From: Chris Lattner <sabre@nondot.org>
Date: Sat, 6 Nov 2010 07:48:45 +0000 (+0000)
Subject: move the lcall/ljmp aliases to the .td file.
X-Git-Tag: android-x86-6.0-r1~1003^2~420
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=8caa290a77cc6e71457fcc6b6bfac907510dc0f4;p=android-x86%2Fexternal-llvm.git

move the lcall/ljmp aliases to the .td file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@118332 91177308-0d34-0410-b5e6-96231b3b80d8
---

diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp
index 9b57827a777..e3c427f8ced 100644
--- a/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -940,35 +940,6 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
                                                NameLoc, NameLoc));
   }
 
-  // jmp $42,$5 -> ljmp, similarly for call.
-  if ((Name.startswith("call") || Name.startswith("jmp")) &&
-      Operands.size() == 3 &&
-      static_cast<X86Operand*>(Operands[1])->isImm() &&
-      static_cast<X86Operand*>(Operands[2])->isImm()) {
-    const char *NewOpName = StringSwitch<const char *>(Name)
-      .Case("jmp", "ljmp")
-      .Case("jmpw", "ljmpw")
-      .Case("jmpl", "ljmpl")
-      .Case("jmpq", "ljmpq")
-      .Case("call", "lcall")
-      .Case("callw", "lcallw")
-      .Case("calll", "lcalll")
-      .Case("callq", "lcallq")
-    .Default(0);
-    if (NewOpName) {
-      delete Operands[0];
-      Operands[0] = X86Operand::CreateToken(NewOpName, NameLoc);
-      Name = NewOpName;
-    }
-  }
-
-  // lcall  and ljmp  -> lcalll and ljmpl
-  if ((Name == "lcall" || Name == "ljmp") && Operands.size() == 3) {
-    delete Operands[0];
-    Operands[0] = X86Operand::CreateToken(Name == "lcall" ? "lcalll" : "ljmpl",
-                                          NameLoc);
-  }
-
   // fstp <mem> -> fstps <mem>.  Without this, we'll default to fstpl due to
   // suffix searching.
   if (Name == "fstp" && Operands.size() == 2 &&
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index fd94d22bdf0..8b3c9bca50a 100644
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -1370,16 +1370,32 @@ defm : IntegerCondCodeMnemonicAlias<"cmov", "q">;
 // Assembler Instruction Aliases
 //===----------------------------------------------------------------------===//
 
-// movsd with no operands (as opposed to the SSE scalar move of a double) is an
-// alias for movsl. (as in rep; movsd)
-def : InstAlias<"movsd", (MOVSD)>;
-
 // clr aliases.
 def : InstAlias<"clrb $reg", (XOR8rr  GR8 :$reg, GR8 :$reg)>;
 def : InstAlias<"clrw $reg", (XOR16rr GR16:$reg, GR16:$reg)>;
 def : InstAlias<"clrl $reg", (XOR32rr GR32:$reg, GR32:$reg)>;
 def : InstAlias<"clrq $reg", (XOR64rr GR64:$reg, GR64:$reg)>;
 
+// lcall and ljmp aliases.  This seems to be an odd mapping in 64-bit mode, but
+// this is compatible with what GAS does.
+def : InstAlias<"lcall $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
+def : InstAlias<"ljmp $seg, $off",  (FARJMP32i  i32imm:$off, i16imm:$seg)>;
+def : InstAlias<"lcall *$dst",      (FARCALL32m opaque48mem:$dst)>;
+def : InstAlias<"ljmp *$dst",       (FARJMP32m  opaque48mem:$dst)>;
+
+// jmp and call aliases for lcall and ljmp.  jmp $42,$5 -> ljmp
+def : InstAlias<"call $seg, $off",  (FARCALL32i i32imm:$off, i16imm:$seg)>;
+def : InstAlias<"jmp $seg, $off",   (FARJMP32i  i32imm:$off, i16imm:$seg)>;
+def : InstAlias<"callw $seg, $off", (FARCALL16i i16imm:$off, i16imm:$seg)>;
+def : InstAlias<"jmpw $seg, $off",  (FARJMP16i  i16imm:$off, i16imm:$seg)>;
+def : InstAlias<"calll $seg, $off", (FARCALL32i i32imm:$off, i16imm:$seg)>;
+def : InstAlias<"jmpl $seg, $off",  (FARJMP32i  i32imm:$off, i16imm:$seg)>;
+
+
+// movsd with no operands (as opposed to the SSE scalar move of a double) is an
+// alias for movsl. (as in rep; movsd)
+def : InstAlias<"movsd", (MOVSD)>;
+
 // movsx aliases
 def : InstAlias<"movsx $src, $dst", (MOVSX16rr8W GR16:$dst, GR8:$src)>;
 def : InstAlias<"movsx $src, $dst", (MOVSX16rm8W GR16:$dst, i8mem:$src)>;