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pan/bi: Unit test message preloading optimization

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To make sure it is applied in the cases we expect it to be, to avoid code
generation regressions. Functional regressions are expected to be caught by
integration-testing, so that is not focused on here.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/9438>
This commit is contained in:
Alyssa Rosenzweig 2022-02-24 13:36:24 -05:00
parent eb1479bda2
commit cd2a4cc47c
2 changed files with 179 additions and 0 deletions
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1
src/panfrost/bifrost/meson.build
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@ -151,6 +151,7 @@ if with_tests
files(
'test/test-constant-fold.cpp',
'test/test-dual-texture.cpp',
'test/test-message-preload.cpp',
'test/test-optimizer.cpp',
'test/test-pack-formats.cpp',
'test/test-packing.cpp',

178
src/panfrost/bifrost/test/test-message-preload.cpp Normal file
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@ -0,0 +1,178 @@
/*
* Copyright (C) 2022 Collabora, Ltd.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "compiler.h"
#include "bi_test.h"
#include "bi_builder.h"
#include <gtest/gtest.h>
#define CASE(instr, expected) do { \
bi_builder *A = bit_builder(mem_ctx); \
bi_builder *B = bit_builder(mem_ctx); \
A->shader->info.bifrost = rzalloc(mem_ctx, struct bifrost_shader_info); \
B->shader->info.bifrost = rzalloc(mem_ctx, struct bifrost_shader_info); \
{ \
bi_builder *b = A; \
bi_index u = bi_temp(b->shader); \
UNUSED bi_index v = bi_temp(b->shader); \
UNUSED bi_index w = bi_temp(b->shader); \
instr; \
} \
{ \
bi_builder *b = B; \
bi_index u = bi_temp(b->shader); \
UNUSED bi_index v = bi_temp(b->shader); \
UNUSED bi_index w = bi_temp(b->shader); \
expected; \
} \
bi_opt_message_preload(A->shader); \
if (!bit_shader_equal(A->shader, B->shader)) { \
ADD_FAILURE(); \
fprintf(stderr, "Optimization produce unexpected result"); \
fprintf(stderr, " Actual:\n"); \
bi_print_shader(A->shader, stderr); \
fprintf(stderr, "Expected:\n"); \
bi_print_shader(B->shader, stderr); \
fprintf(stderr, "\n"); \
} \
} while(0)
#define NEGCASE(instr) CASE(instr, instr)
class MessagePreload : public testing::Test {
protected:
MessagePreload() {
mem_ctx = ralloc_context(NULL);
x = bi_register(16);
y = bi_register(32);
}
~MessagePreload() {
ralloc_free(mem_ctx);
}
void *mem_ctx;
bi_index reg, x, y;
static void preload_moves(bi_builder *b, bi_index dest, int count, int idx)
{
for (int i = 0; i < count; ++i)
bi_mov_i32_to(b, bi_word(dest, i), bi_register(idx*4 + i));
}
};
TEST_F(MessagePreload, PreloadLdVarSample)
{
CASE({
bi_ld_var_imm_to(b, u, bi_register(61), BI_REGISTER_FORMAT_F32,
BI_SAMPLE_SAMPLE, BI_UPDATE_STORE, BI_VECSIZE_V4, 0);
}, {
preload_moves(b, u, 4, 0);
});
}
TEST_F(MessagePreload, PreloadLdVarLdVar)
{
CASE({
bi_ld_var_imm_to(b, u, bi_register(61), BI_REGISTER_FORMAT_F32,
BI_SAMPLE_SAMPLE, BI_UPDATE_STORE, BI_VECSIZE_V4, 2);
bi_ld_var_imm_to(b, v, bi_register(61), BI_REGISTER_FORMAT_F32,
BI_SAMPLE_SAMPLE, BI_UPDATE_STORE, BI_VECSIZE_V4, 1);
}, {
preload_moves(b, u, 4, 0);
preload_moves(b, v, 4, 1);
});
}
TEST_F(MessagePreload, MaxTwoMessages)
{
CASE({
bi_ld_var_imm_to(b, u, bi_register(61), BI_REGISTER_FORMAT_F32,
BI_SAMPLE_SAMPLE, BI_UPDATE_STORE, BI_VECSIZE_V4, 2);
bi_ld_var_imm_to(b, v, bi_register(61), BI_REGISTER_FORMAT_F32,
BI_SAMPLE_SAMPLE, BI_UPDATE_STORE, BI_VECSIZE_V4, 1);
bi_ld_var_imm_to(b, w, bi_register(61), BI_REGISTER_FORMAT_F32,
BI_SAMPLE_SAMPLE, BI_UPDATE_STORE, BI_VECSIZE_V4, 0);
},
{
preload_moves(b, u, 4, 0);
preload_moves(b, v, 4, 1);
bi_ld_var_imm_to(b, w, bi_register(61), BI_REGISTER_FORMAT_F32,
BI_SAMPLE_SAMPLE, BI_UPDATE_STORE, BI_VECSIZE_V4, 0);
});
CASE({
bi_var_tex_f32_to(b, u, false, BI_SAMPLE_CENTER, BI_UPDATE_STORE, 0, 0);
bi_var_tex_f16_to(b, v, false, BI_SAMPLE_CENTER, BI_UPDATE_STORE, 1, 2);
bi_var_tex_f16_to(b, w, false, BI_SAMPLE_CENTER, BI_UPDATE_STORE, 3, 3);
}, {
preload_moves(b, u, 4, 0);
preload_moves(b, v, 2, 1);
bi_var_tex_f16_to(b, w, false, BI_SAMPLE_CENTER, BI_UPDATE_STORE, 3, 3);
});
}
TEST_F(MessagePreload, PreloadVartexF16)
{
CASE({
bi_var_tex_f16_to(b, u, false, BI_SAMPLE_CENTER, BI_UPDATE_STORE, 0, 0);
}, {
preload_moves(b, u, 2, 0);
});
}
TEST_F(MessagePreload, PreloadVartexF32)
{
CASE({
bi_var_tex_f32_to(b, u, false, BI_SAMPLE_CENTER, BI_UPDATE_STORE, 0, 0);
}, {
preload_moves(b, u, 4, 0);
});
}
TEST_F(MessagePreload, PreloadVartexF32VartexF16)
{
CASE({
bi_var_tex_f32_to(b, u, false, BI_SAMPLE_CENTER, BI_UPDATE_STORE, 0, 0);
bi_var_tex_f16_to(b, v, false, BI_SAMPLE_CENTER, BI_UPDATE_STORE, 1, 2);
}, {
preload_moves(b, u, 4, 0);
preload_moves(b, v, 2, 1);
});
}
TEST_F(MessagePreload, PreloadVartexLodModes)
{
CASE({
bi_var_tex_f32_to(b, u, true, BI_SAMPLE_CENTER, BI_UPDATE_STORE, 0, 0);
bi_var_tex_f32_to(b, v, false, BI_SAMPLE_CENTER, BI_UPDATE_STORE, 0, 0);
}, {
preload_moves(b, u, 4, 0);
preload_moves(b, v, 4, 1);
});
}