diff options
Diffstat (limited to 'llvm')
| -rw-r--r-- | llvm/include/llvm/Analysis/TargetLibraryInfo.def | 3 | ||||
| -rw-r--r-- | llvm/lib/Analysis/TargetLibraryInfo.cpp | 4 | ||||
| -rw-r--r-- | llvm/lib/Transforms/Utils/BuildLibCalls.cpp | 1 | ||||
| -rw-r--r-- | llvm/unittests/Analysis/TargetLibraryInfoTest.cpp | 1 |
4 files changed, 9 insertions, 0 deletions
diff --git a/llvm/include/llvm/Analysis/TargetLibraryInfo.def b/llvm/include/llvm/Analysis/TargetLibraryInfo.def index 637fc7ed30d..099a3c7cf2a 100644 --- a/llvm/include/llvm/Analysis/TargetLibraryInfo.def +++ b/llvm/include/llvm/Analysis/TargetLibraryInfo.def @@ -1115,6 +1115,9 @@ TLI_DEFINE_STRING_INTERNAL("vsprintf") /// int vsscanf(const char *s, const char *format, va_list arg); TLI_DEFINE_ENUM_INTERNAL(vsscanf) TLI_DEFINE_STRING_INTERNAL("vsscanf") +/// size_t wcslen (const wchar_t* wcs); +TLI_DEFINE_ENUM_INTERNAL(wcslen) +TLI_DEFINE_STRING_INTERNAL("wcslen") /// ssize_t write(int fildes, const void *buf, size_t nbyte); TLI_DEFINE_ENUM_INTERNAL(write) TLI_DEFINE_STRING_INTERNAL("write") diff --git a/llvm/lib/Analysis/TargetLibraryInfo.cpp b/llvm/lib/Analysis/TargetLibraryInfo.cpp index be734fa9142..848e1b4717b 100644 --- a/llvm/lib/Analysis/TargetLibraryInfo.cpp +++ b/llvm/lib/Analysis/TargetLibraryInfo.cpp @@ -1176,6 +1176,10 @@ bool TargetLibraryInfoImpl::isValidProtoForLibFunc(const FunctionType &FTy, FTy.getParamType(0)->isPointerTy() && FTy.getParamType(1) == SizeTTy && FTy.getParamType(2) == SizeTTy); + case LibFunc_wcslen: + return (NumParams == 1 && FTy.getParamType(0)->isPointerTy() && + FTy.getReturnType()->isIntegerTy()); + case LibFunc::NumLibFuncs: break; } diff --git a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp index 1956697ccb8..ebde1f9a17d 100644 --- a/llvm/lib/Transforms/Utils/BuildLibCalls.cpp +++ b/llvm/lib/Transforms/Utils/BuildLibCalls.cpp @@ -113,6 +113,7 @@ bool llvm::inferLibFuncAttributes(Function &F, const TargetLibraryInfo &TLI) { bool Changed = false; switch (TheLibFunc) { case LibFunc_strlen: + case LibFunc_wcslen: Changed |= setOnlyReadsMemory(F); Changed |= setDoesNotThrow(F); Changed |= setDoesNotCapture(F, 0); diff --git a/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp b/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp index 598429c968a..44c141d6a1e 100644 --- a/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp +++ b/llvm/unittests/Analysis/TargetLibraryInfoTest.cpp @@ -334,6 +334,7 @@ TEST_F(TargetLibraryInfoTest, ValidProto) { "declare i32 @vsnprintf(i8*, i64, i8*, %struct*)\n" "declare i32 @vsprintf(i8*, i8*, %struct*)\n" "declare i32 @vsscanf(i8*, i8*, %struct*)\n" + "declare i64 @wcslen(i32*)\n" // These functions were also extracted from the OS X headers, but they are // available with a special name on darwin. |
