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Implement Wasm string equality

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This commit is contained in:
Brian Carroll 2021-12-14 10:45:47 +00:00
parent e1a04c2661
commit 86d8e2789e
3 changed files with 42 additions and 35 deletions
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10
compiler/gen_wasm/src/low_level.rs
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@ -10,7 +10,9 @@ use crate::wasm_module::{Align, CodeBuilder, ValueType::*};
pub enum LowlevelBuildResult {
Done,
BuiltinCall(&'static str),
GeneratedHelper,
SpecializedEq,
SpecializedNotEq,
SpecializedHash,
NotImplemented,
}
@ -564,7 +566,7 @@ pub fn decode_low_level<'a>(
}
Int128 => compare_bytes(code_builder),
Float128 => return NotImplemented,
DataStructure => return GeneratedHelper,
DataStructure => return SpecializedEq,
}
}
}
@ -580,7 +582,7 @@ pub fn decode_low_level<'a>(
},
StoredValue::StackMemory { format, .. } => {
if matches!(format, DataStructure) {
return GeneratedHelper;
return SpecializedNotEq;
} else {
decode_low_level(code_builder, storage, LowLevel::Eq, args, ret_layout);
code_builder.i32_eqz();
@ -590,7 +592,7 @@ pub fn decode_low_level<'a>(
And => code_builder.i32_and(),
Or => code_builder.i32_or(),
Not => code_builder.i32_eqz(),
Hash => return NotImplemented, // TODO: generated helpers
Hash => return SpecializedHash,
ExpectTrue => return NotImplemented,
RefCountGetPtr => {
code_builder.i32_const(4);