the two lists of divs into a single list.
@@ -803,135 +780,133 @@ __isl_give isl_map *isl_map_sort_divs(__isl_take isl_map *map)
  * For optimal merging, the two input list should have been sorted.
  */
 __isl_give isl_mat *isl_merge_divs(__isl_keep isl_mat *div1,
-	__isl_keep isl_mat *div2, int *exp1, int *exp2)
-{
-	int i, j, k;
-	isl_mat *div = NULL;
-	unsigned d;
-
-	if (!div1 || !div2)
-		return NULL;
-
-	d = div1->n_col - div1->n_row;
-	div = isl_mat_alloc(div1->ctx, 1 + div1->n_row + div2->n_row,
-				d + div1->n_row + div2->n_row);
-	if (!div)
-		return NULL;
-
-	for (i = 0, j = 0, k = 0; i < div1->n_row && j < div2->n_row; ++k) {
-		int cmp;
-
-		expand_row(div, k, div1, i, exp1);
-		expand_row(div, k + 1, div2, j, exp2);
-
-		cmp = isl_mat_cmp_div(div, k, k + 1);
-		if (cmp == 0) {
-			exp1[i++] = k;
-			exp2[j++] = k;
-		} else if (cmp < 0) {
-			exp1[i++] = k;
-		} else {
-			exp2[j++] = k;
-			isl_seq_cpy(div->row[k], div->row[k + 1], div->n_col);
-		}
-	}
-	for (; i < div1->n_row; ++i, ++k) {
-		expand_row(div, k, div1, i, exp1);
-		exp1[i] = k;
-	}
-	for (; j < div2->n_row; ++j, ++k) {
-		expand_row(div, k, div2, j, exp2);
-		exp2[j] = k;
-	}
-
-	div->n_row = k;
-	div->n_col = d + k;
-
-	return div;
+                                   __isl_keep isl_mat *div2, int *exp1,
+                                   int *exp2) {
+  int i, j, k;
+  isl_mat *div = NULL;
+  unsigned d;
+
+  if (!div1 || !div2)
+    return NULL;
+
+  d = div1->n_col - div1->n_row;
+  div = isl_mat_alloc(div1->ctx, 1 + div1->n_row + div2->n_row,
+                      d + div1->n_row + div2->n_row);
+  if (!div)
+    return NULL;
+
+  for (i = 0, j = 0, k = 0; i < div1->n_row && j < div2->n_row; ++k) {
+    int cmp;
+
+    expand_row(div, k, div1, i, exp1);
+    expand_row(div, k + 1, div2, j, exp2);
+
+    cmp = isl_mat_cmp_div(div, k, k + 1);
+    if (cmp == 0) {
+      exp1[i++] = k;
+      exp2[j++] = k;
+    } else if (cmp < 0) {
+      exp1[i++] = k;
+    } else {
+      exp2[j++] = k;
+      isl_seq_cpy(div->row[k], div->row[k + 1], div->n_col);
+    }
+  }
+  for (; i < div1->n_row; ++i, ++k) {
+    expand_row(div, k, div1, i, exp1);
+    exp1[i] = k;
+  }
+  for (; j < div2->n_row; ++j, ++k) {
+    expand_row(div, k, div2, j, exp2);
+    exp2[j] = k;
+  }
+
+  div->n_row = k;
+  div->n_col = d + k;
+
+  return div;
 }
 
 /* Swap divs "a" and "b" in "ls".
  */
-__isl_give isl_local_space *isl_local_space_swap_div(
-	__isl_take isl_local_space *ls, int a, int b)
-{
-	int offset;
-
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
-	if (a < 0 || a >= ls->div->n_row || b < 0 || b >= ls->div->n_row)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"index out of bounds", return isl_local_space_free(ls));
-	offset = ls->div->n_col - ls->div->n_row;
-	ls->div = isl_mat_swap_cols(ls->div, offset + a, offset + b);
-	ls->div = isl_mat_swap_rows(ls->div, a, b);
-	if (!ls->div)
-		return isl_local_space_free(ls);
-	return ls;
+__isl_give isl_local_space *
+isl_local_space_swap_div(__isl_take isl_local_space *ls, int a, int b) {
+  int offset;
+
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
+  if (a < 0 || a >= ls->div->n_row || b < 0 || b >= ls->div->n_row)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "index out of bounds", return isl_local_space_free(ls));
+  offset = ls->div->n_col - ls->div->n_row;
+  ls->div = isl_mat_swap_cols(ls->div, offset + a, offset + b);
+  ls->div = isl_mat_swap_rows(ls->div, a, b);
+  if (!ls->div)
+    return isl_local_space_free(ls);
+  return ls;
 }
 
 /* Construct a local space that contains all the divs in either
  * "ls1" or "ls2".
  */
-__isl_give isl_local_space *isl_local_space_intersect(
-	__isl_take isl_local_space *ls1, __isl_take isl_local_space *ls2)
-{
-	isl_ctx *ctx;
-	int *exp1 = NULL;
-	int *exp2 = NULL;
-	isl_mat *div = NULL;
-	isl_bool equal;
-
-	if (!ls1 || !ls2)
-		goto error;
-
-	ctx = isl_local_space_get_ctx(ls1);
-	if (!isl_space_is_equal(ls1->dim, ls2->dim))
-		isl_die(ctx, isl_error_invalid,
-			"spaces should be identical", goto error);
-
-	if (ls2->div->n_row == 0) {
-		isl_local_space_free(ls2);
-		return ls1;
-	}
-
-	if (ls1->div->n_row == 0) {
-		isl_local_space_free(ls1);
-		return ls2;
-	}
-
-	exp1 = isl_alloc_array(ctx, int, ls1->div->n_row);
-	exp2 = isl_alloc_array(ctx, int, ls2->div->n_row);
-	if (!exp1 || !exp2)
-		goto error;
-
-	div = isl_merge_divs(ls1->div, ls2->div, exp1, exp2);
-	if (!div)
-		goto error;
-
-	equal = isl_mat_is_equal(ls1->div, div);
-	if (equal < 0)
-		goto error;
-	if (!equal)
-		ls1 = isl_local_space_cow(ls1);
-	if (!ls1)
-		goto error;
-
-	free(exp1);
-	free(exp2);
-	isl_local_space_free(ls2);
-	isl_mat_free(ls1->div);
-	ls1->div = div;
-
-	return ls1;
+__isl_give isl_local_space *
+isl_local_space_intersect(__isl_take isl_local_space *ls1,
+                          __isl_take isl_local_space *ls2) {
+  isl_ctx *ctx;
+  int *exp1 = NULL;
+  int *exp2 = NULL;
+  isl_mat *div = NULL;
+  isl_bool equal;
+
+  if (!ls1 || !ls2)
+    goto error;
+
+  ctx = isl_local_space_get_ctx(ls1);
+  if (!isl_space_is_equal(ls1->dim, ls2->dim))
+    isl_die(ctx, isl_error_invalid, "spaces should be identical", goto error);
+
+  if (ls2->div->n_row == 0) {
+    isl_local_space_free(ls2);
+    return ls1;
+  }
+
+  if (ls1->div->n_row == 0) {
+    isl_local_space_free(ls1);
+    return ls2;
+  }
+
+  exp1 = isl_alloc_array(ctx, int, ls1->div->n_row);
+  exp2 = isl_alloc_array(ctx, int, ls2->div->n_row);
+  if (!exp1 || !exp2)
+    goto error;
+
+  div = isl_merge_divs(ls1->div, ls2->div, exp1, exp2);
+  if (!div)
+    goto error;
+
+  equal = isl_mat_is_equal(ls1->div, div);
+  if (equal < 0)
+    goto error;
+  if (!equal)
+    ls1 = isl_local_space_cow(ls1);
+  if (!ls1)
+    goto error;
+
+  free(exp1);
+  free(exp2);
+  isl_local_space_free(ls2);
+  isl_mat_free(ls1->div);
+  ls1->div = div;
+
+  return ls1;
 error:
-	free(exp1);
-	free(exp2);
-	isl_mat_free(div);
-	isl_local_space_free(ls1);
-	isl_local_space_free(ls2);
-	return NULL;
+  free(exp1);
+  free(exp2);
+  isl_mat_free(div);
+  isl_local_space_free(ls1);
+  isl_local_space_free(ls2);
+  return NULL;
 }
 
 /* Is the local variable "div" of "ls" marked as not having
@@ -942,127 +917,120 @@ __isl_give isl_local_space *isl_local_space_intersect(
  * have an explicit representation.
  */
 isl_bool isl_local_space_div_is_marked_unknown(__isl_keep isl_local_space *ls,
-	int div)
-{
-	if (!ls)
-		return isl_bool_error;
-	return isl_local_div_is_marked_unknown(ls->div, div);
+                                               int div) {
+  if (!ls)
+    return isl_bool_error;
+  return isl_local_div_is_marked_unknown(ls->div, div);
 }
 
 /* Does "ls" have a complete explicit representation for div "div"?
  */
-isl_bool isl_local_space_div_is_known(__isl_keep isl_local_space *ls, int div)
-{
-	if (!ls)
-		return isl_bool_error;
-	return isl_local_div_is_known(ls->div, div);
+isl_bool isl_local_space_div_is_known(__isl_keep isl_local_space *ls, int div) {
+  if (!ls)
+    return isl_bool_error;
+  return isl_local_div_is_known(ls->div, div);
 }
 
 /* Does "ls" have an explicit representation for all local variables?
  */
-isl_bool isl_local_space_divs_known(__isl_keep isl_local_space *ls)
-{
-	if (!ls)
-		return isl_bool_error;
-	return isl_local_divs_known(ls->div);
-}
-
-__isl_give isl_local_space *isl_local_space_domain(
-	__isl_take isl_local_space *ls)
-{
-	isl_size n_out;
-
-	n_out = isl_local_space_dim(ls, isl_dim_out);
-	if (n_out < 0)
-		return isl_local_space_free(ls);
-	ls = isl_local_space_drop_dims(ls, isl_dim_out, 0, n_out);
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
-	ls->dim = isl_space_domain(ls->dim);
-	if (!ls->dim)
-		return isl_local_space_free(ls);
-	return ls;
-}
-
-__isl_give isl_local_space *isl_local_space_range(
-	__isl_take isl_local_space *ls)
-{
-	isl_size n_in;
-
-	n_in = isl_local_space_dim(ls, isl_dim_in);
-	if (n_in < 0)
-		return isl_local_space_free(ls);
-	ls = isl_local_space_drop_dims(ls, isl_dim_in, 0, n_in);
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
-
-	ls->dim = isl_space_range(ls->dim);
-	if (!ls->dim)
-		return isl_local_space_free(ls);
-	return ls;
+isl_bool isl_local_space_divs_known(__isl_keep isl_local_space *ls) {
+  if (!ls)
+    return isl_bool_error;
+  return isl_local_divs_known(ls->div);
+}
+
+__isl_give isl_local_space *
+isl_local_space_domain(__isl_take isl_local_space *ls) {
+  isl_size n_out;
+
+  n_out = isl_local_space_dim(ls, isl_dim_out);
+  if (n_out < 0)
+    return isl_local_space_free(ls);
+  ls = isl_local_space_drop_dims(ls, isl_dim_out, 0, n_out);
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
+  ls->dim = isl_space_domain(ls->dim);
+  if (!ls->dim)
+    return isl_local_space_free(ls);
+  return ls;
+}
+
+__isl_give isl_local_space *
+isl_local_space_range(__isl_take isl_local_space *ls) {
+  isl_size n_in;
+
+  n_in = isl_local_space_dim(ls, isl_dim_in);
+  if (n_in < 0)
+    return isl_local_space_free(ls);
+  ls = isl_local_space_drop_dims(ls, isl_dim_in, 0, n_in);
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
+
+  ls->dim = isl_space_range(ls->dim);
+  if (!ls->dim)
+    return isl_local_space_free(ls);
+  return ls;
 }
 
 /* Construct a local space for a map that has the given local
  * space as domain and that has a zero-dimensional range.
  */
-__isl_give isl_local_space *isl_local_space_from_domain(
-	__isl_take isl_local_space *ls)
-{
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
-	ls->dim = isl_space_from_domain(ls->dim);
-	if (!ls->dim)
-		return isl_local_space_free(ls);
-	return ls;
+__isl_give isl_local_space *
+isl_local_space_from_domain(__isl_take isl_local_space *ls) {
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
+  ls->dim = isl_space_from_domain(ls->dim);
+  if (!ls->dim)
+    return isl_local_space_free(ls);
+  return ls;
 }
 
-__isl_give isl_local_space *isl_local_space_add_dims(
-	__isl_take isl_local_space *ls, enum isl_dim_type type, unsigned n)
-{
-	isl_size pos;
+__isl_give isl_local_space *
+isl_local_space_add_dims(__isl_take isl_local_space *ls, enum isl_dim_type type,
+                         unsigned n) {
+  isl_size pos;
 
-	pos = isl_local_space_dim(ls, type);
-	if (pos < 0)
-		return isl_local_space_free(ls);
-	return isl_local_space_insert_dims(ls, type, pos, n);
+  pos = isl_local_space_dim(ls, type);
+  if (pos < 0)
+    return isl_local_space_free(ls);
+  return isl_local_space_insert_dims(ls, type, pos, n);
 }
 
 /* Lift the basic set "bset", living in the space of "ls"
  * to live in a space with extra coordinates corresponding
  * to the local variables of "ls".
  */
-__isl_give isl_basic_set *isl_local_space_lift_basic_set(
-	__isl_take isl_local_space *ls, __isl_take isl_basic_set *bset)
-{
-	isl_size n_local;
-	isl_space *space;
-	isl_basic_set *ls_bset;
-
-	n_local = isl_local_space_dim(ls, isl_dim_div);
-	space = isl_basic_set_peek_space(bset);
-	if (n_local < 0 ||
-	    isl_local_space_check_has_space(ls, space) < 0)
-		goto error;
-
-	if (n_local == 0) {
-		isl_local_space_free(ls);
-		return bset;
-	}
-
-	bset = isl_basic_set_add_dims(bset, isl_dim_set, n_local);
-	ls_bset = isl_basic_set_from_local_space(ls);
-	ls_bset = isl_basic_set_lift(ls_bset);
-	ls_bset = isl_basic_set_flatten(ls_bset);
-	bset = isl_basic_set_intersect(bset, ls_bset);
-
-	return bset;
+__isl_give isl_basic_set *
+isl_local_space_lift_basic_set(__isl_take isl_local_space *ls,
+                               __isl_take isl_basic_set *bset) {
+  isl_size n_local;
+  isl_space *space;
+  isl_basic_set *ls_bset;
+
+  n_local = isl_local_space_dim(ls, isl_dim_div);
+  space = isl_basic_set_peek_space(bset);
+  if (n_local < 0 || isl_local_space_check_has_space(ls, space) < 0)
+    goto error;
+
+  if (n_local == 0) {
+    isl_local_space_free(ls);
+    return bset;
+  }
+
+  bset = isl_basic_set_add_dims(bset, isl_dim_set, n_local);
+  ls_bset = isl_basic_set_from_local_space(ls);
+  ls_bset = isl_basic_set_lift(ls_bset);
+  ls_bset = isl_basic_set_flatten(ls_bset);
+  bset = isl_basic_set_intersect(bset, ls_bset);
+
+  return bset;
 error:
-	isl_local_space_free(ls);
-	isl_basic_set_free(bset);
-	return NULL;
+  isl_local_space_free(ls);
+  isl_basic_set_free(bset);
+  return NULL;
 }
 
 /* Lift the set "set", living in the space of "ls"
@@ -1070,56 +1038,53 @@ __isl_give isl_basic_set *isl_local_space_lift_basic_set(
  * to the local variables of "ls".
  */
 __isl_give isl_set *isl_local_space_lift_set(__isl_take isl_local_space *ls,
-	__isl_take isl_set *set)
-{
-	isl_size n_local;
-	isl_basic_set *bset;
-
-	n_local = isl_local_space_dim(ls, isl_dim_div);
-	if (n_local < 0 ||
-	    isl_local_space_check_has_space(ls, isl_set_peek_space(set)) < 0)
-		goto error;
-
-	if (n_local == 0) {
-		isl_local_space_free(ls);
-		return set;
-	}
-
-	set = isl_set_add_dims(set, isl_dim_set, n_local);
-	bset = isl_basic_set_from_local_space(ls);
-	bset = isl_basic_set_lift(bset);
-	bset = isl_basic_set_flatten(bset);
-	set = isl_set_intersect(set, isl_set_from_basic_set(bset));
-
-	return set;
+                                             __isl_take isl_set *set) {
+  isl_size n_local;
+  isl_basic_set *bset;
+
+  n_local = isl_local_space_dim(ls, isl_dim_div);
+  if (n_local < 0 ||
+      isl_local_space_check_has_space(ls, isl_set_peek_space(set)) < 0)
+    goto error;
+
+  if (n_local == 0) {
+    isl_local_space_free(ls);
+    return set;
+  }
+
+  set = isl_set_add_dims(set, isl_dim_set, n_local);
+  bset = isl_basic_set_from_local_space(ls);
+  bset = isl_basic_set_lift(bset);
+  bset = isl_basic_set_flatten(bset);
+  set = isl_set_intersect(set, isl_set_from_basic_set(bset));
+
+  return set;
 error:
-	isl_local_space_free(ls);
-	isl_set_free(set);
-	return NULL;
+  isl_local_space_free(ls);
+  isl_set_free(set);
+  return NULL;
 }
 
 /* Remove common factor of non-constant terms and denominator.
  */
-static __isl_give isl_local_space *normalize_div(
-	__isl_take isl_local_space *ls, int div)
-{
-	isl_ctx *ctx = ls->div->ctx;
-	unsigned total = ls->div->n_col - 2;
+static __isl_give isl_local_space *normalize_div(__isl_take isl_local_space *ls,
+                                                 int div) {
+  isl_ctx *ctx = ls->div->ctx;
+  unsigned total = ls->div->n_col - 2;
 
-	isl_seq_gcd(ls->div->row[div] + 2, total, &ctx->normalize_gcd);
-	isl_int_gcd(ctx->normalize_gcd,
-		    ctx->normalize_gcd, ls->div->row[div][0]);
-	if (isl_int_is_one(ctx->normalize_gcd))
-		return ls;
+  isl_seq_gcd(ls->div->row[div] + 2, total, &ctx->normalize_gcd);
+  isl_int_gcd(ctx->normalize_gcd, ctx->normalize_gcd, ls->div->row[div][0]);
+  if (isl_int_is_one(ctx->normalize_gcd))
+    return ls;
 
-	isl_seq_scale_down(ls->div->row[div] + 2, ls->div->row[div] + 2,
-			    ctx->normalize_gcd, total);
-	isl_int_divexact(ls->div->row[div][0], ls->div->row[div][0],
-			    ctx->normalize_gcd);
-	isl_int_fdiv_q(ls->div->row[div][1], ls->div->row[div][1],
-			    ctx->normalize_gcd);
+  isl_seq_scale_down(ls->div->row[div] + 2, ls->div->row[div] + 2,
+                     ctx->normalize_gcd, total);
+  isl_int_divexact(ls->div->row[div][0], ls->div->row[div][0],
+                   ctx->normalize_gcd);
+  isl_int_fdiv_q(ls->div->row[div][1], ls->div->row[div][1],
+                 ctx->normalize_gcd);
 
-	return ls;
+  return ls;
 }
 
 /* Exploit the equalities in "eq" to simplify the expressions of
@@ -1127,53 +1092,53 @@ static __isl_give isl_local_space *normalize_div(
  * The integer divisions in "ls" are assumed to appear as regular
  * dimensions in "eq".
  */
-__isl_give isl_local_space *isl_local_space_substitute_equalities(
-	__isl_take isl_local_space *ls, __isl_take isl_basic_set *eq)
-{
-	int i, j, k;
-	isl_size total, dim;
-	unsigned n_div;
-
-	if (!ls || !eq)
-		goto error;
-
-	total = isl_space_dim(eq->dim, isl_dim_all);
-	dim = isl_local_space_dim(ls, isl_dim_all);
-	if (dim < 0 || total < 0)
-		goto error;
-	if (dim != total)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"spaces don't match", goto error);
-	total++;
-	n_div = eq->n_div;
-	for (i = 0; i < eq->n_eq; ++i) {
-		j = isl_seq_last_non_zero(eq->eq[i], total + n_div);
-		if (j < 0 || j == 0 || j >= total)
-			continue;
-
-		for (k = 0; k < ls->div->n_row; ++k) {
-			if (isl_int_is_zero(ls->div->row[k][1 + j]))
-				continue;
-			ls = isl_local_space_cow(ls);
-			if (!ls)
-				goto error;
-			ls->div = isl_mat_cow(ls->div);
-			if (!ls->div)
-				goto error;
-			isl_seq_elim(ls->div->row[k] + 1, eq->eq[i], j, total,
-					&ls->div->row[k][0]);
-			ls = normalize_div(ls, k);
-			if (!ls)
-				goto error;
-		}
-	}
-
-	isl_basic_set_free(eq);
-	return ls;
+__isl_give isl_local_space *
+isl_local_space_substitute_equalities(__isl_take isl_local_space *ls,
+                                      __isl_take isl_basic_set *eq) {
+  int i, j, k;
+  isl_size total, dim;
+  unsigned n_div;
+
+  if (!ls || !eq)
+    goto error;
+
+  total = isl_space_dim(eq->dim, isl_dim_all);
+  dim = isl_local_space_dim(ls, isl_dim_all);
+  if (dim < 0 || total < 0)
+    goto error;
+  if (dim != total)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "spaces don't match", goto error);
+  total++;
+  n_div = eq->n_div;
+  for (i = 0; i < eq->n_eq; ++i) {
+    j = isl_seq_last_non_zero(eq->eq[i], total + n_div);
+    if (j < 0 || j == 0 || j >= total)
+      continue;
+
+    for (k = 0; k < ls->div->n_row; ++k) {
+      if (isl_int_is_zero(ls->div->row[k][1 + j]))
+        continue;
+      ls = isl_local_space_cow(ls);
+      if (!ls)
+        goto error;
+      ls->div = isl_mat_cow(ls->div);
+      if (!ls->div)
+        goto error;
+      isl_seq_elim(ls->div->row[k] + 1, eq->eq[i], j, total,
+                   &ls->div->row[k][0]);
+      ls = normalize_div(ls, k);
+      if (!ls)
+        goto error;
+    }
+  }
+
+  isl_basic_set_free(eq);
+  return ls;
 error:
-	isl_basic_set_free(eq);
-	isl_local_space_free(ls);
-	return NULL;
+  isl_basic_set_free(eq);
+  isl_local_space_free(ls);
+  return NULL;
 }
 
 /* Plug in the affine expressions "subs" of length "subs_len" (including
@@ -1192,42 +1157,40 @@ __isl_give isl_local_space *isl_local_space_substitute_equalities(
  *
  *	floor((a f + d g)/(m d))
  */
-__isl_give isl_local_space *isl_local_space_substitute_seq(
-	__isl_take isl_local_space *ls,
-	enum isl_dim_type type, unsigned pos, isl_int *subs, int subs_len,
-	int first, int n)
-{
-	int i;
-	isl_int v;
-
-	if (n == 0)
-		return ls;
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
-	ls->div = isl_mat_cow(ls->div);
-	if (!ls->div)
-		return isl_local_space_free(ls);
-
-	if (first + n > ls->div->n_row)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"index out of bounds", return isl_local_space_free(ls));
-
-	pos += isl_local_space_offset(ls, type);
-
-	isl_int_init(v);
-	for (i = first; i < first + n; ++i) {
-		if (isl_int_is_zero(ls->div->row[i][1 + pos]))
-			continue;
-		isl_seq_substitute(ls->div->row[i], pos, subs,
-			ls->div->n_col, subs_len, v);
-		ls = normalize_div(ls, i);
-		if (!ls)
-			break;
-	}
-	isl_int_clear(v);
-
-	return ls;
+__isl_give isl_local_space *
+isl_local_space_substitute_seq(__isl_take isl_local_space *ls,
+                               enum isl_dim_type type, unsigned pos,
+                               isl_int *subs, int subs_len, int first, int n) {
+  int i;
+  isl_int v;
+
+  if (n == 0)
+    return ls;
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
+  ls->div = isl_mat_cow(ls->div);
+  if (!ls->div)
+    return isl_local_space_free(ls);
+
+  if (first + n > ls->div->n_row)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "index out of bounds", return isl_local_space_free(ls));
+
+  pos += isl_local_space_offset(ls, type);
+
+  isl_int_init(v);
+  for (i = first; i < first + n; ++i) {
+    if (isl_int_is_zero(ls->div->row[i][1 + pos]))
+      continue;
+    isl_seq_substitute(ls->div->row[i], pos, subs, ls->div->n_col, subs_len, v);
+    ls = normalize_div(ls, i);
+    if (!ls)
+      break;
+  }
+  isl_int_clear(v);
+
+  return ls;
 }
 
 /* Plug in "subs" for dimension "type", "pos" in the integer divisions
@@ -1245,101 +1208,98 @@ __isl_give isl_local_space *isl_local_space_substitute_seq(
  *
  *	floor((a f + d g)/(m d))
  */
-__isl_give isl_local_space *isl_local_space_substitute(
-	__isl_take isl_local_space *ls,
-	enum isl_dim_type type, unsigned pos, __isl_keep isl_aff *subs)
-{
-	isl_size n_div;
-
-	ls = isl_local_space_cow(ls);
-	if (!ls || !subs)
-		return isl_local_space_free(ls);
-
-	if (!isl_space_is_equal(ls->dim, subs->ls->dim))
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"spaces don't match", return isl_local_space_free(ls));
-	n_div = isl_local_space_dim(subs->ls, isl_dim_div);
-	if (n_div < 0)
-		return isl_local_space_free(ls);
-	if (n_div != 0)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_unsupported,
-			"cannot handle divs yet",
-			return isl_local_space_free(ls));
-
-	return isl_local_space_substitute_seq(ls, type, pos, subs->v->el,
-					    subs->v->size, 0, ls->div->n_row);
+__isl_give isl_local_space *
+isl_local_space_substitute(__isl_take isl_local_space *ls,
+                           enum isl_dim_type type, unsigned pos,
+                           __isl_keep isl_aff *subs) {
+  isl_size n_div;
+
+  ls = isl_local_space_cow(ls);
+  if (!ls || !subs)
+    return isl_local_space_free(ls);
+
+  if (!isl_space_is_equal(ls->dim, subs->ls->dim))
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "spaces don't match", return isl_local_space_free(ls));
+  n_div = isl_local_space_dim(subs->ls, isl_dim_div);
+  if (n_div < 0)
+    return isl_local_space_free(ls);
+  if (n_div != 0)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_unsupported,
+            "cannot handle divs yet", return isl_local_space_free(ls));
+
+  return isl_local_space_substitute_seq(ls, type, pos, subs->v->el,
+                                        subs->v->size, 0, ls->div->n_row);
 }
 
 isl_bool isl_local_space_is_named_or_nested(__isl_keep isl_local_space *ls,
-	enum isl_dim_type type)
-{
-	if (!ls)
-		return isl_bool_error;
-	return isl_space_is_named_or_nested(ls->dim, type);
-}
-
-__isl_give isl_local_space *isl_local_space_drop_dims(
-	__isl_take isl_local_space *ls,
-	enum isl_dim_type type, unsigned first, unsigned n)
-{
-	if (!ls)
-		return NULL;
-	if (n == 0 && !isl_local_space_is_named_or_nested(ls, type))
-		return ls;
-
-	if (isl_local_space_check_range(ls, type, first, n) < 0)
-		return isl_local_space_free(ls);
-
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
-
-	if (type == isl_dim_div) {
-		ls->div = isl_mat_drop_rows(ls->div, first, n);
-	} else {
-		ls->dim = isl_space_drop_dims(ls->dim, type, first, n);
-		if (!ls->dim)
-			return isl_local_space_free(ls);
-	}
-
-	first += 1 + isl_local_space_offset(ls, type);
-	ls->div = isl_mat_drop_cols(ls->div, first, n);
-	if (!ls->div)
-		return isl_local_space_free(ls);
-
-	return ls;
-}
-
-__isl_give isl_local_space *isl_local_space_insert_dims(
-	__isl_take isl_local_space *ls,
-	enum isl_dim_type type, unsigned first, unsigned n)
-{
-	if (!ls)
-		return NULL;
-	if (n == 0 && !isl_local_space_is_named_or_nested(ls, type))
-		return ls;
-
-	if (isl_local_space_check_range(ls, type, first, 0) < 0)
-		return isl_local_space_free(ls);
-
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
-
-	if (type == isl_dim_div) {
-		ls->div = isl_mat_insert_zero_rows(ls->div, first, n);
-	} else {
-		ls->dim = isl_space_insert_dims(ls->dim, type, first, n);
-		if (!ls->dim)
-			return isl_local_space_free(ls);
-	}
-
-	first += 1 + isl_local_space_offset(ls, type);
-	ls->div = isl_mat_insert_zero_cols(ls->div, first, n);
-	if (!ls->div)
-		return isl_local_space_free(ls);
-
-	return ls;
+                                            enum isl_dim_type type) {
+  if (!ls)
+    return isl_bool_error;
+  return isl_space_is_named_or_nested(ls->dim, type);
+}
+
+__isl_give isl_local_space *
+isl_local_space_drop_dims(__isl_take isl_local_space *ls,
+                          enum isl_dim_type type, unsigned first, unsigned n) {
+  if (!ls)
+    return NULL;
+  if (n == 0 && !isl_local_space_is_named_or_nested(ls, type))
+    return ls;
+
+  if (isl_local_space_check_range(ls, type, first, n) < 0)
+    return isl_local_space_free(ls);
+
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
+
+  if (type == isl_dim_div) {
+    ls->div = isl_mat_drop_rows(ls->div, first, n);
+  } else {
+    ls->dim = isl_space_drop_dims(ls->dim, type, first, n);
+    if (!ls->dim)
+      return isl_local_space_free(ls);
+  }
+
+  first += 1 + isl_local_space_offset(ls, type);
+  ls->div = isl_mat_drop_cols(ls->div, first, n);
+  if (!ls->div)
+    return isl_local_space_free(ls);
+
+  return ls;
+}
+
+__isl_give isl_local_space *
+isl_local_space_insert_dims(__isl_take isl_local_space *ls,
+                            enum isl_dim_type type, unsigned first,
+                            unsigned n) {
+  if (!ls)
+    return NULL;
+  if (n == 0 && !isl_local_space_is_named_or_nested(ls, type))
+    return ls;
+
+  if (isl_local_space_check_range(ls, type, first, 0) < 0)
+    return isl_local_space_free(ls);
+
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
+
+  if (type == isl_dim_div) {
+    ls->div = isl_mat_insert_zero_rows(ls->div, first, n);
+  } else {
+    ls->dim = isl_space_insert_dims(ls->dim, type, first, n);
+    if (!ls->dim)
+      return isl_local_space_free(ls);
+  }
+
+  first += 1 + isl_local_space_offset(ls, type);
+  ls->div = isl_mat_insert_zero_cols(ls->div, first, n);
+  if (!ls->div)
+    return isl_local_space_free(ls);
+
+  return ls;
 }
 
 /* Does the linear part of "constraint" correspond to
@@ -1354,35 +1314,34 @@ __isl_give isl_local_space *isl_local_space_insert_dims(
  * If so, set *sign to the corresponding value.
  */
 static isl_bool is_linear_div_constraint(__isl_keep isl_local_space *ls,
-	isl_int *constraint, unsigned div, int *sign)
-{
-	isl_bool unknown;
-	unsigned pos;
-
-	unknown = isl_local_space_div_is_marked_unknown(ls, div);
-	if (unknown < 0)
-		return isl_bool_error;
-	if (unknown)
-		return isl_bool_false;
-
-	pos = isl_local_space_offset(ls, isl_dim_div) + div;
-
-	if (isl_int_eq(constraint[pos], ls->div->row[div][0])) {
-		*sign = -1;
-		if (!isl_seq_is_neg(constraint + 1,
-				    ls->div->row[div] + 2, pos - 1))
-			return isl_bool_false;
-	} else if (isl_int_abs_eq(constraint[pos], ls->div->row[div][0])) {
-		*sign = 1;
-		if (!isl_seq_eq(constraint + 1, ls->div->row[div] + 2, pos - 1))
-			return isl_bool_false;
-	} else {
-		return isl_bool_false;
-	}
-	if (isl_seq_first_non_zero(constraint + pos + 1,
-				    ls->div->n_row - div - 1) != -1)
-		return isl_bool_false;
-	return isl_bool_true;
+                                         isl_int *constraint, unsigned div,
+                                         int *sign) {
+  isl_bool unknown;
+  unsigned pos;
+
+  unknown = isl_local_space_div_is_marked_unknown(ls, div);
+  if (unknown < 0)
+    return isl_bool_error;
+  if (unknown)
+    return isl_bool_false;
+
+  pos = isl_local_space_offset(ls, isl_dim_div) + div;
+
+  if (isl_int_eq(constraint[pos], ls->div->row[div][0])) {
+    *sign = -1;
+    if (!isl_seq_is_neg(constraint + 1, ls->div->row[div] + 2, pos - 1))
+      return isl_bool_false;
+  } else if (isl_int_abs_eq(constraint[pos], ls->div->row[div][0])) {
+    *sign = 1;
+    if (!isl_seq_eq(constraint + 1, ls->div->row[div] + 2, pos - 1))
+      return isl_bool_false;
+  } else {
+    return isl_bool_false;
+  }
+  if (isl_seq_first_non_zero(constraint + pos + 1, ls->div->n_row - div - 1) !=
+      -1)
+    return isl_bool_false;
+  return isl_bool_true;
 }
 
 /* Check if the constraints pointed to by "constraint" is a div
@@ -1398,32 +1357,31 @@ static isl_bool is_linear_div_constraint(__isl_keep isl_local_space *ls,
  * then check the constant term.
  */
 isl_bool isl_local_space_is_div_constraint(__isl_keep isl_local_space *ls,
-	isl_int *constraint, unsigned div)
-{
-	int sign;
-	isl_bool linear;
-
-	linear = is_linear_div_constraint(ls, constraint, div, &sign);
-	if (linear < 0 || !linear)
-		return linear;
-
-	if (sign < 0) {
-		int neg;
-		isl_int_sub(ls->div->row[div][1],
-				ls->div->row[div][1], ls->div->row[div][0]);
-		isl_int_add_ui(ls->div->row[div][1], ls->div->row[div][1], 1);
-		neg = isl_seq_is_neg(constraint, ls->div->row[div] + 1, 1);
-		isl_int_sub_ui(ls->div->row[div][1], ls->div->row[div][1], 1);
-		isl_int_add(ls->div->row[div][1],
-				ls->div->row[div][1], ls->div->row[div][0]);
-		if (!neg)
-			return isl_bool_false;
-	} else {
-		if (!isl_int_eq(constraint[0], ls->div->row[div][1]))
-			return isl_bool_false;
-	}
-
-	return isl_bool_true;
+                                           isl_int *constraint, unsigned div) {
+  int sign;
+  isl_bool linear;
+
+  linear = is_linear_div_constraint(ls, constraint, div, &sign);
+  if (linear < 0 || !linear)
+    return linear;
+
+  if (sign < 0) {
+    int neg;
+    isl_int_sub(ls->div->row[div][1], ls->div->row[div][1],
+                ls->div->row[div][0]);
+    isl_int_add_ui(ls->div->row[div][1], ls->div->row[div][1], 1);
+    neg = isl_seq_is_neg(constraint, ls->div->row[div] + 1, 1);
+    isl_int_sub_ui(ls->div->row[div][1], ls->div->row[div][1], 1);
+    isl_int_add(ls->div->row[div][1], ls->div->row[div][1],
+                ls->div->row[div][0]);
+    if (!neg)
+      return isl_bool_false;
+  } else {
+    if (!isl_int_eq(constraint[0], ls->div->row[div][1]))
+      return isl_bool_false;
+  }
+
+  return isl_bool_true;
 }
 
 /* Is the constraint pointed to by "constraint" one
@@ -1442,50 +1400,48 @@ isl_bool isl_local_space_is_div_constraint(__isl_keep isl_local_space *ls,
  * has a value close to -c.
  */
 isl_bool isl_local_space_is_div_equality(__isl_keep isl_local_space *ls,
-	isl_int *constraint, unsigned div)
-{
-	int sign;
-	isl_bool linear;
+                                         isl_int *constraint, unsigned div) {
+  int sign;
+  isl_bool linear;
 
-	linear = is_linear_div_constraint(ls, constraint, div, &sign);
-	if (linear < 0 || !linear)
-		return linear;
+  linear = is_linear_div_constraint(ls, constraint, div, &sign);
+  if (linear < 0 || !linear)
+    return linear;
 
-	return isl_bool_ok(sign < 0);
+  return isl_bool_ok(sign < 0);
 }
 
 /*
  * Set active[i] to 1 if the dimension at position i is involved
  * in the linear expression l.
  */
-int *isl_local_space_get_active(__isl_keep isl_local_space *ls, isl_int *l)
-{
-	int i, j;
-	isl_ctx *ctx;
-	int *active = NULL;
-	isl_size total;
-	unsigned offset;
-
-	ctx = isl_local_space_get_ctx(ls);
-	total = isl_local_space_dim(ls, isl_dim_all);
-	if (total < 0)
-		return NULL;
-	active = isl_calloc_array(ctx, int, total);
-	if (total && !active)
-		return NULL;
-
-	for (i = 0; i < total; ++i)
-		active[i] = !isl_int_is_zero(l[i]);
-
-	offset = isl_local_space_offset(ls, isl_dim_div) - 1;
-	for (i = ls->div->n_row - 1; i >= 0; --i) {
-		if (!active[offset + i])
-			continue;
-		for (j = 0; j < total; ++j)
-			active[j] |= !isl_int_is_zero(ls->div->row[i][2 + j]);
-	}
-
-	return active;
+int *isl_local_space_get_active(__isl_keep isl_local_space *ls, isl_int *l) {
+  int i, j;
+  isl_ctx *ctx;
+  int *active = NULL;
+  isl_size total;
+  unsigned offset;
+
+  ctx = isl_local_space_get_ctx(ls);
+  total = isl_local_space_dim(ls, isl_dim_all);
+  if (total < 0)
+    return NULL;
+  active = isl_calloc_array(ctx, int, total);
+  if (total && !active)
+    return NULL;
+
+  for (i = 0; i < total; ++i)
+    active[i] = !isl_int_is_zero(l[i]);
+
+  offset = isl_local_space_offset(ls, isl_dim_div) - 1;
+  for (i = ls->div->n_row - 1; i >= 0; --i) {
+    if (!active[offset + i])
+      continue;
+    for (j = 0; j < total; ++j)
+      active[j] |= !isl_int_is_zero(ls->div->row[i][2 + j]);
+  }
+
+  return active;
 }
 
 /* Given a local space "ls" of a set, create a local space
@@ -1493,45 +1449,43 @@ int *isl_local_space_get_active(__isl_keep isl_local_space *ls, isl_int *l)
  * is of the form [dim -> local[..]], with ls->div->n_row variables in the
  * range of the wrapped map.
  */
-__isl_give isl_local_space *isl_local_space_lift(
-	__isl_take isl_local_space *ls)
-{
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
+__isl_give isl_local_space *
+isl_local_space_lift(__isl_take isl_local_space *ls) {
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
 
-	ls->dim = isl_space_lift(ls->dim, ls->div->n_row);
-	ls->div = isl_mat_drop_rows(ls->div, 0, ls->div->n_row);
-	if (!ls->dim || !ls->div)
-		return isl_local_space_free(ls);
+  ls->dim = isl_space_lift(ls->dim, ls->div->n_row);
+  ls->div = isl_mat_drop_rows(ls->div, 0, ls->div->n_row);
+  if (!ls->dim || !ls->div)
+    return isl_local_space_free(ls);
 
-	return ls;
+  return ls;
 }
 
 /* Construct a basic map that maps a set living in local space "ls"
  * to the corresponding lifted local space.
  */
-__isl_give isl_basic_map *isl_local_space_lifting(
-	__isl_take isl_local_space *ls)
-{
-	isl_basic_map *lifting;
-	isl_basic_set *bset;
-
-	if (!ls)
-		return NULL;
-	if (!isl_local_space_is_set(ls))
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"lifting only defined on set spaces", goto error);
-
-	bset = isl_basic_set_from_local_space(ls);
-	lifting = isl_basic_set_unwrap(isl_basic_set_lift(bset));
-	lifting = isl_basic_map_domain_map(lifting);
-	lifting = isl_basic_map_reverse(lifting);
-
-	return lifting;
+__isl_give isl_basic_map *
+isl_local_space_lifting(__isl_take isl_local_space *ls) {
+  isl_basic_map *lifting;
+  isl_basic_set *bset;
+
+  if (!ls)
+    return NULL;
+  if (!isl_local_space_is_set(ls))
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "lifting only defined on set spaces", goto error);
+
+  bset = isl_basic_set_from_local_space(ls);
+  lifting = isl_basic_set_unwrap(isl_basic_set_lift(bset));
+  lifting = isl_basic_map_domain_map(lifting);
+  lifting = isl_basic_map_reverse(lifting);
+
+  return lifting;
 error:
-	isl_local_space_free(ls);
-	return NULL;
+  isl_local_space_free(ls);
+  return NULL;
 }
 
 /* Compute the preimage of "ls" under the function represented by "ma".
@@ -1553,73 +1507,72 @@ __isl_give isl_basic_map *isl_local_space_lifting(
  * We first copy over the divs from "ma" and then
  * we add the modified divs from "ls".
  */
-__isl_give isl_local_space *isl_local_space_preimage_multi_aff(
-	__isl_take isl_local_space *ls, __isl_take isl_multi_aff *ma)
-{
-	int i;
-	isl_space *space;
-	isl_local_space *res = NULL;
-	isl_size n_div_ls, n_div_ma;
-	isl_int f, c1, c2, g;
-
-	ma = isl_multi_aff_align_divs(ma);
-	if (!ls || !ma)
-		goto error;
-	if (!isl_space_is_range_internal(ls->dim, ma->space))
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"spaces don't match", goto error);
-
-	n_div_ls = isl_local_space_dim(ls, isl_dim_div);
-	n_div_ma = ma->n ? isl_aff_dim(ma->u.p[0], isl_dim_div) : 0;
-	if (n_div_ls < 0 || n_div_ma < 0)
-		goto error;
-
-	space = isl_space_domain(isl_multi_aff_get_space(ma));
-	res = isl_local_space_alloc(space, n_div_ma + n_div_ls);
-	if (!res)
-		goto error;
-
-	if (n_div_ma) {
-		isl_mat_free(res->div);
-		res->div = isl_mat_copy(ma->u.p[0]->ls->div);
-		res->div = isl_mat_add_zero_cols(res->div, n_div_ls);
-		res->div = isl_mat_add_rows(res->div, n_div_ls);
-		if (!res->div)
-			goto error;
-	}
-
-	isl_int_init(f);
-	isl_int_init(c1);
-	isl_int_init(c2);
-	isl_int_init(g);
-
-	for (i = 0; i < ls->div->n_row; ++i) {
-		if (isl_int_is_zero(ls->div->row[i][0])) {
-			isl_int_set_si(res->div->row[n_div_ma + i][0], 0);
-			continue;
-		}
-		if (isl_seq_preimage(res->div->row[n_div_ma + i],
-			    ls->div->row[i],
-			    ma, 0, 0, n_div_ma, n_div_ls, f, c1, c2, g, 1) < 0)
-			res = isl_local_space_free(res);
-		res = normalize_div(res, n_div_ma + i);
-		if (!res)
-			break;
-	}
-
-	isl_int_clear(f);
-	isl_int_clear(c1);
-	isl_int_clear(c2);
-	isl_int_clear(g);
-
-	isl_local_space_free(ls);
-	isl_multi_aff_free(ma);
-	return res;
+__isl_give isl_local_space *
+isl_local_space_preimage_multi_aff(__isl_take isl_local_space *ls,
+                                   __isl_take isl_multi_aff *ma) {
+  int i;
+  isl_space *space;
+  isl_local_space *res = NULL;
+  isl_size n_div_ls, n_div_ma;
+  isl_int f, c1, c2, g;
+
+  ma = isl_multi_aff_align_divs(ma);
+  if (!ls || !ma)
+    goto error;
+  if (!isl_space_is_range_internal(ls->dim, ma->space))
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "spaces don't match", goto error);
+
+  n_div_ls = isl_local_space_dim(ls, isl_dim_div);
+  n_div_ma = ma->n ? isl_aff_dim(ma->u.p[0], isl_dim_div) : 0;
+  if (n_div_ls < 0 || n_div_ma < 0)
+    goto error;
+
+  space = isl_space_domain(isl_multi_aff_get_space(ma));
+  res = isl_local_space_alloc(space, n_div_ma + n_div_ls);
+  if (!res)
+    goto error;
+
+  if (n_div_ma) {
+    isl_mat_free(res->div);
+    res->div = isl_mat_copy(ma->u.p[0]->ls->div);
+    res->div = isl_mat_add_zero_cols(res->div, n_div_ls);
+    res->div = isl_mat_add_rows(res->div, n_div_ls);
+    if (!res->div)
+      goto error;
+  }
+
+  isl_int_init(f);
+  isl_int_init(c1);
+  isl_int_init(c2);
+  isl_int_init(g);
+
+  for (i = 0; i < ls->div->n_row; ++i) {
+    if (isl_int_is_zero(ls->div->row[i][0])) {
+      isl_int_set_si(res->div->row[n_div_ma + i][0], 0);
+      continue;
+    }
+    if (isl_seq_preimage(res->div->row[n_div_ma + i], ls->div->row[i], ma, 0, 0,
+                         n_div_ma, n_div_ls, f, c1, c2, g, 1) < 0)
+      res = isl_local_space_free(res);
+    res = normalize_div(res, n_div_ma + i);
+    if (!res)
+      break;
+  }
+
+  isl_int_clear(f);
+  isl_int_clear(c1);
+  isl_int_clear(c2);
+  isl_int_clear(g);
+
+  isl_local_space_free(ls);
+  isl_multi_aff_free(ma);
+  return res;
 error:
-	isl_local_space_free(ls);
-	isl_multi_aff_free(ma);
-	isl_local_space_free(res);
-	return NULL;
+  isl_local_space_free(ls);
+  isl_multi_aff_free(ma);
+  isl_local_space_free(res);
+  return NULL;
 }
 
 /* Move the "n" dimensions of "src_type" starting at "src_pos" of "ls"
@@ -1628,125 +1581,121 @@ __isl_give isl_local_space *isl_local_space_preimage_multi_aff(
  * Moving to/from local dimensions is not allowed.
  * We currently assume that the dimension type changes.
  */
-__isl_give isl_local_space *isl_local_space_move_dims(
-	__isl_take isl_local_space *ls,
-	enum isl_dim_type dst_type, unsigned dst_pos,
-	enum isl_dim_type src_type, unsigned src_pos, unsigned n)
-{
-	isl_space *space;
-	isl_local *local;
-	isl_size v_src, v_dst;
-	unsigned g_dst_pos;
-	unsigned g_src_pos;
-
-	if (!ls)
-		return NULL;
-	if (n == 0 &&
-	    !isl_local_space_is_named_or_nested(ls, src_type) &&
-	    !isl_local_space_is_named_or_nested(ls, dst_type))
-		return ls;
-
-	if (isl_local_space_check_range(ls, src_type, src_pos, n) < 0)
-		return isl_local_space_free(ls);
-	if (isl_local_space_check_range(ls, dst_type, dst_pos, 0) < 0)
-		return isl_local_space_free(ls);
-	if (src_type == isl_dim_div)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"cannot move divs", return isl_local_space_free(ls));
-	if (dst_type == isl_dim_div)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
-			"cannot move to divs", return isl_local_space_free(ls));
-	if (dst_type == src_type && dst_pos == src_pos)
-		return ls;
-	if (dst_type == src_type)
-		isl_die(isl_local_space_get_ctx(ls), isl_error_unsupported,
-			"moving dims within the same type not supported",
-			return isl_local_space_free(ls));
-
-	v_src = isl_local_space_var_offset(ls, src_type);
-	v_dst = isl_local_space_var_offset(ls, dst_type);
-	if (v_src < 0 || v_dst < 0)
-		return isl_local_space_free(ls);
-	g_src_pos = v_src + src_pos;
-	g_dst_pos = v_dst + dst_pos;
-	if (dst_type > src_type)
-		g_dst_pos -= n;
-
-	local = isl_local_space_take_local(ls);
-	local = isl_local_move_vars(local, g_dst_pos, g_src_pos, n);
-	ls = isl_local_space_restore_local(ls, local);
-
-	space = isl_local_space_take_space(ls);
-	space = isl_space_move_dims(space, dst_type, dst_pos,
-					src_type, src_pos, n);
-	ls = isl_local_space_restore_space(ls, space);
-
-	return ls;
+__isl_give isl_local_space *
+isl_local_space_move_dims(__isl_take isl_local_space *ls,
+                          enum isl_dim_type dst_type, unsigned dst_pos,
+                          enum isl_dim_type src_type, unsigned src_pos,
+                          unsigned n) {
+  isl_space *space;
+  isl_local *local;
+  isl_size v_src, v_dst;
+  unsigned g_dst_pos;
+  unsigned g_src_pos;
+
+  if (!ls)
+    return NULL;
+  if (n == 0 && !isl_local_space_is_named_or_nested(ls, src_type) &&
+      !isl_local_space_is_named_or_nested(ls, dst_type))
+    return ls;
+
+  if (isl_local_space_check_range(ls, src_type, src_pos, n) < 0)
+    return isl_local_space_free(ls);
+  if (isl_local_space_check_range(ls, dst_type, dst_pos, 0) < 0)
+    return isl_local_space_free(ls);
+  if (src_type == isl_dim_div)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid, "cannot move divs",
+            return isl_local_space_free(ls));
+  if (dst_type == isl_dim_div)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_invalid,
+            "cannot move to divs", return isl_local_space_free(ls));
+  if (dst_type == src_type && dst_pos == src_pos)
+    return ls;
+  if (dst_type == src_type)
+    isl_die(isl_local_space_get_ctx(ls), isl_error_unsupported,
+            "moving dims within the same type not supported",
+            return isl_local_space_free(ls));
+
+  v_src = isl_local_space_var_offset(ls, src_type);
+  v_dst = isl_local_space_var_offset(ls, dst_type);
+  if (v_src < 0 || v_dst < 0)
+    return isl_local_space_free(ls);
+  g_src_pos = v_src + src_pos;
+  g_dst_pos = v_dst + dst_pos;
+  if (dst_type > src_type)
+    g_dst_pos -= n;
+
+  local = isl_local_space_take_local(ls);
+  local = isl_local_move_vars(local, g_dst_pos, g_src_pos, n);
+  ls = isl_local_space_restore_local(ls, local);
+
+  space = isl_local_space_take_space(ls);
+  space = isl_space_move_dims(space, dst_type, dst_pos, src_type, src_pos, n);
+  ls = isl_local_space_restore_space(ls, space);
+
+  return ls;
 }
 
 /* Remove any internal structure of the domain of "ls".
  * If there is any such internal structure in the input,
  * then the name of the corresponding space is also removed.
  */
-__isl_give isl_local_space *isl_local_space_flatten_domain(
-	__isl_take isl_local_space *ls)
-{
-	if (!ls)
-		return NULL;
+__isl_give isl_local_space *
+isl_local_space_flatten_domain(__isl_take isl_local_space *ls) {
+  if (!ls)
+    return NULL;
 
-	if (!ls->dim->nested[0])
-		return ls;
+  if (!ls->dim->nested[0])
+    return ls;
 
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
 
-	ls->dim = isl_space_flatten_domain(ls->dim);
-	if (!ls->dim)
-		return isl_local_space_free(ls);
+  ls->dim = isl_space_flatten_domain(ls->dim);
+  if (!ls->dim)
+    return isl_local_space_free(ls);
 
-	return ls;
+  return ls;
 }
 
 /* Remove any internal structure of the range of "ls".
  * If there is any such internal structure in the input,
  * then the name of the corresponding space is also removed.
  */
-__isl_give isl_local_space *isl_local_space_flatten_range(
-	__isl_take isl_local_space *ls)
-{
-	if (!ls)
-		return NULL;
+__isl_give isl_local_space *
+isl_local_space_flatten_range(__isl_take isl_local_space *ls) {
+  if (!ls)
+    return NULL;
 
-	if (!ls->dim->nested[1])
-		return ls;
+  if (!ls->dim->nested[1])
+    return ls;
 
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
 
-	ls->dim = isl_space_flatten_range(ls->dim);
-	if (!ls->dim)
-		return isl_local_space_free(ls);
+  ls->dim = isl_space_flatten_range(ls->dim);
+  if (!ls->dim)
+    return isl_local_space_free(ls);
 
-	return ls;
+  return ls;
 }
 
 /* Given the local space "ls" of a map, return the local space of a set
  * that lives in a space that wraps the space of "ls" and that has
  * the same divs.
  */
-__isl_give isl_local_space *isl_local_space_wrap(__isl_take isl_local_space *ls)
-{
-	ls = isl_local_space_cow(ls);
-	if (!ls)
-		return NULL;
+__isl_give isl_local_space *
+isl_local_space_wrap(__isl_take isl_local_space *ls) {
+  ls = isl_local_space_cow(ls);
+  if (!ls)
+    return NULL;
 
-	ls->dim = isl_space_wrap(ls->dim);
-	if (!ls->dim)
-		return isl_local_space_free(ls);
+  ls->dim = isl_space_wrap(ls->dim);
+  if (!ls->dim)
+    return isl_local_space_free(ls);
 
-	return ls;
+  return ls;
 }
 
 /* Lift the point "pnt", living in the (set) space of "ls"
@@ -1754,35 +1703,34 @@ __isl_give isl_local_space *isl_local_space_wrap(__isl_take isl_local_space *ls)
  * to the local variables of "ls".
  */
 __isl_give isl_point *isl_local_space_lift_point(__isl_take isl_local_space *ls,
-	__isl_take isl_point *pnt)
-{
-	isl_size n_local;
-	isl_space *space;
-	isl_local *local;
-	isl_vec *vec;
+                                                 __isl_take isl_point *pnt) {
+  isl_size n_local;
+  isl_space *space;
+  isl_local *local;
+  isl_vec *vec;
 
-	if (isl_local_space_check_has_space(ls, isl_point_peek_space(pnt)) < 0)
-		goto error;
+  if (isl_local_space_check_has_space(ls, isl_point_peek_space(pnt)) < 0)
+    goto error;
 
-	local = isl_local_space_peek_local(ls);
-	n_local = isl_local_space_dim(ls, isl_dim_div);
-	if (n_local < 0)
-		goto error;
+  local = isl_local_space_peek_local(ls);
+  n_local = isl_local_space_dim(ls, isl_dim_div);
+  if (n_local < 0)
+    goto error;
 
-	space = isl_point_take_space(pnt);
-	vec = isl_point_take_vec(pnt);
+  space = isl_point_take_space(pnt);
+  vec = isl_point_take_vec(pnt);
 
-	space = isl_space_lift(space, n_local);
-	vec = isl_local_extend_point_vec(local, vec);
+  space = isl_space_lift(space, n_local);
+  vec = isl_local_extend_point_vec(local, vec);
 
-	pnt = isl_point_restore_vec(pnt, vec);
-	pnt = isl_point_restore_space(pnt, space);
+  pnt = isl_point_restore_vec(pnt, vec);
+  pnt = isl_point_restore_space(pnt, space);
 
-	isl_local_space_free(ls);
+  isl_local_space_free(ls);
 
-	return pnt;
+  return pnt;
 error:
-	isl_local_space_free(ls);
-	isl_point_free(pnt);
-	return NULL;
+  isl_local_space_free(ls);
+  isl_point_free(pnt);
+  return NULL;
 }