diff options
Diffstat (limited to 'lisc')
| -rw-r--r-- | lisc/lisc.h | 13 | ||||
| -rw-r--r-- | lisc/parse.c | 32 |
2 files changed, 23 insertions, 22 deletions
diff --git a/lisc/lisc.h b/lisc/lisc.h index a26dc1e..7978c17 100644 --- a/lisc/lisc.h +++ b/lisc/lisc.h @@ -16,7 +16,7 @@ typedef unsigned char uchar; enum { R = 0, /* invalid reference */ NRegs = 32, - Temp0 = NRegs+1, + Tmp0 = NRegs+1, NString = 32, NPreds = 15, NBlks = 128, @@ -32,7 +32,7 @@ typedef struct Fn Fn; typedef ushort Ref; enum { - RTemp = 0, + RSym = 0, RConst = 1, RMask = 1, @@ -40,7 +40,7 @@ enum { NRefs = ((ushort)-1)>>RShift, }; -#define TEMP(x) (((x)<<RShift) | RTemp) +#define SYM(x) (((x)<<RShift) | RSym) #define CONST(x) (((x)<<RShift) | RConst) enum { @@ -88,17 +88,17 @@ struct Blk { Blk *s2; Blk *link; - char name[NString]; int rpo; Blk **preds; int npreds; + char name[NString]; }; struct Sym { enum { SUndef, SReg, - STemp, + STmp, } type; char name[NString]; Blk *blk; @@ -108,7 +108,7 @@ struct Sym { struct Fn { Blk *start; Sym *sym; - int ntemp; + int ntmp; int nblk; Blk **rpo; }; @@ -121,3 +121,4 @@ Fn *parsefn(FILE *); /* ssa.c */ void fillpreds(Fn *); void fillrpo(Fn *); +void ssafix(Fn *, int); diff --git a/lisc/parse.c b/lisc/parse.c index e17c264..ab6c0e5 100644 --- a/lisc/parse.c +++ b/lisc/parse.c @@ -6,7 +6,7 @@ #include "lisc.h" enum { - NTemps = 256, + NSyms = 256, }; typedef enum { @@ -44,8 +44,8 @@ typedef enum { static FILE *inf; static Token thead; -static Sym sym[NTemps]; -static Ref ntemp; +static Sym sym[NSyms]; +static Ref ntmp; static Phi phi[NPhis], *curp; static Ins ins[NInss], *curi; static struct { @@ -213,17 +213,17 @@ varref(char *v) { int t; - for (t=Temp0; t<ntemp; t++) - if (sym[t].type == STemp) + for (t=Tmp0; t<ntmp; t++) + if (sym[t].type == STmp) if (strcmp(v, sym[t].name) == 0) - return TEMP(t); - if (t >= NTemps) - err("too many temporaries"); - sym[t].type = STemp; + return SYM(t); + if (t >= NSyms) + err("too many symbols"); + sym[t].type = STmp; strcpy(sym[t].name, v); sym[t].blk = 0; - ntemp++; - return TEMP(t); + ntmp++; + return SYM(t); } static Ref @@ -435,12 +435,12 @@ parsefn(FILE *f) bmap[i].name[0] = 0; bmap[i].blk = 0; } - for (i=Temp0; i<NTemps; i++) { + for (i=Tmp0; i<NSyms; i++) { sym[i].type = SUndef; sym[i].name[0] = 0; sym[i].blk = 0; } - ntemp = Temp0; + ntmp = Tmp0; curp = phi; curi = ins; curb = 0; @@ -452,9 +452,9 @@ parsefn(FILE *f) do ps = parseline(ps); while (ps != PEnd); - fn->sym = alloc(ntemp * sizeof sym[0]); - memcpy(fn->sym, sym, ntemp * sizeof sym[0]); - fn->ntemp = ntemp; + fn->sym = alloc(ntmp * sizeof sym[0]); + memcpy(fn->sym, sym, ntmp * sizeof sym[0]); + fn->ntmp = ntmp; fn->nblk = nblk; fn->rpo = 0; return fn; |