diff --git a/llvm/lib/Target/LoongArch/LoongArchISelLowering.h b/llvm/lib/Target/LoongArch/LoongArchISelLowering.h
--- a/llvm/lib/Target/LoongArch/LoongArchISelLowering.h
+++ b/llvm/lib/Target/LoongArch/LoongArchISelLowering.h
@@ -204,6 +204,7 @@
 
   bool isLegalICmpImmediate(int64_t Imm) const override;
   bool isLegalAddImmediate(int64_t Imm) const override;
+  bool isZExtFree(SDValue Val, EVT VT2) const override;
 
   bool hasAndNotCompare(SDValue Y) const override;
 
diff --git a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
--- a/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
+++ b/llvm/lib/Target/LoongArch/LoongArchISelLowering.cpp
@@ -3251,6 +3251,21 @@
   return isInt<12>(Imm);
 }
 
+bool LoongArchTargetLowering::isZExtFree(SDValue Val, EVT VT2) const {
+  // Zexts are free if they can be combined with a load.
+  // Don't advertise i32->i64 zextload as being free for LA64. It interacts
+  // poorly with type legalization of compares preferring sext.
+  if (auto *LD = dyn_cast<LoadSDNode>(Val)) {
+    EVT MemVT = LD->getMemoryVT();
+    if ((MemVT == MVT::i8 || MemVT == MVT::i16) &&
+        (LD->getExtensionType() == ISD::NON_EXTLOAD ||
+         LD->getExtensionType() == ISD::ZEXTLOAD))
+      return true;
+  }
+
+  return TargetLowering::isZExtFree(Val, VT2);
+}
+
 bool LoongArchTargetLowering::hasAndNotCompare(SDValue Y) const {
   // TODO: Support vectors.
   if (Y.getValueType().isVector())
diff --git a/llvm/test/CodeGen/LoongArch/zext-with-load-is-free.ll b/llvm/test/CodeGen/LoongArch/zext-with-load-is-free.ll
--- a/llvm/test/CodeGen/LoongArch/zext-with-load-is-free.ll
+++ b/llvm/test/CodeGen/LoongArch/zext-with-load-is-free.ll
@@ -16,8 +16,7 @@
 ; LA32-NEXT:    ori $a2, $zero, 136
 ; LA32-NEXT:    bne $a1, $a2, .LBB0_3
 ; LA32-NEXT:  # %bb.1: # %entry
-; LA32-NEXT:    ld.b $a0, $a0, 1
-; LA32-NEXT:    andi $a0, $a0, 255
+; LA32-NEXT:    ld.bu $a0, $a0, 1
 ; LA32-NEXT:    ori $a1, $zero, 7
 ; LA32-NEXT:    bne $a0, $a1, .LBB0_3
 ; LA32-NEXT:  # %bb.2: # %if.end
@@ -35,8 +34,7 @@
 ; LA64-NEXT:    ori $a2, $zero, 136
 ; LA64-NEXT:    bne $a1, $a2, .LBB0_3
 ; LA64-NEXT:  # %bb.1: # %entry
-; LA64-NEXT:    ld.b $a0, $a0, 1
-; LA64-NEXT:    andi $a0, $a0, 255
+; LA64-NEXT:    ld.bu $a0, $a0, 1
 ; LA64-NEXT:    ori $a1, $zero, 7
 ; LA64-NEXT:    bne $a0, $a1, .LBB0_3
 ; LA64-NEXT:  # %bb.2: # %if.end
@@ -72,8 +70,7 @@
 ; LA32-NEXT:    ld.hu $a2, $a0, 0
 ; LA32-NEXT:    bne $a2, $a1, .LBB1_3
 ; LA32-NEXT:  # %bb.1: # %entry
-; LA32-NEXT:    ld.h $a0, $a0, 2
-; LA32-NEXT:    bstrpick.w $a0, $a0, 15, 0
+; LA32-NEXT:    ld.hu $a0, $a0, 2
 ; LA32-NEXT:    ori $a1, $zero, 7
 ; LA32-NEXT:    bne $a0, $a1, .LBB1_3
 ; LA32-NEXT:  # %bb.2: # %if.end
@@ -92,8 +89,7 @@
 ; LA64-NEXT:    ld.hu $a2, $a0, 0
 ; LA64-NEXT:    bne $a2, $a1, .LBB1_3
 ; LA64-NEXT:  # %bb.1: # %entry
-; LA64-NEXT:    ld.h $a0, $a0, 2
-; LA64-NEXT:    bstrpick.d $a0, $a0, 15, 0
+; LA64-NEXT:    ld.hu $a0, $a0, 2
 ; LA64-NEXT:    ori $a1, $zero, 7
 ; LA64-NEXT:    bne $a0, $a1, .LBB1_3
 ; LA64-NEXT:  # %bb.2: # %if.end