commit 56bcaa6dc1fab98849b212e4ecf553f709426754
author Yi Kong <yikong@google.com> Fri Jan 31 14:51:14 2020 +0000
committer Gerrit Code Review <noreply-gerritcodereview@google.com> Fri Jan 31 14:51:14 2020 +0000
tree 3289f2f6ef49e64f5652d7e39b45ea3927b6baf3
parent 67edce7adbe4bbaeced39bc10df6157ede6b3826
parent b6ec66a173d26be9bbd23d41133733539bce0f91

Merge "Add -fprofile-sample-accurate flag for sampling PGO"

cc/pgo.go

diff --git a/cc/pgo.go b/cc/pgo.go
index 6c39d83..8eb3400 100644
--- a/cc/pgo.go
+++ b/cc/pgo.go
@@ -43,7 +43,7 @@
 const profileInstrumentFlag = "-fprofile-generate=/data/local/tmp"
 const profileSamplingFlag = "-gmlt -fdebug-info-for-profiling"
 const profileUseInstrumentFormat = "-fprofile-use=%s"
-const profileUseSamplingFormat = "-fprofile-sample-use=%s"
+const profileUseSamplingFormat = "-fprofile-sample-accurate -fprofile-sample-use=%s"
 
 func getPgoProfileProjects(config android.DeviceConfig) []string {
 	return config.OnceStringSlice(pgoProfileProjectsConfigKey, func() []string {