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Move TCGLabelQemuLdst and related stuff out of tcg.h. Signed-off-by: Richard Henderson <rth@twiddle.net>pull/8/head
Richard Henderson
13 years ago
8 changed files with 112 additions and 158 deletions
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/*
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* TCG Backend Data: load-store optimization only. |
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* |
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* Permission is hereby granted, free of charge, to any person obtaining a copy |
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* of this software and associated documentation files (the "Software"), to deal |
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* in the Software without restriction, including without limitation the rights |
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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* copies of the Software, and to permit persons to whom the Software is |
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* furnished to do so, subject to the following conditions: |
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* |
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* The above copyright notice and this permission notice shall be included in |
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* all copies or substantial portions of the Software. |
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* |
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL |
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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* THE SOFTWARE. |
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*/ |
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#ifdef CONFIG_SOFTMMU |
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#define TCG_MAX_QEMU_LDST 640 |
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typedef struct TCGLabelQemuLdst { |
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int is_ld:1; /* qemu_ld: 1, qemu_st: 0 */ |
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int opc:4; |
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TCGReg addrlo_reg; /* reg index for low word of guest virtual addr */ |
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TCGReg addrhi_reg; /* reg index for high word of guest virtual addr */ |
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TCGReg datalo_reg; /* reg index for low word to be loaded or stored */ |
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TCGReg datahi_reg; /* reg index for high word to be loaded or stored */ |
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int mem_index; /* soft MMU memory index */ |
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uint8_t *raddr; /* gen code addr of the next IR of qemu_ld/st IR */ |
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uint8_t *label_ptr[2]; /* label pointers to be updated */ |
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} TCGLabelQemuLdst; |
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typedef struct TCGBackendData { |
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int nb_ldst_labels; |
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TCGLabelQemuLdst ldst_labels[TCG_MAX_QEMU_LDST]; |
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} TCGBackendData; |
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/*
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* Initialize TB backend data at the beginning of the TB. |
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*/ |
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static inline void tcg_out_tb_init(TCGContext *s) |
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{ |
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s->be->nb_ldst_labels = 0; |
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} |
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/*
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* Generate TB finalization at the end of block |
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*/ |
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static void tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l); |
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static void tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l); |
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static void tcg_out_tb_finalize(TCGContext *s) |
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{ |
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TCGLabelQemuLdst *lb = s->be->ldst_labels; |
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int i, n = s->be->nb_ldst_labels; |
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/* qemu_ld/st slow paths */ |
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for (i = 0; i < n; i++) { |
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if (lb[i].is_ld) { |
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tcg_out_qemu_ld_slow_path(s, lb + i); |
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} else { |
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tcg_out_qemu_st_slow_path(s, lb + i); |
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} |
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} |
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} |
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/*
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* Allocate a new TCGLabelQemuLdst entry. |
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*/ |
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static inline TCGLabelQemuLdst *new_ldst_label(TCGContext *s) |
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{ |
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TCGBackendData *be = s->be; |
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int n = be->nb_ldst_labels; |
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assert(n < TCG_MAX_QEMU_LDST); |
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be->nb_ldst_labels = n + 1; |
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return &be->ldst_labels[n]; |
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} |
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#else |
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#include "tcg-be-null.h" |
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#endif /* CONFIG_SOFTMMU */ |
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