diff options
| -rw-r--r-- | llvm/lib/Target/WebAssembly/README.txt | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/lib/Target/WebAssembly/README.txt b/llvm/lib/Target/WebAssembly/README.txt index 68f902ee59f..a2b35b23447 100644 --- a/llvm/lib/Target/WebAssembly/README.txt +++ b/llvm/lib/Target/WebAssembly/README.txt @@ -100,3 +100,9 @@ WebAssembly registers are implicitly initialized to zero. Explicit zeroing is therefore often redundant and could be optimized away. //===---------------------------------------------------------------------===// + +Small indices may use smaller encodings than large indices. +WebAssemblyRegRenumbering should sort registers according to their usage +frequency to maximize the usage of smaller encodings. + +//===---------------------------------------------------------------------===// |
