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[gold] Add debug-pass-manager option, and use it to test new-pass-manager

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Summary: Follow up from r314963.

Reviewers: pcc

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D45293

llvm-svn: 329249
This commit is contained in:
Teresa Johnson 2018-04-05 03:16:57 +00:00
parent f0bf89b366
commit ccade67ca6
2 changed files with 25 additions and 0 deletions
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19
test/tools/gold/X86/new-pm.ll Normal file
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@ -0,0 +1,19 @@
; Test plugin options new-pass-manager and debug-pass-manager
; RUN: opt -module-summary %s -o %t.o
; RUN: %gold -m elf_x86_64 -plugin %llvmshlibdir/LLVMgold%shlibext \
; RUN: --plugin-opt=thinlto \
; RUN: --plugin-opt=new-pass-manager \
; RUN: --plugin-opt=debug-pass-manager \
; RUN: --plugin-opt=cache-dir=%t.cache \
; RUN: -o %t2.o %t.o 2>&1 | FileCheck %s
; CHECK: Starting llvm::Module pass manager run
target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
target triple = "x86_64-unknown-linux-gnu"
define void @globalfunc() #0 {
entry:
ret void
}

6
tools/gold/gold-plugin.cpp
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@ -197,6 +197,8 @@ namespace options {
static std::string sample_profile;
// New pass manager
static bool new_pass_manager = false;
// Debug new pass manager
static bool debug_pass_manager = false;
static void process_plugin_option(const char *opt_)
{
@ -258,6 +260,8 @@ namespace options {
sample_profile= opt.substr(strlen("sample-profile="));
} else if (opt == "new-pass-manager") {
new_pass_manager = true;
} else if (opt == "debug-pass-manager") {
debug_pass_manager = true;
} else {
// Save this option to pass to the code generator.
// ParseCommandLineOptions() expects argv[0] to be program name. Lazily
@ -853,6 +857,8 @@ static std::unique_ptr<LTO> createLTO(IndexWriteCallback OnIndexWrite,
// Use new pass manager if set in driver
Conf.UseNewPM = options::new_pass_manager;
// Debug new pass manager if requested
Conf.DebugPassManager = options::debug_pass_manager;
return llvm::make_unique<LTO>(std::move(Conf), Backend,
options::ParallelCodeGenParallelismLevel);