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[CodeGen] Expose some data types and accessors from StackMaps 

Summary:
This is for supporting custom stack map formats, where the
custom printer can access the stack map data.

Patch by Cherry Zhang <cherryyz@google.com>.

Related: https://reviews.llvm.org/D53892

Reviewers: thanm, apilipenko

Reviewed By: apilipenko

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D54224

llvm-svn: 347061
This commit is contained in:
Than McIntosh 2018-11-16 16:48:49 +00:00
parent f967328e24
commit fec48be329
1 changed files with 25 additions and 19 deletions
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44
llvm/include/llvm/CodeGen/StackMaps.h
View File

@ -236,25 +236,6 @@ public:
FnInfos.clear();
}
/// Generate a stackmap record for a stackmap instruction.
///
/// MI must be a raw STACKMAP, not a PATCHPOINT.
void recordStackMap(const MachineInstr &MI);
/// Generate a stackmap record for a patchpoint instruction.
void recordPatchPoint(const MachineInstr &MI);
/// 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.
void serializeToStackMapSection();
private:
static const char *WSMP;
using LocationVec = SmallVector<Location, 8>;
using LiveOutVec = SmallVector<LiveOutReg, 8>;
using ConstantPool = MapVector<uint64_t, uint64_t>;
@ -283,6 +264,31 @@ private:
using FnInfoMap = MapVector<const MCSymbol *, FunctionInfo>;
using CallsiteInfoList = std::vector<CallsiteInfo>;
/// Generate a stackmap record for a stackmap instruction.
///
/// MI must be a raw STACKMAP, not a PATCHPOINT.
void recordStackMap(const MachineInstr &MI);
/// Generate a stackmap record for a patchpoint instruction.
void recordPatchPoint(const MachineInstr &MI);
/// 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.
void serializeToStackMapSection();
/// Get call site info.
CallsiteInfoList &getCSInfos() { return CSInfos; }
/// Get function info.
FnInfoMap &getFnInfos() { return FnInfos; }
private:
static const char *WSMP;
AsmPrinter &AP;
CallsiteInfoList CSInfos;
ConstantPool ConstPool;