1 files changed, 138 insertions, 0 deletions
diff --git a/contrib/llvm/lib/Target/X86/MCTargetDesc/X86MCAsmInfo.cpp b/contrib/llvm/lib/Target/X86/MCTargetDesc/X86MCAsmInfo.cpp
new file mode 100644
index 0000000..2703100
--- /dev/null
+++ b/contrib/llvm/lib/Target/X86/MCTargetDesc/X86MCAsmInfo.cpp
@@ -0,0 +1,138 @@
+//===-- X86MCAsmInfo.cpp - X86 asm properties -----------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+//
+// This file contains the declarations of the X86MCAsmInfo properties.
+//
+//===----------------------------------------------------------------------===//
+
+#include "X86MCAsmInfo.h"
+#include "llvm/ADT/Triple.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCSectionELF.h"
+#include "llvm/MC/MCStreamer.h"
+#include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ELF.h"
+using namespace llvm;
+
+enum AsmWriterFlavorTy {
+  // Note: This numbering has to match the GCC assembler dialects for inline
+  // asm alternatives to work right.
+  ATT = 0, Intel = 1
+};
+
+static cl::opt<AsmWriterFlavorTy>
+AsmWriterFlavor("x86-asm-syntax", cl::init(ATT),
+  cl::desc("Choose style of code to emit from X86 backend:"),
+  cl::values(clEnumValN(ATT,   "att",   "Emit AT&T-style assembly"),
+             clEnumValN(Intel, "intel", "Emit Intel-style assembly"),
+             clEnumValEnd));
+
+
+static const char *const x86_asm_table[] = {
+  "{si}", "S",
+  "{di}", "D",
+  "{ax}", "a",
+  "{cx}", "c",
+  "{memory}", "memory",
+  "{flags}", "",
+  "{dirflag}", "",
+  "{fpsr}", "",
+  "{fpcr}", "",
+  "{cc}", "cc",
+  0,0};
+
+X86MCAsmInfoDarwin::X86MCAsmInfoDarwin(const Triple &T) {
+  bool is64Bit = T.getArch() == Triple::x86_64;
+  if (is64Bit)
+    PointerSize = 8;
+
+  AsmTransCBE = x86_asm_table;
+  AssemblerDialect = AsmWriterFlavor;
+
+  TextAlignFillValue = 0x90;
+
+  if (!is64Bit)
+    Data64bitsDirective = 0;       // we can't emit a 64-bit unit
+
+  // Use ## as a comment string so that .s files generated by llvm can go
+  // through the GCC preprocessor without causing an error.  This is needed
+  // because "clang foo.s" runs the C preprocessor, which is usually reserved
+  // for .S files on other systems.  Perhaps this is because the file system
+  // wasn't always case preserving or something.
+  CommentString = "##";
+  PCSymbol = ".";
+
+  SupportsDebugInformation = true;
+  DwarfUsesInlineInfoSection = true;
+
+  // Exceptions handling
+  ExceptionsType = ExceptionHandling::DwarfCFI;
+}
+
+X86_64MCAsmInfoDarwin::X86_64MCAsmInfoDarwin(const Triple &Triple)
+  : X86MCAsmInfoDarwin(Triple) {
+}
+
+X86ELFMCAsmInfo::X86ELFMCAsmInfo(const Triple &T) {
+  if (T.getArch() == Triple::x86_64)
+    PointerSize = 8;
+
+  AsmTransCBE = x86_asm_table;
+  AssemblerDialect = AsmWriterFlavor;
+
+  TextAlignFillValue = 0x90;
+
+  PrivateGlobalPrefix = ".L";
+  WeakRefDirective = "\t.weak\t";
+  PCSymbol = ".";
+
+  // Set up DWARF directives
+  HasLEB128 = true;  // Target asm supports leb128 directives (little-endian)
+
+  // Debug Information
+  SupportsDebugInformation = true;
+
+  // Exceptions handling
+  ExceptionsType = ExceptionHandling::DwarfCFI;
+
+  // OpenBSD has buggy support for .quad in 32-bit mode, just split into two
+  // .words.
+  if (T.getOS() == Triple::OpenBSD && T.getArch() == Triple::x86)
+    Data64bitsDirective = 0;
+}
+
+const MCExpr *
+X86_64MCAsmInfoDarwin::getExprForPersonalitySymbol(const MCSymbol *Sym,
+                                                   unsigned Encoding,
+                                                   MCStreamer &Streamer) const {
+  MCContext &Context = Streamer.getContext();
+  const MCExpr *Res =
+    MCSymbolRefExpr::Create(Sym, MCSymbolRefExpr::VK_GOTPCREL, Context);
+  const MCExpr *Four = MCConstantExpr::Create(4, Context);
+  return MCBinaryExpr::CreateAdd(Res, Four, Context);
+}
+
+const MCSection *X86ELFMCAsmInfo::
+getNonexecutableStackSection(MCContext &Ctx) const {
+  return Ctx.getELFSection(".note.GNU-stack", ELF::SHT_PROGBITS,
+                           0, SectionKind::getMetadata());
+}
+
+X86MCAsmInfoCOFF::X86MCAsmInfoCOFF(const Triple &Triple) {
+  if (Triple.getArch() == Triple::x86_64) {
+    GlobalPrefix = "";
+    PrivateGlobalPrefix = ".L";
+  }
+
+  AsmTransCBE = x86_asm_table;
+  AssemblerDialect = AsmWriterFlavor;
+
+  TextAlignFillValue = 0x90;
+}