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Merged
tlively merged 1 commit into from
Aug 10, 2026
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Rename relaxed-atomics to acquire-release-atomics #8982

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4 changes: 2 additions & 2 deletions scripts/fuzz_opt.py
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Expand Up @@ -921,7 +921,7 @@ def can_run(self, wasm):
if random.random() < 0.5:
return False
# wasm2c doesn't support most features
return all_disallowed(['exception-handling', 'simd', 'threads', 'bulk-memory', 'nontrapping-float-to-int', 'tail-call', 'sign-ext', 'reference-types', 'multivalue', 'gc', 'custom-descriptors', 'relaxed-atomics', 'wide-arithmetic'])
return all_disallowed(['exception-handling', 'simd', 'threads', 'bulk-memory', 'nontrapping-float-to-int', 'tail-call', 'sign-ext', 'reference-types', 'multivalue', 'gc', 'custom-descriptors', 'acquire-release-atomics', 'wide-arithmetic'])

@override
def run(self, wasm):
Expand Down Expand Up @@ -1252,7 +1252,7 @@ def can_run_on_wasm(self, wasm):
# implement wasm suspending using JS async/await.
if JSPI:
return False
return all_disallowed(['exception-handling', 'simd', 'threads', 'bulk-memory', 'nontrapping-float-to-int', 'tail-call', 'sign-ext', 'reference-types', 'multivalue', 'gc', 'multimemory', 'memory64', 'custom-descriptors', 'relaxed-atomics', 'wide-arithmetic'])
return all_disallowed(['exception-handling', 'simd', 'threads', 'bulk-memory', 'nontrapping-float-to-int', 'tail-call', 'sign-ext', 'reference-types', 'multivalue', 'gc', 'multimemory', 'memory64', 'custom-descriptors', 'acquire-release-atomics', 'wide-arithmetic'])


# Returns the wat for a wasm file. If it is already wat, it just returns that
Expand Down
4 changes: 2 additions & 2 deletions src/binaryen-c.cpp
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Expand Up @@ -505,8 +505,8 @@ BinaryenFeatures BinaryenFeatureBulkMemoryOpt(void) {
BinaryenFeatures BinaryenFeatureCallIndirectOverlong(void) {
return static_cast<BinaryenFeatures>(FeatureSet::CallIndirectOverlong);
}
BinaryenFeatures BinaryenFeatureRelaxedAtomics(void) {
return static_cast<BinaryenFeatures>(FeatureSet::RelaxedAtomics);
BinaryenFeatures BinaryenFeatureAcquireReleaseAtomics(void) {
return static_cast<BinaryenFeatures>(FeatureSet::AcquireReleaseAtomics);
}
BinaryenFeatures BinaryenFeatureMultibyte(void) {
return static_cast<BinaryenFeatures>(FeatureSet::Multibyte);
Expand Down
2 changes: 1 addition & 1 deletion src/binaryen-c.h
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Expand Up @@ -245,7 +245,7 @@ BINARYEN_API BinaryenFeatures BinaryenFeatureSharedEverything(void);
BINARYEN_API BinaryenFeatures BinaryenFeatureFP16(void);
BINARYEN_API BinaryenFeatures BinaryenFeatureBulkMemoryOpt(void);
BINARYEN_API BinaryenFeatures BinaryenFeatureCallIndirectOverlong(void);
BINARYEN_API BinaryenFeatures BinaryenFeatureRelaxedAtomics(void);
BINARYEN_API BinaryenFeatures BinaryenFeatureAcquireReleaseAtomics(void);
BINARYEN_API BinaryenFeatures BinaryenFeatureMultibyte(void);
BINARYEN_API BinaryenFeatures BinaryenFeatureCustomPageSizes(void);
BINARYEN_API BinaryenFeatures BinaryenFeatureWideArithmetic(void);
Expand Down
2 changes: 1 addition & 1 deletion src/js/binaryen.js-post.js
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Expand Up @@ -192,7 +192,7 @@ function initializeConstants() {
'FP16',
'BulkMemoryOpt',
'CallIndirectOverlong',
'RelaxedAtomics',
'AcquireReleaseAtomics',
'CustomPageSizes',
'WideArithmetic',
'CompactImports',
Expand Down
2 changes: 1 addition & 1 deletion src/passes/SafeHeap.cpp
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Expand Up @@ -230,7 +230,7 @@ struct SafeHeap : public Pass {
// load funcs
Load load;
std::vector<MemoryOrder> memoryOrdersToGenerate(
features.hasRelaxedAtomics()
features.hasAcquireReleaseAtomics()
? std::initializer_list<MemoryOrder>{MemoryOrder::Unordered,
MemoryOrder::AcqRel,
MemoryOrder::SeqCst}
Expand Down
2 changes: 1 addition & 1 deletion src/tools/fuzzing/fuzzing.cpp
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Expand Up @@ -54,7 +54,7 @@ std::vector<Type> getLoggableTypes(const FeatureSet& features) {
}

std::vector<MemoryOrder> getMemoryOrders(const FeatureSet& features) {
return features.hasRelaxedAtomics()
return features.hasAcquireReleaseAtomics()
? std::vector{MemoryOrder::AcqRel, MemoryOrder::SeqCst}
: std::vector{MemoryOrder::SeqCst};
}
Expand Down
2 changes: 1 addition & 1 deletion src/tools/tool-options.h
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Expand Up @@ -117,7 +117,7 @@ struct ToolOptions : public Options {
.addFeature(FeatureSet::CustomDescriptors,
"custom descriptors (RTTs) and exact references")
.addFeature(FeatureSet::Multibyte, "multibyte array loads and stores")
.addFeature(FeatureSet::RelaxedAtomics,
.addFeature(FeatureSet::AcquireReleaseAtomics,
"acquire/release atomic memory operations")
.addFeature(FeatureSet::CustomPageSizes, "custom page sizes")
.addFeature(FeatureSet::WideArithmetic, "wide arithmetic")
Expand Down
2 changes: 1 addition & 1 deletion src/wasm-binary.h
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Expand Up @@ -476,7 +476,7 @@ extern const char* FP16Feature;
extern const char* BulkMemoryOptFeature;
extern const char* CallIndirectOverlongFeature;
extern const char* CustomDescriptorsFeature;
extern const char* RelaxedAtomicsFeature;
extern const char* AcquireReleaseAtomicsFeature;
extern const char* MultibyteFeature;
extern const char* CustomPageSizesFeature;
extern const char* WideArithmeticFeature;
Expand Down
14 changes: 9 additions & 5 deletions src/wasm-features.h
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Expand Up @@ -55,7 +55,7 @@ struct FeatureSet {
// it does nothing. Binaryen always accepts LEB call-indirect encodings.
CallIndirectOverlong = 1 << 20,
CustomDescriptors = 1 << 21,
RelaxedAtomics = 1 << 22,
AcquireReleaseAtomics = 1 << 22,
CustomPageSizes = 1 << 23,
Multibyte = 1 << 24,
WideArithmetic = 1 << 25,
Expand Down Expand Up @@ -113,8 +113,8 @@ struct FeatureSet {
return "call-indirect-overlong";
case CustomDescriptors:
return "custom-descriptors";
case RelaxedAtomics:
return "relaxed-atomics";
case AcquireReleaseAtomics:
return "acquire-release-atomics";
case CustomPageSizes:
return "custom-page-sizes";
case Multibyte:
Expand Down Expand Up @@ -183,7 +183,9 @@ struct FeatureSet {
bool hasCustomDescriptors() const {
return (features & CustomDescriptors) != 0;
}
bool hasRelaxedAtomics() const { return (features & RelaxedAtomics) != 0; }
bool hasAcquireReleaseAtomics() const {
return (features & AcquireReleaseAtomics) != 0;
}
bool hasCustomPageSizes() const { return (features & CustomPageSizes) != 0; }
bool hasMultibyte() const { return (features & Multibyte) != 0; }
bool hasWideArithmetic() const { return (features & WideArithmetic) != 0; }
Expand Down Expand Up @@ -214,7 +216,9 @@ struct FeatureSet {
void setFP16(bool v = true) { set(FP16, v); }
void setBulkMemoryOpt(bool v = true) { set(BulkMemoryOpt, v); }
void setCustomDescriptors(bool v = true) { set(CustomDescriptors, v); }
void setRelaxedAtomics(bool v = true) { set(RelaxedAtomics, v); }
void setAcquireReleaseAtomics(bool v = true) {
set(AcquireReleaseAtomics, v);
}
void setMultibyte(bool v = true) { set(Multibyte, v); }
void setWideArithmetic(bool v = true) { set(WideArithmetic, v); }
void setCompactImports(bool v = true) { set(CompactImports, v); }
Expand Down
9 changes: 5 additions & 4 deletions src/wasm/wasm-binary.cpp
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Expand Up @@ -1594,8 +1594,8 @@ void WasmBinaryWriter::writeFeaturesSection() {
return BinaryConsts::CustomSections::CallIndirectOverlongFeature;
case FeatureSet::CustomDescriptors:
return BinaryConsts::CustomSections::CustomDescriptorsFeature;
case FeatureSet::RelaxedAtomics:
return BinaryConsts::CustomSections::RelaxedAtomicsFeature;
case FeatureSet::AcquireReleaseAtomics:
return BinaryConsts::CustomSections::AcquireReleaseAtomicsFeature;
case FeatureSet::CustomPageSizes:
return BinaryConsts::CustomSections::CustomPageSizesFeature;
case FeatureSet::WideArithmetic:
Expand Down Expand Up @@ -5618,8 +5618,9 @@ void WasmBinaryReader::readFeatures(size_t sectionPos, size_t payloadLen) {
feature = FeatureSet::FP16;
} else if (name == BinaryConsts::CustomSections::CustomDescriptorsFeature) {
feature = FeatureSet::CustomDescriptors;
} else if (name == BinaryConsts::CustomSections::RelaxedAtomicsFeature) {
feature = FeatureSet::RelaxedAtomics;
} else if (name ==
BinaryConsts::CustomSections::AcquireReleaseAtomicsFeature) {
feature = FeatureSet::AcquireReleaseAtomics;
} else if (name == BinaryConsts::CustomSections::CustomPageSizesFeature) {
feature = FeatureSet::CustomPageSizes;
} else if (name == BinaryConsts::CustomSections::WideArithmeticFeature) {
Expand Down
20 changes: 10 additions & 10 deletions src/wasm/wasm-validator.cpp
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Expand Up @@ -1220,10 +1220,10 @@ void FunctionValidator::visitLoad(Load* curr) {
}
switch (curr->order) {
case MemoryOrder::AcqRel: {
shouldBeTrue(getModule()->features.hasRelaxedAtomics(),
shouldBeTrue(getModule()->features.hasAcquireReleaseAtomics(),
curr,
"Acquire/release operations require relaxed atomics "
"[--enable-relaxed-atomics]");
"[--enable-acquire-release-atomics]");
break;
}
case MemoryOrder::Unordered:
Expand Down Expand Up @@ -1265,10 +1265,10 @@ void FunctionValidator::visitStore(Store* curr) {
}
switch (curr->order) {
case MemoryOrder::AcqRel: {
shouldBeTrue(getModule()->features.hasRelaxedAtomics(),
shouldBeTrue(getModule()->features.hasAcquireReleaseAtomics(),
curr,
"Acquire/release operations require relaxed atomics "
"[--enable-relaxed-atomics]");
"[--enable-acquire-release-atomics]");
break;
}
case MemoryOrder::Unordered:
Expand Down Expand Up @@ -1310,10 +1310,10 @@ void FunctionValidator::visitAtomicRMW(AtomicRMW* curr) {

switch (curr->order) {
case MemoryOrder::AcqRel: {
shouldBeTrue(getModule()->features.hasRelaxedAtomics(),
shouldBeTrue(getModule()->features.hasAcquireReleaseAtomics(),
curr,
"Acquire/release operations require relaxed atomics "
"[--enable-relaxed-atomics]");
"[--enable-acquire-release-atomics]");
break;
}
// Unordered RMW should be impossible unless there's a bug in the parser.
Expand Down Expand Up @@ -1351,10 +1351,10 @@ void FunctionValidator::visitAtomicCmpxchg(AtomicCmpxchg* curr) {

switch (curr->order) {
case MemoryOrder::AcqRel: {
shouldBeTrue(getModule()->features.hasRelaxedAtomics(),
shouldBeTrue(getModule()->features.hasAcquireReleaseAtomics(),
curr,
"Acquire/release operations require relaxed atomics "
"[--enable-relaxed-atomics]");
"[--enable-acquire-release-atomics]");
break;
}
// Unordered cmpxchg should be impossible unless there's a bug in the
Expand Down Expand Up @@ -1449,10 +1449,10 @@ void FunctionValidator::visitAtomicFence(AtomicFence* curr) {
"Atomic operations require threads [--enable-threads]");
switch (curr->order) {
case MemoryOrder::AcqRel: {
shouldBeTrue(getModule()->features.hasRelaxedAtomics(),
shouldBeTrue(getModule()->features.hasAcquireReleaseAtomics(),
curr,
"Acquire/release operations require relaxed atomics "
"[--enable-relaxed-atomics]");
"[--enable-acquire-release-atomics]");
break;
}
case MemoryOrder::SeqCst:
Expand Down
2 changes: 1 addition & 1 deletion src/wasm/wasm.cpp
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Expand Up @@ -76,7 +76,7 @@ const char* FP16Feature = "fp16";
const char* BulkMemoryOptFeature = "bulk-memory-opt";
const char* CallIndirectOverlongFeature = "call-indirect-overlong";
const char* CustomDescriptorsFeature = "custom-descriptors";
const char* RelaxedAtomicsFeature = "relaxed-atomics";
const char* AcquireReleaseAtomicsFeature = "acquire-release-atomics";
const char* MultibyteFeature = "multibyte";
const char* CustomPageSizesFeature = "custom-page-sizes";
const char* WideArithmeticFeature = "wide-arithmetic";
Expand Down
4 changes: 2 additions & 2 deletions test/binaryen.js/kitchen-sink.js
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Expand Up @@ -100,7 +100,7 @@ function test_features() {
console.log("Features.ExtendedConst: " + binaryen.Features.ExtendedConst);
console.log("Features.Strings: " + binaryen.Features.Strings);
console.log("Features.MultiMemory: " + binaryen.Features.MultiMemory);
console.log("Features.RelaxedAtomics: " + binaryen.Features.RelaxedAtomics);
console.log("Features.AcquireReleaseAtomics: " + binaryen.Features.AcquireReleaseAtomics);
console.log("Features.CustomPageSizes: " + binaryen.Features.CustomPageSizes);
console.log("Features.WideArithmetic: " + binaryen.Features.WideArithmetic);
console.log("Features.CompactImports: " + binaryen.Features.CompactImports);
Expand Down Expand Up @@ -1295,7 +1295,7 @@ function test_relaxed_atomics() {
fence,
], binaryen.auto);

module.addFunction("relaxed-atomics", binaryen.none, binaryen.none, [], body);
module.addFunction("acquire-release-atomics", binaryen.none, binaryen.none, [], body);

console.log(module.emitText());
module.dispose();
Expand Down
4 changes: 2 additions & 2 deletions test/binaryen.js/kitchen-sink.js.txt
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Expand Up @@ -33,7 +33,7 @@ Features.RelaxedSIMD: 4096
Features.ExtendedConst: 8192
Features.Strings: 16384
Features.MultiMemory: 32768
Features.RelaxedAtomics: 4194304
Features.AcquireReleaseAtomics: 4194304
Features.CustomPageSizes: 8388608
Features.WideArithmetic: 33554432
Features.CompactImports: 67108864
Expand Down Expand Up @@ -2887,7 +2887,7 @@ Fence memory order: 2
(type $0 (func))
(memory $0 1 1)
(export "memory" (memory $0))
(func $relaxed-atomics (type $0)
(func $acquire-release-atomics (type $0)
(block $body
(drop
(i32.atomic.load acqrel
Expand Down
6 changes: 3 additions & 3 deletions test/example/c-api-kitchen-sink.c
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Expand Up @@ -374,8 +374,8 @@ void test_features() {
printf("BinaryenFeatureRelaxedSIMD: %d\n", BinaryenFeatureRelaxedSIMD());
printf("BinaryenFeatureExtendedConst: %d\n", BinaryenFeatureExtendedConst());
printf("BinaryenFeatureStrings: %d\n", BinaryenFeatureStrings());
printf("BinaryenFeatureRelaxedAtomics: %d\n",
BinaryenFeatureRelaxedAtomics());
printf("BinaryenFeatureAcquireReleaseAtomics: %d\n",
BinaryenFeatureAcquireReleaseAtomics());
printf("BinaryenFeatureCustomPageSizes: %d\n",
BinaryenFeatureCustomPageSizes());
printf("BinaryenFeatureMultibyte: %d\n", BinaryenFeatureMultibyte());
Expand Down Expand Up @@ -2384,7 +2384,7 @@ void test_relaxed_atomics() {
BinaryenTypeAuto());

BinaryenFunctionRef tiny = BinaryenAddFunction(module,
"relaxed-atomics",
"acquire-release-atomics",
BinaryenTypeNone(),
BinaryenTypeNone(),
NULL,
Expand Down
4 changes: 2 additions & 2 deletions test/example/c-api-kitchen-sink.txt
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Expand Up @@ -47,7 +47,7 @@ BinaryenFeatureMemory64: 2048
BinaryenFeatureRelaxedSIMD: 4096
BinaryenFeatureExtendedConst: 8192
BinaryenFeatureStrings: 16384
BinaryenFeatureRelaxedAtomics: 4194304
BinaryenFeatureAcquireReleaseAtomics: 4194304
BinaryenFeatureCustomPageSizes: 8388608
BinaryenFeatureMultibyte: 16777216
BinaryenFeatureWideArithmetic: 33554432
Expand Down Expand Up @@ -3106,7 +3106,7 @@ Fence memory order: 2
(type $0 (func))
(memory $0 1 1)
(export "memory" (memory $0))
(func $relaxed-atomics (type $0)
(func $acquire-release-atomics (type $0)
(block $body
(drop
(i32.atomic.load acqrel
Expand Down
4 changes: 2 additions & 2 deletions test/lit/help/wasm-as.test
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Expand Up @@ -141,10 +141,10 @@
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-multibyte Disable multibyte array loads and stores
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-relaxed-atomics Enable acquire/release atomic memory
;; CHECK-NEXT: --enable-acquire-release-atomics Enable acquire/release atomic memory
;; CHECK-NEXT: operations
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-relaxed-atomics Disable acquire/release atomic memory
;; CHECK-NEXT: --disable-acquire-release-atomics Disable acquire/release atomic memory
;; CHECK-NEXT: operations
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-custom-page-sizes Enable custom page sizes
Expand Down
4 changes: 2 additions & 2 deletions test/lit/help/wasm-ctor-eval.test
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Expand Up @@ -148,10 +148,10 @@
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-multibyte Disable multibyte array loads and stores
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-relaxed-atomics Enable acquire/release atomic memory
;; CHECK-NEXT: --enable-acquire-release-atomics Enable acquire/release atomic memory
;; CHECK-NEXT: operations
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-relaxed-atomics Disable acquire/release atomic memory
;; CHECK-NEXT: --disable-acquire-release-atomics Disable acquire/release atomic memory
;; CHECK-NEXT: operations
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-custom-page-sizes Enable custom page sizes
Expand Down
4 changes: 2 additions & 2 deletions test/lit/help/wasm-dis.test
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Expand Up @@ -134,10 +134,10 @@
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-multibyte Disable multibyte array loads and stores
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-relaxed-atomics Enable acquire/release atomic memory
;; CHECK-NEXT: --enable-acquire-release-atomics Enable acquire/release atomic memory
;; CHECK-NEXT: operations
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-relaxed-atomics Disable acquire/release atomic memory
;; CHECK-NEXT: --disable-acquire-release-atomics Disable acquire/release atomic memory
;; CHECK-NEXT: operations
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-custom-page-sizes Enable custom page sizes
Expand Down
4 changes: 2 additions & 2 deletions test/lit/help/wasm-emscripten-finalize.test
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Expand Up @@ -176,10 +176,10 @@
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-multibyte Disable multibyte array loads and stores
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-relaxed-atomics Enable acquire/release atomic memory
;; CHECK-NEXT: --enable-acquire-release-atomics Enable acquire/release atomic memory
;; CHECK-NEXT: operations
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-relaxed-atomics Disable acquire/release atomic memory
;; CHECK-NEXT: --disable-acquire-release-atomics Disable acquire/release atomic memory
;; CHECK-NEXT: operations
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-custom-page-sizes Enable custom page sizes
Expand Down
4 changes: 2 additions & 2 deletions test/lit/help/wasm-merge.test
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Expand Up @@ -171,10 +171,10 @@
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-multibyte Disable multibyte array loads and stores
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-relaxed-atomics Enable acquire/release atomic memory
;; CHECK-NEXT: --enable-acquire-release-atomics Enable acquire/release atomic memory
;; CHECK-NEXT: operations
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-relaxed-atomics Disable acquire/release atomic memory
;; CHECK-NEXT: --disable-acquire-release-atomics Disable acquire/release atomic memory
;; CHECK-NEXT: operations
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-custom-page-sizes Enable custom page sizes
Expand Down
4 changes: 2 additions & 2 deletions test/lit/help/wasm-metadce.test
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Expand Up @@ -821,10 +821,10 @@
;; CHECK-NEXT: --disable-multibyte Disable multibyte array loads
;; CHECK-NEXT: and stores
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-relaxed-atomics Enable acquire/release atomic
;; CHECK-NEXT: --enable-acquire-release-atomics Enable acquire/release atomic
;; CHECK-NEXT: memory operations
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-relaxed-atomics Disable acquire/release atomic
;; CHECK-NEXT: --disable-acquire-release-atomics Disable acquire/release atomic
;; CHECK-NEXT: memory operations
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-custom-page-sizes Enable custom page sizes
Expand Down
4 changes: 2 additions & 2 deletions test/lit/help/wasm-opt.test
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Expand Up @@ -857,10 +857,10 @@
;; CHECK-NEXT: --disable-multibyte Disable multibyte array loads
;; CHECK-NEXT: and stores
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-relaxed-atomics Enable acquire/release atomic
;; CHECK-NEXT: --enable-acquire-release-atomics Enable acquire/release atomic
;; CHECK-NEXT: memory operations
;; CHECK-NEXT:
;; CHECK-NEXT: --disable-relaxed-atomics Disable acquire/release atomic
;; CHECK-NEXT: --disable-acquire-release-atomics Disable acquire/release atomic
;; CHECK-NEXT: memory operations
;; CHECK-NEXT:
;; CHECK-NEXT: --enable-custom-page-sizes Enable custom page sizes
Expand Down
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