#include "HexagonSubtarget.h"
#include "Hexagon.h"
+#include "HexagonRegisterInfo.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ErrorHandling.h"
using namespace llvm;
static cl::opt<bool>
EnableMemOps(
"enable-hexagon-memops",
- cl::Hidden, cl::ZeroOrMore, cl::ValueDisallowed,
- cl::desc("Generate V4 MEMOP in code generation for Hexagon target"));
+ cl::Hidden, cl::ZeroOrMore, cl::ValueDisallowed, cl::init(true),
+ cl::desc(
+ "Generate V4 MEMOP in code generation for Hexagon target"));
+
+static cl::opt<bool>
+DisableMemOps(
+ "disable-hexagon-memops",
+ cl::Hidden, cl::ZeroOrMore, cl::ValueDisallowed, cl::init(false),
+ cl::desc(
+ "Do not generate V4 MEMOP in code generation for Hexagon target"));
+
+static cl::opt<bool>
+EnableIEEERndNear(
+ "enable-hexagon-ieee-rnd-near",
+ cl::Hidden, cl::ZeroOrMore, cl::init(false),
+ cl::desc("Generate non-chopped conversion from fp to int."));
HexagonSubtarget::HexagonSubtarget(StringRef TT, StringRef CPU, StringRef FS):
HexagonGenSubtargetInfo(TT, CPU, FS),
- HexagonArchVersion(V1),
CPUString(CPU.str()) {
- ParseSubtargetFeatures(CPU, FS);
- switch(HexagonArchVersion) {
- case HexagonSubtarget::V2:
- break;
- case HexagonSubtarget::V3:
+ // If the programmer has not specified a Hexagon version, default to -mv4.
+ if (CPUString.empty())
+ CPUString = "hexagonv4";
+
+ if (CPUString == "hexagonv2") {
+ HexagonArchVersion = V2;
+ } else if (CPUString == "hexagonv3") {
EnableV3 = true;
- break;
- case HexagonSubtarget::V4:
- break;
- default:
- llvm_unreachable("Unknown Architecture Version.");
+ 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);
- // Max issue per cycle == bundle width.
- InstrItins.IssueWidth = 4;
-
- if (EnableMemOps)
+ // UseMemOps on by default unless disabled explicitly
+ if (DisableMemOps)
+ UseMemOps = false;
+ else if (EnableMemOps)
UseMemOps = true;
else
UseMemOps = false;
+
+ if (EnableIEEERndNear)
+ ModeIEEERndNear = true;
+ else
+ ModeIEEERndNear = false;
}
+