David Bolvansky
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358b80b340
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[InstCombine] Fold sub (or A, B) (and A, B) to (xor A, B)
Summary:
```
Name: sub or and to xor
%or = or i32 %y, %x
%and = and i32 %x, %y
%sub = sub i32 %or, %and
=>
%sub = xor i32 %x, %y
Optimization: sub or and to xor
Done: 1
Optimization is correct!
```
https://rise4fun.com/Alive/eJu
Reviewers: spatel, lebedev.ri
Reviewed By: lebedev.ri
Subscribers: hiraditya, llvm-commits
Tags: #llvm
Differential Revision: https://reviews.llvm.org/D67153
llvm-svn: 370883
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2019-09-04 12:00:33 +00:00 |