From f9570e5089eeabe32be84ab0507c1d9df99650af Mon Sep 17 00:00:00 2001
From: Sebastiano Tronto <sebastiano@tronto.net>
Date: Wed, 16 Oct 2024 11:46:33 +0200
Subject: Removed redundant coordinate computation

---
 src/solvers/h48/gendata_h48.h | 16 ----------------
 src/solvers/h48/solve.h       | 16 ++++++++++------
 src/solvers/h48/stats.h       |  2 +-
 3 files changed, 11 insertions(+), 23 deletions(-)

(limited to 'src/solvers/h48')

diff --git a/src/solvers/h48/gendata_h48.h b/src/solvers/h48/gendata_h48.h
index 4400011..55c4f34 100644
--- a/src/solvers/h48/gendata_h48.h
+++ b/src/solvers/h48/gendata_h48.h
@@ -24,8 +24,6 @@ STATIC_INLINE uint8_t get_h48_pval_atomic(
     _Atomic const uint8_t *, int64_t, uint8_t);
 STATIC_INLINE void set_h48_pval_atomic(
     _Atomic uint8_t *, int64_t, uint8_t, uint8_t);
-STATIC_INLINE uint8_t get_h48_bound(
-    cube_t, uint32_t, uint8_t, uint8_t, const uint8_t *);
 
 size_t gendata_h48_derive(uint8_t, const void *, void *);
 
@@ -686,20 +684,6 @@ set_h48_pval_atomic(_Atomic uint8_t *table, int64_t i, uint8_t k, uint8_t val)
 	    | (val << H48_SHIFT(i, k));
 }
 
-STATIC_INLINE uint8_t
-get_h48_bound(
-	cube_t cube,
-	uint32_t cdata,
-	uint8_t h,
-	uint8_t k,
-	const uint8_t *table
-) {
-	int64_t coord;
-
-	coord = coord_h48_edges(cube, COCLASS(cdata), TTREP(cdata), h);
-	return get_h48_pval(table, coord, k);
-}
-
 size_t
 gendata_h48_derive(uint8_t h, const void *fulltable, void *buf)
 {
diff --git a/src/solvers/h48/solve.h b/src/solvers/h48/solve.h
index 0723fb6..778155c 100644
--- a/src/solvers/h48/solve.h
+++ b/src/solvers/h48/solve.h
@@ -101,6 +101,7 @@ solve_h48_stop(dfsarg_solveh48_t *arg)
 {
 	uint32_t data, data_inv;
 	int8_t cbound, cbound_inv, h48bound, h48bound_inv;
+	int64_t coord, coord_inv;
 
 	arg->nissbranch = MM_NORMAL;
 	cbound = get_h48_cdata(arg->cube, arg->cocsepdata, &data);
@@ -111,15 +112,16 @@ solve_h48_stop(dfsarg_solveh48_t *arg)
 	if (cbound_inv + arg->nmoves + arg->npremoves > arg->depth)
 		return true;
 
-	h48bound = get_h48_bound(arg->cube, data, arg->h, arg->k, arg->h48data);
+	coord = coord_h48_edges(arg->cube, COCLASS(data), TTREP(data), arg->h);
+	h48bound = get_h48_pval(arg->h48data, coord, arg->k);
 
 	/* If the h48 bound is > 0, we add the base value.    */
 	/* Otherwise, we use the fallback h0k4 value instead. */
 
 	if (arg->k == 2) {
 		if (h48bound == 0) {
-			h48bound = get_h48_bound(
-			    arg->cube, data, 0, 4, arg->h48data_fallback);
+			h48bound = get_h48_pval(
+			    arg->h48data_fallback, coord >> arg->h, 4);
 		} else {
 			h48bound += arg->base;
 		}
@@ -129,11 +131,13 @@ solve_h48_stop(dfsarg_solveh48_t *arg)
 	if (h48bound + arg->nmoves + arg->npremoves == arg->depth)
 		arg->nissbranch = MM_INVERSEBRANCH;
 
-	h48bound_inv = get_h48_bound(arg->inverse, data_inv, arg->h, arg->k, arg->h48data);
+	coord_inv = coord_h48_edges(
+	    arg->inverse, COCLASS(data_inv), TTREP(data_inv), arg->h);
+	h48bound_inv = get_h48_pval(arg->h48data, coord_inv, arg->k);
 	if (arg->k == 2) {
 		if (h48bound_inv == 0) {
-			h48bound_inv = get_h48_bound(
-			    arg->inverse, data_inv, 0, 4, arg->h48data_fallback);
+			h48bound_inv = get_h48_pval(
+			    arg->h48data_fallback, coord_inv >> arg->h, 4);
 		} else {
 			h48bound_inv += arg->base;
 		}
diff --git a/src/solvers/h48/stats.h b/src/solvers/h48/stats.h
index cc51bd9..2a7e887 100644
--- a/src/solvers/h48/stats.h
+++ b/src/solvers/h48/stats.h
@@ -36,7 +36,7 @@ solve_h48stats_dfs(dfsarg_solveh48stats_t *arg)
 
 	/* Check h48 lower bound for h=0 (esep, but no eo) */
 	coord = coord_h48_edges(arg->cube, COCLASS(d), TTREP(d), 0);
-	bound = get_h48_bound(arg->cube, d, 0, 4, arg->h48data);
+	bound = get_h48_pval(arg->h48data, coord, 4);
 	if (bound + arg->nmoves > arg->depth)
 		return 0;
 	
-- 
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