diff --git a/mlir/lib/Conversion/MemRefToLLVM/MemRefToLLVM.cpp b/mlir/lib/Conversion/MemRefToLLVM/MemRefToLLVM.cpp
--- a/mlir/lib/Conversion/MemRefToLLVM/MemRefToLLVM.cpp
+++ b/mlir/lib/Conversion/MemRefToLLVM/MemRefToLLVM.cpp
@@ -1753,10 +1753,14 @@
     return LLVM::AtomicBinOp::add;
   case arith::AtomicRMWKind::assign:
     return LLVM::AtomicBinOp::xchg;
+  case arith::AtomicRMWKind::maxf:
+    return LLVM::AtomicBinOp::fmax;
   case arith::AtomicRMWKind::maxs:
     return LLVM::AtomicBinOp::max;
   case arith::AtomicRMWKind::maxu:
     return LLVM::AtomicBinOp::umax;
+  case arith::AtomicRMWKind::minf:
+    return LLVM::AtomicBinOp::fmin;
   case arith::AtomicRMWKind::mins:
     return LLVM::AtomicBinOp::min;
   case arith::AtomicRMWKind::minu: