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Support SSE 4.2 for the Singlepass compiler #2775

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Feb 17, 2022
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4 changes: 3 additions & 1 deletion lib/compiler-singlepass/Cargo.toml
Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,8 @@ target-lexicon = { version = "0.12.2", default-features = false }
maintenance = { status = "actively-developed" }

[features]
default = ["std", "rayon"]
default = ["std", "rayon", "avx"]
std = ["wasmer-compiler/std", "wasmer-types/std"]
core = ["hashbrown", "wasmer-types/core"]
sse = []
avx = []
15 changes: 9 additions & 6 deletions lib/compiler-singlepass/src/compiler.rs
Original file line number Diff line number Diff line change
Expand Up @@ -69,13 +69,16 @@ impl Compiler for SinglepassCompiler {
))
}
}
if target.triple().architecture == Architecture::X86_64
&& !target.cpu_features().contains(CpuFeature::AVX)
{

let simd_arch = if target.cpu_features().contains(CpuFeature::AVX) {
CpuFeature::AVX
} else if target.cpu_features().contains(CpuFeature::SSE42) {
CpuFeature::SSE42
} else {
return Err(CompileError::UnsupportedTarget(
"x86_64 without AVX".to_string(),
"x86_64 without AVX or SSE 4.2".to_string(),
));
}
};
if compile_info.features.multi_value {
return Err(CompileError::UnsupportedFeature("multivalue".to_string()));
}
Expand Down Expand Up @@ -131,7 +134,7 @@ impl Compiler for SinglepassCompiler {

match target.triple().architecture {
Architecture::X86_64 => {
let machine = MachineX86_64::new();
let machine = MachineX86_64::new(Some(simd_arch));
let mut generator = FuncGen::new(
module,
&self.config,
Expand Down
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