From 4e57c827880d96a16290e4b3f306c2bfec774716 Mon Sep 17 00:00:00 2001
From: Sven Verdoolaege <skimo@kotnet.org>
Date: Thu, 20 Feb 2014 11:27:32 +0100
Subject: [PATCH] export pet_expr_extract_affine

Now that we have given the callers of pet_expr_extract_affine a better
control over what should be considered a parameter, we can expose
this function for external use.
Note that we currently do not expose any functionality for setting or
updating any assignemnts in a pet_context.  We can do so later
if the need arises.

Signed-off-by: Sven Verdoolaege <skimo@kotnet.org>
---
 context.h     |  9 ---------
 expr.h        |  4 ----
 include/pet.h | 20 ++++++++++++++++++++
 3 files changed, 20 insertions(+), 13 deletions(-)

diff --git a/context.h b/context.h
index 3590f7b..25028df 100644
--- a/context.h
+++ b/context.h
@@ -11,15 +11,6 @@
 extern "C" {
 #endif
 
-struct pet_context;
-typedef struct pet_context pet_context;
-
-isl_ctx *pet_context_get_ctx(__isl_keep pet_context *pc);
-
-__isl_give pet_context *pet_context_alloc(__isl_take isl_set *domain);
-__isl_give pet_context *pet_context_copy(__isl_keep pet_context *pc);
-__isl_null pet_context *pet_context_free(__isl_take pet_context *pc);
-
 __isl_give isl_set *pet_context_get_domain(__isl_keep pet_context *pc);
 __isl_give isl_set *pet_context_get_gist_domain(__isl_keep pet_context *pc);
 __isl_give isl_space *pet_context_get_space(__isl_keep pet_context *pc);
diff --git a/expr.h b/expr.h
index 2eae15d..6184d63 100644
--- a/expr.h
+++ b/expr.h
@@ -1,8 +1,6 @@
 #ifndef PET_EXPR_H
 #define PET_EXPR_H
 
-#include <isl/id_to_pw_aff.h>
-
 #include <pet.h>
 
 #include "context.h"
@@ -111,8 +109,6 @@ __isl_give pet_expr *pet_expr_new_int(__isl_take isl_val *v);
 
 __isl_give pet_expr *pet_expr_cow(__isl_take pet_expr *expr);
 
-__isl_give isl_pw_aff *pet_expr_extract_affine(__isl_keep pet_expr *expr,
-	__isl_keep pet_context *pc);
 __isl_give isl_pw_aff *pet_expr_extract_affine_condition(
 	__isl_keep pet_expr *expr, __isl_keep pet_context *pc);
 __isl_give isl_pw_aff *pet_expr_extract_comparison(enum pet_op_type op,
diff --git a/include/pet.h b/include/pet.h
index 5bda348..6d7a2e7 100644
--- a/include/pet.h
+++ b/include/pet.h
@@ -9,6 +9,7 @@
 #include <isl/union_map.h>
 #include <isl/printer.h>
 #include <isl/id_to_ast_expr.h>
+#include <isl/id_to_pw_aff.h>
 
 #if defined(__cplusplus)
 extern "C" {
@@ -213,6 +214,25 @@ int pet_expr_foreach_access_expr(__isl_keep pet_expr *expr,
 int pet_expr_foreach_call_expr(__isl_keep pet_expr *expr,
 	int (*fn)(__isl_keep pet_expr *expr, void *user), void *user);
 
+struct pet_context;
+typedef struct pet_context pet_context;
+
+/* Create a context with the given domain. */
+__isl_give pet_context *pet_context_alloc(__isl_take isl_set *domain);
+/* Return an additional reference to "pc". */
+__isl_give pet_context *pet_context_copy(__isl_keep pet_context *pc);
+/* Free a reference to "pc". */
+__isl_null pet_context *pet_context_free(__isl_take pet_context *pc);
+
+/* Return the isl_ctx in which "pc" was created. */
+isl_ctx *pet_context_get_ctx(__isl_keep pet_context *pc);
+
+/* Extract an affine expression defined over the domain of "pc" from "expr"
+ * or return NaN.
+ */
+__isl_give isl_pw_aff *pet_expr_extract_affine(__isl_keep pet_expr *expr,
+	__isl_keep pet_context *pc);
+
 void pet_expr_dump(__isl_keep pet_expr *expr);
 
 enum pet_tree_type {
-- 
2.11.4.GIT