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| author | Nicolas Geoffray <nicolas.geoffray@lip6.fr> | 2008-04-16 20:10:13 +0000 |
|---|---|---|
| committer | Nicolas Geoffray <nicolas.geoffray@lip6.fr> | 2008-04-16 20:10:13 +0000 |
| commit | 52e724ad7e679ee590f4bd763d55280586a8f1bc (patch) | |
| tree | 17e026641b730ae73981f77df025c5543c674201 /lib/Target/X86/X86InstrInfo.h | |
| parent | dc00858e11d243bd2c7cb39bbb92c557b123573e (diff) | |
| download | external_llvm-52e724ad7e679ee590f4bd763d55280586a8f1bc.tar.gz external_llvm-52e724ad7e679ee590f4bd763d55280586a8f1bc.tar.bz2 external_llvm-52e724ad7e679ee590f4bd763d55280586a8f1bc.zip | |
Infrastructure for getting the machine code size of a function and an instruction. X86, PowerPC and ARM are implemented
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@49809 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Target/X86/X86InstrInfo.h')
| -rw-r--r-- | lib/Target/X86/X86InstrInfo.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/lib/Target/X86/X86InstrInfo.h b/lib/Target/X86/X86InstrInfo.h index ce525e43bc..5f09241f16 100644 --- a/lib/Target/X86/X86InstrInfo.h +++ b/lib/Target/X86/X86InstrInfo.h @@ -15,6 +15,7 @@ #define X86INSTRUCTIONINFO_H #include "llvm/Target/TargetInstrInfo.h" +#include "X86.h" #include "X86RegisterInfo.h" #include "llvm/ADT/IndexedMap.h" #include "llvm/Target/TargetRegisterInfo.h" @@ -380,6 +381,20 @@ public: unsigned char getBaseOpcodeFor(unsigned Opcode) const { return getBaseOpcodeFor(&get(Opcode)); } + + static bool isX86_64NonExtLowByteReg(unsigned reg) { + return (reg == X86::SPL || reg == X86::BPL || + reg == X86::SIL || reg == X86::DIL); + } + + static unsigned sizeOfImm(const TargetInstrDesc *Desc); + static unsigned getX86RegNum(unsigned RegNo); + static bool isX86_64ExtendedReg(const MachineOperand &MO); + static unsigned determineREX(const MachineInstr &MI); + + /// GetInstSize - Returns the size of the specified MachineInstr. + /// + virtual unsigned GetInstSizeInBytes(const MachineInstr *MI) const; private: MachineInstr* foldMemoryOperand(MachineInstr* MI, |