From 74e52108090f29a92ebb78d33451104bc445ac55 Mon Sep 17 00:00:00 2001
From: Sean Callanan <scallanan@apple.com>
Date: Thu, 23 Jul 2009 23:39:34 +0000
Subject: [PATCH] Added a 2+-byte NOP instruction to the Intel tables, for the
assembler/disassembler to use.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@76914 91177308-0d34-0410-b5e6-96231b3b80d8
---
lib/Target/X86/X86InstrInfo.td | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index eaafe0a7ce2..0e40965a4c1 100644
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -489,8 +489,11 @@ def ADJCALLSTACKUP32 : I<0, Pseudo, (outs), (ins i32imm:$amt1, i32imm:$amt2),
}
// Nop
-let neverHasSideEffects = 1 in
+let neverHasSideEffects = 1 in {
def NOOP : I<0x90, RawFrm, (outs), (ins), "nop", []>;
+ def NOOPL : I<0x1f, MRM0m, (outs), (ins i32mem:$zero),
+ "nopl\t$zero", []>, TB;
+}
// PIC base
let neverHasSideEffects = 1, isNotDuplicable = 1, Uses = [ESP] in