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save callee-save registers

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This commit is contained in:
Quentin Carbonneaux 2015-09-20 17:46:17 -04:00
parent dab9590ce7
commit 9fcad221d0
4 changed files with 50 additions and 23 deletions
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17
lisc/lisc.h
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@ -5,6 +5,7 @@
#include <string.h>
typedef unsigned int uint;
typedef unsigned long long ulong;
typedef struct Bits Bits;
typedef struct Ref Ref;
@ -45,6 +46,7 @@ enum Reg {
NReg = R12 - RAX + 1,
NRSave = 9,
NRClob = 5,
};
enum {
@ -61,12 +63,13 @@ enum {
};
struct Bits {
uint64_t t[BITS];
ulong t[BITS];
};
#define BIT(n) (1ull << (n))
#define BGET(b, n) (1&((b).t[n/NBit]>>(n%NBit)))
#define BSET(b, n) ((b).t[n/NBit] |= 1ll<<(n%NBit))
#define BCLR(b, n) ((b).t[n/NBit] &= ~(1ll<<(n%NBit)))
#define BSET(b, n) ((b).t[n/NBit] |= BIT(n%NBit))
#define BCLR(b, n) ((b).t[n/NBit] &= ~BIT(n%NBit))
struct Ref {
uint16_t type:2;
@ -240,6 +243,7 @@ struct Fn {
int ncon;
int nblk;
Blk **rpo;
ulong reg;
int svec[NAlign];
char name[NString];
};
@ -280,9 +284,10 @@ void filllive(Fn *);
/* isel.c */
extern int rsave[NRSave];
uint64_t calldef(Ins, int *);
uint64_t calluse(Ins, int *);
uint64_t callclb(Ins, int *);
extern int rclob[NRClob];
ulong calldef(Ins, int *);
ulong calluse(Ins, int *);
ulong callclb(Ins, int *);
int slota(int, int, int *);
void isel(Fn *);