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tvl-depot/absl/random/internal/BUILD.bazel
Abseil Team 078b89b3c0 Export of internal Abseil changes 
--
e54b9c7bbb0c58475676c268e2e19c69f4bce48a by Jorg Brown <jorg@google.com>:

Tweak ABSL_PREDICT_TRUE slightly, for better code on some platforms and/or
optimization levels.  "false || (x)" is more verbose than "!!(x)", but
ultimately more efficient.

For example, given this code:

void InitIfNecessary() {
  if (ABSL_PREDICT_TRUE(NeedsInit())) {
    SlowInitIfNecessary();
  }
}

Clang with default optimization level will produce:

Before this CL              After this CL
InitIfNecessary:            InitIfNecessary:
  push rbp                    push rbp
  mov  rbp, rsp               mov  rbp, rsp
  call NeedsInit              call NeedsInit
  xor  al, -1
  xor  al, -1
  test al, 1                  test al, 1
  jne  .LBB2_1                jne  .LBB3_1
  jmp  .LBB2_2                jmp  .LBB3_2
.LBB2_1:                    .LBB3_1:
  call SlowInitIfNecessary    call SlowInitIfNecessary
.LBB2_2:                    .LBB3_2:
  pop  rbp                    pop  rbp
  ret                         ret
PiperOrigin-RevId: 276401386

--
0a3c4dfd8342bf2b1b11a87f1c662c883f73cab7 by Abseil Team <absl-team@google.com>:

Fix comment nit: sem_open => sem_init.

The code calls sem_init, not sem_open, to initialize an unnamed semaphore.
(sem_open creates or opens a named semaphore.)

PiperOrigin-RevId: 276344072

--
b36a664e9459057509a90e83d3482e1d3a4c44c7 by Abseil Team <absl-team@google.com>:

Fix typo in flat_hash_map.h: exchaged -> exchanged

PiperOrigin-RevId: 276295792

--
7bbd8d18276eb110c8335743e35fceb662ddf3d6 by Samuel Benzaquen <sbenza@google.com>:

Add assertions to verify use of iterators.

PiperOrigin-RevId: 276283300

--
677398a8ffcb1f59182cffe57a4fe7ff147a0404 by Laramie Leavitt <lar@google.com>:

Migrate distribution_impl.h/cc to generate_real.h/cc.

Combine the methods RandU64To<Float,Double> into a single method:
GenerateRealFromBits().

Remove rejection sampling from absl::uniform_real_distribution.

PiperOrigin-RevId: 276158675

--
c60c9d11d24b0c546329d998e78e15a84b3153f5 by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 276126962

--
4c840cab6a8d86efa29b397cafaf7520eece68cc by Andy Soffer <asoffer@google.com>:

Update CMakeLists.txt to address https://github.com/abseil/abseil-cpp/issues/365.
This does not cover every platform, but it does at least address the
first-order issue of assuming gcc implies x86.

PiperOrigin-RevId: 276116253

--
98da366e6b5d51afe5d7ac6722126aca23d85ee6 by Abseil Team <absl-team@google.com>:

Internal change

PiperOrigin-RevId: 276097452
GitOrigin-RevId: e54b9c7bbb0c58475676c268e2e19c69f4bce48a
Change-Id: I02d84454bb71ab21ad3d39650acf6cc6e36f58d7
2019-10-24 10:29:13 -04:00

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#
# Copyright 2019 The Abseil Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test")
# Internal-only implementation classes for Abseil Random
load(
"//absl:copts/configure_copts.bzl",
"ABSL_DEFAULT_COPTS",
"ABSL_DEFAULT_LINKOPTS",
"ABSL_RANDOM_RANDEN_COPTS",
"ABSL_TEST_COPTS",
"absl_random_randen_copts_init",
)
package(default_visibility = [
"//absl/random:__pkg__",
])
licenses(["notice"]) # Apache 2.0
cc_library(
name = "traits",
hdrs = ["traits.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
visibility = [
"//absl/random:__pkg__",
],
deps = ["//absl/base:config"],
)
cc_library(
name = "distribution_caller",
hdrs = ["distribution_caller.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
visibility = [
"//absl/random:__pkg__",
],
)
cc_library(
name = "distributions",
hdrs = ["distributions.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distribution_caller",
":traits",
":uniform_helper",
"//absl/base",
"//absl/meta:type_traits",
"//absl/strings",
],
)
cc_library(
name = "fast_uniform_bits",
hdrs = [
"fast_uniform_bits.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
visibility = [
"//absl/random:__pkg__",
],
)
cc_library(
name = "seed_material",
srcs = [
"seed_material.cc",
],
hdrs = [
"seed_material.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":fast_uniform_bits",
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
"//absl/strings",
"//absl/types:optional",
"//absl/types:span",
],
)
cc_library(
name = "pool_urbg",
srcs = [
"pool_urbg.cc",
],
hdrs = [
"pool_urbg.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = select({
"//absl:windows": [],
"//conditions:default": ["-pthread"],
}) + ABSL_DEFAULT_LINKOPTS,
deps = [
":randen",
":seed_material",
":traits",
"//absl/base",
"//absl/base:config",
"//absl/base:core_headers",
"//absl/base:endian",
"//absl/base:raw_logging_internal",
"//absl/random:seed_gen_exception",
"//absl/types:span",
],
)
cc_library(
name = "explicit_seed_seq",
testonly = 1,
hdrs = [
"explicit_seed_seq.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
)
cc_library(
name = "sequence_urbg",
testonly = 1,
hdrs = [
"sequence_urbg.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
)
cc_library(
name = "salted_seed_seq",
hdrs = [
"salted_seed_seq.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":seed_material",
"//absl/container:inlined_vector",
"//absl/meta:type_traits",
"//absl/types:optional",
"//absl/types:span",
],
)
cc_library(
name = "iostream_state_saver",
hdrs = ["iostream_state_saver.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
"//absl/meta:type_traits",
"//absl/numeric:int128",
],
)
cc_library(
name = "generate_real",
hdrs = [
"generate_real.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":fastmath",
":traits",
"//absl/base:bits",
"//absl/meta:type_traits",
],
)
cc_library(
name = "fastmath",
hdrs = [
"fastmath.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = ["//absl/base:bits"],
)
cc_library(
name = "wide_multiply",
hdrs = ["wide_multiply.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":traits",
"//absl/base:bits",
"//absl/base:config",
"//absl/numeric:int128",
],
)
cc_library(
name = "nonsecure_base",
hdrs = ["nonsecure_base.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":pool_urbg",
":salted_seed_seq",
":seed_material",
"//absl/base:core_headers",
"//absl/meta:type_traits",
"//absl/strings",
"//absl/types:optional",
"//absl/types:span",
],
)
cc_library(
name = "pcg_engine",
hdrs = ["pcg_engine.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":fastmath",
":iostream_state_saver",
"//absl/base:config",
"//absl/meta:type_traits",
"//absl/numeric:int128",
],
)
cc_library(
name = "randen_engine",
hdrs = ["randen_engine.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":iostream_state_saver",
":randen",
"//absl/meta:type_traits",
],
)
cc_library(
name = "platform",
hdrs = [
"randen_traits.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
textual_hdrs = [
"randen-keys.inc",
"platform.h",
],
)
cc_library(
name = "randen",
srcs = [
"randen.cc",
],
hdrs = [
"randen.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":platform",
":randen_hwaes",
":randen_slow",
"//absl/base:raw_logging_internal",
],
)
cc_library(
name = "randen_slow",
srcs = ["randen_slow.cc"],
hdrs = ["randen_slow.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":platform",
],
)
absl_random_randen_copts_init()
cc_library(
name = "randen_hwaes",
srcs = [
"randen_detect.cc",
],
hdrs = [
"randen_detect.h",
"randen_hwaes.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":platform",
":randen_hwaes_impl",
],
)
# build with --save_temps to see assembly language output.
cc_library(
name = "randen_hwaes_impl",
srcs = [
"randen_hwaes.cc",
"randen_hwaes.h",
],
copts = ABSL_DEFAULT_COPTS + ABSL_RANDOM_RANDEN_COPTS + select({
"//absl:windows": [],
"//conditions:default": ["-Wno-pass-failed"],
}),
# copts in RANDEN_HWAES_COPTS can make this target unusable as a module
# leading to a Clang diagnostic. Furthermore, it only has a private header
# anyway and thus there wouldn't be any gain from using it as a module.
features = ["-header_modules"],
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":platform",
"//absl/base:core_headers",
],
)
cc_binary(
name = "gaussian_distribution_gentables",
srcs = [
"gaussian_distribution_gentables.cc",
],
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
"//absl/base:core_headers",
"//absl/random:distributions",
],
)
cc_library(
name = "distribution_test_util",
testonly = 1,
srcs = [
"chi_square.cc",
"distribution_test_util.cc",
],
hdrs = [
"chi_square.h",
"distribution_test_util.h",
],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
"//absl/base:core_headers",
"//absl/base:raw_logging_internal",
"//absl/strings",
"//absl/strings:str_format",
"//absl/types:span",
],
)
# Common tags for tests, etc.
ABSL_RANDOM_NONPORTABLE_TAGS = [
"no_test_android_arm",
"no_test_android_arm64",
"no_test_android_x86",
"no_test_darwin_x86_64",
"no_test_ios_x86_64",
"no_test_loonix",
"no_test_msvc_x64",
"no_test_wasm",
]
cc_test(
name = "traits_test",
size = "small",
srcs = ["traits_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":traits",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "generate_real_test",
size = "small",
srcs = [
"generate_real_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":generate_real",
"//absl/base:bits",
"//absl/flags:flag",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "distribution_test_util_test",
size = "small",
srcs = ["distribution_test_util_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distribution_test_util",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "fastmath_test",
size = "small",
srcs = ["fastmath_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":fastmath",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "explicit_seed_seq_test",
size = "small",
srcs = ["explicit_seed_seq_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":explicit_seed_seq",
"//absl/random:seed_sequences",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "salted_seed_seq_test",
size = "small",
srcs = ["salted_seed_seq_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":salted_seed_seq",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "chi_square_test",
size = "small",
srcs = [
"chi_square_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":distribution_test_util",
"//absl/base:core_headers",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "fast_uniform_bits_test",
size = "small",
srcs = [
"fast_uniform_bits_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":fast_uniform_bits",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "nonsecure_base_test",
size = "small",
srcs = [
"nonsecure_base_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":nonsecure_base",
"//absl/random",
"//absl/random:distributions",
"//absl/random:seed_sequences",
"//absl/strings",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "seed_material_test",
size = "small",
srcs = ["seed_material_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":seed_material",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "pool_urbg_test",
size = "small",
srcs = [
"pool_urbg_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":pool_urbg",
"//absl/meta:type_traits",
"//absl/types:span",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "pcg_engine_test",
size = "medium", # Trying to measure accuracy.
srcs = ["pcg_engine_test.cc"],
copts = ABSL_TEST_COPTS,
flaky = 1,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":explicit_seed_seq",
":pcg_engine",
"//absl/time",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "randen_engine_test",
size = "medium",
srcs = [
"randen_engine_test.cc",
],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":explicit_seed_seq",
":randen_engine",
"//absl/base:raw_logging_internal",
"//absl/strings",
"//absl/time",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "randen_test",
size = "small",
srcs = ["randen_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":randen",
"//absl/meta:type_traits",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "randen_slow_test",
size = "small",
srcs = ["randen_slow_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":randen_slow",
"@com_google_googletest//:gtest_main",
],
)
cc_test(
name = "randen_hwaes_test",
size = "small",
srcs = ["randen_hwaes_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
tags = ABSL_RANDOM_NONPORTABLE_TAGS,
deps = [
":platform",
":randen_hwaes",
":randen_hwaes_impl", # build_cleaner: keep
"//absl/base:raw_logging_internal",
"//absl/strings:str_format",
"@com_google_googletest//:gtest",
],
)
cc_test(
name = "wide_multiply_test",
size = "small",
srcs = ["wide_multiply_test.cc"],
copts = ABSL_TEST_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":wide_multiply",
"//absl/base:bits",
"//absl/numeric:int128",
"@com_google_googletest//:gtest_main",
],
)
cc_library(
name = "nanobenchmark",
srcs = ["nanobenchmark.cc"],
linkopts = ABSL_DEFAULT_LINKOPTS,
textual_hdrs = ["nanobenchmark.h"],
deps = [
":platform",
":randen_engine",
"//absl/base:raw_logging_internal",
],
)
cc_library(
name = "uniform_helper",
hdrs = ["uniform_helper.h"],
copts = ABSL_DEFAULT_COPTS,
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
"//absl/meta:type_traits",
],
)
cc_test(
name = "nanobenchmark_test",
size = "small",
srcs = ["nanobenchmark_test.cc"],
flaky = 1,
linkopts = ABSL_DEFAULT_LINKOPTS,
tags = [
"benchmark",
"no_test_ios_x86_64",
"no_test_loonix", # Crashing.
],
deps = [
":nanobenchmark",
"//absl/base:raw_logging_internal",
"//absl/strings",
],
)
cc_test(
name = "randen_benchmarks",
size = "medium",
srcs = ["randen_benchmarks.cc"],
copts = ABSL_TEST_COPTS + ABSL_RANDOM_RANDEN_COPTS,
flaky = 1,
linkopts = ABSL_DEFAULT_LINKOPTS,
tags = ABSL_RANDOM_NONPORTABLE_TAGS + ["benchmark"],
deps = [
":nanobenchmark",
":platform",
":randen",
":randen_engine",
":randen_hwaes",
":randen_hwaes_impl",
":randen_slow",
"//absl/base:raw_logging_internal",
"//absl/strings",
],
)
cc_test(
name = "iostream_state_saver_test",
size = "small",
srcs = ["iostream_state_saver_test.cc"],
linkopts = ABSL_DEFAULT_LINKOPTS,
deps = [
":iostream_state_saver",
"@com_google_googletest//:gtest_main",
],
)
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