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Instead of converting them to doubles and doing double math, just do the
arithmetic operation in i64 space instead.
This gives us a ~1.25x speed-up on this kind of micro-benchmark:
(() => {
let a = -2124299999;
for (let i = 0; i < 100_000_000; ++i) {
a + a;
}
})()
Same idea for Add, Sub, and Mul.
There's a fair bit of overflowing Int32 arithmetic in some of the
JetStream benchmarks, and this seems like an obvious improvement.
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| .. | ||
| ASTCodegen.cpp | ||
| BasicBlock.cpp | ||
| BasicBlock.h | ||
| Builtins.cpp | ||
| Builtins.h | ||
| CodeGenerationError.cpp | ||
| CodeGenerationError.h | ||
| Executable.cpp | ||
| Executable.h | ||
| Generator.cpp | ||
| Generator.h | ||
| IdentifierTable.cpp | ||
| IdentifierTable.h | ||
| Instruction.cpp | ||
| Instruction.h | ||
| Interpreter.cpp | ||
| Interpreter.h | ||
| Label.cpp | ||
| Label.h | ||
| Op.h | ||
| Operand.h | ||
| RegexTable.cpp | ||
| RegexTable.h | ||
| Register.h | ||
| ScopedOperand.cpp | ||
| ScopedOperand.h | ||
| StringTable.cpp | ||
| StringTable.h | ||