From e0f4d5dec9038f2c436ca25e7572a4e0ba9208f0 Mon Sep 17 00:00:00 2001
From: Sebastian Buchwald <Sebastian.Buchwald@kit.edu>
Date: Tue, 30 Sep 2008 10:48:57 +0000
Subject: [PATCH] Use PBQP heuristic at shift const and afterwards at computed
 value.

[r22362]
---
 ir/be/test/pbqpHeur2.c | 44 ++++++++++++++++++++++++++++++++++++++----
 1 file changed, 40 insertions(+), 4 deletions(-)

diff --git a/ir/be/test/pbqpHeur2.c b/ir/be/test/pbqpHeur2.c
index 10ca40716..59ff94570 100644
--- a/ir/be/test/pbqpHeur2.c
+++ b/ir/be/test/pbqpHeur2.c
@@ -1,3 +1,4 @@
+unsigned *block;
 unsigned *block1, *block2, *block3, *block4, *block5;
 volatile unsigned arr[100];
 unsigned ca,cb,cc;
@@ -32,8 +33,38 @@ unsigned k3_3(char* base, unsigned i1, unsigned i2, unsigned i3, unsigned k1, un
 	return 0;
 }
 
+unsigned k3_3_am(char* base, unsigned i1, unsigned i2, unsigned i3, unsigned k1, unsigned k2, unsigned k3)
+{
+	char a1, a2, a3;
+	char b1, b2, b3;
+	char c1, c2, c3;
+
+	a1 = base[i1 + k1];
+	a2 = base[i2 + k1];
+	a3 = base[i3 + k1];
+
+	b1 = base[i1 + k2];
+	b2 = base[i2 + k2];
+	b3 = base[i3 + k2];
+
+	c1 = base[i1 + k3];
+	c2 = base[i2 + k3];
+	c3 = base[i3 + k3];
+
+	if (a1 != a2)
+		return a3;
+	if (b1 != b2)
+		return b3;
+	if (c1 != c2)
+		return c3;
+
+	return 0;
+}
+
 unsigned g1,g2,g3;
 unsigned h1,h2,h3;
+unsigned h4,h5,h6;
+unsigned h7,h8,h9;
 unsigned k1,k2,k3;
 unsigned k4,k5,k6;
 unsigned k7,k8,k9;
@@ -43,12 +74,17 @@ void full_am(unsigned base, unsigned index)
 {
 	unsigned ca = arr[index] + b;
 
+	/* user for shift const */
+	b = k3_3_am(block, h1, h2, h3, 2, 3, 4);
+	b = k3_3_am(block, h4, h5, h6, 2, 5, 6);
+	b = k3_3_am(block, h7, h8, h9, 2, 7, 8);
+
 	//b = k3_3(base + 4 * index, g1, g2, g3, 1, 2, 3);
-	//b = k3_3(block, h1, h2, h3, 42, 5, 6);
 
-	b = k3_3(block1, ca, k2, k3, 7, 8, 9);
-	b = k3_3(block2, ca, k5, k6, 10, 11, 12);
-	b = k3_3(block3, ca, k8, k9, 13, 14, 15);
+	/* user for computed value */
+	//b = k3_3(block1, ca, k2, k3, 7, 8, 9);
+	//b = k3_3(block2, ca, k5, k6, 10, 11, 12);
+	//b = k3_3(block3, ca, k8, k9, 13, 14, 15);
 	b = k3_3(block4, ca, k11, k12, 16, 17, 18);
 	b = k3_3(block5, ca, k7, k10, 19, 20, 21);
 }
-- 
2.20.1