diff options
Diffstat (limited to 'src/jit/emit.h')
| -rw-r--r-- | src/jit/emit.h | 43 |
1 files changed, 33 insertions, 10 deletions
diff --git a/src/jit/emit.h b/src/jit/emit.h index e1c924f467..5ec8a6af06 100644 --- a/src/jit/emit.h +++ b/src/jit/emit.h @@ -718,7 +718,7 @@ protected: #define ID_EXTRA_BITFIELD_BITS (16) #elif defined(_TARGET_ARM64_) -// For Arm64, we have used 15 bits from the second DWORD. +// For Arm64, we have used 16 bits from the second DWORD. #define ID_EXTRA_BITFIELD_BITS (16) #elif defined(_TARGET_XARCH_) && !defined(LEGACY_BACKEND) // For xarch !LEGACY_BACKEND, we have used 14 bits from the second DWORD. @@ -882,14 +882,16 @@ protected: void checkSizes(); union idAddrUnion { - // TODO-Cleanup: We should really add a DEBUG-only tag to this union so we can add asserts - // about reading what we think is here, to avoid unexpected corruption issues. +// TODO-Cleanup: We should really add a DEBUG-only tag to this union so we can add asserts +// about reading what we think is here, to avoid unexpected corruption issues. +#ifndef _TARGET_ARM64_ emitLclVarAddr iiaLclVar; - BasicBlock* iiaBBlabel; - insGroup* iiaIGlabel; - BYTE* iiaAddr; - emitAddrMode iiaAddrMode; +#endif + BasicBlock* iiaBBlabel; + insGroup* iiaIGlabel; + BYTE* iiaAddr; + emitAddrMode iiaAddrMode; CORINFO_FIELD_HANDLE iiaFieldHnd; // iiaFieldHandle is also used to encode // an offset into the JIT data constant area @@ -920,11 +922,14 @@ protected: struct { - regNumber _idReg3 : REGNUM_BITS; - regNumber _idReg4 : REGNUM_BITS; #ifdef _TARGET_ARM64_ - unsigned _idReg3Scaled : 1; // Reg3 is scaled by idOpSize bits + // For 64-bit architecture this 32-bit structure can pack with these unsigned bit fields + emitLclVarAddr iiaLclVar; + unsigned _idReg3Scaled : 1; // Reg3 is scaled by idOpSize bits + GCtype _idGCref2 : 2; #endif + regNumber _idReg3 : REGNUM_BITS; + regNumber _idReg4 : REGNUM_BITS; }; #elif defined(_TARGET_XARCH_) && !defined(LEGACY_BACKEND) struct @@ -1072,6 +1077,21 @@ protected: assert(reg == _idReg1); } +#ifdef _TARGET_ARM64_ + GCtype idGCrefReg2() const + { + assert(!idIsTiny()); + assert(!idIsSmallDsc()); + return (GCtype)idAddr()->_idGCref2; + } + void idGCrefReg2(GCtype gctype) + { + assert(!idIsTiny()); + assert(!idIsSmallDsc()); + idAddr()->_idGCref2 = gctype; + } +#endif // _TARGET_ARM64_ + regNumber idReg2() const { return _idReg2; @@ -2006,6 +2026,9 @@ public: // Returns true if the instruction may write to more than one register. bool emitInsMayWriteMultipleRegs(instrDesc* id); + + // Returns "true" if instruction "id->idIns()" writes to a LclVar stack slot pair. + bool emitInsWritesToLclVarStackLocPair(instrDesc* id); #endif // _TARGET_ARMARCH_ /************************************************************************/ |