mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-10-21 20:12:56 +02:00
29593ddf27
"%z = %x and %y". If GVN can prove that %y equals %x, then it turns this into "%z = %x and %x". With the new code, %z will be replaced with %x everywhere (and then deleted). Previously %z would be value numbered too, which is a waste of time. Also, while a clever value numbering algorithm would give %z the same value number as %x, our current one doesn't do so (at least I don't think it does). The new logic has an essentially equivalent effect to what you would get if %z was given the same value number as %x, i.e. it should make value numbering smarter. While there, get hold of target data once at the start rather than a gazillion times all over the place. llvm-svn: 118923 |
||
---|---|---|
.. | ||
Analysis | ||
Archive | ||
AsmParser | ||
Bitcode | ||
CodeGen | ||
CompilerDriver | ||
ExecutionEngine | ||
Linker | ||
MC | ||
Support | ||
System | ||
Target | ||
Transforms | ||
VMCore | ||
Makefile |