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authorKenneth Graunke <kenneth@whitecape.org>2016-08-17 15:03:00 -0700
committerKenneth Graunke <kenneth@whitecape.org>2016-08-18 01:27:27 -0700
commit3a9e6102b4baae3f50956e5f150c9e59138f4cc0 (patch)
treeaf9a57937081034d707c613bb302371747a5255f
parente8543feba790b68edfcacc9554967118029b88f8 (diff)
nir/search: Extend 'a@bool' to handle a couple of system values.
load_front_face and load_helper_invocation produce booleans. On Broadwell: total instructions in shared programs: 11638956 -> 11638011 (-0.01%) instructions in affected programs: 115093 -> 114148 (-0.82%) helped: 628 HURT: 14 Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
-rw-r--r--src/compiler/nir/nir_search.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_search.c b/src/compiler/nir/nir_search.c
index bfa00c24a41..f24a7b9d07f 100644
--- a/src/compiler/nir/nir_search.c
+++ b/src/compiler/nir/nir_search.c
@@ -78,6 +78,13 @@ src_is_type(nir_src src, nir_alu_type type)
}
return nir_alu_type_get_base_type(output_type) == type;
+ } else if (src.ssa->parent_instr->type == nir_instr_type_intrinsic) {
+ nir_intrinsic_instr *intr = nir_instr_as_intrinsic(src.ssa->parent_instr);
+
+ if (type == nir_type_bool) {
+ return intr->intrinsic == nir_intrinsic_load_front_face ||
+ intr->intrinsic == nir_intrinsic_load_helper_invocation;
+ }
}
/* don't know */