From 6c583141bf6b7a6b5f8125c1037ecbc089813288 Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@gmail.com>
Date: Tue, 18 Dec 2012 00:31:01 +0000
Subject: Add support for passing -main-file-name all the way through to the
 assembler.

Part of PR14624

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@170390 91177308-0d34-0410-b5e6-96231b3b80d8
---
 tools/llvm-mc/llvm-mc.cpp | 6 ++++++
 1 file changed, 6 insertions(+)

(limited to 'tools/llvm-mc/llvm-mc.cpp')

diff --git a/tools/llvm-mc/llvm-mc.cpp b/tools/llvm-mc/llvm-mc.cpp
index c12a93d171..930f528668 100644
--- a/tools/llvm-mc/llvm-mc.cpp
+++ b/tools/llvm-mc/llvm-mc.cpp
@@ -161,6 +161,10 @@ static cl::opt<std::string>
 DebugCompilationDir("fdebug-compilation-dir",
                     cl::desc("Specifies the debug info's compilation dir"));
 
+static cl::opt<std::string>
+MainFileName("main-file-name",
+             cl::desc("Specifies the name we should consider the input file"));
+
 enum ActionType {
   AC_AsLex,
   AC_Assemble,
@@ -397,6 +401,8 @@ int main(int argc, char **argv) {
     Ctx.setDwarfDebugFlags(StringRef(DwarfDebugFlags));
   if (!DebugCompilationDir.empty())
     Ctx.setCompilationDir(DebugCompilationDir);
+  if (!MainFileName.empty())
+    Ctx.setMainFileName(MainFileName);
 
   // Package up features to be passed to target/subtarget
   std::string FeaturesStr;
-- 
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