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Unconditionally enable sse3, ssse3, and sse4.1 when fuzzing #3814

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merged 2 commits into from
Feb 16, 2022
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Unconditionally enable sse3, ssse3, and sse4.1 when fuzzing #3814

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69d3dfb
Unconditionally enable sse3, ssse3, and sse4.1 when fuzzing
alexcrichton Feb 16, 2022
57e2ec8
Update crates/fuzzing/src/generators.rs
alexcrichton Feb 16, 2022
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13 changes: 10 additions & 3 deletions crates/fuzzing/src/generators.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -699,9 +699,16 @@ impl<'a> Arbitrary<'a> for CodegenSettings {
if u.ratio(1, 10)? {
let flags = target_features! {
test: is_x86_feature_detected,
std:"sse3" => clif:"has_sse3",
std:"ssse3" => clif:"has_ssse3",
std:"sse4.1" => clif:"has_sse41",

// These features are considered to be baseline required by
// Wasmtime. Currently some SIMD code generation will
// fail if these features are disabled, so unconditionally
// enable them as we're not interested in fuzzing without
// them.
std:"sse3" => clif:"has_sse3" ratio: 1 in 1,
std:"ssse3" => clif:"has_ssse3" ratio: 1 in 1,
std:"sse4.1" => clif:"has_sse41" ratio: 1 in 1,

std:"sse4.2" => clif:"has_sse42",
std:"popcnt" => clif:"has_popcnt",
std:"avx" => clif:"has_avx",
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