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Implement ARMBaseRegisterInfo::getCallPreservedMask().

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Move ARM callee-saved lists into ARMCallingConv.td.

llvm-svn: 148357
This commit is contained in:
Jakob Stoklund Olesen 2012-01-17 23:09:00 +00:00
parent 0693cfb2ae
commit 057a8e7e4a
3 changed files with 17 additions and 19 deletions
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24
lib/Target/ARM/ARMBaseRegisterInfo.cpp
View File

@ -63,26 +63,12 @@ ARMBaseRegisterInfo::ARMBaseRegisterInfo(const ARMBaseInstrInfo &tii,
const unsigned*
ARMBaseRegisterInfo::getCalleeSavedRegs(const MachineFunction *MF) const {
static const unsigned CalleeSavedRegs[] = {
ARM::LR, ARM::R11, ARM::R10, ARM::R9, ARM::R8,
ARM::R7, ARM::R6, ARM::R5, ARM::R4,
return (STI.isTargetIOS()) ? CSR_iOS_SaveList : CSR_AAPCS_SaveList;
}
ARM::D15, ARM::D14, ARM::D13, ARM::D12,
ARM::D11, ARM::D10, ARM::D9, ARM::D8,
0
};
static const unsigned iOSCalleeSavedRegs[] = {
// iOS ABI deviates from ARM standard ABI. R9 is not a callee-saved
// register.
ARM::LR, ARM::R7, ARM::R6, ARM::R5, ARM::R4,
ARM::R11, ARM::R10, ARM::R8,
ARM::D15, ARM::D14, ARM::D13, ARM::D12,
ARM::D11, ARM::D10, ARM::D9, ARM::D8,
0
};
return (STI.isTargetIOS()) ? iOSCalleeSavedRegs : CalleeSavedRegs;
const uint32_t*
ARMBaseRegisterInfo::getCallPreservedMask(CallingConv::ID) const {
return (STI.isTargetIOS()) ? CSR_iOS_RegMask : CSR_AAPCS_RegMask;
}
BitVector ARMBaseRegisterInfo::

1
lib/Target/ARM/ARMBaseRegisterInfo.h
View File

@ -95,6 +95,7 @@ protected:
public:
/// Code Generation virtual methods...
const unsigned *getCalleeSavedRegs(const MachineFunction *MF = 0) const;
const uint32_t *getCallPreservedMask(CallingConv::ID) const;
BitVector getReservedRegs(const MachineFunction &MF) const;

11
lib/Target/ARM/ARMCallingConv.td
View File

@ -164,3 +164,14 @@ def RetCC_ARM_AAPCS_VFP : CallingConv<[
S9, S10, S11, S12, S13, S14, S15]>>,
CCDelegateTo<RetCC_ARM_AAPCS_Common>
]>;
//===----------------------------------------------------------------------===//
// Callee-saved register lists.
//===----------------------------------------------------------------------===//
def CSR_AAPCS : CalleeSavedRegs<(add LR, R11, R10, R9, R8, R7, R6, R5, R4,
(sequence "D%u", 15, 8))>;
// iOS ABI deviates from ARM standard ABI. R9 is not a callee-saved register.
// Also save R7-R4 first to match the stack frame fixed spill areas.
def CSR_iOS : CalleeSavedRegs<(add LR, R7, R6, R5, R4, (sub CSR_AAPCS, R9))>;