radeonsi: don't declare LDS in PS when ds_bpermute is used

I guess this is not needed because dead code elimination removes
the declaration.

Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
This commit is contained in:
Marek Olšák 2016-10-02 22:01:38 +02:00
parent b2a694f079
commit 71a5cf6f3b
3 changed files with 7 additions and 4 deletions

View File

@ -817,6 +817,9 @@ struct pipe_screen *radeonsi_screen_create(struct radeon_winsys *ws)
sscreen->b.info.pfp_fw_version >= 121 &&
sscreen->b.info.me_fw_version >= 87);
sscreen->has_ds_bpermute = HAVE_LLVM >= 0x0309 &&
sscreen->b.chip_class >= VI;
sscreen->b.has_cp_dma = true;
sscreen->b.has_streamout = true;
pipe_mutex_init(sscreen->shader_parts_mutex);

View File

@ -83,6 +83,7 @@ struct si_screen {
unsigned tess_offchip_block_dw_size;
bool has_distributed_tess;
bool has_draw_indirect_multi;
bool has_ds_bpermute;
/* Whether shaders are monolithic (1-part) or separate (3-part). */
bool use_monolithic_shaders;

View File

@ -5009,8 +5009,6 @@ static void si_llvm_emit_ddxy(
LLVMValueRef thread_id, tl, trbl, tl_tid, trbl_tid, val, args[2];
int idx;
unsigned mask;
bool has_ds_bpermute = HAVE_LLVM >= 0x0309 &&
ctx->screen->b.chip_class >= VI;
thread_id = get_thread_id(ctx);
@ -5031,7 +5029,7 @@ static void si_llvm_emit_ddxy(
val = LLVMBuildBitCast(gallivm->builder, emit_data->args[0], ctx->i32, "");
if (has_ds_bpermute) {
if (ctx->screen->has_ds_bpermute) {
args[0] = LLVMBuildMul(gallivm->builder, tl_tid,
lp_build_const_int32(gallivm, 4), "");
args[1] = val;
@ -5738,7 +5736,8 @@ static void create_function(struct si_shader_context *ctx)
for (; i < num_params; ++i)
shader->info.num_input_vgprs += llvm_get_type_size(params[i]) / 4;
if (bld_base->info &&
if (!ctx->screen->has_ds_bpermute &&
bld_base->info &&
(bld_base->info->opcode_count[TGSI_OPCODE_DDX] > 0 ||
bld_base->info->opcode_count[TGSI_OPCODE_DDY] > 0 ||
bld_base->info->opcode_count[TGSI_OPCODE_DDX_FINE] > 0 ||