diff options
| author | Connor Abbott <cwabbott0@gmail.com> | 2017-06-06 16:08:33 -0700 |
|---|---|---|
| committer | Connor Abbott <cwabbott0@gmail.com> | 2017-08-08 12:05:25 -0700 |
| commit | ace814970d6c1011ac2588f3ce204c4fac8e33f5 (patch) | |
| tree | ace1c2ec390c0f1ab04b640ef4141176905d7dc2 | |
| parent | 13c2d573efdf9924f901330d7cb457cc126d885d (diff) | |
nir/lower_system_values: handle SPIR-V shader_ballot system values
Lower them to the GL version.
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
| -rw-r--r-- | src/compiler/nir/nir_lower_system_values.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/src/compiler/nir/nir_lower_system_values.c b/src/compiler/nir/nir_lower_system_values.c index ba20d3083f..76045ad813 100644 --- a/src/compiler/nir/nir_lower_system_values.c +++ b/src/compiler/nir/nir_lower_system_values.c @@ -110,6 +110,44 @@ convert_block(nir_block *block, nir_builder *b) } break; + case SYSTEM_VALUE_SUBGROUP_EQ_MASK_32BIT: + case SYSTEM_VALUE_SUBGROUP_GE_MASK_32BIT: + case SYSTEM_VALUE_SUBGROUP_GT_MASK_32BIT: + case SYSTEM_VALUE_SUBGROUP_LE_MASK_32BIT: + case SYSTEM_VALUE_SUBGROUP_LT_MASK_32BIT: { + nir_intrinsic_op op; + switch (var->data.location) { + case SYSTEM_VALUE_SUBGROUP_EQ_MASK_32BIT: + op = nir_intrinsic_load_subgroup_eq_mask; + break; + case SYSTEM_VALUE_SUBGROUP_GE_MASK_32BIT: + op = nir_intrinsic_load_subgroup_ge_mask; + break; + case SYSTEM_VALUE_SUBGROUP_GT_MASK_32BIT: + op = nir_intrinsic_load_subgroup_gt_mask; + break; + case SYSTEM_VALUE_SUBGROUP_LE_MASK_32BIT: + op = nir_intrinsic_load_subgroup_le_mask; + break; + case SYSTEM_VALUE_SUBGROUP_LT_MASK_32BIT: + op = nir_intrinsic_load_subgroup_lt_mask; + break; + default: + unreachable("bad intrinsic"); + } + nir_intrinsic_instr *instr = nir_intrinsic_instr_create(b->shader, op); + instr->num_components = 1; + nir_ssa_dest_init(&instr->instr, &instr->dest, 1, 64, NULL); + nir_builder_instr_insert(b, &instr->instr); + + sysval = nir_unpack_64_2x32(b, &instr->dest.ssa); + nir_ssa_def *zero = nir_imm_int(b, 0); + sysval = nir_vec4(b, nir_channel(b, sysval, 0), + nir_channel(b, sysval, 1), + zero, zero); + break; + } + case SYSTEM_VALUE_INSTANCE_INDEX: sysval = nir_iadd(b, nir_load_instance_id(b), |