From 8b260a76445762f109cc8cf6577435c4cc59e3aa Mon Sep 17 00:00:00 2001
From: Chris Lattner <sabre@nondot.org>
Date: Sat, 30 Oct 2010 18:07:17 +0000
Subject: [PATCH] move a bunch more aliases from .cpp -> .td file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@117819 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/AsmParser/X86AsmParser.cpp | 29 +++++++----------------
 lib/Target/X86/X86InstrInfo.td            | 20 ++++++++++++++--
 2 files changed, 27 insertions(+), 22 deletions(-)

diff --git a/lib/Target/X86/AsmParser/X86AsmParser.cpp b/lib/Target/X86/AsmParser/X86AsmParser.cpp
index a131539814e..8a7cdc788ab 100644
--- a/lib/Target/X86/AsmParser/X86AsmParser.cpp
+++ b/lib/Target/X86/AsmParser/X86AsmParser.cpp
@@ -636,24 +636,10 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
     .Case("pop", Is64Bit ? "popq" : "popl")
     .Case("pushf", Is64Bit ? "pushfq" : "pushfl")
     .Case("popf",  Is64Bit ? "popfq"  : "popfl")
-    .Case("pushfd", "pushfl")
-    .Case("popfd",  "popfl")
     .Case("retl", Is64Bit ? "retl" : "ret")
     .Case("retq", Is64Bit ? "ret" : "retq")
-    // Floating point stack cmov aliases.
-    .Case("fcmovz", "fcmove")
-    .Case("fcmova", "fcmovnbe")
-    .Case("fcmovnae", "fcmovb")
-    .Case("fcmovna", "fcmovbe")
-    .Case("fcmovae", "fcmovnb")
-    .Case("fwait", "wait")
     .Case("movzx", "movzb")  // FIXME: Not correct.
-    .Case("fildq", "fildll")
     .Case("fcompi", "fcomip")
-    .Case("fnstcww", "fnstcw")
-    .Case("fstcww", "fstcw")
-    .Case("fnstsww", "fnstsw")
-    .Case("fstsww", "fstsw")
     .Default(Name);
 
   // FIXME: Hack to recognize cmp<comparison code>{ss,sd,ps,pd}.
@@ -964,7 +950,7 @@ ParseInstruction(StringRef Name, SMLoc NameLoc,
   }
 
   // The assembler accepts various amounts of brokenness for fnstsw.
-  if (Name == "fnstsw") {
+  if (Name == "fnstsw" || Name == "fnstsww") {
     if (Operands.size() == 2 &&
         static_cast<X86Operand*>(Operands[1])->isReg()) {
       // "fnstsw al" and "fnstsw eax" -> "fnstw"
@@ -1105,6 +1091,7 @@ MatchAndEmitInstruction(SMLoc IDLoc,
   // First, handle aliases that expand to multiple instructions.
   // FIXME: This should be replaced with a real .td file alias mechanism.
   if (Op->getToken() == "fstsw" || Op->getToken() == "fstcw" ||
+      Op->getToken() == "fstsww" || Op->getToken() == "fstcww" ||
       Op->getToken() == "finit" || Op->getToken() == "fsave" ||
       Op->getToken() == "fstenv" || Op->getToken() == "fclex") {
     MCInst Inst;
@@ -1113,12 +1100,14 @@ MatchAndEmitInstruction(SMLoc IDLoc,
 
     const char *Repl =
       StringSwitch<const char*>(Op->getToken())
-        .Case("finit", "fninit")
-        .Case("fsave", "fnsave")
-        .Case("fstcw", "fnstcw")
+        .Case("finit",  "fninit")
+        .Case("fsave",  "fnsave")
+        .Case("fstcw",  "fnstcw")
+        .Case("fstcww",  "fnstcw")
         .Case("fstenv", "fnstenv")
-        .Case("fstsw", "fnstsw")
-        .Case("fclex", "fnclex")
+        .Case("fstsw",  "fnstsw")
+        .Case("fstsww", "fnstsw")
+        .Case("fclex",  "fnclex")
         .Default(0);
     assert(Repl && "Unknown wait-prefixed instruction");
     delete Operands[0];
diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index b5168f8dc5a..6f9908635e9 100644
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -1265,17 +1265,33 @@ def : MnemonicAlias<"cwd",  "cwtd">;
 def : MnemonicAlias<"cdq", "cltd">;
 def : MnemonicAlias<"cwde", "cwtl">;
 def : MnemonicAlias<"cdqe", "cltq">;
+
+def : MnemonicAlias<"pushfd", "pushfl">;
+def : MnemonicAlias<"popfd",  "popfl">;
+
 def : MnemonicAlias<"smovb", "movsb">;
 def : MnemonicAlias<"smovw", "movsw">;
 def : MnemonicAlias<"smovl", "movsl">;
 def : MnemonicAlias<"smovq", "movsq">;
 
-def : MnemonicAlias<"fldcww", "fldcw">;
-def : MnemonicAlias<"fucompi", "fucomip">;
 def : MnemonicAlias<"ud2a", "ud2">;
 def : MnemonicAlias<"verrw", "verr">;
 
 
+// Floating point stack aliases.
+def : MnemonicAlias<"fcmovz",   "fcmove">;
+def : MnemonicAlias<"fcmova",   "fcmovnbe">;
+def : MnemonicAlias<"fcmovnae", "fcmovb">;
+def : MnemonicAlias<"fcmovna",  "fcmovbe">;
+def : MnemonicAlias<"fcmovae",  "fcmovnb">;
+def : MnemonicAlias<"fildq",    "fildll">;
+def : MnemonicAlias<"fldcww",   "fldcw">;
+def : MnemonicAlias<"fnstcww", "fnstcw">;
+def : MnemonicAlias<"fnstsww", "fnstsw">;
+def : MnemonicAlias<"fucompi",  "fucomip">;
+def : MnemonicAlias<"fwait",    "wait">;
+
+
 class CondCodeAlias<string Prefix,string Suffix, string OldCond, string NewCond>
   : MnemonicAlias<!strconcat(Prefix, OldCond, Suffix),
                   !strconcat(Prefix, NewCond, Suffix)>;
-- 
2.34.1