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i965/nir/vec4: Implement load_input intrinsic

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The source register is fetched from the nir_inputs map built during
nir_setup_inputs stage.

Reviewed-by: Jason Ekstrand <jason.ekstrand@intel.com>
This commit is contained in:
Eduardo Lima Mitev
2015-06-16 21:24:21 +02:00
committed by Jason Ekstrand
parent afe085a0ca
commit 167cb9663a
1 changed files with 20 additions and 2 deletions
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src/mesa/drivers/dri/i965/brw_vec4_nir.cpp
+20 -2
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@@ -446,13 +446,31 @@ vec4_visitor::nir_emit_load_const(nir_load_const_instr *instr)
void
vec4_visitor::nir_emit_intrinsic(nir_intrinsic_instr *instr)
{
dst_reg dest;
src_reg src;
bool has_indirect = false;
switch (instr->intrinsic) {
case nir_intrinsic_load_input_indirect:
has_indirect = true;
/* fallthrough */
case nir_intrinsic_load_input:
/* @TODO: Not yet implemented */
case nir_intrinsic_load_input: {
int offset = instr->const_index[0];
src = nir_inputs[offset];
if (has_indirect) {
dest.reladdr = new(mem_ctx) src_reg(get_nir_src(instr->src[0],
BRW_REGISTER_TYPE_D,
1));
}
dest = get_nir_dest(instr->dest, src.type);
dest.writemask = brw_writemask_for_size(instr->num_components);
emit(MOV(dest, src));
break;
}
case nir_intrinsic_store_output_indirect:
/* fallthrough */