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Base: Return the correct value for fib(0) in Wasm example

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Previously, using `wasm-decompile` to decompile the Wasm bytecode on
the `wasm.html` example page gave this output:

```
export function fib(a:int):int {
  if (a < 2) { return 1 }
  return fib(a - 2) + fib(a - 1);
}
```

With this change the bytecode now decompiles to:

```
export function fib(a:int):int {
  if (a <= 0) { return 0 }
  if (a == 1) { return 1 }
  return fib(a - 2) + fib(a - 1);
}
```

This means that the example page now prints the correct answer of 55 to
the console for `fib(10)`. Previously, `fib(10)` returned 89.

I also used `wasm-opt -Oz`, which removed an unnecessary `return`
instruction, saving 1 byte!
This commit is contained in:
Tim Ledbetter
2024-04-10 18:56:14 +01:00
committed by Ali Mohammad Pur
parent da60529ab8
commit 8892c25520
1 changed files with 4 additions and 4 deletions
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8
Base/res/html/misc/wasm.html
View File

@@ -4,10 +4,10 @@
const bytes = new Uint8Array([ const bytes = new Uint8Array([
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]); ]);
WebAssembly.compile(bytes) WebAssembly.compile(bytes)
.then(module => WebAssembly.instantiate(module)) .then(module => WebAssembly.instantiate(module))