Revert r305164/5/7.

cc1as does not currently access the "--" version of this flag. At the
very least this needs to be fixed and proper test cases need to be
added.

Simple reproducer:
clang -Wa,--compress-debug-sections /tmp/test.cc

Result:
error: unknown argument: '--compress-debug-sections'

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@305182 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 19 deletions

diff --git a/lib/Driver/ToolChains/Gnu.cpp b/lib/Driver/ToolChains/Gnu.cpp
index c9d15ea00d..d50f8e21f6 100644
--- a/lib/Driver/ToolChains/Gnu.cpp
+++ b/lib/Driver/ToolChains/Gnu.cpp
@@ -650,8 +650,6 @@ void tools::gnutools::Assembler::ConstructJob(Compilation &C,
                                               const InputInfoList &Inputs,
                                               const ArgList &Args,
                                               const char *LinkingOutput) const {
-  const auto &D = getToolChain().getDriver();
-
   claimNoWarnArgs(Args);
 
   ArgStringList CmdArgs;
@@ -662,23 +660,6 @@ void tools::gnutools::Assembler::ConstructJob(Compilation &C,
   std::tie(RelocationModel, PICLevel, IsPIE) =
       ParsePICArgs(getToolChain(), Args);
 
-  if (const Arg *A = Args.getLastArg(options::OPT_gz, options::OPT_gz_EQ)) {
-    if (A->getOption().getID() == options::OPT_gz) {
-      CmdArgs.push_back("-compress-debug-sections");
-    } else {
-      StringRef Value = A->getValue();
-      if (Value == "none") {
-        CmdArgs.push_back("-compress-debug-sections=none");
-      } else if (Value == "zlib" || Value == "zlib-gnu") {
-        CmdArgs.push_back(
-            Args.MakeArgString("-compress-debug-sections=" + Twine(Value)));
-      } else {
-        D.Diag(diag::err_drv_unsupported_option_argument)
-            << A->getOption().getName() << Value;
-      }
-    }
-  }
-
   switch (getToolChain().getArch()) {
   default:
     break;