clang-cl: Better error message when trying to compile stdin (PR18640)
We should suggest using /Tc or /Tp to set the input type, instead of
erroneously suggesting -x, which isn't a clang-cl flag.
llvm-svn: 200362
diff --git a/clang/lib/Driver/Driver.cpp b/clang/lib/Driver/Driver.cpp
index ca3e50f..bd43fbe 100644
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -1030,7 +1030,8 @@
// Otherwise emit an error but still use a valid type to avoid
// spurious errors (e.g., no inputs).
if (!Args.hasArgNoClaim(options::OPT_E) && !CCCIsCPP())
- Diag(clang::diag::err_drv_unknown_stdin_type);
+ Diag(IsCLMode() ? clang::diag::err_drv_unknown_stdin_type_clang_cl
+ : clang::diag::err_drv_unknown_stdin_type);
Ty = types::TY_C;
} else {
// Otherwise lookup by extension.