Merge "Add "-no-warn-sample-unuse=true" to work around AutoFDO issue" am: d810312751 am: b13d81ba3b

Change-Id: I179a96a122f174e99e77a1eaff0959d6abe5d07e
2020-01-17 22:18:06 +00:00
parent 017bf3ec3c b13d81ba3b
commit 1c78fcfd38
1 changed files with 4 additions and 0 deletions
--- a/cc/pgo.go
+++ b/cc/pgo.go
@@ -177,6 +177,10 @@ func (props *PgoProperties) addProfileUseFlags(ctx ModuleContext, flags Flags) F
 		// if profileFile gets updated
 		flags.CFlagsDeps = append(flags.CFlagsDeps, profileFilePath)
 		flags.LdFlagsDeps = append(flags.LdFlagsDeps, profileFilePath)
+
+		if props.isSampling() {
+			flags.Local.LdFlags = append(flags.Local.LdFlags, "-Wl,-mllvm,-no-warn-sample-unused=true")
+		}
 	}
 	return flags
 }