From 4b7dfd881296a542a0c08a12c27f643dabd7280c Mon Sep 17 00:00:00 2001 From: Timothy Arceri Date: Tue, 3 Jan 2017 12:03:54 +1100 Subject: 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 --- src/compiler/nir/nir_loop_analyze.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'src/compiler/nir/nir_loop_analyze.c') 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; } -- cgit v1.2.3