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nir/lower_system_values: Lower SUBGROUP_*_MASK based on type 

The SUBGROUP_*_MASK system values are uint64_t when coming in from GLSL
but uvec4 when coming in from SPIR-V.  Lowering based on type allows us
to nicely handle both.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Iago Toral Quiroga <itoral@igalia.com>
This commit is contained in:
Jason Ekstrand 2017-08-22 14:09:37 -07:00
parent 3ee91ee6ac
commit 9b35faba42
1 changed files with 3 additions and 2 deletions
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5
src/compiler/nir/nir_lower_system_values.c
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@ -125,8 +125,9 @@ convert_block(nir_block *block, nir_builder *b)
nir_intrinsic_op op =
nir_intrinsic_from_system_value(var->data.location);
nir_intrinsic_instr *load = nir_intrinsic_instr_create(b->shader, op);
nir_ssa_dest_init(&load->instr, &load->dest, 1, 64, NULL);
load->num_components = 1;
nir_ssa_dest_init_for_type(&load->instr, &load->dest,
var->type, NULL);
load->num_components = load->dest.ssa.num_components;
nir_builder_instr_insert(b, &load->instr);
sysval = &load->dest.ssa;
break;