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-rw-r--r--deps/lightrec/regcache.h74
1 files changed, 74 insertions, 0 deletions
diff --git a/deps/lightrec/regcache.h b/deps/lightrec/regcache.h
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+/*
+ * Copyright (C) 2014 Paul Cercueil <paul@crapouillou.net>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ */
+
+#ifndef __REGCACHE_H__
+#define __REGCACHE_H__
+
+#include "lightrec-private.h"
+
+#define NUM_REGS (JIT_V_NUM - 2)
+#define NUM_TEMPS (JIT_R_NUM)
+#define LIGHTREC_REG_STATE (JIT_V(JIT_V_NUM - 1))
+#define LIGHTREC_REG_CYCLE (JIT_V(JIT_V_NUM - 2))
+
+#define REG_LO 32
+#define REG_HI 33
+
+struct register_value {
+ _Bool known;
+ u32 value;
+};
+
+struct native_register;
+struct regcache;
+
+u8 lightrec_alloc_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg);
+u8 lightrec_alloc_reg_temp(struct regcache *cache, jit_state_t *_jit);
+u8 lightrec_alloc_reg_out(struct regcache *cache, jit_state_t *_jit, u8 reg);
+u8 lightrec_alloc_reg_in(struct regcache *cache, jit_state_t *_jit, u8 reg);
+u8 lightrec_alloc_reg_out_ext(struct regcache *cache,
+ jit_state_t *_jit, u8 reg);
+u8 lightrec_alloc_reg_in_ext(struct regcache *cache, jit_state_t *_jit, u8 reg);
+
+u8 lightrec_request_reg_in(struct regcache *cache, jit_state_t *_jit,
+ u8 reg, u8 jit_reg);
+
+void lightrec_regcache_reset(struct regcache *cache);
+
+void lightrec_lock_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg);
+void lightrec_free_reg(struct regcache *cache, u8 jit_reg);
+void lightrec_free_regs(struct regcache *cache);
+void lightrec_clean_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg);
+void lightrec_clean_regs(struct regcache *cache, jit_state_t *_jit);
+void lightrec_unload_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg);
+void lightrec_storeback_regs(struct regcache *cache, jit_state_t *_jit);
+
+void lightrec_clean_reg_if_loaded(struct regcache *cache, jit_state_t *_jit,
+ u8 reg, _Bool unload);
+
+u8 lightrec_alloc_reg_in_address(struct regcache *cache,
+ jit_state_t *_jit, u8 reg, s16 offset);
+
+struct native_register * lightrec_regcache_enter_branch(struct regcache *cache);
+void lightrec_regcache_leave_branch(struct regcache *cache,
+ struct native_register *regs);
+
+struct regcache * lightrec_regcache_init(struct lightrec_state *state);
+void lightrec_free_regcache(struct regcache *cache);
+
+const char * lightrec_reg_name(u8 reg);
+
+void lightrec_regcache_mark_live(struct regcache *cache, jit_state_t *_jit);
+
+#endif /* __REGCACHE_H__ */