i965/cfg: Document cur_* variables.
Reviewed-by: Eric Anholt <eric@anholt.net>
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@ -88,8 +88,11 @@ cfg_t::cfg_t(exec_list *instructions)
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int ip = 0;
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bblock_t *entry = new_block();
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bblock_t *cur_if = NULL, *cur_else = NULL, *cur_endif = NULL;
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bblock_t *cur_do = NULL, *cur_while = NULL;
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bblock_t *cur_if = NULL; /**< BB ending with IF. */
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bblock_t *cur_else = NULL; /**< BB ending with ELSE. */
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bblock_t *cur_endif = NULL; /**< BB starting with ENDIF. */
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bblock_t *cur_do = NULL; /**< BB ending with DO. */
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bblock_t *cur_while = NULL; /**< BB immediately following WHILE. */
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exec_list if_stack, else_stack, do_stack, while_stack;
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bblock_t *next;
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