diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/broadcom/compiler/vir.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/broadcom/compiler/vir.c b/src/broadcom/compiler/vir.c index 917ccfeaef1..802448b1e03 100644 --- a/src/broadcom/compiler/vir.c +++ b/src/broadcom/compiler/vir.c @@ -939,6 +939,22 @@ uint64_t *v3d_compile(const struct v3d_compiler *compiler, NIR_PASS_V(c->s, nir_lower_idiv); v3d_optimize_nir(c->s); + + /* Do late algebraic optimization to turn add(a, neg(b)) back into + * subs, then the mandatory cleanup after algebraic. Note that it may + * produce fnegs, and if so then we need to keep running to squash + * fneg(fneg(a)). + */ + bool more_late_algebraic = true; + while (more_late_algebraic) { + more_late_algebraic = false; + NIR_PASS(more_late_algebraic, c->s, nir_opt_algebraic_late); + NIR_PASS_V(c->s, nir_opt_constant_folding); + NIR_PASS_V(c->s, nir_copy_prop); + NIR_PASS_V(c->s, nir_opt_dce); + NIR_PASS_V(c->s, nir_opt_cse); + } + NIR_PASS_V(c->s, nir_lower_bool_to_int32); NIR_PASS_V(c->s, nir_convert_from_ssa, true); |