Support .code32 and .code64 in X86 assembler.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@136197 91177308-0d34-0410-b5e6-96231b3b80d8

5 files changed, 13 insertions, 7 deletions

diff --git a/lib/MC/MCAsmInfo.cpp b/lib/MC/MCAsmInfo.cpp
index 502b60b0ed..015ccd4124 100644
--- a/lib/MC/MCAsmInfo.cpp
+++ b/lib/MC/MCAsmInfo.cpp
@@ -42,6 +42,9 @@ MCAsmInfo::MCAsmInfo() {
   LinkerPrivateGlobalPrefix = "";
   InlineAsmStart = "APP";
   InlineAsmEnd = "NO_APP";
+  Code16Directive = ".code16";
+  Code32Directive = ".code32";
+  Code64Directive = ".code64";
   AssemblerDialect = 0;
   AllowQuotesInName = false;
   AllowNameToStartWithDigit = false;
diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index c103ea6b30..40eaf979fa 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -335,8 +335,9 @@ void MCAsmStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
   default: assert(0 && "Invalid flag!");
   case MCAF_SyntaxUnified:         OS << "\t.syntax unified"; break;
   case MCAF_SubsectionsViaSymbols: OS << ".subsections_via_symbols"; break;
-  case MCAF_Code16:                OS << "\t.code\t16"; break;
-  case MCAF_Code32:                OS << "\t.code\t32"; break;
+  case MCAF_Code16:                OS << '\t'<< MAI.getCode16Directive(); break;
+  case MCAF_Code32:                OS << '\t'<< MAI.getCode32Directive(); break;
+  case MCAF_Code64:                OS << '\t'<< MAI.getCode64Directive(); break;
   }
   EmitEOL();
 }
diff --git a/lib/MC/MCELFStreamer.cpp b/lib/MC/MCELFStreamer.cpp
index 84eab9d5a9..573b3e4887 100644
--- a/lib/MC/MCELFStreamer.cpp
+++ b/lib/MC/MCELFStreamer.cpp
@@ -53,8 +53,9 @@ void MCELFStreamer::EmitLabel(MCSymbol *Symbol) {
 void MCELFStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
   switch (Flag) {
   case MCAF_SyntaxUnified: return; // no-op here.
-  case MCAF_Code16: return; // no-op here.
-  case MCAF_Code32: return; // no-op here.
+  case MCAF_Code16: return; // Change parsing mode; no-op here.
+  case MCAF_Code32: return; // Change parsing mode; no-op here.
+  case MCAF_Code64: return; // Change parsing mode; no-op here.
   case MCAF_SubsectionsViaSymbols:
     getAssembler().setSubsectionsViaSymbols(true);
     return;
diff --git a/lib/MC/MCMachOStreamer.cpp b/lib/MC/MCMachOStreamer.cpp
index 9312a49e14..844793b488 100644
--- a/lib/MC/MCMachOStreamer.cpp
+++ b/lib/MC/MCMachOStreamer.cpp
@@ -143,8 +143,9 @@ void MCMachOStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {
   // Do any generic stuff we need to do.
   switch (Flag) {
   case MCAF_SyntaxUnified: return; // no-op here.
-  case MCAF_Code16: return; // no-op here.
-  case MCAF_Code32: return; // no-op here.
+  case MCAF_Code16: return; // Change parsing mode; no-op here.
+  case MCAF_Code32: return; // Change parsing mode; no-op here.
+  case MCAF_Code64: return; // Change parsing mode; no-op here.
   case MCAF_SubsectionsViaSymbols:
     getAssembler().setSubsectionsViaSymbols(true);
     return;
diff --git a/lib/MC/MCParser/AsmParser.cpp b/lib/MC/MCParser/AsmParser.cpp
index 62c7dd0b0a..eae1db0ad1 100644
--- a/lib/MC/MCParser/AsmParser.cpp
+++ b/lib/MC/MCParser/AsmParser.cpp
@@ -1146,7 +1146,7 @@ bool AsmParser::ParseStatement() {
     if (IDVal == ".include")
       return ParseDirectiveInclude();
 
-    if (IDVal == ".code16" || IDVal == ".code32" || IDVal == ".code64")
+    if (IDVal == ".code16")
       return TokError(Twine(IDVal) + " not supported yet");
 
     // Look up the handler in the handler table.