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-rw-r--r--lib/Driver/Driver.cpp7
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp
index 952a716cb6e6..b69d65ea907a 100644
--- a/lib/Driver/Driver.cpp
+++ b/lib/Driver/Driver.cpp
@@ -2998,9 +2998,10 @@ void Driver::BuildActions(Compilation &C, DerivedArgList &Args,
Args.eraseArg(options::OPT__SLASH_Yc);
YcArg = nullptr;
}
- if (Args.hasArg(options::OPT__SLASH_Y_)) {
- // /Y- disables all pch handling. Rather than check for it everywhere,
- // just remove clang-cl pch-related flags here.
+ if (FinalPhase == phases::Preprocess || Args.hasArg(options::OPT__SLASH_Y_)) {
+ // If only preprocessing or /Y- is used, all pch handling is disabled.
+ // Rather than check for it everywhere, just remove clang-cl pch-related
+ // flags here.
Args.eraseArg(options::OPT__SLASH_Fp);
Args.eraseArg(options::OPT__SLASH_Yc);
Args.eraseArg(options::OPT__SLASH_Yu);