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| author | Jakub Konka <kubkon@jakubkonka.com> | 2020-05-26 17:16:25 +0200 |
|---|---|---|
| committer | Jakub Konka <kubkon@jakubkonka.com> | 2020-05-26 17:17:32 +0200 |
| commit | 015c899297c9fdc8ef9d0d22af29a7a0d0bdbc5c (patch) | |
| tree | dc7f91bfdd2d218628a99b9c4484533b4b890246 /src/codegen.cpp | |
| parent | 4b8077ea8e888382fc73dd8a19c6e9160f2cef46 (diff) | |
| download | zig-015c899297c9fdc8ef9d0d22af29a7a0d0bdbc5c.tar.gz zig-015c899297c9fdc8ef9d0d22af29a7a0d0bdbc5c.zip | |
Make align expr on fns a compile error in Wasm
In Wasm, specifying alignment of function pointers makes little sense
since function pointers are in fact indices to a Wasm table, therefore
any alignment check on those is invalid. This can cause unexpected
behaviour when checking expected alignment with `@ptrToInt(fn_ptr)`
or similar. This commit proposes to make `align` expressions a
compile error when compiled to Wasm architecture.
Some references:
[1] [Mozilla: WebAssembly Tables](https://developer.mozilla.org/en-US/docs/WebAssembly/Understanding_the_text_format#WebAssembly_tables)
[2] [Sunfishcode's Wasm Ref Manual](https://github.com/sunfishcode/wasm-reference-manual/blob/master/WebAssembly.md#indirect-call)
Diffstat (limited to 'src/codegen.cpp')
0 files changed, 0 insertions, 0 deletions