From: Francisco Jerez <curroje...@riseup.net>
Current discard handling requires dedicating the second flag register to
discard. However, control-flow in SIMD32 requires both flag registers
so it's incompatible with the current discard handling. Just don't
support SIMD32+discard for now.
Reviewed-by: Jason Ekstrand <ja...@jlekstrand.net>
---
src/intel/compiler/brw_fs_nir.cpp | 2 ++
1 file changed, 2 insertions(+)
diff --git a/src/intel/compiler/brw_fs_nir.cpp
b/src/intel/compiler/brw_fs_nir.cpp
index 1168365..28f056e 100644
--- a/src/intel/compiler/brw_fs_nir.cpp
+++ b/src/intel/compiler/brw_fs_nir.cpp
@@ -3374,6 +3374,8 @@ fs_visitor::nir_emit_fs_intrinsic(const fs_builder &bld,
if (devinfo->gen >= 6) {
emit_discard_jump();
}
+
+ limit_dispatch_width(16, "Fragment discard not implemented in SIMD32
mode.");
break;
}
--
2.5.0.400.gff86faf
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