From 95a5a7d57015c21b355a351c2efc6866f89b2f61 Mon Sep 17 00:00:00 2001
From: Sean Callanan <scallanan@apple.com>
Date: Sat, 13 Feb 2010 01:48:34 +0000
Subject: [PATCH] Fixed encodings for invlpg, invept, and invvpid.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@96065 91177308-0d34-0410-b5e6-96231b3b80d8
---
 lib/Target/X86/X86InstrInfo.td          |  6 ++--
 utils/TableGen/X86RecognizableInstr.cpp | 39 +++++--------------------
 2 files changed, 10 insertions(+), 35 deletions(-)

diff --git a/lib/Target/X86/X86InstrInfo.td b/lib/Target/X86/X86InstrInfo.td
index 47ddf024214..62dfdc299ca 100644
--- a/lib/Target/X86/X86InstrInfo.td
+++ b/lib/Target/X86/X86InstrInfo.td
@@ -4077,7 +4077,7 @@ def LSL32rm : I<0x03, MRMSrcMem, (outs GR32:$dst), (ins i32mem:$src),
 def LSL32rr : I<0x03, MRMSrcReg, (outs GR32:$dst), (ins GR32:$src),
                 "lsl{l}\t{$src, $dst|$dst, $src}", []>, TB;
                 
-def INVLPG : I<0x01, RawFrm, (outs), (ins), "invlpg", []>, TB;
+def INVLPG : I<0x01, MRM7m, (outs), (ins i8mem:$addr), "invlpg\t$addr", []>, TB;
 
 def STRr : I<0x00, MRM1r, (outs GR16:$dst), (ins),
              "str{w}\t{$dst}", []>, TB;
@@ -4239,9 +4239,9 @@ def WBINVD : I<0x09, RawFrm, (outs), (ins), "wbinvd", []>, TB;
 // VMX instructions
 
 // 66 0F 38 80
-def INVEPT : I<0x38, RawFrm, (outs), (ins), "invept", []>, OpSize, TB;
+def INVEPT : I<0x80, RawFrm, (outs), (ins), "invept", []>, OpSize, T8;
 // 66 0F 38 81
-def INVVPID : I<0x38, RawFrm, (outs), (ins), "invvpid", []>, OpSize, TB;
+def INVVPID : I<0x81, RawFrm, (outs), (ins), "invvpid", []>, OpSize, T8;
 // 0F 01 C1
 def VMCALL : I<0x01, MRM_C1, (outs), (ins), "vmcall", []>, TB;
 def VMCLEARm : I<0xC7, MRM6m, (outs), (ins i64mem:$vmcs),
diff --git a/utils/TableGen/X86RecognizableInstr.cpp b/utils/TableGen/X86RecognizableInstr.cpp
index 5c2bf772b70..0a85eb8380e 100644
--- a/utils/TableGen/X86RecognizableInstr.cpp
+++ b/utils/TableGen/X86RecognizableInstr.cpp
@@ -583,30 +583,6 @@ void RecognizableInstr::emitDecodePath(DisassemblerTables &tables) const {
   case X86Local::MRM_##from:              \
     filter = new ExactFilter(0x##from);   \
     break;
-  
-#define EXACTCASE(class, name, lastbyte)          \
-  if (Name == name) {                             \
-    tables.setTableFields(class,                  \
-                          insnContext(),          \
-                          Opcode,                 \
-                          ExactFilter(lastbyte),  \
-                          UID);                   \
-    Spec->modifierBase = Opcode;                  \
-    return;                                       \
-  }
-
-  EXACTCASE(TWOBYTE, "INVEPT",   0x80)
-  EXACTCASE(TWOBYTE, "INVVPID",  0x81)
-
-  if (Name == "INVLPG") {
-    tables.setTableFields(TWOBYTE,
-                          insnContext(),
-                          Opcode,
-                          ExtendedFilter(false, 7),
-                          UID);
-    Spec->modifierBase = Opcode;
-    return;
-  }
 
   OpcodeType    opcodeType  = (OpcodeType)-1;
   
@@ -621,6 +597,12 @@ void RecognizableInstr::emitDecodePath(DisassemblerTables &tables) const {
     opcodeType = TWOBYTE;
 
     switch (Opcode) {
+    default:
+      if (needsModRMForDecode(Form))
+        filter = new ModFilter(isRegFormat(Form));
+      else
+        filter = new DumbFilter();
+      break;
 #define EXTENSION_TABLE(n) case 0x##n:
     TWO_BYTE_EXTENSION_TABLES
 #undef EXTENSION_TABLE
@@ -650,14 +632,7 @@ void RecognizableInstr::emitDecodePath(DisassemblerTables &tables) const {
       MRM_MAPPING
       } // switch (Form)
       break;
-    default:
-      if (needsModRMForDecode(Form))
-        filter = new ModFilter(isRegFormat(Form));
-      else
-        filter = new DumbFilter();
-        
-      break;
-    } // switch (opcode)
+    } // switch (Opcode)
     opcodeToSet = Opcode;
     break;
   case X86Local::T8:
-- 
2.34.1