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-rw-r--r--src/math/log_data.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/src/math/log_data.h b/src/math/log_data.h
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+++ b/src/math/log_data.h
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+/*
+ * Copyright (c) 2018, Arm Limited.
+ * SPDX-License-Identifier: MIT
+ */
+#ifndef _LOG_DATA_H
+#define _LOG_DATA_H
+
+#include <features.h>
+
+#define LOG_TABLE_BITS 7
+#define LOG_POLY_ORDER 6
+#define LOG_POLY1_ORDER 12
+extern hidden const struct log_data {
+	double ln2hi;
+	double ln2lo;
+	double poly[LOG_POLY_ORDER - 1]; /* First coefficient is 1.  */
+	double poly1[LOG_POLY1_ORDER - 1];
+	struct {
+		double invc, logc;
+	} tab[1 << LOG_TABLE_BITS];
+#if !__FP_FAST_FMA
+	struct {
+		double chi, clo;
+	} tab2[1 << LOG_TABLE_BITS];
+#endif
+} __log_data;
+
+#endif