diff options
| author | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-08-06 04:09:06 +0000 |
|---|---|---|
| committer | Richard Smith <richard-llvm@metafoo.co.uk> | 2012-08-06 04:09:06 +0000 |
| commit | 04c3a25bd45ad8a6ad715783aee03df7284c5591 (patch) | |
| tree | 7156f3c08f6f0c4f949ff549f9e9f203c1c1e6ff /lib/Driver/Driver.cpp | |
| parent | a4b39658673954fb9f75673594b50028685fc665 (diff) | |
PR13529: Don't crash if the driver sees an unused input file when running as
'clang-cpp'.
For now, the test uses "REQUIRES: shell" to determine if the host system
supports "ln -s", which it uses to create a 'clang-cpp' symlink. This is a bit
hacky and should likely be directly supported by lit.cfg.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@161317 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Driver/Driver.cpp')
| -rw-r--r-- | lib/Driver/Driver.cpp | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/lib/Driver/Driver.cpp b/lib/Driver/Driver.cpp index 671c0acaab..1c47d5c9da 100644 --- a/lib/Driver/Driver.cpp +++ b/lib/Driver/Driver.cpp @@ -1131,18 +1131,27 @@ void Driver::BuildActions(const ToolChain &TC, const DerivedArgList &Args, if (Args.hasArg(options::OPT_Qunused_arguments)) continue; + // Special case when final phase determined by binary name, rather than + // by a command-line argument with a corresponding Arg. + if (CCCIsCPP) + Diag(clang::diag::warn_drv_input_file_unused_by_cpp) + << InputArg->getAsString(Args) + << getPhaseName(InitialPhase); // Special case '-E' warning on a previously preprocessed file to make // more sense. - if (InitialPhase == phases::Compile && FinalPhase == phases::Preprocess && - getPreprocessedType(InputType) == types::TY_INVALID) + else if (InitialPhase == phases::Compile && + FinalPhase == phases::Preprocess && + getPreprocessedType(InputType) == types::TY_INVALID) Diag(clang::diag::warn_drv_preprocessed_input_file_unused) << InputArg->getAsString(Args) - << FinalPhaseArg->getOption().getName(); + << !!FinalPhaseArg + << FinalPhaseArg ? FinalPhaseArg->getOption().getName() : ""; else Diag(clang::diag::warn_drv_input_file_unused) << InputArg->getAsString(Args) << getPhaseName(InitialPhase) - << FinalPhaseArg->getOption().getName(); + << !!FinalPhaseArg + << FinalPhaseArg ? FinalPhaseArg->getOption().getName() : ""; continue; } |