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diff -ru llvm-8.0.0.src/lib/LTO/LTOBackend.cpp llvm-8.0.0.src.new/lib/LTO/LTOBackend.cpp
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--- llvm-8.0.0.src/lib/LTO/LTOBackend.cpp 2018-11-08 20:10:07.000000000 +0000
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+++ llvm-8.0.0.src.new/lib/LTO/LTOBackend.cpp 2019-05-13 18:29:18.904405949 +0000
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@@ -336,49 +336,7 @@
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void splitCodeGen(Config &C, TargetMachine *TM, AddStreamFn AddStream,
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unsigned ParallelCodeGenParallelismLevel,
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std::unique_ptr<Module> Mod) {
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- ThreadPool CodegenThreadPool(ParallelCodeGenParallelismLevel);
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- unsigned ThreadCount = 0;
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- const Target *T = &TM->getTarget();
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-
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- SplitModule(
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- std::move(Mod), ParallelCodeGenParallelismLevel,
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- [&](std::unique_ptr<Module> MPart) {
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- // We want to clone the module in a new context to multi-thread the
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- // codegen. We do it by serializing partition modules to bitcode
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- // (while still on the main thread, in order to avoid data races) and
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- // spinning up new threads which deserialize the partitions into
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- // separate contexts.
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- // FIXME: Provide a more direct way to do this in LLVM.
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- SmallString<0> BC;
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- raw_svector_ostream BCOS(BC);
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- WriteBitcodeToFile(*MPart, BCOS);
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-
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- // Enqueue the task
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- CodegenThreadPool.async(
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- [&](const SmallString<0> &BC, unsigned ThreadId) {
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- LTOLLVMContext Ctx(C);
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- Expected<std::unique_ptr<Module>> MOrErr = parseBitcodeFile(
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- MemoryBufferRef(StringRef(BC.data(), BC.size()), "ld-temp.o"),
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- Ctx);
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- if (!MOrErr)
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- report_fatal_error("Failed to read bitcode");
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- std::unique_ptr<Module> MPartInCtx = std::move(MOrErr.get());
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-
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- std::unique_ptr<TargetMachine> TM =
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- createTargetMachine(C, T, *MPartInCtx);
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-
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- codegen(C, TM.get(), AddStream, ThreadId, *MPartInCtx);
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- },
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- // Pass BC using std::move to ensure that it get moved rather than
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- // copied into the thread's context.
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- std::move(BC), ThreadCount++);
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- },
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- false);
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-
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- // Because the inner lambda (which runs in a worker thread) captures our local
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- // variables, we need to wait for the worker threads to terminate before we
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- // can leave the function scope.
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- CodegenThreadPool.wait();
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+ codegen(C, TM, AddStream, 0, *Mod);
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}
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Expected<const Target *> initAndLookupTarget(Config &C, Module &Mod) {
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diff -ru llvm-8.0.0.src/test/tools/gold/X86/emit-asm.ll llvm-8.0.0.src.new/test/tools/gold/X86/emit-asm.ll
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--- llvm-8.0.0.src/test/tools/gold/X86/emit-asm.ll 2019-01-02 23:48:00.000000000 +0000
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+++ llvm-8.0.0.src.new/test/tools/gold/X86/emit-asm.ll 2019-05-14 07:23:17.826288558 +0000
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@@ -7,8 +7,7 @@
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; RUN: %gold -plugin %llvmshlibdir/LLVMgold%shlibext \
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; RUN: -m elf_x86_64 --plugin-opt=emit-asm --plugin-opt=lto-partitions=2\
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-; RUN: -shared %t.o -o %t2.s
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-; RUN: cat %t2.s %t2.s1 > %t3.s
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+; RUN: -shared %t.o -o %t3.s
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; RUN: FileCheck --input-file %t3.s %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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diff -ru llvm-8.0.0.src/test/tools/gold/X86/parallel.ll llvm-8.0.0.src.new/test/tools/gold/X86/parallel.ll
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--- llvm-8.0.0.src/test/tools/gold/X86/parallel.ll 2017-12-14 15:59:05.000000000 +0000
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+++ llvm-8.0.0.src.new/test/tools/gold/X86/parallel.ll 2019-05-14 08:01:45.147862168 +0000
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@@ -1,10 +1,6 @@
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; RUN: llvm-as -o %t.bc %s
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; RUN: rm -f %t.0.5.precodegen.bc %t.1.5.precodegen.bc %t.o %t.o1
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; RUN: env LD_PRELOAD=%llvmshlibdir/LLVMgold%shlibext %gold -plugin %llvmshlibdir/LLVMgold%shlibext -u foo -u bar -plugin-opt lto-partitions=2 -plugin-opt save-temps -m elf_x86_64 -o %t %t.bc
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-; RUN: llvm-dis %t.0.5.precodegen.bc -o - | FileCheck --check-prefix=CHECK-BC0 %s
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-; RUN: llvm-dis %t.1.5.precodegen.bc -o - | FileCheck --check-prefix=CHECK-BC1 %s
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-; RUN: llvm-nm %t.o | FileCheck --check-prefix=CHECK0 %s
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-; RUN: llvm-nm %t.o1 | FileCheck --check-prefix=CHECK1 %s
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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