================ @@ -16542,12 +16542,64 @@ Value *CodeGenFunction::EmitPPCBuiltinExpr(unsigned BuiltinID, Intrinsic::ID ID = Intrinsic::not_intrinsic; + // The lambda function converts builtin_cpu_is function into directly + // returning false or true, or it gets and checks the information from the + // kernel variable _system_configuration for AIX OS. + +#include "llvm/TargetParser/PPCTargetParser.def" + auto ConvBuiltinCpu = [&](unsigned SupportMagic, unsigned FieldIdx, + unsigned CompOp, unsigned OpValue) -> Value * { + if (SupportMagic == AIX_BUILTIN_PPC_FALSE) + return llvm::ConstantInt::getFalse(ConvertType(E->getType())); + + if (SupportMagic == AIX_BUILTIN_PPC_TRUE) + return llvm::ConstantInt::getTrue(ConvertType(E->getType())); + + assert(SupportMagic <= SYS_CONF && "Invalid value for SupportMagic."); + llvm::Type *STy = llvm::StructType::get(PPC_SYSTEMCONFIG_TYPE); + + llvm::Constant *SysConf = + CGM.CreateRuntimeVariable(STy, "_system_configuration"); + + // Grab the appropriate field from _system_configuration. + llvm::Value *Idxs[] = {ConstantInt::get(Int32Ty, 0), + ConstantInt::get(Int32Ty, FieldIdx)}; + + llvm::Value *FieldValue = Builder.CreateGEP(STy, SysConf, Idxs); + FieldValue = Builder.CreateAlignedLoad(Int32Ty, FieldValue, + CharUnits::fromQuantity(4)); + + assert((CompOp == COMP_EQ) && "Only equal comparisons are supported!"); ---------------- amy-kwan wrote:
I noticed that this does not get set later in this function. Should this be checked earlier rather than later? https://github.com/llvm/llvm-project/pull/80069 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits