This is better than compression control because it naturally extends to
SIMD32.
v2:
- Push/pop instruction state around adjusted codegen (Ken)
Reviewed-by: Kenneth Graunke <kenn...@whitecape.org>
---
src/intel/compiler/brw_fs_generator.cpp | 9 +++++----
1 file changed, 5 insertions(+), 4 deletions(-)
diff --git a/src/intel/compiler/brw_fs_generator.cpp
b/src/intel/compiler/brw_fs_generator.cpp
index 0c050a7..20e356e 100644
--- a/src/intel/compiler/brw_fs_generator.cpp
+++ b/src/intel/compiler/brw_fs_generator.cpp
@@ -781,6 +781,7 @@ fs_generator::generate_linterp(fs_inst *inst,
struct brw_reg dwQ = suboffset(interp, 1);
struct brw_reg dwR = suboffset(interp, 3);
+ brw_push_insn_state(p);
brw_set_default_exec_size(p, BRW_EXECUTE_8);
if (inst->exec_size == 8) {
@@ -795,16 +796,14 @@ fs_generator::generate_linterp(fs_inst *inst,
*/
brw_inst_set_saturate(p->devinfo, i[0], false);
} else {
- brw_set_default_compression_control(p, BRW_COMPRESSION_NONE);
+ brw_set_default_group(p, inst->group);
i[0] = brw_MAD(p, acc, dwR, offset(delta_x, 0), dwP);
i[1] = brw_MAD(p, offset(dst, 0), acc, offset(delta_x, 1), dwQ);
- brw_set_default_compression_control(p, BRW_COMPRESSION_2NDHALF);
+ brw_set_default_group(p, inst->group + 8);
i[2] = brw_MAD(p, acc, dwR, offset(delta_y, 0), dwP);
i[3] = brw_MAD(p, offset(dst, 1), acc, offset(delta_y, 1), dwQ);
- brw_set_default_compression_control(p, BRW_COMPRESSION_COMPRESSED);
-
brw_inst_set_cond_modifier(p->devinfo, i[1], inst->conditional_mod);
brw_inst_set_cond_modifier(p->devinfo, i[3], inst->conditional_mod);
@@ -816,6 +815,8 @@ fs_generator::generate_linterp(fs_inst *inst,
brw_inst_set_saturate(p->devinfo, i[2], false);
}
+ brw_pop_insn_state(p);
+
return true;
} else if (devinfo->has_pln) {
/* From the Sandy Bridge PRM Vol. 4, Pt. 2, Section 8.3.53, "Plane":
--
2.5.0.400.gff86faf
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