diff --git a/llvm/lib/Target/X86/X86InstrInfo.td b/llvm/lib/Target/X86/X86InstrInfo.td
--- a/llvm/lib/Target/X86/X86InstrInfo.td
+++ b/llvm/lib/Target/X86/X86InstrInfo.td
@@ -2939,7 +2939,7 @@
 let SchedRW = [WriteSystem] in {
   let Uses = [EAX, EDX] in
   def INVLPGB32 : I<0x01, MRM_FE, (outs), (ins),
-                  "invlpgb}", []>,
+                  "invlpgb", []>,
                   PS, Requires<[Not64BitMode]>;
   let Uses = [RAX, EDX] in
   def INVLPGB64 : I<0x01, MRM_FE, (outs), (ins),
diff --git a/llvm/lib/Target/X86/X86InstrSystem.td b/llvm/lib/Target/X86/X86InstrSystem.td
--- a/llvm/lib/Target/X86/X86InstrSystem.td
+++ b/llvm/lib/Target/X86/X86InstrSystem.td
@@ -25,18 +25,18 @@
   def TRAP    : I<0x0B, RawFrm, (outs), (ins), "ud2", [(trap)]>, TB;
 
   def UD1Wm   : I<0xB9, MRMSrcMem, (outs), (ins GR16:$src1, i16mem:$src2),
-                  "ud1{w} {$src2, $src1|$src1, $src2}", []>, TB, OpSize16;
+                  "ud1{w}\t{$src2, $src1|$src1, $src2}", []>, TB, OpSize16;
   def UD1Lm   : I<0xB9, MRMSrcMem, (outs), (ins GR32:$src1, i32mem:$src2),
-                  "ud1{l} {$src2, $src1|$src1, $src2}", []>, TB, OpSize32;
+                  "ud1{l}\t{$src2, $src1|$src1, $src2}", []>, TB, OpSize32;
   def UD1Qm   : RI<0xB9, MRMSrcMem, (outs), (ins GR64:$src1, i64mem:$src2),
-                   "ud1{q} {$src2, $src1|$src1, $src2}", []>, TB;
+                   "ud1{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
 
   def UD1Wr   : I<0xB9, MRMSrcReg, (outs), (ins GR16:$src1, GR16:$src2),
-                  "ud1{w} {$src2, $src1|$src1, $src2}", []>, TB, OpSize16;
+                  "ud1{w}\t{$src2, $src1|$src1, $src2}", []>, TB, OpSize16;
   def UD1Lr   : I<0xB9, MRMSrcReg, (outs), (ins GR32:$src1, GR32:$src2),
-                  "ud1{l} {$src2, $src1|$src1, $src2}", []>, TB, OpSize32;
+                  "ud1{l}\t{$src2, $src1|$src1, $src2}", []>, TB, OpSize32;
   def UD1Qr   : RI<0xB9, MRMSrcReg, (outs), (ins GR64:$src1, GR64:$src2),
-                   "ud1{q} {$src2, $src1|$src1, $src2}", []>, TB;
+                   "ud1{q}\t{$src2, $src1|$src1, $src2}", []>, TB;
 }
 
 let isTerminator = 1 in