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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 | |
cb72ea13 PC |
11 | #if defined(__sh__) |
12 | # define NUM_REGS JIT_V_NUM | |
13 | # define LIGHTREC_REG_STATE _GBR | |
14 | #else | |
15 | # define NUM_REGS (JIT_V_NUM - 1) | |
16 | # define LIGHTREC_REG_STATE (JIT_V(JIT_V_NUM - 1)) | |
17 | #endif | |
ba3814c1 PC |
18 | |
19 | #if defined(__powerpc__) | |
20 | # define NUM_TEMPS JIT_R_NUM | |
21 | /* JIT_R0 is callee-saved on PowerPC, we have to use something else */ | |
22 | # define LIGHTREC_REG_CYCLE _R10 | |
23 | # define FIRST_TEMP 0 | |
24 | #else | |
25 | # define NUM_TEMPS (JIT_R_NUM - 1) | |
26 | # define LIGHTREC_REG_CYCLE JIT_R0 | |
27 | # define FIRST_TEMP 1 | |
28 | #endif | |
29 | ||
30 | #include "lightrec-private.h" | |
31 | ||
32 | #define FIRST_REG 0 | |
d16005f8 | 33 | |
98fa08a5 PC |
34 | /* Flags for lightrec_alloc_reg_in / lightrec_alloc_reg_out. */ |
35 | #define REG_EXT BIT(0) /* register is sign-extended */ | |
36 | #define REG_ZEXT BIT(1) /* register is zero-extended */ | |
d16005f8 PC |
37 | |
38 | struct register_value { | |
39 | _Bool known; | |
40 | u32 value; | |
41 | }; | |
42 | ||
43 | struct native_register; | |
44 | struct regcache; | |
45 | ||
46 | u8 lightrec_alloc_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg); | |
47 | u8 lightrec_alloc_reg_temp(struct regcache *cache, jit_state_t *_jit); | |
98fa08a5 | 48 | u8 lightrec_alloc_reg_out(struct regcache *cache, jit_state_t *_jit, |
9259d748 | 49 | u16 reg, u8 flags); |
98fa08a5 | 50 | u8 lightrec_alloc_reg_in(struct regcache *cache, jit_state_t *_jit, |
9259d748 | 51 | u16 reg, u8 flags); |
d16005f8 | 52 | |
9259d748 PC |
53 | void lightrec_load_imm(struct regcache *cache, |
54 | jit_state_t *_jit, u8 jit_reg, u32 pc, u32 imm); | |
55 | void lightrec_load_next_pc(struct regcache *cache, jit_state_t *_jit, u8 reg); | |
56 | void lightrec_load_next_pc_imm(struct regcache *cache, | |
57 | jit_state_t *_jit, u32 pc, u32 imm); | |
d16005f8 | 58 | |
ba3814c1 PC |
59 | s8 lightrec_get_reg_with_value(struct regcache *cache, intptr_t value); |
60 | void lightrec_temp_set_value(struct regcache *cache, u8 jit_reg, intptr_t value); | |
61 | ||
98fa08a5 PC |
62 | u8 lightrec_get_reg_in_flags(struct regcache *cache, u8 jit_reg); |
63 | void lightrec_set_reg_out_flags(struct regcache *cache, u8 jit_reg, u8 flags); | |
64 | ||
d16005f8 | 65 | void lightrec_regcache_reset(struct regcache *cache); |
0e720fb1 | 66 | void lightrec_preload_pc(struct regcache *cache, jit_state_t *_jit); |
d16005f8 | 67 | |
d16005f8 PC |
68 | void lightrec_free_reg(struct regcache *cache, u8 jit_reg); |
69 | void lightrec_free_regs(struct regcache *cache); | |
70 | void lightrec_clean_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg); | |
71 | void lightrec_clean_regs(struct regcache *cache, jit_state_t *_jit); | |
72 | void lightrec_unload_reg(struct regcache *cache, jit_state_t *_jit, u8 jit_reg); | |
73 | void lightrec_storeback_regs(struct regcache *cache, jit_state_t *_jit); | |
ba3814c1 | 74 | _Bool lightrec_has_dirty_regs(struct regcache *cache); |
d16005f8 | 75 | |
cb72ea13 | 76 | _Bool lightrec_reg_is_loaded(struct regcache *cache, u16 reg); |
d16005f8 | 77 | void lightrec_clean_reg_if_loaded(struct regcache *cache, jit_state_t *_jit, |
9259d748 PC |
78 | u16 reg, _Bool unload); |
79 | void lightrec_discard_reg_if_loaded(struct regcache *cache, u16 reg); | |
d16005f8 PC |
80 | |
81 | u8 lightrec_alloc_reg_in_address(struct regcache *cache, | |
9259d748 | 82 | jit_state_t *_jit, u16 reg, s16 offset); |
d16005f8 PC |
83 | |
84 | struct native_register * lightrec_regcache_enter_branch(struct regcache *cache); | |
85 | void lightrec_regcache_leave_branch(struct regcache *cache, | |
86 | struct native_register *regs); | |
87 | ||
88 | struct regcache * lightrec_regcache_init(struct lightrec_state *state); | |
89 | void lightrec_free_regcache(struct regcache *cache); | |
90 | ||
cb72ea13 | 91 | __cnst const char * lightrec_reg_name(u8 reg); |
d16005f8 PC |
92 | |
93 | void lightrec_regcache_mark_live(struct regcache *cache, jit_state_t *_jit); | |
94 | ||
95 | #endif /* __REGCACHE_H__ */ |