Driver: Support -Oz as an alias for -Os.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@119003 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Driver/Tools.cpp b/lib/Driver/Tools.cpp
index 954ec8d..223576e 100644
--- a/lib/Driver/Tools.cpp
+++ b/lib/Driver/Tools.cpp
@@ -1139,6 +1139,10 @@
else if (A->getOption().matches(options::OPT_O) &&
A->getValue(Args)[0] == '\0')
CmdArgs.push_back("-O2");
+ else if (A->getOption().matches(options::OPT_O) &&
+ A->getValue(Args)[0] == 'z' &&
+ A->getValue(Args)[1] == '\0')
+ CmdArgs.push_back("-Os");
else
A->render(Args, CmdArgs);
}