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amd/common: scan if gl_PrimitiveID is used before translating to LLVM

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It makes more sense to move all scan stuff in the same place.
Also, we don't really need to duplicate the uses_primid field
for each stages.

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Samuel Pitoiset
2017-12-20 20:56:56 +01:00
parent 3b2cb2f99a
commit a4d2782664
5 changed files with 7 additions and 10 deletions
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4
src/amd/common/ac_nir_to_llvm.c
View File

@@ -4209,14 +4209,10 @@ static void visit_intrinsic(struct ac_nir_context *ctx,
break;
case nir_intrinsic_load_primitive_id:
if (ctx->stage == MESA_SHADER_GEOMETRY) {
if (ctx->nctx)
ctx->nctx->shader_info->gs.uses_prim_id = true;
result = ctx->abi->gs_prim_id;
} else if (ctx->stage == MESA_SHADER_TESS_CTRL) {
ctx->nctx->shader_info->tcs.uses_prim_id = true;
result = ctx->nctx->tcs_patch_id;
} else if (ctx->stage == MESA_SHADER_TESS_EVAL) {
ctx->nctx->shader_info->tcs.uses_prim_id = true;
result = ctx->nctx->tes_patch_id;
} else
fprintf(stderr, "Unknown primitive id intrinsic: %d", ctx->stage);

3
src/amd/common/ac_nir_to_llvm.h
View File

@@ -191,10 +191,8 @@ struct ac_shader_variant_info {
unsigned invocations;
unsigned gsvs_vertex_size;
unsigned max_gsvs_emit_size;
bool uses_prim_id;
} gs;
struct {
bool uses_prim_id;
unsigned tcs_vertices_out;
/* Which outputs are actually written */
uint64_t outputs_written;
@@ -210,7 +208,6 @@ struct ac_shader_variant_info {
enum gl_tess_spacing spacing;
bool ccw;
bool point_mode;
bool uses_prim_id;
} tes;
};
};

3
src/amd/common/ac_shader_info.c
View File

@@ -73,6 +73,9 @@ gather_intrinsic_info(nir_intrinsic_instr *instr, struct ac_shader_info *info)
case nir_intrinsic_load_invocation_id:
info->uses_invocation_id = true;
break;
case nir_intrinsic_load_primitive_id:
info->uses_prim_id = true;
break;
case nir_intrinsic_vulkan_resource_index:
info->desc_set_used_mask |= (1 << nir_intrinsic_desc_set(instr));
break;

1
src/amd/common/ac_shader_info.h
View File

@@ -32,6 +32,7 @@ struct ac_shader_info {
uint32_t desc_set_used_mask;
bool needs_multiview_view_index;
bool uses_invocation_id;
bool uses_prim_id;
struct {
bool has_vertex_buffers; /* needs vertex buffers and base/start */
bool needs_draw_id;

6
src/amd/vulkan/radv_pipeline.c
View File

@@ -2514,12 +2514,12 @@ radv_pipeline_init(struct radv_pipeline *pipeline,
if (pipeline->shaders[MESA_SHADER_FRAGMENT]->info.fs.prim_id_input)
pipeline->graphics.ia_switch_on_eoi = true;
if (radv_pipeline_has_gs(pipeline) &&
pipeline->shaders[MESA_SHADER_GEOMETRY]->info.gs.uses_prim_id)
pipeline->shaders[MESA_SHADER_GEOMETRY]->info.info.uses_prim_id)
pipeline->graphics.ia_switch_on_eoi = true;
if (radv_pipeline_has_tess(pipeline)) {
/* SWITCH_ON_EOI must be set if PrimID is used. */
if (pipeline->shaders[MESA_SHADER_TESS_CTRL]->info.tcs.uses_prim_id ||
radv_get_tess_eval_shader(pipeline)->info.tes.uses_prim_id)
if (pipeline->shaders[MESA_SHADER_TESS_CTRL]->info.info.uses_prim_id ||
radv_get_tess_eval_shader(pipeline)->info.info.uses_prim_id)
pipeline->graphics.ia_switch_on_eoi = true;
}