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98fa08a5 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
d16005f8 | 2 | /* |
98fa08a5 | 3 | * Copyright (C) 2014-2021 Paul Cercueil <paul@crapouillou.net> |
d16005f8 PC |
4 | */ |
5 | ||
6 | #ifndef __REGCACHE_H__ | |
7 | #define __REGCACHE_H__ | |
8 | ||
ba3814c1 | 9 | #include "lightning-wrapper.h" |
d16005f8 | 10 | |
ba3814c1 | 11 | #define NUM_REGS (JIT_V_NUM - 1) |
d16005f8 | 12 | #define LIGHTREC_REG_STATE (JIT_V(JIT_V_NUM - 1)) |
ba3814c1 PC |
13 | |
14 | #if defined(__powerpc__) | |
15 | # define NUM_TEMPS JIT_R_NUM | |
16 | /* JIT_R0 is callee-saved on PowerPC, we have to use something else */ | |
17 | # define LIGHTREC_REG_CYCLE _R10 | |
18 | # define FIRST_TEMP 0 | |
19 | #else | |
20 | # define NUM_TEMPS (JIT_R_NUM - 1) | |
21 | # define LIGHTREC_REG_CYCLE JIT_R0 | |
22 | # define FIRST_TEMP 1 | |
23 | #endif | |
24 | ||
25 | #include "lightrec-private.h" | |
26 | ||
27 | #define FIRST_REG 0 | |
d16005f8 | 28 | |
98fa08a5 PC |
29 | /* Flags for lightrec_alloc_reg_in / lightrec_alloc_reg_out. */ |
30 | #define REG_EXT BIT(0) /* register is sign-extended */ | |
31 | #define REG_ZEXT BIT(1) /* register is zero-extended */ | |
d16005f8 PC |
32 | |
33 | struct register_value { | |
34 | _Bool known; | |
35 | u32 value; | |
36 | }; | |
37 | ||
38 | struct native_register; | |
39 | struct regcache; | |
40 | ||
41 | u8 lightrec_alloc_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg); | |
42 | u8 lightrec_alloc_reg_temp(struct regcache *cache, jit_state_t *_jit); | |
98fa08a5 PC |
43 | u8 lightrec_alloc_reg_out(struct regcache *cache, jit_state_t *_jit, |
44 | u8 reg, u8 flags); | |
45 | u8 lightrec_alloc_reg_in(struct regcache *cache, jit_state_t *_jit, | |
46 | u8 reg, u8 flags); | |
d16005f8 PC |
47 | |
48 | u8 lightrec_request_reg_in(struct regcache *cache, jit_state_t *_jit, | |
49 | u8 reg, u8 jit_reg); | |
50 | ||
ba3814c1 PC |
51 | s8 lightrec_get_reg_with_value(struct regcache *cache, intptr_t value); |
52 | void lightrec_temp_set_value(struct regcache *cache, u8 jit_reg, intptr_t value); | |
53 | ||
98fa08a5 PC |
54 | u8 lightrec_get_reg_in_flags(struct regcache *cache, u8 jit_reg); |
55 | void lightrec_set_reg_out_flags(struct regcache *cache, u8 jit_reg, u8 flags); | |
56 | ||
d16005f8 PC |
57 | void lightrec_regcache_reset(struct regcache *cache); |
58 | ||
59 | void lightrec_lock_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg); | |
60 | void lightrec_free_reg(struct regcache *cache, u8 jit_reg); | |
61 | void lightrec_free_regs(struct regcache *cache); | |
62 | void lightrec_clean_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg); | |
63 | void lightrec_clean_regs(struct regcache *cache, jit_state_t *_jit); | |
64 | void lightrec_unload_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg); | |
65 | void lightrec_storeback_regs(struct regcache *cache, jit_state_t *_jit); | |
ba3814c1 | 66 | _Bool lightrec_has_dirty_regs(struct regcache *cache); |
d16005f8 PC |
67 | |
68 | void lightrec_clean_reg_if_loaded(struct regcache *cache, jit_state_t *_jit, | |
69 | u8 reg, _Bool unload); | |
03535202 | 70 | void lightrec_discard_reg_if_loaded(struct regcache *cache, u8 reg); |
d16005f8 PC |
71 | |
72 | u8 lightrec_alloc_reg_in_address(struct regcache *cache, | |
73 | jit_state_t *_jit, u8 reg, s16 offset); | |
74 | ||
75 | struct native_register * lightrec_regcache_enter_branch(struct regcache *cache); | |
76 | void lightrec_regcache_leave_branch(struct regcache *cache, | |
77 | struct native_register *regs); | |
78 | ||
79 | struct regcache * lightrec_regcache_init(struct lightrec_state *state); | |
80 | void lightrec_free_regcache(struct regcache *cache); | |
81 | ||
82 | const char * lightrec_reg_name(u8 reg); | |
83 | ||
84 | void lightrec_regcache_mark_live(struct regcache *cache, jit_state_t *_jit); | |
85 | ||
86 | #endif /* __REGCACHE_H__ */ |