diff options
| author | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2011-02-22 21:50:17 +0100 |
|---|---|---|
| committer | Christoph Bumiller <e0425955@student.tuwien.ac.at> | 2011-02-24 17:35:35 +0100 |
| commit | f01748355360ac98c772ce8b82ca0e6c2f94629a (patch) | |
| tree | 737bcdc403a345188291b63a04f90f5a3037a600 | |
| parent | cd47f10c901d7ac48843586432c2e592ed35eed3 (diff) | |
nvc0: kick out empty live ranges
They affect overlap tests even though they're actually empty.
| -rw-r--r-- | src/gallium/drivers/nvc0/nvc0_pc_regalloc.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/gallium/drivers/nvc0/nvc0_pc_regalloc.c b/src/gallium/drivers/nvc0/nvc0_pc_regalloc.c index d721394948..f4afe083e2 100644 --- a/src/gallium/drivers/nvc0/nvc0_pc_regalloc.c +++ b/src/gallium/drivers/nvc0/nvc0_pc_regalloc.c @@ -87,6 +87,9 @@ add_range_ex(struct nv_value *val, int bgn, int end, struct nv_range *new_range) { struct nv_range *range, **nextp = &val->livei; + if (bgn == end) /* [a, a) is invalid / empty */ + return TRUE; + for (range = val->livei; range; range = range->next) { if (end < range->bgn) break; /* insert before */ |