diff options
Diffstat (limited to 'include/llvm/MC/MCDwarf.h')
-rw-r--r-- | include/llvm/MC/MCDwarf.h | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/include/llvm/MC/MCDwarf.h b/include/llvm/MC/MCDwarf.h index a7f40cc759..92e76121c0 100644 --- a/include/llvm/MC/MCDwarf.h +++ b/include/llvm/MC/MCDwarf.h @@ -267,18 +267,27 @@ namespace llvm { public: enum OpType { OpSameValue, OpRememberState, OpRestoreState, OpOffset, OpDefCfaRegister, OpDefCfaOffset, OpDefCfa, OpRelOffset, - OpAdjustCfaOffset, OpEscape, OpRestore, OpUndefined }; + OpAdjustCfaOffset, OpEscape, OpRestore, OpUndefined, + OpRegister }; private: OpType Operation; MCSymbol *Label; unsigned Register; - int Offset; + union { + int Offset; + unsigned Register2; + }; std::vector<char> Values; - MCCFIInstruction(OpType Op, MCSymbol *L, unsigned R, - int O, StringRef V) : + MCCFIInstruction(OpType Op, MCSymbol *L, unsigned R, int O, StringRef V) : Operation(Op), Label(L), Register(R), Offset(O), Values(V.begin(), V.end()) { + assert(Op != OpRegister); + } + + MCCFIInstruction(OpType Op, MCSymbol *L, unsigned R1, unsigned R2) : + Operation(Op), Label(L), Register(R1), Register2(R2) { + assert(Op == OpRegister); } public: @@ -335,6 +344,11 @@ namespace llvm { return MCCFIInstruction(OpEscape, L, 0, 0, Vals); } + static MCCFIInstruction + createRegister(MCSymbol *L, unsigned Register1, unsigned Register2) { + return MCCFIInstruction(OpRegister, L, Register1, Register2); + } + OpType getOperation() const { return Operation; } MCSymbol *getLabel() const { return Label; } @@ -342,10 +356,15 @@ namespace llvm { assert(Operation == OpDefCfa || Operation == OpOffset || Operation == OpRestore || Operation == OpUndefined || Operation == OpSameValue || Operation == OpDefCfaRegister || - Operation == OpRelOffset); + Operation == OpRelOffset || Operation == OpRegister); return Register; } + unsigned getRegister2() const { + assert(Operation == OpRegister); + return Register2; + } + int getOffset() const { assert(Operation == OpDefCfa || Operation == OpOffset || Operation == OpRelOffset || Operation == OpDefCfaOffset || |