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Imported Upstream version 6.0.0.172

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Former-commit-id: f3cc9b82f3e5bd8f0fd3ebc098f789556b44e9cd
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Xamarin Public Jenkins (auto-signing)
2019-04-12 14:10:50 +00:00
parent 8016999e4d
commit 64ac736ec5
32155 changed files with 3981439 additions and 75368 deletions
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38
external/llvm/lib/Support/ARMWinEH.cpp vendored Normal file
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//===-- ARMWinEH.cpp - Windows on ARM EH Support Functions ------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#include "llvm/Support/ARMWinEH.h"
#include "llvm/Support/raw_ostream.h"
namespace llvm {
namespace ARM {
namespace WinEH {
std::pair<uint16_t, uint32_t> SavedRegisterMask(const RuntimeFunction &RF) {
uint8_t NumRegisters = RF.Reg();
uint8_t RegistersVFP = RF.R();
uint8_t LinkRegister = RF.L();
uint8_t ChainedFrame = RF.C();
uint16_t GPRMask = (ChainedFrame << 11) | (LinkRegister << 14);
uint32_t VFPMask = 0;
if (RegistersVFP)
VFPMask |= (((1 << ((NumRegisters + 1) % 8)) - 1) << 8);
else
GPRMask |= (((1 << (NumRegisters + 1)) - 1) << 4);
if (PrologueFolding(RF))
GPRMask |= (((1 << (NumRegisters + 1)) - 1) << (~RF.StackAdjust() & 0x3));
return std::make_pair(GPRMask, VFPMask);
}
}
}
}