--- zzzz-none-000/linux-3.10.107/arch/x86/tools/gen-insn-attr-x86.awk	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/arch/x86/tools/gen-insn-attr-x86.awk	2021-02-04 17:41:59.000000000 +0000
@@ -68,7 +68,7 @@
 
 	lprefix1_expr = "\\((66|!F3)\\)"
 	lprefix2_expr = "\\(F3\\)"
-	lprefix3_expr = "\\((F2|!F3)\\)"
+	lprefix3_expr = "\\((F2|!F3|66\\&F2)\\)"
 	lprefix_expr = "\\((66|F2|F3)\\)"
 	max_lprefix = 4
 
@@ -83,6 +83,8 @@
 	prefix_num["Operand-Size"] = "INAT_PFX_OPNDSZ"
 	prefix_num["REPNE"] = "INAT_PFX_REPNE"
 	prefix_num["REP/REPE"] = "INAT_PFX_REPE"
+	prefix_num["XACQUIRE"] = "INAT_PFX_REPNE"
+	prefix_num["XRELEASE"] = "INAT_PFX_REPE"
 	prefix_num["LOCK"] = "INAT_PFX_LOCK"
 	prefix_num["SEG=CS"] = "INAT_PFX_CS"
 	prefix_num["SEG=DS"] = "INAT_PFX_DS"