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[Lexicon] Add BDCE

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Summary: Add an entry to the Lexicon for "BDCE."

Reviewers: jmolloy, hfinkel

Reviewed By: jmolloy

Differential Revision: https://reviews.llvm.org/D31861

llvm-svn: 302169
This commit is contained in:
Brian Gesiak 2017-05-04 16:50:37 +00:00
parent e999d084c2
commit 23bdd90743
1 changed files with 7 additions and 0 deletions
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docs/Lexicon.rst
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@ -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