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Implement ARMBaseRegisterInfo::getCallPreservedMask().

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Move ARM callee-saved lists into ARMCallingConv.td.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@148357 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Jakob Stoklund Olesen
2012-01-17 23:09:00 +00:00
parent 893f4864b3
commit 3ee7d15284
3 changed files with 17 additions and 19 deletions
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11
lib/Target/ARM/ARMCallingConv.td
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@@ -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))>;