539b50f5ae
When disabled, Turbofan is fully excluded from the compilation result. This is expected to reduce V8's contribution to chromium's binary size by roughly 20%. If Turbofan is disabled, Maglev and Webassembly must also be disabled (since both depend on TF). Note this new configuration (v8_enable_turbofan=false) is not yet used anywhere - we'll probably enable it for lite_mode bots in an upcoming CL for test coverage. Changes in detail: - Split out all src/compiler files from the main source sets. This was mostly done already, here we only clean up the few files that were left. - Define a new main TF entry point in turbofan.h. `NewCompilationJob` replaces `Pipeline::NewCompilationJob`. - When TF is enabled, turbofan-enabled.cc implements the above. - When disabled, turbofan-disabled stubs out the above with a runtime FATAL message. - The build process is modified s.t. mksnapshot always has TF available since it's needed to generate builtins. When disabled, TF is removed from other components, in particular it is no longer included in v8_compiler and transitively in v8_base. - When disabled, v8_for_testing no longer has v8_initializers available. These were only needed for test-serialize.cc, which is now excluded from this build mode. - When disabled, remove all related cctest/ und unittest/ files from the build. Bug: v8:13629 Change-Id: I63ab7632f03d0ee4a787cfc01574b5fdb08fd80b Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4128529 Reviewed-by: Tobias Tebbi <tebbi@chromium.org> Auto-Submit: Jakob Linke <jgruber@chromium.org> Reviewed-by: Michael Achenbach <machenbach@chromium.org> Reviewed-by: Victor Gomes <victorgomes@chromium.org> Commit-Queue: Jakob Linke <jgruber@chromium.org> Cr-Commit-Position: refs/heads/main@{#85210}
177 lines
6.1 KiB
Python
177 lines
6.1 KiB
Python
# Copyright 2022 the V8 project authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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from testrunner.local import utils
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# Increase the timeout for these:
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SLOW_ARCHS = [
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"arm", "arm64", "mips64", "mips64el", "s390", "s390x", "riscv32", "riscv64",
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"loong64"
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]
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class BuildConfig(object):
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def __init__(self, build_config, options):
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self.options = options
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# In V8 land, GN's x86 is called ia32.
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if build_config['v8_target_cpu'] == 'x86':
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self.arch = 'ia32'
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else:
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self.arch = build_config['v8_target_cpu']
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self.asan = build_config['is_asan']
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self.cfi_vptr = build_config['is_cfi']
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self.code_comments = build_config['v8_code_comments']
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self.component_build = build_config['is_component_build']
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self.concurrent_marking = build_config['v8_enable_concurrent_marking']
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self.conservative_stack_scanning = build_config[
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'v8_enable_conservative_stack_scanning']
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self.control_flow_integrity = build_config['v8_control_flow_integrity']
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self.dcheck_always_on = build_config['dcheck_always_on']
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self.debug_code = build_config['v8_enable_debug_code']
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self.dict_property_const_tracking = build_config[
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'v8_dict_property_const_tracking']
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self.disassembler = build_config['v8_enable_disassembler']
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self.gcov_coverage = build_config['is_gcov_coverage']
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self.gdbjit = build_config['v8_enable_gdbjit']
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self.is_android = build_config['is_android']
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self.is_clang = build_config['is_clang']
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self.is_debug = build_config['is_debug']
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self.is_DEBUG_defined = build_config['is_DEBUG_defined']
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self.is_full_debug = build_config['is_full_debug']
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self.lite_mode = build_config['v8_enable_lite_mode']
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self.maglev = build_config['v8_enable_maglev']
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self.msan = build_config['is_msan']
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self.no_i18n = not build_config['v8_enable_i18n_support']
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self.pointer_compression = build_config['v8_enable_pointer_compression']
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self.pointer_compression_shared_cage = build_config[
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'v8_enable_pointer_compression_shared_cage']
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self.predictable = build_config['v8_enable_verify_predictable']
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self.sandbox = build_config['v8_enable_sandbox']
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self.shared_ro_heap = build_config['v8_enable_shared_ro_heap']
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self.simulator_run = (
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build_config['target_cpu'] != build_config['v8_target_cpu'])
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self.single_generation = build_config['v8_enable_single_generation']
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self.slow_dchecks = build_config['v8_enable_slow_dchecks']
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self.third_party_heap = build_config['v8_enable_third_party_heap']
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self.tsan = build_config['is_tsan']
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self.turbofan = build_config['v8_enable_turbofan']
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# TODO(machenbach): We only have ubsan not ubsan_vptr.
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self.ubsan_vptr = build_config['is_ubsan_vptr']
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self.verify_csa = build_config['v8_enable_verify_csa']
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self.verify_heap = build_config['v8_enable_verify_heap']
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self.webassembly = build_config['v8_enable_webassembly']
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self.write_barriers = not build_config['v8_disable_write_barriers']
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# Export only for MIPS target
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if self.arch in ['mips64', 'mips64el']:
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self._mips_arch_variant = build_config['mips_arch_variant']
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self.mips_use_msa = build_config['mips_use_msa']
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@property
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def use_sanitizer(self):
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return (self.asan or self.cfi_vptr or self.msan or self.tsan or
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self.ubsan_vptr)
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@property
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def no_js_shared_memory(self):
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return (not self.shared_ro_heap) or (
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self.pointer_compression and
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not self.pointer_compression_shared_cage) or (not self.write_barriers)
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@property
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def is_mips_arch(self):
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return self.arch in ['mips64', 'mips64el']
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@property
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def simd_mips(self):
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return (self.is_mips_arch and self._mips_arch_variant == "r6" and
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self.mips_use_msa)
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@property
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def mips_arch_variant(self):
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return (self.is_mips_arch and self._mips_arch_variant)
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@property
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def no_simd_hardware(self):
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# TODO(liviurau): Add some tests and refactor the logic here.
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# We try to find all the reasons why we have no_simd.
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no_simd_hardware = any(i in self.options.extra_flags for i in [
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'--noenable-sse3', '--no-enable-sse3', '--noenable-ssse3',
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'--no-enable-ssse3', '--noenable-sse4-1', '--no-enable-sse4_1'
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])
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# Set no_simd_hardware on architectures without Simd enabled.
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if self.arch == 'mips64el':
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no_simd_hardware = not self.simd_mips
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if self.arch == 'loong64' or \
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self.arch == 'riscv32':
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no_simd_hardware = True
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# S390 hosts without VEF1 do not support Simd.
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if self.arch == 's390x' and \
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not self.simulator_run and \
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not utils.IsS390SimdSupported():
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no_simd_hardware = True
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# Ppc64 processors earlier than POWER9 do not support Simd instructions
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if self.arch == 'ppc64' and \
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not self.simulator_run and \
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utils.GuessPowerProcessorVersion() < 9:
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no_simd_hardware = True
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return no_simd_hardware
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def timeout_scalefactor(self, initial_factor):
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"""Increases timeout for slow build configurations."""
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factors = dict(
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lite_mode=2,
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predictable=4,
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tsan=2,
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use_sanitizer=1.5,
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is_full_debug=4,
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)
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result = initial_factor
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for k, v in factors.items():
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if getattr(self, k, False):
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result *= v
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if self.arch in SLOW_ARCHS:
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result *= 4.5
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return result
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def __str__(self):
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attrs = [
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'asan',
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'cfi_vptr',
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'code_comments',
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'control_flow_integrity',
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'dcheck_always_on',
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'debug_code',
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'dict_property_const_tracking',
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'disassembler',
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'gcov_coverage',
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'gdbjit',
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'is_debug',
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'is_DEBUG_defined',
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'lite_mode',
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'maglev',
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'msan',
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'no_i18n',
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'pointer_compression',
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'pointer_compression_shared_cage',
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'predictable',
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'sandbox',
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'slow_dchecks',
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'third_party_heap',
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'tsan',
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'turbofan',
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'ubsan_vptr',
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'verify_csa',
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'verify_heap',
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'webassembly',
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]
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detected_options = [attr for attr in attrs if getattr(self, attr, False)]
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return '\n'.join(detected_options)
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