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| author | Quentin Carbonneaux <quentin.carbonneaux@yale.edu> | 2015-09-27 20:31:07 -0400 |
|---|---|---|
| committer | Quentin Carbonneaux <quentin.carbonneaux@yale.edu> | 2015-09-27 20:31:07 -0400 |
| commit | 538e3aff7fbc820fe72b3f6a89540c102e2da576 (patch) | |
| tree | 44668d19fb16bfda57fbb13bed04a16039334a17 /lisc/live.c | |
| parent | 2273d22ced916fa06a46e3f4894dbb9c04f0c640 (diff) | |
| download | roux-538e3aff7fbc820fe72b3f6a89540c102e2da576.tar.gz | |
compute reg interferences in filllive()
Diffstat (limited to 'lisc/live.c')
| -rw-r--r-- | lisc/live.c | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lisc/live.c b/lisc/live.c index 80bdd75..96472d7 100644 --- a/lisc/live.c +++ b/lisc/live.c @@ -38,8 +38,9 @@ filllive(Fn *f) { Blk *b; Ins *i; - int z, m, n, chg, nlv; + int t, z, m, n, chg, nlv; Bits u, v; + ulong regs; assert(f->ntmp <= NBit*BITS); for (b=f->start; b; b=b->link) { @@ -47,6 +48,8 @@ filllive(Fn *f) b->out = (Bits){{0}}; b->gen = (Bits){{0}}; } + for (t=Tmp0; t<f->ntmp; t++) + f->tmp[t].intr = 0; chg = 1; Again: for (n=f->nblk-1; n>=0; n--) { @@ -87,6 +90,10 @@ Again: bset(i->arg[1], b, &nlv); if (nlv > b->nlive) b->nlive = nlv; + if ((regs = b->in.t[0] & (BIT(Tmp0) - 1))) + for (t=Tmp0; t<f->ntmp; t++) + if (BGET(b->in, t)) + f->tmp[t].intr |= regs; } } if (chg) { |