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* [Analysis] Add LibFunc_ prefix to enums in TargetLibraryInfo. (NFC)David L. Jones2017-01-231-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Summary: The LibFunc::Func enum holds enumerators named for libc functions. Unfortunately, there are real situations, including libc implementations, where function names are actually macros (musl uses "#define fopen64 fopen", for example; any other transitively visible macro would have similar effects). Strictly speaking, a conforming C++ Standard Library should provide any such macros as functions instead (via <cstdio>). However, there are some "library" functions which are not part of the standard, and thus not subject to this rule (fopen64, for example). So, in order to be both portable and consistent, the enum should not use the bare function names. The old enum naming used a namespace LibFunc and an enum Func, with bare enumerators. This patch changes LibFunc to be an enum with enumerators prefixed with "LibFFunc_". (Unfortunately, a scoped enum is not sufficient to override macros.) There are additional changes required in clang. Reviewers: rsmith Subscribers: mehdi_amini, mzolotukhin, nemanjai, llvm-commits Differential Revision: https://reviews.llvm.org/D28476 llvm-svn: 292848
* [TLI] Add prototype checking for all remaining LibFuncs.Ahmed Bougacha2017-01-171-0/+481
This is another step towards unifying all LibFunc prototype checks. This work started in r267758 (D19469); add the remaining checks. Also add a unittest that checks each libfunc declared with a known-valid and known-invalid prototype. New libfuncs added in the future are required to have prototype checking in place; the known-valid test will fail otherwise. Differential Revision: https://reviews.llvm.org/D28030 llvm-svn: 292188
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