ls_expr Struct Reference
Collaboration diagram for ls_expr:
Data Fields | |
| struct expr * | expr |
| rtx | pattern |
| rtx | pattern_regs |
| rtx | loads |
| rtx | stores |
| struct ls_expr * | next |
| int | invalid |
| int | index |
| unsigned int | hash_index |
| rtx | reaching_reg |
Detailed Description
This is a list of expressions which are MEMs and will be used by load or store motion. Load motion tracks MEMs which aren't killed by anything except itself, i.e. loads and stores to a single location. We can then allow movement of these MEM refs with a little special allowance. (all stores copy the same value to the reaching reg used for the loads). This means all values used to store into memory must have no side effects so we can re-issue the setter value.
Field Documentation
| struct expr* ls_expr::expr |
| unsigned int ls_expr::hash_index |
| int ls_expr::index |
| int ls_expr::invalid |
Referenced by one_code_hoisting_pass().
| rtx ls_expr::loads |
Referenced by one_code_hoisting_pass().
| struct ls_expr* ls_expr::next |
| rtx ls_expr::pattern |
| rtx ls_expr::pattern_regs |
| rtx ls_expr::reaching_reg |
| rtx ls_expr::stores |
Referenced by one_code_hoisting_pass().
The documentation for this struct was generated from the following file:
