Jan de Mooij
c774a27a88
The `moz_intgemm` pref is enabled by default in Nightly, so this patch doesn't mark it fuzzing-unsafe as it will be fuzzed anyway (the Python script checks for this). Differential Revision: https://phabricator.services.mozilla.com/D303775
175 lines
9.2 KiB
C
175 lines
9.2 KiB
C
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef js_WasmFeatures_h
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#define js_WasmFeatures_h
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// [SMDOC] WebAssembly feature gating
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//
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// Declarative listing of WebAssembly optional features. This macro is used to
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// generate most of the feature gating code in a centralized manner. See
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// 'Adding a feature' below for the exact steps needed to add a new feature.
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//
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// # Adding a feature
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//
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// 1. Add a configure switch for the feature in js/moz.configure
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// 2. Add a WASM_FEATURE_ENABLED #define below
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// 3. Add the feature to JS_FOR_WASM_FEATURES
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// a. capitalized name: Used for naming of feature functions, including
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// wasmFeatureEnabled shell function.
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// b. lower case name: Used for naming of feature flag variables, including
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// in wasm::FeatureArgs.
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// c. compile predicate: Set to WASM_FEATURE_ENABLED
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// d. compiler predicate: Expression of compilers that this feature depends
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// on.
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// e. flag predicate: Expression used to predicate enablement of feature
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// flag. Useful for disabling a feature when dependent feature is not
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// enabled or if we are fuzzing.
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// f. preference name: The stem of the browser preference. Will be expanded
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// to `javascript.options.wasm-FEATURE`.
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// 4. Add the preference to module/libpref/init/StaticPrefList.yaml
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// a. Set `set_spidermonkey_pref: startup`
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// b. Set value to 'true' for default features, @IS_NIGHTLY_BUILD@ for
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// tentative features, and 'false' for experimental features.
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// 5. Update the jit-test/tests/wasm/directiveless/features.js test to include
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// this feature.
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// 6. [fuzzing] Add the feature to gluesmith/src/lib.rs, if wasm-smith has
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// support for it.
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#ifdef ENABLE_WASM_RELAXED_SIMD
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# define WASM_RELAXED_SIMD_ENABLED 1
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#else
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# define WASM_RELAXED_SIMD_ENABLED 0
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#endif
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#ifdef ENABLE_WASM_MEMORY_CONTROL
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# define WASM_MEMORY_CONTROL_ENABLED 1
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#else
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# define WASM_MEMORY_CONTROL_ENABLED 0
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#endif
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#ifdef ENABLE_WASM_JSPI
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# define WASM_JSPI_ENABLED 1
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#else
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# define WASM_JSPI_ENABLED 0
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#endif
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#ifdef ENABLE_WASM_MOZ_INTGEMM
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# define WASM_MOZ_INTGEMM_ENABLED 1
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#else
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# define WASM_MOZ_INTGEMM_ENABLED 0
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#endif
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#ifdef ENABLE_WASM_BRANCH_HINTING
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# define WASM_BRANCH_HINTING_ENABLED 1
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#else
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# define WASM_BRANCH_HINTING_ENABLED 0
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#endif
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#ifdef ENABLE_WASM_CUSTOM_PAGE_SIZES
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# define WASM_CUSTOM_PAGE_SIZES_ENABLED 1
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#else
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# define WASM_CUSTOM_PAGE_SIZES_ENABLED 0
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#endif
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#ifdef ENABLE_WASM_COMPACT_IMPORTS
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# define WASM_COMPACT_IMPORTS_ENABLED 1
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#else
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# define WASM_COMPACT_IMPORTS_ENABLED 0
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#endif
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#ifdef ENABLE_WASM_COMPONENTS
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# define WASM_COMPONENTS_ENABLED 1
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#else
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# define WASM_COMPONENTS_ENABLED 0
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#endif
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// clang-format off
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#define JS_FOR_WASM_FEATURES(FEATURE) \
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FEATURE( \
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/* capitalized name */ RelaxedSimd, \
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/* lower case name */ relaxedSimd, \
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/* compile predicate */ WASM_RELAXED_SIMD_ENABLED, \
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/* compiler predicate */ AnyCompilerAvailable(cx), \
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/* flag predicate */ js::jit::JitSupportsWasmSimd(), \
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/* flag force enable */ false, \
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/* preference name */ relaxed_simd) \
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FEATURE( \
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/* capitalized name */ MemoryControl, \
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/* lower case name */ memoryControl, \
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/* compile predicate */ WASM_MEMORY_CONTROL_ENABLED, \
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/* compiler predicate */ AnyCompilerAvailable(cx), \
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/* flag predicate */ true, \
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/* flag force enable */ false, \
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/* preference name */ memory_control) \
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FEATURE( \
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/* capitalized name */ JSPromiseIntegration, \
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/* lower case name */ jsPromiseIntegration, \
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/* compile predicate */ WASM_JSPI_ENABLED, \
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/* compiler predicate */ IonPlatformSupport(), \
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/* flag predicate */ true, \
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/* flag force enable */ false, \
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/* preference name */ js_promise_integration) \
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FEATURE( \
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/* capitalized name */ StackSwitching, \
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/* lower case name */ stackSwitching, \
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/* compile predicate */ WASM_JSPI_ENABLED, \
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/* compiler predicate */ IonPlatformSupport(), \
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/* flag predicate */ true, \
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/* flag force enable */ false, \
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/* preference name */ stack_switching) \
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FEATURE( \
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/* capitalized name */ MozIntGemm, \
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/* lower case name */ mozIntGemm, \
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/* compile predicate */ WASM_MOZ_INTGEMM_ENABLED, \
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/* compiler predicate */ AnyCompilerAvailable(cx), \
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/* flag predicate */ IsPrivilegedContext(cx), \
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/* flag force enable */ false, \
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/* preference name */ moz_intgemm) \
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FEATURE( \
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/* capitalized name */ TestSerialization, \
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/* lower case name */ testSerialization, \
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/* compile predicate */ 1, \
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/* compiler predicate */ IonAvailable(cx), \
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/* flag predicate */ true, \
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/* flag force enable */ false, \
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/* preference name */ test_serialization) \
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FEATURE( \
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/* capitalized name */ BranchHinting, \
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/* lower case name */ branchHinting, \
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/* compile predicate */ WASM_BRANCH_HINTING_ENABLED, \
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/* compiler predicate */ true, \
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/* flag predicate */ true, \
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/* flag force enable */ false, \
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/* preference name */ branch_hinting) \
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FEATURE( \
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/* capitalized name */ CustomPageSizes, \
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/* lower case name */ customPageSizes, \
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/* compile predicate */ WASM_CUSTOM_PAGE_SIZES_ENABLED, \
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/* compiler predicate */ BaselineAvailable(cx), \
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/* flag predicate */ !IsFuzzingIon(cx), \
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/* flag force enable */ false, \
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/* preference name */ custom_page_sizes) \
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FEATURE( \
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/* capitalized name */ CompactImports, \
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/* lower case name */ compactImports, \
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/* compile predicate */ WASM_COMPACT_IMPORTS_ENABLED, \
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/* compiler predicate */ AnyCompilerAvailable(cx), \
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/* flag predicate */ true, \
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/* flag force enable */ false, \
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/* preference name */ compact_imports) \
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FEATURE( \
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/* capitalized name */ WideArithmetic, \
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/* lower case name */ wideArithmetic, \
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/* compile predicate */ 1, \
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/* compiler predicate */ AnyCompilerAvailable(cx), \
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/* flag predicate */ true, \
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/* flag force enable */ false, \
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/* preference name */ wide_arithmetic) \
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FEATURE( \
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/* capitalized name */ Components, \
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/* lower case name */ components, \
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/* compile predicate */ WASM_COMPONENTS_ENABLED, \
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/* compiler predicate */ AnyCompilerAvailable(cx), \
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/* flag predicate */ true, \
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/* flag force enable */ false, \
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/* preference name */ components)
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// clang-format on
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#endif // js_WasmFeatures_h
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