diff --git a/gcc/config/loongarch/loongarch.cc b/gcc/config/loongarch/loongarch.cc
index c90fc726f05e858936d35d224549555197e75f04..b44d52adff1c705c77a7394f34184ce9ee085157 100644
--- a/gcc/config/loongarch/loongarch.cc
+++ b/gcc/config/loongarch/loongarch.cc
@@ -5426,12 +5426,32 @@ loongarch_expand_conditional_move (rtx *operands)
 	    }
 	}
 
+      auto is_binary_op_0_keep_orig = [](enum rtx_code code)
+	{
+	  switch (code)
+	    {
+	    case PLUS:
+	    case MINUS:
+	    case IOR:
+	    case XOR:
+	    case ROTATE:
+	    case ROTATERT:
+	    case ASHIFT:
+	    case ASHIFTRT:
+	    case LSHIFTRT:
+	      return true;
+	    default:
+	      return false;
+	    }
+	};
+
       /* Check if the optimization conditions are met.  */
       if (value_if_true_insn
 	  && value_if_false_insn
-	  /* Make sure that value_if_false and var are the same.  */
-	  && BINARY_P (value_if_true_insn_src
-		       = SET_SRC (single_set (value_if_true_insn)))
+	  /* Make sure that the orig value OP 0 keep orig.  */
+	  && (value_if_true_insn_src
+	      = SET_SRC (single_set (value_if_true_insn)))
+	  && is_binary_op_0_keep_orig ( GET_CODE (value_if_true_insn_src))
 	  /* Make sure that both value_if_true and value_if_false
 	     has the same var.  */
 	  && rtx_equal_p (XEXP (value_if_true_insn_src, 0),
@@ -11177,6 +11197,20 @@ loongarch_c_mode_for_suffix (char suffix)
   return VOIDmode;
 }
 
+static bool
+loongarch_noce_conversion_profitable_p (rtx_insn *seq, struct noce_if_info *if_info)
+{
+    enum rtx_class cls;
+      for (rtx_insn *insn = seq; insn; insn = NEXT_INSN (insn))
+    {
+       cls = GET_RTX_CLASS (GET_CODE (SET_SRC (single_set (insn))));
+      if ( cls == RTX_COMPARE || cls == RTX_COMM_COMPARE)
+    return false;
+    }
+
+  return default_noce_conversion_profitable_p (seq, if_info);
+}
+
 /* Initialize the GCC target structure.  */
 #undef TARGET_ASM_ALIGNED_HI_OP
 #define TARGET_ASM_ALIGNED_HI_OP "\t.half\t"
@@ -11448,6 +11482,9 @@ loongarch_c_mode_for_suffix (char suffix)
 #undef TARGET_C_MODE_FOR_SUFFIX
 #define TARGET_C_MODE_FOR_SUFFIX loongarch_c_mode_for_suffix
 
+#undef TARGET_NOCE_CONVERSION_PROFITABLE_P
+#define TARGET_NOCE_CONVERSION_PROFITABLE_P loongarch_noce_conversion_profitable_p
+
 struct gcc_target targetm = TARGET_INITIALIZER;
 
 #include "gt-loongarch.h"
diff --git a/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-1.c b/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-1.c
index ed13471aa90a0e95a44e71dd1c1adb5520744d9b..47802aa9688de832f57dc1ae1a4c0d9bd8f2220c 100644
--- a/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-1.c
+++ b/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-1.c
@@ -27,7 +27,7 @@ void
 test_lt ()
 {
   if (lm < ln)
-    lr *= (1 << 16);
+    lr += (1 << 16);
   lr += lm;
 }
 
@@ -35,7 +35,7 @@ void
 test_le ()
 {
   if (lm <= ln)
-    lr = lm * ((long)1 << 32);
+    lr = lm + ((long)1 << 32);
   else
     lr = lm;
   lr += lm;
diff --git a/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-2.c b/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-2.c
index ac72d4d933ad493440b16a021c5f826e8d21f503..743fd5e670e25fab8e2ee305a47786126b851492 100644
--- a/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-2.c
+++ b/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-2.c
@@ -29,7 +29,7 @@ void
 test_lez ()
 {
   if (lm <= 0)
-    lr &= (1 << 16);
+    lr |= (1 << 16);
   lr += lm;
 }
 
diff --git a/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-3.c b/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-3.c
new file mode 100644
index 0000000000000000000000000000000000000000..95887980cc5f5fa82ba21b1c72479cb309ee3765
--- /dev/null
+++ b/gcc/testsuite/gcc.target/loongarch/conditional-move-opt-3.c
@@ -0,0 +1,14 @@
+/* { dg-do compile } */
+/* { dg-options "-O2" } */
+/* { dg-final { scan-assembler "maskeqz" } } */
+/* { dg-final { scan-assembler "masknez" } } */
+
+extern long lm, ln, lr;
+
+void
+test_and ()
+{
+  if (lm < 0)
+    lr &= (1 << 16);
+  lr += lm;
+}