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intern symbol names

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Symbols in the source file are still limited in
length because the rest of the code assumes that
strings always fit in NString bytes.

Regardless, there is already a benefit because
comparing/copying symbol names does not require
using strcmp()/strcpy() anymore.
This commit is contained in:
Quentin Carbonneaux 2017-05-17 09:40:07 -04:00
parent 2d02070af0
commit a3a1451c5f
10 changed files with 143 additions and 87 deletions
Download patch file Download diff file Expand all files Collapse all files

8
amd64/emit.c
View file

@ -161,12 +161,12 @@ slot(int s, Fn *fn)
static void
emitcon(Con *con, FILE *f)
{
char *p;
switch (con->type) {
case CAddr:
if (con->local)
fprintf(f, "%s%s", gasloc, con->label);
else
fprintf(f, "%s%s", gassym, con->label);
p = con->local ? gasloc : gassym;
fprintf(f, "%s%s", p, str(con->label));
if (con->bits.i)
fprintf(f, "%+"PRId64, con->bits.i);
break;

4
amd64/isel.c
View file

@ -61,6 +61,7 @@ rslot(Ref r, Fn *fn)
static void
fixarg(Ref *r, int k, int op, Fn *fn)
{
char buf[32];
Addr a, *m;
Ref r0, r1;
int s, n, cpy, mem;
@ -80,7 +81,8 @@ fixarg(Ref *r, int k, int op, Fn *fn)
a.offset.type = CAddr;
a.offset.local = 1;
n = gasstashfp(fn->con[r0.val].bits.i, KWIDE(k));
sprintf(a.offset.label, "fp%d", n);
sprintf(buf, "fp%d", n);
a.offset.label = intern(buf);
fn->mem[fn->nmem-1] = a;
}
else if (!cpy && k == Kl && noimm(r0, fn)) {