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gold-plugin: save the .o when given -save-temps.

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The plugin now save the bitcode before and after optimizations and the
.o that is passed to the linker.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239726 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Rafael Espindola 2015-06-15 13:36:27 +00:00
parent ad0b09d10e
commit 99e760ad9e
2 changed files with 11 additions and 3 deletions
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3
test/tools/gold/emit-llvm.ll
View File

@ -12,6 +12,7 @@
; RUN: -shared %t.o -o %t3.o
; RUN: llvm-dis %t3.o.bc -o - | FileCheck %s
; RUN: llvm-dis %t3.o.opt.bc -o - | FileCheck --check-prefix=OPT %s
; RUN: llvm-nm %t3.o.o | FileCheck --check-prefix=NM %s
; RUN: rm -f %t4.o
; RUN: %gold -plugin %llvmshlibdir/LLVMgold.so \
@ -19,6 +20,8 @@
; RUN: -shared %t.o -o %t4.o
; RUN: not test -a %t4.o
; NM: T f3
target triple = "x86_64-unknown-linux-gnu"
@g7 = extern_weak global i32

11
tools/gold/gold-plugin.cpp
View File

@ -787,15 +787,20 @@ static void codegen(Module &M) {
legacy::PassManager CodeGenPasses;
SmallString<128> Filename;
if (!options::obj_path.empty())
Filename = options::obj_path;
else if (options::TheOutputType == options::OT_SAVE_TEMPS)
Filename = output_name + ".o";
int FD;
if (options::obj_path.empty()) {
bool TempOutFile = Filename.empty();
if (TempOutFile) {
std::error_code EC =
sys::fs::createTemporaryFile("lto-llvm", "o", FD, Filename);
if (EC)
message(LDPL_FATAL, "Could not create temporary file: %s",
EC.message().c_str());
} else {
Filename = options::obj_path;
std::error_code EC =
sys::fs::openFileForWrite(Filename.c_str(), FD, sys::fs::F_None);
if (EC)
@ -816,7 +821,7 @@ static void codegen(Module &M) {
"Unable to add .o file to the link. File left behind in: %s",
Filename.c_str());
if (options::obj_path.empty())
if (TempOutFile)
Cleanup.push_back(Filename.c_str());
}