Index: lib/Target/Mips/Mips32r6InstrInfo.td
===================================================================
--- lib/Target/Mips/Mips32r6InstrInfo.td
+++ lib/Target/Mips/Mips32r6InstrInfo.td
@@ -30,7 +30,7 @@
 // Removed: bc2f, bc2t
 // Removed: bgezal
 // Removed: bltzal
-// Removed: c.cond.fmt, bc1[ft]
+// Removed: c.cond.fmt
 // Removed: div, divu
 // Removed: jalx
 // Removed: ldxc1
Index: lib/Target/Mips/MipsInstrFPU.td
===================================================================
--- lib/Target/Mips/MipsInstrFPU.td
+++ lib/Target/Mips/MipsInstrFPU.td
@@ -504,9 +504,9 @@
 def MIPS_BRANCH_T  : PatLeaf<(i32 1)>;
 
 def BC1F : MMRel, BC1F_FT<"bc1f", brtarget, IIBranch, MIPS_BRANCH_F>,
-           BC1F_FM<0, 0>;
+           BC1F_FM<0, 0>, ISA_MIPS1_NOT_32R6_64R6;
 def BC1T : MMRel, BC1F_FT<"bc1t", brtarget, IIBranch, MIPS_BRANCH_T>,
-           BC1F_FM<0, 1>;
+           BC1F_FM<0, 1>, ISA_MIPS1_NOT_32R6_64R6;
 
 //===----------------------------------------------------------------------===//
 // Floating Point Flag Conditions
Index: test/MC/Mips/mips32r6/invalid-mips1.s
===================================================================
--- test/MC/Mips/mips32r6/invalid-mips1.s
+++ test/MC/Mips/mips32r6/invalid-mips1.s
@@ -6,3 +6,5 @@
 
 	.set noat
         addi      $13,$9,26322        # CHECK: :[[@LINE]]:{{[0-9]+}}: error: instruction requires a CPU feature not currently enabled
+        bc1f      $fcc0, 256          # CHECK: :[[@LINE]]:{{[0-9]+}}: error: instruction requires a CPU feature not currently enabled
+        bc1t      $fcc0, 256          # CHECK: :[[@LINE]]:{{[0-9]+}}: error: instruction requires a CPU feature not currently enabled
Index: test/MC/Mips/mips32r6/invalid-mips2.s
===================================================================
--- test/MC/Mips/mips32r6/invalid-mips2.s
+++ test/MC/Mips/mips32r6/invalid-mips2.s
@@ -6,6 +6,8 @@
 
 	.set noat
         addi      $13,$9,26322        # CHECK: :[[@LINE]]:{{[0-9]+}}: error: instruction requires a CPU feature not currently enabled
+        bc1f      $fcc0, 256          # CHECK: :[[@LINE]]:{{[0-9]+}}: error: instruction requires a CPU feature not currently enabled
+        bc1t      $fcc0, 256          # CHECK: :[[@LINE]]:{{[0-9]+}}: error: instruction requires a CPU feature not currently enabled
         teqi      $s5,-17504          # CHECK: :[[@LINE]]:{{[0-9]+}}: error: instruction requires a CPU feature not currently enabled
         tgei      $s1,5025            # CHECK: :[[@LINE]]:{{[0-9]+}}: error: instruction requires a CPU feature not currently enabled
         tgeiu     $sp,-28621          # CHECK: :[[@LINE]]:{{[0-9]+}}: error: instruction requires a CPU feature not currently enabled