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add initial version of copy elimination

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This commit is contained in:
Quentin Carbonneaux 2015-11-13 15:22:58 -05:00
parent 8dcf6dceab
commit 0aa9e83211
4 changed files with 171 additions and 4 deletions
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9
lisc/lisc.h
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@ -257,8 +257,8 @@ struct Use {
} type;
int bid;
union {
int ins;
Ref phi;
Ins *ins;
Phi *phi;
} u;
};
@ -371,6 +371,7 @@ void addcon(Con *, Con *);
extern OpDesc opdesc[NOp];
void parse(FILE *, void (Dat *), void (Fn *));
void printfn(Fn *, FILE *);
void printref(Ref, Fn *, FILE *);
/* ssa.c */
void filluse(Fn *);
@ -378,10 +379,14 @@ void fillpreds(Fn *);
void fillrpo(Fn *);
void ssa(Fn *);
/* copy.c */
void copy(Fn *);
/* live.c */
Bits liveon(Blk *, Blk *);
void filllive(Fn *);
/* isel.c */
extern int rsave[NRSave];
extern int rclob[NRClob];