Revert "[RISCV] Support mutilib in baremetal environment"

This reverts commit df876a026981b7a125b31bbb85ba4b1144edb0f9.
Clang::riscv32-toolchain.c Clang::riscv64-toolchain.c fails on Windows.

1 files changed, 3 insertions, 31 deletions

diff --git a/clang/lib/Driver/ToolChains/RISCVToolchain.cpp b/clang/lib/Driver/ToolChains/RISCVToolchain.cpp
index bd63873e3c6..8019940b521 100644
--- a/clang/lib/Driver/ToolChains/RISCVToolchain.cpp
+++ b/clang/lib/Driver/ToolChains/RISCVToolchain.cpp
@@ -22,39 +22,19 @@ using namespace clang::driver::tools;
 using namespace clang;
 using namespace llvm::opt;
 
-static void addMultilibsFilePaths(const Driver &D, const MultilibSet &Multilibs,
-                                  const Multilib &Multilib,
-                                  StringRef InstallPath,
-                                  ToolChain::path_list &Paths) {
-  if (const auto &PathsCallback = Multilibs.filePathsCallback())
-    for (const auto &Path : PathsCallback(Multilib))
-      addPathIfExists(D, InstallPath + Path, Paths);
-}
-
 /// RISCV Toolchain
 RISCVToolChain::RISCVToolChain(const Driver &D, const llvm::Triple &Triple,
                                const ArgList &Args)
     : Generic_ELF(D, Triple, Args) {
   GCCInstallation.init(Triple, Args);
+  getFilePaths().push_back(computeSysRoot() + "/lib");
   if (GCCInstallation.isValid()) {
-    Multilibs = GCCInstallation.getMultilibs();
-    SelectedMultilib = GCCInstallation.getMultilib();
-    path_list &Paths = getFilePaths();
-    // Add toolchain/multilib specific file paths.
-    addMultilibsFilePaths(D, Multilibs, SelectedMultilib,
-                          GCCInstallation.getInstallPath(), Paths);
     getFilePaths().push_back(GCCInstallation.getInstallPath().str());
-    ToolChain::path_list &PPaths = getProgramPaths();
-    // Multilib cross-compiler GCC installations put ld in a triple-prefixed
-    // directory off of the parent of the GCC installation.
-    PPaths.push_back(Twine(GCCInstallation.getParentLibPath() + "/../" +
-                           GCCInstallation.getTriple().str() + "/bin")
-                         .str());
-    PPaths.push_back((GCCInstallation.getParentLibPath() + "/../bin").str());
+    getProgramPaths().push_back(
+        (GCCInstallation.getParentLibPath() + "/../bin").str());
   } else {
     getProgramPaths().push_back(D.Dir);
   }
-  getFilePaths().push_back(computeSysRoot() + "/lib");
 }
 
 Tool *RISCVToolChain::buildLinker() const {
@@ -125,14 +105,6 @@ void RISCV::Linker::ConstructJob(Compilation &C, const JobAction &JA,
   if (!D.SysRoot.empty())
     CmdArgs.push_back(Args.MakeArgString("--sysroot=" + D.SysRoot));
 
-  bool IsRV64 = ToolChain.getArch() == llvm::Triple::riscv64;
-  CmdArgs.push_back("-m");
-  if (IsRV64) {
-    CmdArgs.push_back("elf64lriscv");
-  } else {
-    CmdArgs.push_back("elf32lriscv");
-  }
-
   std::string Linker = getToolChain().GetProgramPath(getShortName());
 
   bool WantCRTs =