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authorEric Christopher <echristo@gmail.com>2019-04-18 06:17:40 +0000
committerEric Christopher <echristo@gmail.com>2019-04-18 06:17:40 +0000
commiteff3b6fe7f69abe7dc6b8a63fd5623cb89cdc501 (patch)
treef80eb57f902d29bcf3e7fcba8481e6d92a909145 /llvm/lib/Passes
parent7c55c8d8c347c718dbe359cda064392de5fbf3e7 (diff)
downloadbcm5719-llvm-eff3b6fe7f69abe7dc6b8a63fd5623cb89cdc501.tar.gz
bcm5719-llvm-eff3b6fe7f69abe7dc6b8a63fd5623cb89cdc501.zip
Elaborate why we have an option on by default for enabling chr.
llvm-svn: 358641
Diffstat (limited to 'llvm/lib/Passes')
-rw-r--r--llvm/lib/Passes/PassBuilder.cpp2
1 files changed, 2 insertions, 0 deletions
diff --git a/llvm/lib/Passes/PassBuilder.cpp b/llvm/lib/Passes/PassBuilder.cpp
index 074abebb142..92d6dbc2b5a 100644
--- a/llvm/lib/Passes/PassBuilder.cpp
+++ b/llvm/lib/Passes/PassBuilder.cpp
@@ -209,6 +209,8 @@ static cl::opt<bool> 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<bool>
EnableCHR("enable-chr-npm", cl::init(true), cl::Hidden,
cl::desc("Enable control height reduction optimization (CHR)"));
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