[PATCH] D59909: [X86] Add custom isel to select ADD/SUB/OR/XOR/AND to their non-immediate forms under optsize when the immediate has additional users.
Simon Pilgrim via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Wed Jun 26 08:35:24 PDT 2019
RKSimon accepted this revision.
RKSimon added a comment.
This revision is now accepted and ready to land.
I've chatted with @andreadb and other than taking the time and effort to create a separate pass to perform this generally we can't think of another way to do this. We do seem to be putting more and more strain on isel though....
================
Comment at: llvm/lib/Target/X86/X86ISelDAGToDAG.cpp:4271
+
+ ConstantSDNode *Cst = dyn_cast<ConstantSDNode>(N1);
+ if (!Cst)
----------------
auto *Cst
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D59909/new/
https://reviews.llvm.org/D59909
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