scan-build: Add a --keep-empty option for better testing.
SATestBuild expects to compare output directories for each invocation of
scan-build that it runs, but scan-build clears out empty directories by
default. We were coincidentally not getting that behavior until r173294.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@173383 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/utils/analyzer/SATestBuild.py b/utils/analyzer/SATestBuild.py
index 36199cb..067be16 100755
--- a/utils/analyzer/SATestBuild.py
+++ b/utils/analyzer/SATestBuild.py
@@ -206,6 +206,7 @@
SBOptions = "--use-analyzer " + Clang + " "
SBOptions += "-plist-html -o " + SBOutputDir + " "
SBOptions += "-enable-checker " + Checkers + " "
+ SBOptions += "--keep-empty "
try:
SBCommandFile = open(BuildScriptPath, "r")
SBPrefix = "scan-build " + SBOptions + " "