[llvm] 5b606bd - [LoongArch] Use getShiftAmountConstant. NFC

[Craig Topper via llvm-commits]

Author: Craig Topper
Date: 2025-12-20T17:47:43-08:00
New Revision: 5b606bd5f8ddcdb536f9da535b898680b3c27bd4

URL: https://github.com/llvm/llvm-project/commit/5b606bd5f8ddcdb536f9da535b898680b3c27bd4
DIFF: https://github.com/llvm/llvm-project/commit/5b606bd5f8ddcdb536f9da535b898680b3c27bd4.diff

LOG: [LoongArch] Use getShiftAmountConstant. NFC

This avoids an unnecessary type legalization step to fix the shift amount.

Added: 
    

Modified: 
    llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp

Removed: 
    


################################################################################
diff  --git a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
index cf892f0ae23db..fc999b9727521 100644
--- a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
+++ b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
@@ -5542,7 +5542,7 @@ static SDValue performBITCASTCombine(SDNode *N, SelectionDAG &DAG,
       Lo = DAG.getNode(LoongArchISD::VMSKLTZ, DL, GRLenVT, Lo);
       Hi = DAG.getNode(LoongArchISD::VMSKLTZ, DL, GRLenVT, Hi);
       Hi = DAG.getNode(ISD::SHL, DL, GRLenVT, Hi,
-                       DAG.getConstant(16, DL, MVT::i8));
+                       DAG.getShiftAmountConstant(16, GRLenVT, DL));
       V = DAG.getNode(ISD::OR, DL, GRLenVT, Lo, Hi);
     } else if (UseLASX) {
       return SDValue();