diff options
| -rw-r--r-- | include/llvm/Target/TargetRegisterInfo.h | 6 | ||||
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.cpp | 21 | ||||
| -rw-r--r-- | lib/Target/X86/X86RegisterInfo.h | 3 |
3 files changed, 30 insertions, 0 deletions
diff --git a/include/llvm/Target/TargetRegisterInfo.h b/include/llvm/Target/TargetRegisterInfo.h index afa395f3d7..2b13483058 100644 --- a/include/llvm/Target/TargetRegisterInfo.h +++ b/include/llvm/Target/TargetRegisterInfo.h @@ -809,6 +809,12 @@ public: /// getRARegister - This method should return the register where the return /// address can be found. virtual unsigned getRARegister() const = 0; + + /// getSEHRegNum - Map a target register to an equivalent SEH register + /// number. Returns -1 if there is no equivalent value. + virtual int getSEHRegNum(unsigned i) const { + return i; + } }; diff --git a/lib/Target/X86/X86RegisterInfo.cpp b/lib/Target/X86/X86RegisterInfo.cpp index f87745ff7c..fc1b8cf08c 100644 --- a/lib/Target/X86/X86RegisterInfo.cpp +++ b/lib/Target/X86/X86RegisterInfo.cpp @@ -96,6 +96,27 @@ int X86RegisterInfo::getDwarfRegNum(unsigned RegNo, bool isEH) const { return X86GenRegisterInfo::getDwarfRegNumFull(RegNo, Flavour); } +int +X86RegisterInfo::getSEHRegNum(unsigned i) const { + int reg = getX86RegNum(i); + switch (i) { + case X86::R8: case X86::R8D: case X86::R8W: case X86::R8B: + case X86::R9: case X86::R9D: case X86::R9W: case X86::R9B: + case X86::R10: case X86::R10D: case X86::R10W: case X86::R10B: + case X86::R11: case X86::R11D: case X86::R11W: case X86::R11B: + case X86::R12: case X86::R12D: case X86::R12W: case X86::R12B: + case X86::R13: case X86::R13D: case X86::R13W: case X86::R13B: + case X86::R14: case X86::R14D: case X86::R14W: case X86::R14B: + case X86::R15: case X86::R15D: case X86::R15W: case X86::R15B: + case X86::XMM8: case X86::XMM9: case X86::XMM10: case X86::XMM11: + case X86::XMM12: case X86::XMM13: case X86::XMM14: case X86::XMM15: + case X86::YMM8: case X86::YMM9: case X86::YMM10: case X86::YMM11: + case X86::YMM12: case X86::YMM13: case X86::YMM14: case X86::YMM15: + reg += 8; + } + return reg; +} + /// getX86RegNum - This function maps LLVM register identifiers to their X86 /// specific numbering, which is used in various places encoding instructions. unsigned X86RegisterInfo::getX86RegNum(unsigned RegNo) { diff --git a/lib/Target/X86/X86RegisterInfo.h b/lib/Target/X86/X86RegisterInfo.h index 9970c52c3e..268691a5a4 100644 --- a/lib/Target/X86/X86RegisterInfo.h +++ b/lib/Target/X86/X86RegisterInfo.h @@ -81,6 +81,9 @@ public: /// (created by TableGen) for target dependencies. int getDwarfRegNum(unsigned RegNum, bool isEH) const; + // FIXME: This should be tablegen'd like getDwarfRegNum is + int getSEHRegNum(unsigned i) const; + /// Code Generation virtual methods... /// |