[PATCH] D55717: Add --plugin-opt=emit-llvm option.
Rui Ueyama via Phabricator via llvm-commits
llvm-commits at lists.llvm.org
Fri Dec 14 14:02:03 PST 2018
This revision was automatically updated to reflect the committed changes.
Closed by commit rL349198: Add --plugin-opt=emit-llvm option. (authored by ruiu, committed by ).
Changed prior to commit:
https://reviews.llvm.org/D55717?vs=178274&id=178278#toc
Repository:
rL LLVM
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D55717/new/
https://reviews.llvm.org/D55717
Files:
lld/trunk/ELF/Config.h
lld/trunk/ELF/Driver.cpp
lld/trunk/ELF/LTO.cpp
lld/trunk/ELF/Options.td
lld/trunk/test/ELF/lto/emit-llvm.ll
Index: lld/trunk/test/ELF/lto/emit-llvm.ll
===================================================================
--- lld/trunk/test/ELF/lto/emit-llvm.ll
+++ lld/trunk/test/ELF/lto/emit-llvm.ll
@@ -0,0 +1,14 @@
+; REQUIRES: x86
+
+; RUN: opt -module-hash -module-summary %s -o %t.o
+; RUN: ld.lld --plugin-opt=emit-llvm -o %t.out.o %t.o
+; RUN: llvm-dis < %t.out.o -o - | FileCheck %s
+
+; CHECK: define internal void @main()
+
+target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
+target triple = "x86_64-unknown-linux-gnu"
+
+define void @main() {
+ ret void
+}
Index: lld/trunk/ELF/LTO.cpp
===================================================================
--- lld/trunk/ELF/LTO.cpp
+++ lld/trunk/ELF/LTO.cpp
@@ -103,6 +103,14 @@
C.DebugPassManager = Config->LTODebugPassManager;
C.DwoDir = Config->DwoDir;
+ if (Config->EmitLLVM) {
+ C.PostInternalizeModuleHook = [](size_t Task, const Module &M) {
+ if (std::unique_ptr<raw_fd_ostream> OS = openFile(Config->OutputFile))
+ WriteBitcodeToFile(M, *OS, false);
+ return false;
+ };
+ }
+
if (Config->SaveTemps)
checkError(C.addSaveTemps(Config->OutputFile.str() + ".",
/*UseInputModulePath*/ true));
Index: lld/trunk/ELF/Config.h
===================================================================
--- lld/trunk/ELF/Config.h
+++ lld/trunk/ELF/Config.h
@@ -135,6 +135,7 @@
bool Demangle = true;
bool DisableVerify;
bool EhFrameHdr;
+ bool EmitLLVM;
bool EmitRelocs;
bool EnableNewDtags;
bool ExecuteOnly;
Index: lld/trunk/ELF/Driver.cpp
===================================================================
--- lld/trunk/ELF/Driver.cpp
+++ lld/trunk/ELF/Driver.cpp
@@ -776,6 +776,7 @@
Config->DynamicLinker = getDynamicLinker(Args);
Config->EhFrameHdr =
Args.hasFlag(OPT_eh_frame_hdr, OPT_no_eh_frame_hdr, false);
+ Config->EmitLLVM = Args.hasArg(OPT_plugin_opt_emit_llvm, false);
Config->EmitRelocs = Args.hasArg(OPT_emit_relocs);
Config->CallGraphProfileSort = Args.hasFlag(
OPT_call_graph_profile_sort, OPT_no_call_graph_profile_sort, true);
@@ -1581,6 +1582,12 @@
if (Config->ThinLTOIndexOnly)
return;
+ // Likewise, --plugin-opt=emit-llvm is an option to make LTO create
+ // an output file in bitcode and exit, so that you can just get a
+ // combined bitcode file.
+ if (Config->EmitLLVM)
+ return;
+
// Apply symbol renames for -wrap.
if (!Wrapped.empty())
wrapSymbols<ELFT>(Wrapped);
Index: lld/trunk/ELF/Options.td
===================================================================
--- lld/trunk/ELF/Options.td
+++ lld/trunk/ELF/Options.td
@@ -458,6 +458,7 @@
def: F<"plugin-opt=disable-verify">, Alias<disable_verify>, HelpText<"Alias for -disable-verify">;
def plugin_opt_dwo_dir_eq: J<"plugin-opt=dwo_dir=">,
HelpText<"Directory to store .dwo files when LTO and debug fission are used">;
+def plugin_opt_emit_llvm: F<"plugin-opt=emit-llvm">;
def: J<"plugin-opt=jobs=">, Alias<thinlto_jobs>, HelpText<"Alias for -thinlto-jobs">;
def: J<"plugin-opt=lto-partitions=">, Alias<lto_partitions>, HelpText<"Alias for -lto-partitions">;
def plugin_opt_mcpu_eq: J<"plugin-opt=mcpu=">;
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