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[WebAssembly] Enable multivalue and reference-types in generic CPU config #80923

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merged 10 commits into from
Apr 29, 2024
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[WebAssembly] Enable multivalue and reference-types in generic CPU config #80923

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d6fd487
[WebAssembly] Add more features to generic CPU config
aheejin Feb 6, 2024
e501363
Merge branch 'main' into enable_features
aheejin Feb 7, 2024
01ac8bd
Mention that ABI is not turned on
aheejin Feb 23, 2024
7119137
Merge branch 'main' into enable_features
aheejin Feb 23, 2024
17e81e3
Merge branch 'main' into enable_features
aheejin Feb 23, 2024
26caed5
Merge branch 'main' into enable_features
aheejin Apr 23, 2024
de6aa6a
Enable only multivalue and reference types
aheejin Apr 23, 2024
91df749
Enable multivalue and reference-types in bleeding-edge
aheejin Apr 23, 2024
f4aee60
Update clang/docs/ReleaseNotes.rst
aheejin Apr 24, 2024
af79d4e
Merge branch 'main' into enable_features
aheejin Apr 24, 2024
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5 changes: 5 additions & 0 deletions clang/docs/ReleaseNotes.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -669,6 +669,11 @@ AIX Support
WebAssembly Support
^^^^^^^^^^^^^^^^^^^

The -mcpu=generic configuration now enables multivalue and reference-types.These
proposals are standardized and available in all major engines. Enabling
multivalue here only enables the language feature but does not turn on the
multivalue ABI (this enables non-ABI uses of multivalue, like exnref).

AVR Support
^^^^^^^^^^^

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20 changes: 13 additions & 7 deletions clang/lib/Basic/Targets/WebAssembly.cpp
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Expand Up @@ -147,19 +147,25 @@ void WebAssemblyTargetInfo::setFeatureEnabled(llvm::StringMap<bool> &Features,
bool WebAssemblyTargetInfo::initFeatureMap(
llvm::StringMap<bool> &Features, DiagnosticsEngine &Diags, StringRef CPU,
const std::vector<std::string> &FeaturesVec) const {
if (CPU == "bleeding-edge") {
auto addGenericFeatures = [&]() {
Features["multivalue"] = true;
Features["mutable-globals"] = true;
Features["reference-types"] = true;
Features["sign-ext"] = true;
};
auto addBleedingEdgeFeatures = [&]() {
addGenericFeatures();
Features["atomics"] = true;
Features["bulk-memory"] = true;
Features["multimemory"] = true;
Features["mutable-globals"] = true;
Features["nontrapping-fptoint"] = true;
Features["reference-types"] = true;
Features["sign-ext"] = true;
Features["tail-call"] = true;
setSIMDLevel(Features, SIMD128, true);
} else if (CPU == "generic") {
Features["mutable-globals"] = true;
Features["sign-ext"] = true;
};
if (CPU == "generic") {
addGenericFeatures();
} else if (CPU == "bleeding-edge") {
addBleedingEdgeFeatures();
}

return TargetInfo::initFeatureMap(Features, Diags, CPU, FeaturesVec);
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6 changes: 3 additions & 3 deletions clang/test/Preprocessor/wasm-target-features.c
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Expand Up @@ -152,7 +152,9 @@
// RUN: -target wasm64-unknown-unknown -mcpu=generic \
// RUN: | FileCheck %s -check-prefix=GENERIC-INCLUDE
//
// GENERIC-INCLUDE-DAG: #define __wasm_multivalue__ 1{{$}}
// GENERIC-INCLUDE-DAG: #define __wasm_mutable_globals__ 1{{$}}
// GENERIC-INCLUDE-DAG: #define __wasm_reference_types__ 1{{$}}
// GENERIC-INCLUDE-DAG: #define __wasm_sign_ext__ 1{{$}}
//
// RUN: %clang -E -dM %s -o - 2>&1 \
Expand All @@ -167,9 +169,7 @@
// GENERIC-NOT: #define __wasm_exception_handling__ 1{{$}}
// GENERIC-NOT: #define __wasm_extended_const__ 1{{$}}
// GENERIC-NOT: #define __wasm_multimemory__ 1{{$}}
// GENERIC-NOT: #define __wasm_multivalue__ 1{{$}}
// GENERIC-NOT: #define __wasm_nontrapping_fptoint__ 1{{$}}
// GENERIC-NOT: #define __wasm_reference_types__ 1{{$}}
// GENERIC-NOT: #define __wasm_relaxed_simd__ 1{{$}}
// GENERIC-NOT: #define __wasm_simd128__ 1{{$}}
// GENERIC-NOT: #define __wasm_tail_call__ 1{{$}}
Expand All @@ -184,6 +184,7 @@
// BLEEDING-EDGE-INCLUDE-DAG: #define __wasm_atomics__ 1{{$}}
// BLEEDING-EDGE-INCLUDE-DAG: #define __wasm_bulk_memory__ 1{{$}}
// BLEEDING-EDGE-INCLUDE-DAG: #define __wasm_multimemory__ 1{{$}}
// BLEEDING-EDGE-INCLUDE-DAG: #define __wasm_multivalue__ 1{{$}}
// BLEEDING-EDGE-INCLUDE-DAG: #define __wasm_mutable_globals__ 1{{$}}
// BLEEDING-EDGE-INCLUDE-DAG: #define __wasm_nontrapping_fptoint__ 1{{$}}
// BLEEDING-EDGE-INCLUDE-DAG: #define __wasm_reference_types__ 1{{$}}
Expand All @@ -200,7 +201,6 @@
//
// BLEEDING-EDGE-NOT: #define __wasm_exception_handling__ 1{{$}}
// BLEEDING-EDGE-NOT: #define __wasm_extended_const__ 1{{$}}
// BLEEDING-EDGE-NOT: #define __wasm_multivalue__ 1{{$}}
// BLEEDING-EDGE-NOT: #define __wasm_relaxed_simd__ 1{{$}}

// RUN: %clang -E -dM %s -o - 2>&1 \
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