| #include "RISCVBaseInfo.h" |
| #include "llvm/ADT/ArrayRef.h" |
| #include "llvm/ADT/Triple.h" |
| #include "llvm/Support/raw_ostream.h" |
| |
| namespace llvm { |
| namespace RISCVSysReg { |
| #define GET_SysRegsList_IMPL |
| #include "RISCVGenSystemOperands.inc" |
| } // namespace RISCVSysReg |
| |
| namespace RISCVABI { |
| ABI computeTargetABI(const Triple &TT, FeatureBitset FeatureBits, |
| StringRef ABIName) { |
| auto TargetABI = StringSwitch<ABI>(ABIName) |
| .Case("ilp32", ABI_ILP32) |
| .Case("ilp32f", ABI_ILP32F) |
| .Case("ilp32d", ABI_ILP32D) |
| .Case("ilp32e", ABI_ILP32E) |
| .Case("lp64", ABI_LP64) |
| .Case("lp64f", ABI_LP64F) |
| .Case("lp64d", ABI_LP64D) |
| .Default(ABI_Unknown); |
| |
| if (!ABIName.empty() && TargetABI == ABI_Unknown) { |
| errs() |
| << "'" << ABIName |
| << "' is not a recognized ABI for this target (ignoring target-abi)\n"; |
| } else if (ABIName.startswith("ilp32") && TT.isArch64Bit()) { |
| errs() << "32-bit ABIs are not supported for 64-bit targets (ignoring " |
| "target-abi)\n"; |
| TargetABI = ABI_Unknown; |
| } else if (ABIName.startswith("lp64") && !TT.isArch64Bit()) { |
| errs() << "64-bit ABIs are not supported for 32-bit targets (ignoring " |
| "target-abi)\n"; |
| TargetABI = ABI_Unknown; |
| } else if (ABIName.endswith("f") && !FeatureBits[RISCV::FeatureStdExtF]) { |
| errs() << "Hard-float 'f' ABI can't be used for a target that " |
| "doesn't support the F instruction set extension (ignoring " |
| "target-abi)\n"; |
| TargetABI = ABI_Unknown; |
| } else if (ABIName.endswith("d") && !FeatureBits[RISCV::FeatureStdExtD]) { |
| errs() << "Hard-float 'd' ABI can't be used for a target that " |
| "doesn't support the D instruction set extension (ignoring " |
| "target-abi)\n"; |
| TargetABI = ABI_Unknown; |
| } |
| |
| // For now, default to the ilp32/lp64 if no explicit ABI is given or an |
| // invalid/unrecognised string is given. In the future, it might be worth |
| // changing this to default to ilp32f/lp64f and ilp32d/lp64d when hardware |
| // support for floating point is present. |
| if (TargetABI == ABI_Unknown) { |
| TargetABI = TT.isArch64Bit() ? ABI_LP64 : ABI_ILP32; |
| } |
| |
| return TargetABI; |
| } |
| } // namespace RISCVABI |
| } // namespace llvm |