[llvm-bugs] [Bug 33337] New: [WebAssembly] Consider changing size_t back to unsigned long

[via llvm-bugs]

https://bugs.llvm.org/show_bug.cgi?id=33337

            Bug ID: 33337
           Summary: [WebAssembly] Consider changing size_t back to
                    unsigned long
           Product: clang
           Version: unspecified
          Hardware: Other
                OS: other
            Status: NEW
          Keywords: ABI
          Severity: enhancement
          Priority: P
         Component: Frontend
          Assignee: unassignedclangbugs at nondot.org
          Reporter: dan433584 at gmail.com
                CC: dschuff at google.com, jgravelle at google.com,
                    llvm-bugs at lists.llvm.org

r280420 changed WebAssembly's size_t and friends on wasm32 to be unsigned int.
This is convenient at present because it matches the asm.js ABI.

However, it is worth considering changing size_t back to unsigned long before
it comes time to stablize the ABI. An advantage of this is that it makes most
mangled names consistent between wasm32 and wasm64. For example, operator new
would be "_Znwm" in both, rather than "_Znwj" in wasm32 and "_Znwm" in wasm64,
which is convenient for tools that work with lists of symbol names.

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