From: Samuel Iglesias Gonsalvez <sigles...@igalia.com>
Signed-off-by: Samuel Iglesias Gonsalvez <sigles...@igalia.com>
---
src/glsl/nir/glsl_to_nir.cpp | 10 ++++++++++
src/glsl/nir/nir_intrinsics.h | 9 +++++++++
2 files changed, 19 insertions(+)
diff --git a/src/glsl/nir/glsl_to_nir.cpp b/src/glsl/nir/glsl_to_nir.cpp
index f80481b..d2c474a 100644
--- a/src/glsl/nir/glsl_to_nir.cpp
+++ b/src/glsl/nir/glsl_to_nir.cpp
@@ -1623,6 +1623,16 @@ nir_visitor::visit(ir_expression *ir)
instr->src[2].swizzle[i] = 0;
}
break;
+ case ir_triop_ssbo_unsized_array_length: {
+ nir_intrinsic_instr *load = nir_intrinsic_instr_create(this->shader,
+ nir_intrinsic_ssbo_unsized_array_length);
+ load->num_components = ir->type->vector_elements;
+ load->src[0] = evaluate_rvalue(ir->operands[0]);
+ load->src[1] = evaluate_rvalue(ir->operands[1]);
+ load->src[2] = evaluate_rvalue(ir->operands[2]);
+ add_instr(&load->instr, ir->type->vector_elements);
+ return;
+ }
case ir_quadop_bitfield_insert:
instr = emit(nir_op_bitfield_insert, dest_size, srcs);
for (unsigned i = 0; i < ir->operands[0]->type->vector_elements; i++) {
diff --git a/src/glsl/nir/nir_intrinsics.h b/src/glsl/nir/nir_intrinsics.h
index b516830..2351db3 100644
--- a/src/glsl/nir/nir_intrinsics.h
+++ b/src/glsl/nir/nir_intrinsics.h
@@ -62,6 +62,15 @@ INTRINSIC(interp_var_at_offset, 1, ARR(2), true, 0, 1, 0,
NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
/*
+ * Shared storage buffer's unsized array length calculation. It takes the
+ * SSBO index, unsized array offset inside the shader storage block interface
+ * and stride of unsized array.
+ */
+
+INTRINSIC(ssbo_unsized_array_length, 3, ARR(1), true, 1, 0, 0,
+ NIR_INTRINSIC_CAN_ELIMINATE | NIR_INTRINSIC_CAN_REORDER)
+
+/*
* a barrier is an intrinsic with no inputs/outputs but which can't be moved
* around/optimized in general
*/
--
1.9.1
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