Skip to content
Commit 16dc1650 authored by Craig Topper's avatar Craig Topper
Browse files

[InstCombine] Don't transform ((C1 OP zext(X)) & C2) -> zext((C1 OP X) & C2)...

[InstCombine] Don't transform ((C1 OP zext(X)) & C2) -> zext((C1 OP X) & C2) if either zext or OP has another use.

If they have other users we'll just end up increasing the instruction count.

We might be able to weaken this to only one of them having a single use if we can prove that the and will be removed.

Fixes PR41164.

Differential Revision: https://reviews.llvm.org/D59630

llvm-svn: 356690
parent 13833404
Loading
Loading
Loading
Loading
0% Loading or .
You are about to add 0 people to the discussion. Proceed with caution.
Please to comment