[PATCH] D137949: [RISCV] Branchless lowering for (select (x < 0), TrueConstant, FalseConstant) and (select (x >= 0), TrueConstant, FalseConstant)

Craig Topper via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Tue Nov 22 09:09:29 PST 2022


craig.topper requested changes to this revision.
craig.topper added inline comments.
This revision now requires changes to proceed.


================
Comment at: llvm/lib/Target/RISCV/RISCVISelLowering.cpp:9636
+      if (CCVal == ISD::CondCode::SETGE)
+        std::swap(TrueV, FalseV);
+
----------------
If you swap TrueV and FalseV here you need to swap them back at the end.


================
Comment at: llvm/lib/Target/RISCV/RISCVISelLowering.cpp:9652
+      }
+      std::swap(TrueSImm, FalseSImm);
+    }
----------------
Was this supposed to be TrueV and FalseV?


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D137949/new/

https://reviews.llvm.org/D137949



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