From 1d7ad3c0a6f05e65cafc13c5108276502f70263c Mon Sep 17 00:00:00 2001 From: Eric Christopher Date: Thu, 18 Apr 2019 06:17:40 +0000 Subject: [PATCH] Elaborate why we have an option on by default for enabling chr. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@358641 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Passes/PassBuilder.cpp | 2 ++ lib/Transforms/IPO/PassManagerBuilder.cpp | 2 ++ 2 files changed, 4 insertions(+) diff --git a/lib/Passes/PassBuilder.cpp b/lib/Passes/PassBuilder.cpp index 074abebb142..92d6dbc2b5a 100644 --- a/lib/Passes/PassBuilder.cpp +++ b/lib/Passes/PassBuilder.cpp @@ -209,6 +209,8 @@ static cl::opt EnableSyntheticCounts( static Regex DefaultAliasRegex( "^(default|thinlto-pre-link|thinlto|lto-pre-link|lto)<(O[0123sz])>$"); +// This option is used in simplifying testing SampleFDO optimizations for +// profile loading. static cl::opt EnableCHR("enable-chr-npm", cl::init(true), cl::Hidden, cl::desc("Enable control height reduction optimization (CHR)")); diff --git a/lib/Transforms/IPO/PassManagerBuilder.cpp b/lib/Transforms/IPO/PassManagerBuilder.cpp index cecbccb25de..745f663ebdc 100644 --- a/lib/Transforms/IPO/PassManagerBuilder.cpp +++ b/lib/Transforms/IPO/PassManagerBuilder.cpp @@ -139,6 +139,8 @@ static cl::opt EnableGVNSink( "enable-gvn-sink", cl::init(false), cl::Hidden, cl::desc("Enable the GVN sinking pass (default = off)")); +// This option is used in simplifying testing SampleFDO optimizations for +// profile loading. static cl::opt EnableCHR("enable-chr", cl::init(true), cl::Hidden, cl::desc("Enable control height reduction optimization (CHR)")); -- 2.50.1