https://llvm.org/bugs/show_bug.cgi?id=27524
Bug ID: 27524
Summary: return optimization opportunities
Product: libraries
Version: trunk
Hardware: PC
OS: Linux
Status: NEW
Severity: normal
Priority: P
Component: Backend: WebAssembly
Assignee: unassignedb...@nondot.org
Reporter: alonza...@gmail.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
The wasm backend currently emits unnecessary returns, which are unnecessary
since control flow goes out of the function anyhow, like a return at the very
end of a function (which can be replaced with nothing, or with the value if
there is one).
On BananaBread, removing such returns eliminates 2906 out of 4142 (70%, 0.3% of
total nodes).
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