================ @@ -16086,6 +16086,41 @@ Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID, switch (BuiltinID) { default: return nullptr; + case Builtin::BI__builtin_cpu_is: { + const Expr *CPUExpr = E->getArg(0)->IgnoreParenCasts(); + StringRef CPUStr = cast<clang::StringLiteral>(CPUExpr)->getString(); + unsigned NumCPUID = StringSwitch<unsigned>(CPUStr) +#define PPC_LNX_CPU(Name, NumericID) .Case(Name, NumericID) +#include "llvm/TargetParser/PPCTargetParser.def" + .Default(-1U); + Value *Op0 = llvm::ConstantInt::get(Int32Ty, PPC_FAWORD_CPUID); + llvm::Function *F = CGM.getIntrinsic(Intrinsic::ppc_fixed_addr_ld); + Value *TheCall = Builder.CreateCall(F, {Op0}, "cpu_is"); + return Builder.CreateICmpEQ(TheCall, + llvm::ConstantInt::get(Int32Ty, NumCPUID)); + } + case Builtin::BI__builtin_cpu_supports: { + unsigned FeatureWord; + unsigned BitMask; + const Expr *CPUExpr = E->getArg(0)->IgnoreParenCasts(); + StringRef CPUStr = cast<clang::StringLiteral>(CPUExpr)->getString(); + std::tie(FeatureWord, BitMask) = + StringSwitch<std::pair<unsigned, unsigned>>(CPUStr) +#define PPC_LNX_FEATURE(Name, Description, EnumName, Bitmask, FA_WORD) \ + .Case(Name, {FA_WORD, Bitmask}) +#include "llvm/TargetParser/PPCTargetParser.def" + .Default({0, 0}); ---------------- diggerlin wrote:
we do not want a default here, without a default it will hit an assert here if fell off the end of the string-switch. in the class of StringSwitch , there is function as ``` [[nodiscard]] operator R() { assert(Result && "Fell off the end of a string-switch"); return std::move(*Result); } ``` https://github.com/llvm/llvm-project/pull/68919 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits