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| -rw-r--r-- | llvm/docs/Lexicon.rst | 7 |
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diff --git a/llvm/docs/Lexicon.rst b/llvm/docs/Lexicon.rst index 5d16091e27e..35687e25818 100644 --- a/llvm/docs/Lexicon.rst +++ b/llvm/docs/Lexicon.rst @@ -38,6 +38,13 @@ B **BB Vectorization** Basic-Block Vectorization +**BDCE** + Bit-tracking dead code elimination. Some bit-wise instructions (shifts, + ands, ors, etc.) "kill" some of their input bits -- that is, they make it + such that those bits can be either zero or one without affecting control or + data flow of a program. The BDCE pass removes instructions that only + compute these dead bits. + **BURS** Bottom Up Rewriting System --- A method of instruction selection for code generation. An example is the `BURG |
