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| author | Hans Wennborg <hans@hanshq.net> | 2014-09-29 23:06:57 +0000 |
|---|---|---|
| committer | Hans Wennborg <hans@hanshq.net> | 2014-09-29 23:06:57 +0000 |
| commit | d9dd4d29b7dee9035f1379af467f3366c4ca0bd1 (patch) | |
| tree | 8baae709e9767945dee708c6a119f06f26c9de18 /clang/lib/Sema/SemaChecking.cpp | |
| parent | b166d45730e1d32bca8c03482034222c42314693 (diff) | |
| download | bcm5719-llvm-d9dd4d29b7dee9035f1379af467f3366c4ca0bd1.tar.gz bcm5719-llvm-d9dd4d29b7dee9035f1379af467f3366c4ca0bd1.zip | |
Don't trap when passing non-POD arguments to variadic functions in MS-compatibility mode
Clang warns (treated as error by default, but still ignored in system headers)
when passing non-POD arguments to variadic functions, and generates a trap
instruction to crash the program if that code is ever run.
Unfortunately, MSVC happily generates code for such calls without a warning,
and there is code in system headers that use it.
This makes Clang not insert the trap instruction when in -fms-compatibility
mode, while still generating the warning/error message.
Differential Revision: http://reviews.llvm.org/D5492
llvm-svn: 218640
Diffstat (limited to 'clang/lib/Sema/SemaChecking.cpp')
| -rw-r--r-- | clang/lib/Sema/SemaChecking.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/clang/lib/Sema/SemaChecking.cpp b/clang/lib/Sema/SemaChecking.cpp index 2cf25feae2e..b4f90d3b4f6 100644 --- a/clang/lib/Sema/SemaChecking.cpp +++ b/clang/lib/Sema/SemaChecking.cpp @@ -3569,6 +3569,7 @@ CheckPrintfHandler::checkFormatExpr(const analyze_printf::PrintfSpecifier &FS, break; case Sema::VAK_Undefined: + case Sema::VAK_MSVCUndefined: EmitFormatDiagnostic( S.PDiag(diag::warn_non_pod_vararg_with_format_string) << S.getLangOpts().CPlusPlus11 |
