From: Dave Airlie <airl...@redhat.com>
This just adds support for the nir intrinsics that tessellation uses.
Signed-off-by: Dave Airlie <airl...@redhat.com>
---
src/amd/common/ac_nir_to_llvm.c | 35 ++++++++++++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)
diff --git a/src/amd/common/ac_nir_to_llvm.c b/src/amd/common/ac_nir_to_llvm.c
index 3da1095..8f7273e 100644
--- a/src/amd/common/ac_nir_to_llvm.c
+++ b/src/amd/common/ac_nir_to_llvm.c
@@ -3253,6 +3253,26 @@ visit_end_primitive(struct nir_to_llvm_context *ctx,
ac_build_sendmsg(&ctx->ac, AC_SENDMSG_GS_OP_CUT | AC_SENDMSG_GS | (0 <<
8), ctx->gs_wave_id);
}
+static LLVMValueRef
+visit_load_tess_coord(struct nir_to_llvm_context *ctx,
+ nir_intrinsic_instr *instr)
+{
+ LLVMValueRef coord[4] = {
+ ctx->tes_u,
+ ctx->tes_v,
+ ctx->f32zero,
+ ctx->f32zero,
+ };
+
+ if (ctx->tes_primitive_mode == GL_TRIANGLES)
+ coord[2] = LLVMBuildFSub(ctx->builder, ctx->f32one,
+ LLVMBuildFAdd(ctx->builder, coord[0],
coord[1], ""), "");
+
+ LLVMValueRef result = ac_build_gather_values(&ctx->ac, coord,
instr->num_components);
+ return LLVMBuildBitCast(ctx->builder, result,
+ get_def_type(ctx, &instr->dest.ssa), "");
+}
+
static void visit_intrinsic(struct nir_to_llvm_context *ctx,
nir_intrinsic_instr *instr)
{
@@ -3282,11 +3302,18 @@ static void visit_intrinsic(struct nir_to_llvm_context
*ctx,
result = ctx->draw_index;
break;
case nir_intrinsic_load_invocation_id:
- result = ctx->gs_invocation_id;
+ if (ctx->stage == MESA_SHADER_TESS_CTRL)
+ result = unpack_param(ctx, ctx->tcs_rel_ids, 8, 5);
+ else
+ result = ctx->gs_invocation_id;
break;
case nir_intrinsic_load_primitive_id:
if (ctx->stage == MESA_SHADER_GEOMETRY)
result = ctx->gs_prim_id;
+ else if (ctx->stage == MESA_SHADER_TESS_CTRL)
+ result = ctx->tcs_patch_id;
+ else if (ctx->stage == MESA_SHADER_TESS_EVAL)
+ result = ctx->tes_patch_id;
else
fprintf(stderr, "Unknown primitive id intrinsic: %d",
ctx->stage);
break;
@@ -3408,6 +3435,12 @@ static void visit_intrinsic(struct nir_to_llvm_context
*ctx,
case nir_intrinsic_end_primitive:
visit_end_primitive(ctx, instr);
break;
+ case nir_intrinsic_load_tess_coord:
+ result = visit_load_tess_coord(ctx, instr);
+ break;
+ case nir_intrinsic_load_patch_vertices_in:
+ result = LLVMConstInt(ctx->i32,
ctx->options->key.tcs.input_vertices, false);
+ break;
default:
fprintf(stderr, "Unknown intrinsic: ");
nir_print_instr(&instr->instr, stderr);
--
2.9.3
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/mesa-dev
