1 files changed, 97 insertions, 0 deletions
diff --git a/contrib/llvm/lib/MC/MCSectionWasm.cpp b/contrib/llvm/lib/MC/MCSectionWasm.cpp
new file mode 100644
index 0000000..c61f28e
--- /dev/null
+++ b/contrib/llvm/lib/MC/MCSectionWasm.cpp
@@ -0,0 +1,97 @@
+//===- lib/MC/MCSectionWasm.cpp - Wasm Code Section Representation --------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "llvm/MC/MCSectionWasm.h"
+#include "llvm/MC/MCAsmInfo.h"
+#include "llvm/MC/MCContext.h"
+#include "llvm/MC/MCExpr.h"
+#include "llvm/MC/MCSymbol.h"
+#include "llvm/Support/raw_ostream.h"
+
+using namespace llvm;
+
+MCSectionWasm::~MCSectionWasm() {} // anchor.
+
+// Decides whether a '.section' directive
+// should be printed before the section name.
+bool MCSectionWasm::ShouldOmitSectionDirective(StringRef Name,
+                                               const MCAsmInfo &MAI) const {
+  return MAI.shouldOmitSectionDirective(Name);
+}
+
+static void printName(raw_ostream &OS, StringRef Name) {
+  if (Name.find_first_not_of("0123456789_."
+                             "abcdefghijklmnopqrstuvwxyz"
+                             "ABCDEFGHIJKLMNOPQRSTUVWXYZ") == Name.npos) {
+    OS << Name;
+    return;
+  }
+  OS << '"';
+  for (const char *B = Name.begin(), *E = Name.end(); B < E; ++B) {
+    if (*B == '"') // Unquoted "
+      OS << "\\\"";
+    else if (*B != '\\') // Neither " or backslash
+      OS << *B;
+    else if (B + 1 == E) // Trailing backslash
+      OS << "\\\\";
+    else {
+      OS << B[0] << B[1]; // Quoted character
+      ++B;
+    }
+  }
+  OS << '"';
+}
+
+void MCSectionWasm::PrintSwitchToSection(const MCAsmInfo &MAI, const Triple &T,
+                                         raw_ostream &OS,
+                                         const MCExpr *Subsection) const {
+
+  if (ShouldOmitSectionDirective(SectionName, MAI)) {
+    OS << '\t' << getSectionName();
+    if (Subsection) {
+      OS << '\t';
+      Subsection->print(OS, &MAI);
+    }
+    OS << '\n';
+    return;
+  }
+
+  OS << "\t.section\t";
+  printName(OS, getSectionName());
+  OS << ",\"";
+
+  // TODO: Print section flags.
+
+  OS << '"';
+
+  OS << ',';
+
+  // If comment string is '@', e.g. as on ARM - use '%' instead
+  if (MAI.getCommentString()[0] == '@')
+    OS << '%';
+  else
+    OS << '@';
+
+  // TODO: Print section type.
+
+  if (isUnique())
+    OS << ",unique," << UniqueID;
+
+  OS << '\n';
+
+  if (Subsection) {
+    OS << "\t.subsection\t";
+    Subsection->print(OS, &MAI);
+    OS << '\n';
+  }
+}
+
+bool MCSectionWasm::UseCodeAlign() const { return false; }
+
+bool MCSectionWasm::isVirtualSection() const { return false; }