diff options
| author | Timothy Arceri <[email protected]> | 2017-01-03 12:03:54 +1100 |
|---|---|---|
| committer | Timothy Arceri <[email protected]> | 2017-01-04 14:48:36 +1100 |
| commit | 4b7dfd881296a542a0c08a12c27f643dabd7280c (patch) | |
| tree | deb00fa9d5298ca87310fd7ae789ed4903b66490 | |
| parent | abcaba497d8c90a1e9dcede71261bdee16e2ed4e (diff) | |
nir: fix loop iteration count calculation for floats
Fixes performance regression in SynMark PSPom caused by loops with float
counters not always unrolling.
For example:
for (float i = 0.02; i < 0.9; i += 0.11)
...
Reviewed-by: Jason Ekstrand <[email protected]>
| -rw-r--r-- | src/compiler/nir/nir_loop_analyze.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/src/compiler/nir/nir_loop_analyze.c b/src/compiler/nir/nir_loop_analyze.c index 71cbe3c5a8d..a5f464a45d1 100644 --- a/src/compiler/nir/nir_loop_analyze.c +++ b/src/compiler/nir/nir_loop_analyze.c @@ -384,8 +384,8 @@ get_iteration(nir_op cond_op, nir_const_value *initial, nir_const_value *step, case nir_op_flt: case nir_op_feq: case nir_op_fne: { - int32_t initial_val = initial->f32[0]; - int32_t span = limit->f32[0] - initial_val; + float initial_val = initial->f32[0]; + float span = limit->f32[0] - initial_val; iter = span / step->f32[0]; break; } |