Summary:
This implements another part of -save-temps.
After this, the only remaining part is dumping the optimized bitcode. But
currently LLD's LTO doesn't have a non-intrusive place to put this.
Eventually we probably will and it will make sense to add it then.
Reviewers: ruiu, rafael
Subscribers: joker.eph, Bigcheese, llvm-commits
Differential Revision: http://reviews.llvm.org/D18009
llvm-svn: 263070
resolve(B);
}
+// This is for use when debugging LTO.
+static void saveLtoObjectFile(StringRef Buffer) {
+ std::error_code EC;
+ raw_fd_ostream OS(Config->OutputFile.str() + ".lto.o", EC,
+ sys::fs::OpenFlags::F_None);
+ check(EC);
+ OS << Buffer;
+}
+
// Codegen the module M and returns the resulting InputFile.
template <class ELFT>
std::unique_ptr<InputFile> SymbolTable<ELFT>::codegen(Module &M) {
fatal("Failed to setup codegen");
CodeGenPasses.run(M);
LtoBuffer = MemoryBuffer::getMemBuffer(OwningLTOData, "", false);
+ if (Config->SaveTemps)
+ saveLtoObjectFile(LtoBuffer->getBuffer());
return createObjectFile(*LtoBuffer);
}
; REQUIRES: x86
-; RUN: rm -f %t.so %t.so.lto.bc
+; RUN: rm -f %t.so %t.so.lto.bc %t.so.lto.o
; RUN: llvm-as %s -o %t.o
; RUN: llvm-as %p/Inputs/save-temps.ll -o %t2.o
; RUN: ld.lld -shared -m elf_x86_64 %t.o %t2.o -o %t.so -save-temps
; RUN: llvm-nm %t.so | FileCheck %s
; RUN: llvm-nm %t.so.lto.bc | FileCheck %s
+; RUN: llvm-nm %t.so.lto.o | FileCheck %s
target triple = "x86_64-unknown-linux-gnu"
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
ret void
}
-; CHECK-DAG: T bar
-; CHECK-DAG: T foo
+; CHECK: T bar
+; CHECK: T foo