From 8268ba3f856e66c11bf3944604e4ea4da1fc54be Mon Sep 17 00:00:00 2001
From: Ahmet Inan <inan@aicodix.de>
Date: Thu, 27 Sep 2018 10:06:09 +0200
Subject: [PATCH] moved code[j] out of the inner loop

---
 bose_chaudhuri_hocquenghem_decoder.hh | 12 ++++++++----
 reed_solomon_decoder.hh               |  6 ++++--
 2 files changed, 12 insertions(+), 6 deletions(-)

diff --git a/bose_chaudhuri_hocquenghem_decoder.hh b/bose_chaudhuri_hocquenghem_decoder.hh
index 2ab1e13..fedb0a1 100644
--- a/bose_chaudhuri_hocquenghem_decoder.hh
+++ b/bose_chaudhuri_hocquenghem_decoder.hh
@@ -24,12 +24,14 @@ public:
 	int compute_syndromes(uint8_t *code, ValueType *syndromes)
 	{
 		// $syndromes_i = code(pe^{FCR+i})$
+		ValueType coeff(get_be_bit(code, 0));
 		for (int i = 0; i < NR; ++i)
-			syndromes[i] = ValueType(get_be_bit(code, 0));
+			syndromes[i] = coeff;
 		for (int j = 1; j < N; ++j) {
+			ValueType coeff(get_be_bit(code, j));
 			IndexType root(FCR), pe(1);
 			for (int i = 0; i < NR; ++i) {
-				syndromes[i] = fma(root, syndromes[i], ValueType(get_be_bit(code, j)));
+				syndromes[i] = fma(root, syndromes[i], coeff);
 				root *= pe;
 			}
 		}
@@ -81,12 +83,14 @@ public:
 	int compute_syndromes(ValueType *code, ValueType *syndromes)
 	{
 		// $syndromes_i = code(pe^{FCR+i})$
+		ValueType coeff(code[0]);
 		for (int i = 0; i < NR; ++i)
-			syndromes[i] = code[0];
+			syndromes[i] = coeff;
 		for (int j = 1; j < N; ++j) {
+			ValueType coeff(code[j]);
 			IndexType root(FCR), pe(1);
 			for (int i = 0; i < NR; ++i) {
-				syndromes[i] = fma(root, syndromes[i], code[j]);
+				syndromes[i] = fma(root, syndromes[i], coeff);
 				root *= pe;
 			}
 		}
diff --git a/reed_solomon_decoder.hh b/reed_solomon_decoder.hh
index 02a2f78..2334880 100644
--- a/reed_solomon_decoder.hh
+++ b/reed_solomon_decoder.hh
@@ -23,12 +23,14 @@ public:
 	int compute_syndromes(ValueType *code, ValueType *syndromes)
 	{
 		// $syndromes_i = code(pe^{FCR+i})$
+		ValueType coeff(code[0]);
 		for (int i = 0; i < NR; ++i)
-			syndromes[i] = code[0];
+			syndromes[i] = coeff;
 		for (int j = 1; j < N; ++j) {
+			ValueType coeff(code[j]);
 			IndexType root(FCR), pe(1);
 			for (int i = 0; i < NR; ++i) {
-				syndromes[i] = fma(root, syndromes[i], code[j]);
+				syndromes[i] = fma(root, syndromes[i], coeff);
 				root *= pe;
 			}
 		}