X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=isl_seq.c;h=42e6b63a78f2dcb911913d9a509ec248f812fcc9;hb=8a344b8a79172abd39257de32fa78fe98fc3bae1;hp=5b2f174b3c0a58d276df75d23ea7af09306c2369;hpb=f719cf8faf20897df40be9e54aa88d1433c92e0e;p=platform%2Fupstream%2Fisl.git

diff --git a/isl_seq.c b/isl_seq.c
index 5b2f174..42e6b63 100644
--- a/isl_seq.c
+++ b/isl_seq.c
@@ -1,4 +1,14 @@
-#include "isl_seq.h"
+/*
+ * Copyright 2008-2009 Katholieke Universiteit Leuven
+ *
+ * Use of this software is governed by the MIT license
+ *
+ * Written by Sven Verdoolaege, K.U.Leuven, Departement
+ * Computerwetenschappen, Celestijnenlaan 200A, B-3001 Leuven, Belgium
+ */
+
+#include <isl_ctx_private.h>
+#include <isl/seq.h>
 
 void isl_seq_clr(isl_int *p, unsigned len)
 {
@@ -7,6 +17,20 @@ void isl_seq_clr(isl_int *p, unsigned len)
 		isl_int_set_si(p[i], 0);
 }
 
+void isl_seq_set_si(isl_int *p, int v, unsigned len)
+{
+	int i;
+	for (i = 0; i < len; ++i)
+		isl_int_set_si(p[i], v);
+}
+
+void isl_seq_set(isl_int *p, isl_int v, unsigned len)
+{
+	int i;
+	for (i = 0; i < len; ++i)
+		isl_int_set(p[i], v);
+}
+
 void isl_seq_neg(isl_int *dst, isl_int *src, unsigned len)
 {
 	int i;
@@ -21,6 +45,20 @@ void isl_seq_cpy(isl_int *dst, isl_int *src, unsigned len)
 		isl_int_set(dst[i], src[i]);
 }
 
+void isl_seq_submul(isl_int *dst, isl_int f, isl_int *src, unsigned len)
+{
+	int i;
+	for (i = 0; i < len; ++i)
+		isl_int_submul(dst[i], f, src[i]);
+}
+
+void isl_seq_addmul(isl_int *dst, isl_int f, isl_int *src, unsigned len)
+{
+	int i;
+	for (i = 0; i < len; ++i)
+		isl_int_addmul(dst[i], f, src[i]);
+}
+
 void isl_seq_swp_or_cpy(isl_int *dst, isl_int *src, unsigned len)
 {
 	int i;
@@ -42,6 +80,27 @@ void isl_seq_scale_down(isl_int *dst, isl_int *src, isl_int m, unsigned len)
 		isl_int_divexact(dst[i], src[i], m);
 }
 
+void isl_seq_cdiv_q(isl_int *dst, isl_int *src, isl_int m, unsigned len)
+{
+	int i;
+	for (i = 0; i < len; ++i)
+		isl_int_cdiv_q(dst[i], src[i], m);
+}
+
+void isl_seq_fdiv_q(isl_int *dst, isl_int *src, isl_int m, unsigned len)
+{
+	int i;
+	for (i = 0; i < len; ++i)
+		isl_int_fdiv_q(dst[i], src[i], m);
+}
+
+void isl_seq_fdiv_r(isl_int *dst, isl_int *src, isl_int m, unsigned len)
+{
+	int i;
+	for (i = 0; i < len; ++i)
+		isl_int_fdiv_r(dst[i], src[i], m);
+}
+
 void isl_seq_combine(isl_int *dst, isl_int m1, isl_int *src1,
 			isl_int m2, isl_int *src2, unsigned len)
 {
@@ -132,6 +191,27 @@ int isl_seq_first_non_zero(isl_int *p, unsigned len)
 	return -1;
 }
 
+int isl_seq_last_non_zero(isl_int *p, unsigned len)
+{
+	int i;
+
+	for (i = len - 1; i >= 0; --i)
+		if (!isl_int_is_zero(p[i]))
+			return i;
+	return -1;
+}
+
+void isl_seq_abs_max(isl_int *p, unsigned len, isl_int *max)
+{
+	int i;
+
+	isl_int_set_si(*max, 0);
+
+	for (i = 0; i < len; ++i)
+		if (isl_int_abs_gt(p[i], *max))
+			isl_int_abs(*max, p[i]);
+}
+
 int isl_seq_abs_min_non_zero(isl_int *p, unsigned len)
 {
 	int i, min = isl_seq_first_non_zero(p, len);
@@ -164,6 +244,29 @@ void isl_seq_gcd(isl_int *p, unsigned len, isl_int *gcd)
 	}
 }
 
+void isl_seq_normalize(struct isl_ctx *ctx, isl_int *p, unsigned len)
+{
+	if (len == 0)
+		return;
+	isl_seq_gcd(p, len, &ctx->normalize_gcd);
+	if (!isl_int_is_zero(ctx->normalize_gcd) &&
+	    !isl_int_is_one(ctx->normalize_gcd))
+		isl_seq_scale_down(p, p, ctx->normalize_gcd, len);
+}
+
+void isl_seq_lcm(isl_int *p, unsigned len, isl_int *lcm)
+{
+	int i;
+
+	if (len == 0) {
+		isl_int_set_si(*lcm, 1);
+		return;
+	}
+	isl_int_set(*lcm, p[0]);
+	for (i = 1; i < len; ++i)
+		isl_int_lcm(*lcm, *lcm, p[i]);
+}
+
 void isl_seq_inner_product(isl_int *p1, isl_int *p2, unsigned len,
 			   isl_int *prod)
 {
@@ -177,11 +280,9 @@ void isl_seq_inner_product(isl_int *p1, isl_int *p2, unsigned len,
 		isl_int_addmul(*prod, p1[i], p2[i]);
 }
 
-uint32_t isl_seq_hash(isl_int *p, unsigned len, unsigned bits)
+uint32_t isl_seq_hash(isl_int *p, unsigned len, uint32_t hash)
 {
 	int i;
-	uint32_t hash = 2166136261u;
-
 	for (i = 0; i < len; ++i) {
 		if (isl_int_is_zero(p[i]))
 			continue;
@@ -189,9 +290,32 @@ uint32_t isl_seq_hash(isl_int *p, unsigned len, unsigned bits)
 		hash ^= (i & 0xFF);
 		hash = isl_int_hash(p[i], hash);
 	}
-	if (bits == 32)
-		return hash;
-	if (bits >= 16)
-		return (hash >> bits) ^ (hash & (((uint32_t)1 << bits) - 1));
-	return ((hash >> bits) ^ hash) & (((uint32_t)1 << bits) - 1);
+	return hash;
+}
+
+uint32_t isl_seq_get_hash(isl_int *p, unsigned len)
+{
+	uint32_t hash = isl_hash_init();
+
+	return isl_seq_hash(p, len, hash);
+}
+
+uint32_t isl_seq_get_hash_bits(isl_int *p, unsigned len, unsigned bits)
+{
+	uint32_t hash;
+
+	hash = isl_seq_get_hash(p, len);
+	return isl_hash_bits(hash, bits);
+}
+
+void isl_seq_dump(isl_int *p, unsigned len)
+{
+	int i;
+
+	for (i = 0; i < len; ++i) {
+		if (i)
+			fprintf(stderr, " ");
+		isl_int_print(stderr, p[i], 0);
+	}
+	fprintf(stderr, "\n");
 }