diff options
Diffstat (limited to 'src/intel')
| -rw-r--r-- | src/intel/compiler/brw_fs_nir.cpp | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/src/intel/compiler/brw_fs_nir.cpp b/src/intel/compiler/brw_fs_nir.cpp index 864bf267f7e..00ce6af23c7 100644 --- a/src/intel/compiler/brw_fs_nir.cpp +++ b/src/intel/compiler/brw_fs_nir.cpp @@ -3502,6 +3502,23 @@ fs_visitor::nir_emit_fs_intrinsic(const fs_builder &bld, bld.MOV(dest, fetch_render_target_array_index(bld)); break; + case nir_intrinsic_is_helper_invocation: { + /* Unlike the regular gl_HelperInvocation, that is defined at dispatch, + * the helperInvocationEXT() (aka SpvOpIsHelperInvocationEXT) takes into + * consideration demoted invocations. That information is stored in + * f0.1. + */ + dest.type = BRW_REGISTER_TYPE_UD; + + bld.MOV(dest, brw_imm_ud(0)); + + fs_inst *mov = bld.MOV(dest, brw_imm_ud(~0)); + mov->predicate = BRW_PREDICATE_NORMAL; + mov->predicate_inverse = true; + mov->flag_subreg = 1; + break; + } + case nir_intrinsic_load_helper_invocation: case nir_intrinsic_load_sample_mask_in: case nir_intrinsic_load_sample_id: { @@ -3549,6 +3566,7 @@ fs_visitor::nir_emit_fs_intrinsic(const fs_builder &bld, break; } + case nir_intrinsic_demote: case nir_intrinsic_discard: case nir_intrinsic_discard_if: { /* We track our discarded pixels in f0.1. By predicating on it, we can @@ -3608,10 +3626,14 @@ fs_visitor::nir_emit_fs_intrinsic(const fs_builder &bld, cmp->flag_subreg = 1; if (devinfo->gen >= 6) { + /* Due to the way we implement discard, the jump will only happen + * when the whole quad is discarded. So we can do this even for + * demote as it won't break its uniformity promises. + */ emit_discard_jump(); } - limit_dispatch_width(16, "Fragment discard not implemented in SIMD32 mode."); + limit_dispatch_width(16, "Fragment discard/demote not implemented in SIMD32 mode."); break; } |