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tblgen: Move dependency file output to a separate function.

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This keeps it out of the main flow of TableGenMain.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@165542 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Sean Silva 2012-10-09 20:29:03 +00:00
parent 6b73e8a280
commit 88dbc5e6c3
1 changed files with 31 additions and 21 deletions
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52
lib/TableGen/Main.cpp
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@ -47,6 +47,34 @@ namespace {
cl::value_desc("directory"), cl::Prefix);
}
/// \brief Create a dependency file for `-d` option.
///
/// This functionality is really only for the benefit of the build system.
/// It is similar to GCC's `-M*` family of options.
static int handleDependencies(const TGParser &Parser, const char *argv0) {
if (OutputFilename == "-") {
errs() << argv0 << ": the option -d must be used together with -o\n";
return 1;
}
std::string Error;
tool_output_file DepOut(DependFilename.c_str(), Error);
if (!Error.empty()) {
errs() << argv0 << ": error opening " << DependFilename
<< ":" << Error << "\n";
return 1;
}
DepOut.os() << OutputFilename << ":";
const std::vector<std::string> &Dependencies = Parser.getDependencies();
for (std::vector<std::string>::const_iterator I = Dependencies.begin(),
E = Dependencies.end();
I != E; ++I) {
DepOut.os() << " " << (*I);
}
DepOut.os() << "\n";
DepOut.keep();
return 0;
}
namespace llvm {
int TableGenMain(char *argv0, TableGenMainFn *MainFn) {
@ -82,27 +110,9 @@ int TableGenMain(char *argv0, TableGenMainFn *MainFn) {
<< ":" << Error << "\n";
return 1;
}
if (!DependFilename.empty()) {
if (OutputFilename == "-") {
errs() << argv0 << ": the option -d must be used together with -o\n";
return 1;
}
tool_output_file DepOut(DependFilename.c_str(), Error);
if (!Error.empty()) {
errs() << argv0 << ": error opening " << DependFilename
<< ":" << Error << "\n";
return 1;
}
DepOut.os() << OutputFilename << ":";
const std::vector<std::string> &Dependencies = Parser.getDependencies();
for (std::vector<std::string>::const_iterator I = Dependencies.begin(),
E = Dependencies.end();
I != E; ++I) {
DepOut.os() << " " << (*I);
}
DepOut.os() << "\n";
DepOut.keep();
}
if (!DependFilename.empty())
if (int Ret = handleDependencies(Parser, argv0))
return Ret;
if (MainFn(Out.os(), Records))
return 1;