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make rsp and rbp globally live

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This commit is contained in:
Quentin Carbonneaux 2017-02-07 22:49:17 -05:00
parent c71f44c5a8
commit 8799dc30ac
5 changed files with 40 additions and 37 deletions
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31
all.h
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@ -29,6 +29,18 @@ typedef struct Typ Typ;
typedef struct Seg Seg;
typedef struct Dat Dat;
enum {
NString = 32,
NPred = 63,
NIns = 8192,
NAlign = 3,
NSeg = 32,
NTyp = 128,
NBit = CHAR_BIT * sizeof(bits),
};
#define BIT(n) ((bits)1 << (n))
enum Reg {
RXX,
@ -48,8 +60,9 @@ enum Reg {
R14,
R15,
RBP, /* reserved */
RBP, /* globally live */
RSP,
#define RGLOB (BIT(RBP)|BIT(RSP))
XMM0, /* sse */
XMM1,
@ -70,7 +83,8 @@ enum Reg {
Tmp0, /* first non-reg temporary */
NIReg = R15 - RAX + 1,
NRGlob = 2,
NIReg = R15 - RAX + 1 + NRGlob,
NFReg = XMM14 - XMM0 + 1, /* XMM15 is reserved */
NISave = R11 - RAX + 1,
NFSave = NFReg,
@ -78,19 +92,8 @@ enum Reg {
NRClob = R15 - RBX + 1,
};
enum {
NString = 32,
NPred = 63,
NIns = 8192,
NAlign = 3,
NSeg = 32,
NTyp = 128,
NBit = CHAR_BIT * sizeof(bits),
};
MAKESURE(NBit_is_enough, NBit >= (int)Tmp0);
#define BIT(n) ((bits)1 << (n))
struct BSet {
uint nt;
@ -388,7 +391,7 @@ struct Tmp {
Use *use;
uint ndef, nuse;
uint cost;
short slot;
short slot; /* -1 for unset */
short cls;
struct {
int r;