[SystemZ] Use zeroing form of RISBG for some AND sequences
[oota-llvm.git] / tools / gold / gold-plugin.cpp
index 9c17da6a4cb6e4a83e0f0c3cc633523b9c114aa5..27fe3acd0cf17709b02a2f1142bf8b97f13a6fa4 100644 (file)
 
 #include "llvm/Config/config.h" // plugin-api.h requires HAVE_STDINT_H
 #include "plugin-api.h"
-
 #include "llvm-c/lto.h"
-
 #include "llvm/ADT/OwningPtr.h"
-#include "llvm/Support/system_error.h"
-#include "llvm/Support/MemoryBuffer.h"
-#include "llvm/Support/ToolOutputFile.h"
 #include "llvm/Support/Errno.h"
+#include "llvm/Support/FileSystem.h"
+#include "llvm/Support/MemoryBuffer.h"
 #include "llvm/Support/Path.h"
 #include "llvm/Support/Program.h"
-
+#include "llvm/Support/ToolOutputFile.h"
+#include "llvm/Support/system_error.h"
 #include <cerrno>
 #include <cstdlib>
 #include <cstring>
@@ -67,7 +65,7 @@ namespace {
   lto_codegen_model output_type = LTO_CODEGEN_PIC_MODEL_STATIC;
   std::string output_name = "";
   std::list<claimed_file> Modules;
-  std::vector<sys::Path> Cleanup;
+  std::vector<std::string> Cleanup;
   lto_code_gen_t code_gen = NULL;
 }
 
@@ -378,9 +376,6 @@ static ld_plugin_status all_symbols_read_hook(void) {
     }
   }
 
-  // If we don't preserve any symbols, libLTO will assume that all symbols are
-  // needed. Keep all symbols unless we're producing a final executable.
-  bool anySymbolsPreserved = false;
   for (std::list<claimed_file>::iterator I = Modules.begin(),
          E = Modules.end(); I != E; ++I) {
     if (I->syms.empty())
@@ -389,7 +384,6 @@ static ld_plugin_status all_symbols_read_hook(void) {
     for (unsigned i = 0, e = I->syms.size(); i != e; i++) {
       if (I->syms[i].resolution == LDPR_PREVAILING_DEF) {
         lto_codegen_add_must_preserve_symbol(code_gen, I->syms[i].name);
-        anySymbolsPreserved = true;
 
         if (options::generate_api_file)
           api_file << I->syms[i].name << "\n";
@@ -400,12 +394,6 @@ static ld_plugin_status all_symbols_read_hook(void) {
   if (options::generate_api_file)
     api_file.close();
 
-  if (!anySymbolsPreserved) {
-    // All of the IL is unnecessary!
-    lto_codegen_dispose(code_gen);
-    return LDPS_OK;
-  }
-
   lto_codegen_set_pic_model(code_gen, output_type);
   lto_codegen_set_debug_model(code_gen, LTO_DEBUG_MODEL_DWARF);
   if (!options::mcpu.empty())
@@ -460,18 +448,18 @@ static ld_plugin_status all_symbols_read_hook(void) {
   }
 
   if (options::obj_path.empty())
-    Cleanup.push_back(sys::Path(objPath));
+    Cleanup.push_back(objPath);
 
   return LDPS_OK;
 }
 
 static ld_plugin_status cleanup_hook(void) {
-  std::string ErrMsg;
-
-  for (int i = 0, e = Cleanup.size(); i != e; ++i)
-    if (Cleanup[i].eraseFromDisk(false, &ErrMsg))
+  for (int i = 0, e = Cleanup.size(); i != e; ++i) {
+    error_code EC = sys::fs::remove(Cleanup[i]);
+    if (EC)
       (*message)(LDPL_ERROR, "Failed to delete '%s': %s", Cleanup[i].c_str(),
-                 ErrMsg.c_str());
+                 EC.message().c_str());
+  }
 
   return LDPS_OK;
 }