commit 377aa20e6e4a94cecc363a5d8b583cbbdce7a689
author Michael J. Spencer <bigcheesegs@gmail.com> Sat Aug 21 05:58:13 2010 +0000
committer Michael J. Spencer <bigcheesegs@gmail.com> Sat Aug 21 05:58:13 2010 +0000
tree 64fd21171e984dfd4d9bfe57b6ca80bc23a9cfa3
parent fed68df76c42a76441b5ba535394ce2cf60aa5b9

MC: Add partial x86-64 support to COFF.

llvm-svn: 111728

llvm/lib/Target/X86/X86AsmBackend.cpp

diff --git a/llvm/lib/Target/X86/X86AsmBackend.cpp b/llvm/lib/Target/X86/X86AsmBackend.cpp
index 6455a18..69dc967f 100644
--- a/llvm/lib/Target/X86/X86AsmBackend.cpp
+++ b/llvm/lib/Target/X86/X86AsmBackend.cpp
@@ -223,14 +223,16 @@
 };
 
 class WindowsX86AsmBackend : public X86AsmBackend {
+  bool Is64Bit;
 public:
-  WindowsX86AsmBackend(const Target &T)
-    : X86AsmBackend(T) {
+  WindowsX86AsmBackend(const Target &T, bool is64Bit)
+    : X86AsmBackend(T)
+    , Is64Bit(is64Bit) {
     HasScatteredSymbols = true;
   }
 
   MCObjectWriter *createObjectWriter(raw_ostream &OS) const {
-    return createWinCOFFObjectWriter (OS);
+    return createWinCOFFObjectWriter(OS, Is64Bit);
   }
 
   bool isVirtualSection(const MCSection &Section) const {
@@ -320,7 +322,7 @@
   case Triple::MinGW32:
   case Triple::Cygwin:
   case Triple::Win32:
-    return new WindowsX86AsmBackend(T);
+    return new WindowsX86AsmBackend(T, false);
   default:
     return new ELFX86_32AsmBackend(T);
   }
@@ -331,6 +333,10 @@
   switch (Triple(TT).getOS()) {
   case Triple::Darwin:
     return new DarwinX86_64AsmBackend(T);
+  case Triple::MinGW64:
+  case Triple::Cygwin:
+  case Triple::Win32:
+    return new WindowsX86AsmBackend(T, true);
   default:
     return new ELFX86_64AsmBackend(T);
   }

llvm/lib/Target/X86/X86MCAsmInfo.cpp

diff --git a/llvm/lib/Target/X86/X86MCAsmInfo.cpp b/llvm/lib/Target/X86/X86MCAsmInfo.cpp
index 2b8720b..36badb4 100644
--- a/llvm/lib/Target/X86/X86MCAsmInfo.cpp
+++ b/llvm/lib/Target/X86/X86MCAsmInfo.cpp
@@ -103,6 +103,9 @@
 }
 
 X86MCAsmInfoCOFF::X86MCAsmInfoCOFF(const Triple &Triple) {
+  if (Triple.getArch() == Triple::x86_64)
+    GlobalPrefix = "";
+
   AsmTransCBE = x86_asm_table;
   AssemblerDialect = AsmWriterFlavor;