diff options
Diffstat (limited to 'llvm/lib/Analysis/ConstantFolding.cpp')
| -rw-r--r-- | llvm/lib/Analysis/ConstantFolding.cpp | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/llvm/lib/Analysis/ConstantFolding.cpp b/llvm/lib/Analysis/ConstantFolding.cpp index a6ef271..102762d 100644 --- a/llvm/lib/Analysis/ConstantFolding.cpp +++ b/llvm/lib/Analysis/ConstantFolding.cpp @@ -1677,9 +1677,9 @@ bool llvm::canConstantFoldCallTo(const CallBase *Call, const Function *F) { Name == "floor" || Name == "floorf" || Name == "fmod" || Name == "fmodf"; case 'l': - return Name == "log" || Name == "logf" || Name == "log2" || - Name == "log2f" || Name == "log10" || Name == "log10f" || - Name == "logl"; + return Name == "log" || Name == "logf" || Name == "logl" || + Name == "log2" || Name == "log2f" || Name == "log10" || + Name == "log10f" || Name == "logb" || Name == "logbf"; case 'n': return Name == "nearbyint" || Name == "nearbyintf"; case 'p': @@ -2389,6 +2389,11 @@ static Constant *ConstantFoldScalarCall1(StringRef Name, // TODO: What about hosts that lack a C99 library? return ConstantFoldFP(log10, APF, Ty); break; + case LibFunc_logb: + case LibFunc_logbf: + if (!APF.isZero() && TLI->has(Func)) + return ConstantFoldFP(logb, APF, Ty); + break; case LibFunc_logl: return nullptr; case LibFunc_nearbyint: |