#include "llvm/ADT/MapVector.h"
#include "llvm/ADT/SmallVector.h"
#include "llvm/CodeGen/MachineInstr.h"
+#include "llvm/Support/Debug.h"
#include <map>
#include <vector>
unsigned getNextScratchIdx(unsigned StartIdx = 0) const;
};
+/// MI-level Statepoint operands
+///
+/// Statepoint operands take the form:
+/// <id>, <num patch bytes >, <num call arguments>, <call target>,
+/// [call arguments], <StackMaps::ConstantOp>, <calling convention>,
+/// <StackMaps::ConstantOp>, <statepoint flags>,
+/// <StackMaps::ConstantOp>, <num other args>, [other args],
+/// [gc values]
+class StatepointOpers {
+private:
+ // These values are aboolute offsets into the operands of the statepoint
+ // instruction.
+ enum { IDPos, NBytesPos, NCallArgsPos, CallTargetPos, MetaEnd };
+
+ // These values are relative offests from the start of the statepoint meta
+ // arguments (i.e. the end of the call arguments).
+ enum {
+ CCOffset = 1,
+ FlagsOffset = 3,
+ NumVMSArgsOffset = 5
+ };
+
+public:
+ explicit StatepointOpers(const MachineInstr *MI):
+ MI(MI) { }
+
+ /// Get starting index of non call related arguments
+ /// (calling convention, statepoint flags, vm state and gc state).
+ unsigned getVarIdx() const {
+ return MI->getOperand(NCallArgsPos).getImm() + MetaEnd;
+ }
+
+ /// Return the ID for the given statepoint.
+ uint64_t getID() const { return MI->getOperand(IDPos).getImm(); }
+
+ /// Return the number of patchable bytes the given statepoint should emit.
+ uint32_t getNumPatchBytes() const {
+ return MI->getOperand(NBytesPos).getImm();
+ }
+
+ /// Returns the target of the underlying call.
+ const MachineOperand &getCallTarget() const {
+ return MI->getOperand(CallTargetPos);
+ }
+
+private:
+ const MachineInstr *MI;
+};
+
class StackMaps {
public:
struct Location {
/// \brief Generate a stackmap record for a patchpoint instruction.
void recordPatchPoint(const MachineInstr &MI);
+ /// \brief Generate a stackmap record for a statepoint instruction.
+ void recordStatepoint(const MachineInstr &MI);
+
/// If there is any stack map data, create a stack map section and serialize
/// the map info into it. This clears the stack map data structures
/// afterwards.
private:
static const char *WSMP;
-
typedef SmallVector<Location, 8> LocationVec;
typedef SmallVector<LiveOutReg, 8> LiveOutVec;
- typedef MapVector<int64_t, int64_t> ConstantPool;
+ typedef MapVector<uint64_t, uint64_t> ConstantPool;
typedef MapVector<const MCSymbol *, uint64_t> FnStackSizeMap;
struct CallsiteInfo {
void emitConstantPoolEntries(MCStreamer &OS);
/// \brief Emit the callsite info for each stackmap/patchpoint intrinsic call.
- void emitCallsiteEntries(MCStreamer &OS, const TargetRegisterInfo *TRI);
+ void emitCallsiteEntries(MCStreamer &OS);
+
+ void print(raw_ostream &OS);
+ void debug() { print(dbgs()); }
};
}