[PATCH] D57389: [X86] Improve use of SHLD/SHRD

[Simon Pilgrim via Phabricator via llvm-commits]

RKSimon added inline comments.


================
Comment at: lib/Target/X86/X86ISelLowering.cpp:37054
+        ShAmt1Op1 = ShAmt1Op1.getOperand(0);
+      }
       if (ShAmt1Op1.getOpcode() == ISD::TRUNCATE)
----------------
Maybe use DAG.GetDemandedBits ?


Repository:
  rL LLVM

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D57389/new/

https://reviews.llvm.org/D57389