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start work on spiller

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This commit is contained in:
Quentin Carbonneaux 2015-07-20 17:53:58 -04:00
parent 32cb8d315a
commit 73add5daae
2 changed files with 241 additions and 4 deletions
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17
lisc/lisc.h
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@ -32,11 +32,11 @@ enum {
R13,
R14,
R15,
NReg = R15 - RAX + 1
};
enum {
NReg = 32,
Tmp0 = NReg+1,
Tmp0 = 33,
NString = 32,
NPred = 15,
@ -44,11 +44,11 @@ enum {
NIns = 256,
BITS = 4,
NBit = 8 * sizeof(unsigned long long),
NBit = 8 * sizeof(uint64_t),
};
struct Bits {
unsigned long long t[BITS];
uint64_t t[BITS];
};
#define BGET(b, n) (1&((b).t[n/NBit]>>(n%NBit)))
@ -131,6 +131,7 @@ struct Blk {
Blk **pred;
uint npred;
Bits in, out;
int loop;
char name[NString];
int id;
};
@ -143,6 +144,7 @@ struct Sym {
} type;
char name[NString];
uint ndef, nuse;
int cost;
};
struct Fn {
@ -168,3 +170,10 @@ void ssafix(Fn *, int);
/* live.c */
void filllive(Fn *);
/* isel.c */
void isel(Fn *);
/* spill.c */
void fillcost(Fn *);
void spill(Fn *);