diff --git a/llvm/test/MC/Mips/mips32r5/invalid.s b/llvm/test/MC/Mips/mips32r5/invalid.s
index 0d83005d5ccc..e74a23d03d5a 100644
--- a/llvm/test/MC/Mips/mips32r5/invalid.s
+++ b/llvm/test/MC/Mips/mips32r5/invalid.s
@@ -12,3 +12,11 @@
         jalr.hb $31, $31     # CHECK: :[[@LINE]]:9: error: source and destination must be different
         pref -1, 255($7)     # CHECK: :[[@LINE]]:14: error: expected 5-bit unsigned immediate
         pref 32, 255($7)     # CHECK: :[[@LINE]]:14: error: expected 5-bit unsigned immediate
+        mtc0  $4, $3, -1     # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mtc0  $4, $3, 8      # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mtc2  $4, $3, -1     # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mtc2  $4, $3, 8      # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mfc0  $4, $3, -1     # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mfc0  $4, $3, 8      # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mfc2  $4, $3, -1     # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mfc2  $4, $3, 8      # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
diff --git a/llvm/test/MC/Mips/mips32r6/invalid.s b/llvm/test/MC/Mips/mips32r6/invalid.s
index 1656ac1da350..602bfe2b7573 100644
--- a/llvm/test/MC/Mips/mips32r6/invalid.s
+++ b/llvm/test/MC/Mips/mips32r6/invalid.s
@@ -39,3 +39,11 @@ local_label:
         lsa $2, $3, $4, 5    # CHECK: :[[@LINE]]:25: error: expected immediate in range 1 .. 4
         pref -1, 255($7)     # CHECK: :[[@LINE]]:14: error: expected 5-bit unsigned immediate
         pref 32, 255($7)     # CHECK: :[[@LINE]]:14: error: expected 5-bit unsigned immediate
+        mtc0  $4, $3, -1     # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mtc0  $4, $3, 8      # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mtc2  $4, $3, -1     # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mtc2  $4, $3, 8      # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mfc0  $4, $3, -1     # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mfc0  $4, $3, 8      # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mfc2  $4, $3, -1     # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
+        mfc2  $4, $3, 8      # CHECK: :[[@LINE]]:23: error: expected 3-bit unsigned immediate
diff --git a/llvm/test/MC/Mips/mips64r5/invalid.s b/llvm/test/MC/Mips/mips64r5/invalid.s
index 3bdea15f5236..a88fb06d11de 100644
--- a/llvm/test/MC/Mips/mips64r5/invalid.s
+++ b/llvm/test/MC/Mips/mips64r5/invalid.s
@@ -14,3 +14,7 @@
         jalr.hb $31, $31     # CHECK: :[[@LINE]]:{{[0-9]+}}: error: source and destination must be different
         pref -1, 255($7)     # CHECK: :[[@LINE]]:14: error: expected 5-bit unsigned immediate
         pref 32, 255($7)     # CHECK: :[[@LINE]]:14: error: expected 5-bit unsigned immediate
+        dmtc0  $4, $3, -1    # CHECK: :[[@LINE]]:24: error: expected 3-bit unsigned immediate
+        dmtc0  $4, $3, 8     # CHECK: :[[@LINE]]:24: error: expected 3-bit unsigned immediate
+        dmfc0  $4, $3, -1    # CHECK: :[[@LINE]]:24: error: expected 3-bit unsigned immediate
+        dmfc0  $4, $3, 8     # CHECK: :[[@LINE]]:24: error: expected 3-bit unsigned immediate
diff --git a/llvm/test/MC/Mips/mips64r6/invalid.s b/llvm/test/MC/Mips/mips64r6/invalid.s
index cba20b15eea4..a28b234ac157 100644
--- a/llvm/test/MC/Mips/mips64r6/invalid.s
+++ b/llvm/test/MC/Mips/mips64r6/invalid.s
@@ -43,3 +43,7 @@ local_label:
         lsa     $2, $3, $4, 5     # CHECK: :[[@LINE]]:29: error: expected immediate in range 1 .. 4
         pref -1, 255($7)     # CHECK: :[[@LINE]]:14: error: expected 5-bit unsigned immediate
         pref 32, 255($7)     # CHECK: :[[@LINE]]:14: error: expected 5-bit unsigned immediate
+        dmtc0  $4, $3, -1    # CHECK: :[[@LINE]]:24: error: expected 3-bit unsigned immediate
+        dmtc0  $4, $3, 8     # CHECK: :[[@LINE]]:24: error: expected 3-bit unsigned immediate
+        dmfc0  $4, $3, -1    # CHECK: :[[@LINE]]:24: error: expected 3-bit unsigned immediate
+        dmfc0  $4, $3, 8     # CHECK: :[[@LINE]]:24: error: expected 3-bit unsigned immediate