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radeonsi: Lower TGSI_OPCODE_STORE down to LLVM op

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Reviewed-by: Marek Olšák <marek.olsak@amd.com>
This commit is contained in:
Nicolai Hähnle 2016-02-09 11:51:31 -05:00
parent 1e82dedeca
commit bfcefcb3c7
1 changed files with 80 additions and 3 deletions
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83
src/gallium/drivers/radeonsi/si_shader.c
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@ -40,6 +40,7 @@
#include "util/u_memory.h"
#include "util/u_pstipple.h"
#include "tgsi/tgsi_parse.h"
#include "tgsi/tgsi_build.h"
#include "tgsi/tgsi_util.h"
#include "tgsi/tgsi_dump.h"
@ -2763,7 +2764,8 @@ image_fetch_rsrc(
static LLVMValueRef image_fetch_coords(
struct lp_build_tgsi_context *bld_base,
const struct tgsi_full_instruction *inst)
const struct tgsi_full_instruction *inst,
unsigned src)
{
struct gallivm_state *gallivm = bld_base->base.gallivm;
LLVMBuilderRef builder = gallivm->builder;
@ -2775,7 +2777,7 @@ static LLVMValueRef image_fetch_coords(
int chan;
for (chan = 0; chan < num_coords; ++chan) {
tmp = lp_build_emit_fetch(bld_base, inst, 1, chan);
tmp = lp_build_emit_fetch(bld_base, inst, src, chan);
tmp = LLVMBuildBitCast(builder, tmp, bld_base->uint_bld.elem_type, "");
coords[chan] = tmp;
}
@ -2852,7 +2854,7 @@ static void load_fetch_args(
emit_data->dst_type = LLVMVectorType(bld_base->base.elem_type, 4);
image_fetch_rsrc(bld_base, &inst->Src[0], &rsrc);
coords = image_fetch_coords(bld_base, inst);
coords = image_fetch_coords(bld_base, inst, 1);
if (target == TGSI_TEXTURE_BUFFER) {
buffer_append_args(ctx, emit_data, rsrc, coords);
@ -2898,6 +2900,79 @@ static void load_emit(
}
}
static void store_fetch_args(
struct lp_build_tgsi_context * bld_base,
struct lp_build_emit_data * emit_data)
{
struct si_shader_context *ctx = si_shader_context(bld_base);
struct gallivm_state *gallivm = bld_base->base.gallivm;
const struct tgsi_full_instruction * inst = emit_data->inst;
struct tgsi_full_src_register image;
unsigned target = inst->Memory.Texture;
LLVMValueRef chans[4];
LLVMValueRef data;
LLVMValueRef coords;
LLVMValueRef rsrc;
unsigned chan;
emit_data->dst_type = LLVMVoidTypeInContext(gallivm->context);
image = tgsi_full_src_register_from_dst(&inst->Dst[0]);
image_fetch_rsrc(bld_base, &image, &rsrc);
coords = image_fetch_coords(bld_base, inst, 0);
for (chan = 0; chan < 4; ++chan) {
chans[chan] = lp_build_emit_fetch(bld_base, inst, 1, chan);
}
data = lp_build_gather_values(gallivm, chans, 4);
if (target == TGSI_TEXTURE_BUFFER) {
emit_data->args[0] = data;
emit_data->arg_count = 1;
buffer_append_args(ctx, emit_data, rsrc, coords);
} else {
emit_data->args[0] = data;
emit_data->args[1] = coords;
emit_data->args[2] = rsrc;
emit_data->args[3] = lp_build_const_int32(gallivm, 15); /* dmask */
emit_data->arg_count = 4;
image_append_args(ctx, emit_data, target);
}
}
static void store_emit(
const struct lp_build_tgsi_action *action,
struct lp_build_tgsi_context *bld_base,
struct lp_build_emit_data *emit_data)
{
struct gallivm_state *gallivm = bld_base->base.gallivm;
LLVMBuilderRef builder = gallivm->builder;
const struct tgsi_full_instruction * inst = emit_data->inst;
unsigned target = inst->Memory.Texture;
char intrinsic_name[32];
char coords_type[8];
if (target == TGSI_TEXTURE_BUFFER) {
emit_data->output[emit_data->chan] = lp_build_intrinsic(
builder, "llvm.amdgcn.buffer.store.format.v4f32",
emit_data->dst_type, emit_data->args, emit_data->arg_count,
LLVMNoUnwindAttribute);
} else {
build_int_type_name(LLVMTypeOf(emit_data->args[1]),
coords_type, sizeof(coords_type));
snprintf(intrinsic_name, sizeof(intrinsic_name),
"llvm.amdgcn.image.store.%s", coords_type);
emit_data->output[emit_data->chan] =
lp_build_intrinsic(
builder, intrinsic_name, emit_data->dst_type,
emit_data->args, emit_data->arg_count,
LLVMNoUnwindAttribute);
}
}
static void resq_fetch_args(
struct lp_build_tgsi_context * bld_base,
struct lp_build_emit_data * emit_data)
@ -5130,6 +5205,8 @@ static void si_init_shader_ctx(struct si_shader_context *ctx,
bld_base->op_actions[TGSI_OPCODE_LOAD].fetch_args = load_fetch_args;
bld_base->op_actions[TGSI_OPCODE_LOAD].emit = load_emit;
bld_base->op_actions[TGSI_OPCODE_STORE].fetch_args = store_fetch_args;
bld_base->op_actions[TGSI_OPCODE_STORE].emit = store_emit;
bld_base->op_actions[TGSI_OPCODE_RESQ].fetch_args = resq_fetch_args;
bld_base->op_actions[TGSI_OPCODE_RESQ].emit = resq_emit;