1 files changed, 7 insertions, 3 deletions
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index ad4fd6cd53..a63623a3be 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -2292,9 +2292,13 @@ void Clang::ConstructJob(Compilation &C, const JobAction &JA,
       C.getArgs().hasArg(options::OPT_S)) {
     if (Output.isFilename()) {
       CmdArgs.push_back("-coverage-file");
-      SmallString<128> absFilename(Output.getFilename());
-      llvm::sys::fs::make_absolute(absFilename);
-      CmdArgs.push_back(Args.MakeArgString(absFilename));
+      if (C.getArgs().hasArg(options::OPT_no_canonical_prefixes)) {
+        CmdArgs.push_back(Args.MakeArgString(Output.getFilename()));
+      } else {
+        SmallString<128> absFilename(Output.getFilename());
+        llvm::sys::fs::make_absolute(absFilename);
+        CmdArgs.push_back(Args.MakeArgString(absFilename));
+      }
     }
   }