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| author | Quentin Carbonneaux <quentin.carbonneaux@yale.edu> | 2015-08-16 12:41:06 -0400 |
|---|---|---|
| committer | Quentin Carbonneaux <quentin.carbonneaux@yale.edu> | 2015-09-15 23:01:31 -0400 |
| commit | 27f4eae43eebb4990bad59c8becdca41d2fb865d (patch) | |
| tree | 4873311a650c7ff32b050394f4f7f074476dee88 /lisc/rega.c | |
| parent | e1725c0cdd15d7fea5beefec24759cc15825ead1 (diff) | |
| download | roux-27f4eae43eebb4990bad59c8becdca41d2fb865d.tar.gz | |
remove round-robin in ralloc (need preferences)
Diffstat (limited to 'lisc/rega.c')
| -rw-r--r-- | lisc/rega.c | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/lisc/rega.c b/lisc/rega.c index d6445c3..dc01ce0 100644 --- a/lisc/rega.c +++ b/lisc/rega.c @@ -73,8 +73,7 @@ radd(RMap *m, int t, int r) static Ref ralloc(RMap *m, int t) { - static int x; - int n, r; + int r; if (t < Tmp0) { assert(BGET(m->b, RBASE(t))); @@ -86,13 +85,9 @@ ralloc(RMap *m, int t) } else { r = tmp[t].hint; if (r == -1 || BGET(m->b, r)) - for (n=0;; x=(x+1)%NReg, n++) { - if (n > NReg) + for (r=RAX; BGET(m->b, r); r++) + if (r+1 == RAX+NReg) diag("rega: no more regs"); - r = RAX + x; - if (!BGET(m->b, r)) - break; - } radd(m, t, r); if (tmp[t].hint == -1) tmp[t].hint = r; |