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Enabling new pass manager in LTO (and thinLTO) link step. 

Adds the option 'new-pass-manager' to the gold pluggin to enable using the
new pass manager during the lto/thinlto link step.

Patch by Graham Yiu.

 Differential Revision: https://reviews.llvm.org/D38517

llvm-svn: 314963
This commit is contained in:
Sean Fertile 2017-10-05 01:48:42 +00:00
parent 04ab11a08a
commit df8d998602
1 changed files with 7 additions and 0 deletions
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7
llvm/tools/gold/gold-plugin.cpp
View File

@ -183,6 +183,8 @@ namespace options {
static std::vector<const char *> extra;
// Sample profile file path
static std::string sample_profile;
// New pass manager
static bool new_pass_manager = false;
static void process_plugin_option(const char *opt_)
{
@ -242,6 +244,8 @@ namespace options {
DisableVerify = true;
} else if (opt.startswith("sample-profile=")) {
sample_profile= opt.substr(strlen("sample-profile="));
} else if (opt == "new-pass-manager") {
new_pass_manager = true;
} else {
// Save this option to pass to the code generator.
// ParseCommandLineOptions() expects argv[0] to be program name. Lazily
@ -805,6 +809,9 @@ static std::unique_ptr<LTO> createLTO() {
if (!options::sample_profile.empty())
Conf.SampleProfile = options::sample_profile;
// Use new pass manager if set in driver
Conf.UseNewPM = options::new_pass_manager;
return llvm::make_unique<LTO>(std::move(Conf), Backend,
options::ParallelCodeGenParallelismLevel);
}