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nir: add NIR_DEBUG envvar

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Move all the NIR related debug environmental variables in a single
NIR_DEBUG one.

Use NIR_DEBUG=help to print all the available options.

v2:
 - Use a macro to simplify (Marcin, Jason)
 - Remove wrong changes (Marcin)

v3 (Marcin):
 - Remove rendundant NIR mentioning in option descriptions.
 - Unwrap option descriptions.
 - Ensure the constant is unsigned.
 - Use extern array to remove switch.

v4:
 - Add missing kernel shader (Jason).
 - Add unlikely() (Marcin).

Signed-off-by: Juan A. Suarez Romero <jasuarez@igalia.com>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Reviewed-by: Marcin Ślusarz <marcin.slusarz@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13840>
This commit is contained in:
Juan A. Suarez Romero 2021-11-17 16:10:52 +01:00 committed by Marge Bot
parent cc7db1fc53
commit f77ccdfb4a
11 changed files with 154 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
.gitlab-ci/common/generate-env.sh
View File

@ -68,7 +68,7 @@ for var in \
MESA_GL_VERSION_OVERRIDE \
MESA_VK_IGNORE_CONFORMANCE_WARNING \
MINIO_HOST \
NIR_VALIDATE \
NIR_DEBUG \
PAN_I_WANT_A_BROKEN_VULKAN_DRIVER \
PAN_MESA_DEBUG \
PIGLIT_FRACTION \

2
.gitlab-ci/crosvm-runner.sh
View File

@ -33,7 +33,7 @@ trap "exit \$exit_code" INT TERM
trap "exit_code=\$?; kill $ERR_TAIL_PID $OUT_TAIL_PID" EXIT
# We aren't testing LLVMPipe here, so we don't need to validate NIR on the host
NIR_VALIDATE=0 LIBGL_ALWAYS_SOFTWARE="true" GALLIUM_DRIVER="$CROSVM_GALLIUM_DRIVER" stdbuf -oL crosvm run \
NIR_DEBUG="novalidate" LIBGL_ALWAYS_SOFTWARE="true" GALLIUM_DRIVER="$CROSVM_GALLIUM_DRIVER" stdbuf -oL crosvm run \
--gpu "$CROSVM_GPU_ARGS" \
-m 4096 \
-c 2 \

14
docs/envvars.rst
View File

@ -207,15 +207,11 @@ The following are only applicable for drivers that uses NIR, as they
modify the behavior for the common ``NIR_PASS`` and ``NIR_PASS_V`` macros,
that wrap calls to NIR lowering/optimizations.
:envvar:`NIR_PRINT`
If defined, the resulting NIR shader will be printed out at each
successful NIR lowering/optimization call.
:envvar:`NIR_TEST_CLONE`
If defined, cloning a NIR shader would be tested at each successful
NIR lowering/optimization call.
:envvar:`NIR_TEST_SERIALIZE`
If defined, serialize and deserialize a NIR shader would be tested at
each successful NIR lowering/optimization call.
:envvar:`NIR_DEBUG`
a comma-separated list of debug options to apply to NIR
shaders. Use `NIR_DEBUG=help` to print a list of available options.
:envvar:`NIR_SKIP`
a comma-separated list of optimization/lowering passes to skip.
Mesa Xlib driver environment variables
--------------------------------------

79
src/compiler/nir/nir.c
View File

@ -38,6 +38,81 @@
#include "main/menums.h" /* BITFIELD64_MASK */
#ifndef NDEBUG
uint32_t nir_debug = ~0;
bool nir_debug_print_shader[MESA_SHADER_KERNEL + 1] = { 0 };
static const struct debug_named_value nir_debug_control[] = {
{ "clone", NIR_DEBUG_CLONE,
"Test cloning a shader at each successful lowering/optimization call" },
{ "serialize", NIR_DEBUG_SERIALIZE,
"Test serialize and deserialize shader at each successful lowering/optimization call" },
{ "novalidate", NIR_DEBUG_NOVALIDATE,
"Disable shader validation at each successful lowering/optimization call" },
{ "validate_ssa_dominance", NIR_DEBUG_VALIDATE_SSA_DOMINANCE,
"Validate SSA dominance in shader at each successful lowering/optimization call" },
{ "tgsi", NIR_DEBUG_TGSI,
"Dump NIR/TGSI shaders when doing a NIR<->TGSI translation" },
{ "print", NIR_DEBUG_PRINT,
"Dump resulting shader after each successful lowering/optimization call" },
{ "print_vs", NIR_DEBUG_PRINT_VS,
"Dump resulting vertex shader after each successful lowering/optimization call" },
{ "print_tcs", NIR_DEBUG_PRINT_TCS,
"Dump resulting tessellation control shader after each successful lowering/optimization call" },
{ "print_tes", NIR_DEBUG_PRINT_TES,
"Dump resulting tessellation evaluation shader after each successful lowering/optimization call" },
{ "print_gs", NIR_DEBUG_PRINT_GS,
"Dump resulting geometry shader after each successful lowering/optimization call" },
{ "print_fs", NIR_DEBUG_PRINT_FS,
"Dump resulting fragment shader after each successful lowering/optimization call" },
{ "print_cs", NIR_DEBUG_PRINT_CS,
"Dump resulting compute shader after each successful lowering/optimization call" },
{ "print_ts", NIR_DEBUG_PRINT_TS,
"Dump resulting task shader after each successful lowering/optimization call" },
{ "print_ms", NIR_DEBUG_PRINT_MS,
"Dump resulting mesh shader after each successful lowering/optimization call" },
{ "print_rgs", NIR_DEBUG_PRINT_RGS,
"Dump resulting raygen shader after each successful lowering/optimization call" },
{ "print_ahs", NIR_DEBUG_PRINT_AHS,
"Dump resulting any-hit shader after each successful lowering/optimization call" },
{ "print_chs", NIR_DEBUG_PRINT_CHS,
"Dump resulting closest-hit shader after each successful lowering/optimization call" },
{ "print_mhs", NIR_DEBUG_PRINT_MHS,
"Dump resulting miss-hit shader after each successful lowering/optimization call" },
{ "print_is", NIR_DEBUG_PRINT_IS,
"Dump resulting intersection shader after each successful lowering/optimization call" },
{ "print_cbs", NIR_DEBUG_PRINT_CBS,
"Dump resulting callable shader after each successful lowering/optimization call" },
{ "print_ks", NIR_DEBUG_PRINT_KS,
"Dump resulting kernel shader after each successful lowering/optimization call" },
{ NULL }
};
DEBUG_GET_ONCE_FLAGS_OPTION(nir_debug, "NIR_DEBUG", nir_debug_control, 0)
static void
nir_process_debug_variable(void)
{
if (unlikely(nir_debug == ~0)) {
nir_debug = debug_get_option_nir_debug();
nir_debug_print_shader[MESA_SHADER_VERTEX] = NIR_DEBUG(PRINT_VS);
nir_debug_print_shader[MESA_SHADER_TESS_CTRL] = NIR_DEBUG(PRINT_TCS);
nir_debug_print_shader[MESA_SHADER_TESS_EVAL] = NIR_DEBUG(PRINT_TES);
nir_debug_print_shader[MESA_SHADER_GEOMETRY] = NIR_DEBUG(PRINT_GS);
nir_debug_print_shader[MESA_SHADER_FRAGMENT] = NIR_DEBUG(PRINT_FS);
nir_debug_print_shader[MESA_SHADER_COMPUTE] = NIR_DEBUG(PRINT_CS);
nir_debug_print_shader[MESA_SHADER_TASK] = NIR_DEBUG(PRINT_TS);
nir_debug_print_shader[MESA_SHADER_MESH] = NIR_DEBUG(PRINT_MS);
nir_debug_print_shader[MESA_SHADER_RAYGEN] = NIR_DEBUG(PRINT_RGS);
nir_debug_print_shader[MESA_SHADER_ANY_HIT] = NIR_DEBUG(PRINT_AHS);
nir_debug_print_shader[MESA_SHADER_CLOSEST_HIT] = NIR_DEBUG(PRINT_CHS);
nir_debug_print_shader[MESA_SHADER_MISS] = NIR_DEBUG(PRINT_MHS);
nir_debug_print_shader[MESA_SHADER_INTERSECTION] = NIR_DEBUG(PRINT_IS);
nir_debug_print_shader[MESA_SHADER_CALLABLE] = NIR_DEBUG(PRINT_CBS);
nir_debug_print_shader[MESA_SHADER_KERNEL] = NIR_DEBUG(PRINT_KS);
}
}
#endif
/** Return true if the component mask "mask" with bit size "old_bit_size" can
* be re-interpreted to be used with "new_bit_size".
@ -120,6 +195,10 @@ nir_shader_create(void *mem_ctx,
nir_shader *shader = rzalloc(mem_ctx, nir_shader);
ralloc_set_destructor(shader, nir_shader_destructor);
#ifndef NDEBUG
nir_process_debug_variable();
#endif
exec_list_make_empty(&shader->variables);
shader->options = options;

86
src/compiler/nir/nir.h
View File

@ -62,6 +62,52 @@
extern "C" {
#endif
extern uint32_t nir_debug;
extern bool nir_debug_print_shader[MESA_SHADER_KERNEL + 1];
#ifndef NDEBUG
#define NIR_DEBUG(flag) unlikely(nir_debug & (NIR_DEBUG_ ## flag))
#else
#define NIR_DEBUG(flag) false
#endif
#define NIR_DEBUG_CLONE (1u << 0)
#define NIR_DEBUG_SERIALIZE (1u << 1)
#define NIR_DEBUG_NOVALIDATE (1u << 2)
#define NIR_DEBUG_VALIDATE_SSA_DOMINANCE (1u << 3)
#define NIR_DEBUG_TGSI (1u << 4)
#define NIR_DEBUG_PRINT_VS (1u << 5)
#define NIR_DEBUG_PRINT_TCS (1u << 6)
#define NIR_DEBUG_PRINT_TES (1u << 7)
#define NIR_DEBUG_PRINT_GS (1u << 8)
#define NIR_DEBUG_PRINT_FS (1u << 9)
#define NIR_DEBUG_PRINT_CS (1u << 10)
#define NIR_DEBUG_PRINT_TS (1u << 11)
#define NIR_DEBUG_PRINT_MS (1u << 12)
#define NIR_DEBUG_PRINT_RGS (1u << 13)
#define NIR_DEBUG_PRINT_AHS (1u << 14)
#define NIR_DEBUG_PRINT_CHS (1u << 15)
#define NIR_DEBUG_PRINT_MHS (1u << 16)
#define NIR_DEBUG_PRINT_IS (1u << 17)
#define NIR_DEBUG_PRINT_CBS (1u << 18)
#define NIR_DEBUG_PRINT_KS (1u << 19)
#define NIR_DEBUG_PRINT (NIR_DEBUG_PRINT_VS | \
NIR_DEBUG_PRINT_TCS | \
NIR_DEBUG_PRINT_TES | \
NIR_DEBUG_PRINT_GS | \
NIR_DEBUG_PRINT_FS | \
NIR_DEBUG_PRINT_CS | \
NIR_DEBUG_PRINT_TS | \
NIR_DEBUG_PRINT_MS | \
NIR_DEBUG_PRINT_RGS | \
NIR_DEBUG_PRINT_AHS | \
NIR_DEBUG_PRINT_CHS | \
NIR_DEBUG_PRINT_MHS | \
NIR_DEBUG_PRINT_IS | \
NIR_DEBUG_PRINT_CBS | \
NIR_DEBUG_PRINT_KS)
#define NIR_FALSE 0u
#define NIR_TRUE (~0u)
#define NIR_MAX_VEC_COMPONENTS 16
@ -4118,37 +4164,15 @@ should_skip_nir(const char *name)
return comma_separated_list_contains(list, name);
}
static inline bool
should_clone_nir(void)
{
static int should_clone = -1;
if (should_clone < 0)
should_clone = env_var_as_boolean("NIR_TEST_CLONE", false);
return should_clone;
}
static inline bool
should_serialize_deserialize_nir(void)
{
static int test_serialize = -1;
if (test_serialize < 0)
test_serialize = env_var_as_boolean("NIR_TEST_SERIALIZE", false);
return test_serialize;
}
static inline bool
should_print_nir(nir_shader *shader)
{
static int should_print = -1;
if (should_print < 0)
should_print = env_var_as_unsigned("NIR_PRINT", 0);
if (shader->info.internal ||
shader->info.stage < 0 ||
shader->info.stage > MESA_SHADER_KERNEL)
return false;
if (should_print == 1)
return !shader->info.internal;
return should_print;
return unlikely(nir_debug_print_shader[shader->info.stage]);
}
#else
static inline void nir_validate_shader(nir_shader *shader, const char *when) { (void) shader; (void)when; }
@ -4156,9 +4180,7 @@ static inline void nir_validate_ssa_dominance(nir_shader *shader, const char *wh
static inline void nir_metadata_set_validation_flag(nir_shader *shader) { (void) shader; }
static inline void nir_metadata_check_validation_flag(nir_shader *shader) { (void) shader; }
static inline bool should_skip_nir(UNUSED const char *pass_name) { return false; }
static inline bool should_clone_nir(void) { return false; }
static inline bool should_serialize_deserialize_nir(void) { return false; }
static inline bool should_print_nir(nir_shader *shader) { return false; }
static inline bool should_print_nir(UNUSED nir_shader *shader) { return false; }
#endif /* NDEBUG */
#define _PASS(pass, nir, do_pass) do { \
@ -4167,11 +4189,11 @@ static inline bool should_print_nir(nir_shader *shader) { return false; }
break; \
} \
do_pass \
if (should_clone_nir()) { \
if (NIR_DEBUG(CLONE)) { \
nir_shader *clone = nir_shader_clone(ralloc_parent(nir), nir); \
nir_shader_replace(nir, clone); \
} \
if (should_serialize_deserialize_nir()) { \
if (NIR_DEBUG(SERIALIZE)) { \
nir_shader_serialize_deserialize(nir); \
} \
} while (0)

12
src/compiler/nir/nir_validate.c
View File

@ -1630,7 +1630,7 @@ validate_function_impl(nir_function_impl *impl, validate_state *state)
static int validate_dominance = -1;
if (validate_dominance < 0) {
validate_dominance =
env_var_as_boolean("NIR_VALIDATE_SSA_DOMINANCE", false);
NIR_DEBUG(VALIDATE_SSA_DOMINANCE);
}
if (validate_dominance)
validate_ssa_dominance(impl, state);
@ -1707,10 +1707,7 @@ dump_errors(validate_state *state, const char *when)
void
nir_validate_shader(nir_shader *shader, const char *when)
{
static int should_validate = -1;
if (should_validate < 0)
should_validate = env_var_as_boolean("NIR_VALIDATE", true);
if (!should_validate)
if (NIR_DEBUG(NOVALIDATE))
return;
validate_state state;
@ -1761,10 +1758,7 @@ nir_validate_shader(nir_shader *shader, const char *when)
void
nir_validate_ssa_dominance(nir_shader *shader, const char *when)
{
static int should_validate = -1;
if (should_validate < 0)
should_validate = env_var_as_boolean("NIR_VALIDATE", true);
if (!should_validate)
if (NIR_DEBUG(NOVALIDATE))
return;
validate_state state;

2
src/compiler/shader_info.h
View File

@ -123,7 +123,7 @@ typedef struct shader_info {
/* Descriptive name provided by the client; may be NULL */
const char *label;
/* Shader is internal, and should be ignored by things like NIR_PRINT */
/* Shader is internal, and should be ignored by things like NIR_DEBUG=print */
bool internal;
/* SHA1 of the original source, used by shader detection in drivers. */

5
src/gallium/auxiliary/nir/nir_to_tgsi.c
View File

@ -3061,7 +3061,6 @@ nir_to_tgsi(struct nir_shader *s,
{
struct ntt_compile *c;
const void *tgsi_tokens;
bool debug = env_var_as_boolean("NIR_TO_TGSI_DEBUG", false);
nir_variable_mode no_indirects_mask = ntt_no_indirects_mask(s, screen);
bool native_integers = screen->get_shader_param(screen,
pipe_shader_type_from_mesa(s->info.stage),
@ -3142,7 +3141,7 @@ nir_to_tgsi(struct nir_shader *s,
NIR_PASS_V(s, nir_lower_locals_to_regs);
NIR_PASS_V(s, nir_opt_dce);
if (debug) {
if (NIR_DEBUG(TGSI)) {
fprintf(stderr, "NIR before translation to TGSI:\n");
nir_print_shader(s, stderr);
}
@ -3192,7 +3191,7 @@ nir_to_tgsi(struct nir_shader *s,
tgsi_tokens = ureg_get_tokens(c->ureg, NULL);
if (debug) {
if (NIR_DEBUG(TGSI)) {
fprintf(stderr, "TGSI after translation from NIR:\n");
tgsi_dump(tgsi_tokens, 0);
}

5
src/gallium/auxiliary/nir/tgsi_to_nir.c
View File

@ -2563,7 +2563,6 @@ tgsi_to_nir(const void *tgsi_tokens,
struct nir_shader *s = NULL;
uint8_t key[CACHE_KEY_SIZE];
unsigned processor;
bool debug = env_var_as_boolean("TGSI_TO_NIR_DEBUG", false);
if (allow_disk_cache)
cache = screen->get_disk_shader_cache(screen);
@ -2581,7 +2580,7 @@ tgsi_to_nir(const void *tgsi_tokens,
if (s)
return s;
if (debug) {
if (NIR_DEBUG(TGSI)) {
fprintf(stderr, "TGSI before translation to NIR:\n");
tgsi_dump(tgsi_tokens, 0);
}
@ -2593,7 +2592,7 @@ tgsi_to_nir(const void *tgsi_tokens,
ttn_finalize_nir(c, screen);
ralloc_free(c);
if (debug) {
if (NIR_DEBUG(TGSI)) {
mesa_logi("NIR after translation from TGSI:\n");
nir_log_shaderi(s);
}

3
src/gallium/drivers/llvmpipe/ci/deqp-llvmpipe.toml
View File

@ -35,8 +35,7 @@ deqp_args = [
[deqp.env]
# Stress test NIR clone/serialization for GLES3.1 (which should cover most of the featureset).
# Costs about 30% extra runtime.
NIR_TEST_CLONE = "true"
NIR_TEST_SERIALIZE = "true"
NIR_DEBUG="clone,serialize"
# Note that KHR-GL3* test sets include all tests from the previous
# version, so we only need to run one test list (unlike dEQP-GLES,

3
src/gallium/frontends/lavapipe/ci/gitlab-ci.yml
View File

@ -21,8 +21,7 @@ lavapipe-nir-stress:
- .lavapipe-test
variables:
DEQP_FRACTION: 100
NIR_TEST_CLONE: "true"
NIR_TEST_SERIALIZE: "true"
NIR_DEBUG: "clone,serialize"
lavapipe-vk-asan:
extends: