Speed up x86-64 validator by inlining heavily called routines. Speeds up

src/trusted/validator/x86/x86_insts_inl.c

+/*
+ * Copyright (c) 2011 The Native Client Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/*
+ * x86_insts.h - Holds inline routines for commonly used (simple)
+ * functions in x86_insts.h. Used to speed up code. Inlined routines
+ * correspond to the following functions in x86_insts.h, but with an
+ * 'Inline' suffix:
+ *
+ *   modrm_mod
+ *   modrm_rm
+ *   modrm_reg
+ *   modrm_opcode
+ */
+
+#ifndef NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_X86_INSTS_INL_H__
+#define NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_X86_INSTS_INL_H__
+
+#include "native_client/src/trusted/validator/x86/x86_insts.h"
+
+/* Accessors for the ModRm byte. */
+static INLINE uint8_t modrm_modInline(uint8_t modrm) {
+  return ((modrm >> 6) & 0x03);
+}
+
+static INLINE uint8_t modrm_rmInline(uint8_t modrm) {
+  return (modrm & 0x07);
+}
+
+static INLINE uint8_t modrm_regInline(uint8_t modrm) {
+  return ((modrm >> 3) & 0x07);
+}
+
+static INLINE uint8_t modrm_opcodeInline(uint8_t modrm) {
+  return modrm_regInline(modrm);
+}
+
+#endif  /* NATIVE_CLIENT_SRC_TRUSTED_VALIDATOR_X86_X86_INSTS_INL_H__ */