Add LAHF instruction

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@12424 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index 2a7a93359399cf758d6d22ee324df3ab5fc0a54e..4e92b5c1f813bd96880e9a4328d420fee93fec43 100644 (file)
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -600,6 +600,7 @@ def TEST32mi : Im32i32<"test", 0xF7, MRM0m     >;          // flags = [mem32] &
 
 // Condition code ops, incl. set if equal/not equal/...
 def SAHF     : I  <"sahf" , 0x9E, RawFrm>, Imp<[AH],[]>;  // flags = AH
+def LAHF     : I  <"lahf" , 0x9F, RawFrm>, Imp<[],[AH]>;  // AH = flags
 
 def SETBr    : I  <"setb" , 0x92, MRM0r>, TB;            // R8 = <  unsign
 def SETBm    : Im8<"setb" , 0x92, MRM0m>, TB;            // [mem8] = <  unsign