HexagonSubtarget::HexagonSubtarget(StringRef TT, StringRef CPU, StringRef FS):
HexagonGenSubtargetInfo(TT, CPU, FS),
- HexagonArchVersion(V2),
CPUString(CPU.str()) {
- ParseSubtargetFeatures(CPU, FS);
- switch(HexagonArchVersion) {
- case HexagonSubtarget::V2:
- break;
- case HexagonSubtarget::V3:
- EnableV3 = true;
- break;
- case HexagonSubtarget::V4:
- break;
- case HexagonSubtarget::V5:
- break;
- default:
- // If the programmer has not specified a Hexagon version, default
- // to -mv4.
+ // If the programmer has not specified a Hexagon version, default to -mv4.
+ if (CPUString.empty())
CPUString = "hexagonv4";
- HexagonArchVersion = HexagonSubtarget::V4;
- break;
+
+ if (CPUString == "hexagonv2") {
+ HexagonArchVersion = V2;
+ } else if (CPUString == "hexagonv3") {
+ EnableV3 = true;
+ HexagonArchVersion = V3;
+ } else if (CPUString == "hexagonv4") {
+ HexagonArchVersion = V4;
+ } else if (CPUString == "hexagonv5") {
+ HexagonArchVersion = V5;
+ } else {
+ llvm_unreachable("Unrecognized Hexagon processor version");
}
+ ParseSubtargetFeatures(CPUString, FS);
+
// Initialize scheduling itinerary for the specified CPU.
InstrItins = getInstrItineraryForCPU(CPUString);