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[WebAssembly] Add another possible code-size optimization to README.txt 

llvm-svn: 262740
This commit is contained in:
Dan Gohman 2016-03-04 20:09:57 +00:00
parent dc395b9d2b
commit e6b81362e9
1 changed files with 6 additions and 0 deletions
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6
llvm/lib/Target/WebAssembly/README.txt
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@ -106,3 +106,9 @@ WebAssemblyRegColoring and/or WebAssemblyRegRenumbering should sort registers
according to their usage frequency to maximize the usage of smaller encodings.
//===---------------------------------------------------------------------===//
When the last statement in a function body computes the return value, it can
just let that value be the exit value of the outermost block, rather than
needing an explicit return operation.
//===---------------------------------------------------------------------===//