diff options
Diffstat (limited to 'lib/Target/Mips/MipsSEInstrInfo.cpp')
-rw-r--r-- | lib/Target/Mips/MipsSEInstrInfo.cpp | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/lib/Target/Mips/MipsSEInstrInfo.cpp b/lib/Target/Mips/MipsSEInstrInfo.cpp index 11ea7c00da..5f8954ba48 100644 --- a/lib/Target/Mips/MipsSEInstrInfo.cpp +++ b/lib/Target/Mips/MipsSEInstrInfo.cpp @@ -248,6 +248,26 @@ unsigned MipsSEInstrInfo::GetOppositeBranchOpc(unsigned Opc) const { } } +/// Adjust SP by Amount bytes. +void MipsSEInstrInfo::adjustStackPtr(unsigned SP, int64_t Amount, + MachineBasicBlock &MBB, + MachineBasicBlock::iterator I) const { + const MipsSubtarget &STI = TM.getSubtarget<MipsSubtarget>(); + DebugLoc DL = I != MBB.end() ? I->getDebugLoc() : DebugLoc(); + unsigned ADDu = STI.isABI_N64() ? Mips::DADDu : Mips::ADDu; + unsigned ADDiu = STI.isABI_N64() ? Mips::DADDiu : Mips::ADDiu; + + if (isInt<16>(Amount))// addi sp, sp, amount + BuildMI(MBB, I, DL, get(ADDiu), SP).addReg(SP).addImm(Amount); + else { // Expand immediate that doesn't fit in 16-bit. + unsigned ATReg = STI.isABI_N64() ? Mips::AT_64 : Mips::AT; + + MBB.getParent()->getInfo<MipsFunctionInfo>()->setEmitNOAT(); + Mips::loadImmediate(Amount, STI.isABI_N64(), *this, MBB, I, DL, false, 0); + BuildMI(MBB, I, DL, get(ADDu), SP).addReg(SP).addReg(ATReg); + } +} + unsigned MipsSEInstrInfo::GetAnalyzableBrOpc(unsigned Opc) const { return (Opc == Mips::BEQ || Opc == Mips::BNE || Opc == Mips::BGTZ || Opc == Mips::BGEZ || Opc == Mips::BLTZ || Opc == Mips::BLEZ || |