[PATCH] D57874: [WebAssembly] Make thread-related options consistent
Sam Clegg via Phabricator via cfe-commits
cfe-commits at lists.llvm.org
Thu Feb 7 17:33:06 PST 2019
sbc100 added a comment.
In D57874#1389981 <https://reviews.llvm.org/D57874#1389981>, @sunfish wrote:
> > - `-matomics` means `-mthread-model posix`
> The others sound reasonable, though this one seems a little surprising -- a user might have -matomics enabled because they're targeting a VM that has atomics, but still not want to use -mthread-model posix because their code doesn't actually using threads.
If you look at what "-mthread-model posix" actually means in the codebase it basically means "don't lower away atomics ops".
Its only used by WebAssembly and ARMTargetMachine to select the `createLowerAtomicPass`. Given that these are the only uses it seems like it should be removed or renamed.
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