diff --git a/lib/Target/AArch64/AArch64InstrInfo.cpp b/lib/Target/AArch64/AArch64InstrInfo.cpp index 429f6939db9..f5b0c8b450a 100644 --- a/lib/Target/AArch64/AArch64InstrInfo.cpp +++ b/lib/Target/AArch64/AArch64InstrInfo.cpp @@ -1445,38 +1445,40 @@ bool AArch64InstrInfo::shouldClusterLoads(MachineInstr *FirstLdSt, bool AArch64InstrInfo::shouldScheduleAdjacent(MachineInstr *First, MachineInstr *Second) const { - // Cyclone can fuse CMN, CMP, TST followed by Bcc. - unsigned SecondOpcode = Second->getOpcode(); - if (SecondOpcode == AArch64::Bcc) { - switch (First->getOpcode()) { - default: - return false; - case AArch64::SUBSWri: - case AArch64::ADDSWri: - case AArch64::ANDSWri: - case AArch64::SUBSXri: - case AArch64::ADDSXri: - case AArch64::ANDSXri: - return true; + if (Subtarget.isCyclone()) { + // Cyclone can fuse CMN, CMP, TST followed by Bcc. + unsigned SecondOpcode = Second->getOpcode(); + if (SecondOpcode == AArch64::Bcc) { + switch (First->getOpcode()) { + default: + return false; + case AArch64::SUBSWri: + case AArch64::ADDSWri: + case AArch64::ANDSWri: + case AArch64::SUBSXri: + case AArch64::ADDSXri: + case AArch64::ANDSXri: + return true; + } } - } - // Cyclone B0 also supports ALU operations followed by CBZ/CBNZ. - if (SecondOpcode == AArch64::CBNZW || SecondOpcode == AArch64::CBNZX || - SecondOpcode == AArch64::CBZW || SecondOpcode == AArch64::CBZX) { - switch (First->getOpcode()) { - default: - return false; - case AArch64::ADDWri: - case AArch64::ADDXri: - case AArch64::ANDWri: - case AArch64::ANDXri: - case AArch64::EORWri: - case AArch64::EORXri: - case AArch64::ORRWri: - case AArch64::ORRXri: - case AArch64::SUBWri: - case AArch64::SUBXri: - return true; + // Cyclone B0 also supports ALU operations followed by CBZ/CBNZ. + if (SecondOpcode == AArch64::CBNZW || SecondOpcode == AArch64::CBNZX || + SecondOpcode == AArch64::CBZW || SecondOpcode == AArch64::CBZX) { + switch (First->getOpcode()) { + default: + return false; + case AArch64::ADDWri: + case AArch64::ADDXri: + case AArch64::ANDWri: + case AArch64::ANDXri: + case AArch64::EORWri: + case AArch64::EORXri: + case AArch64::ORRWri: + case AArch64::ORRXri: + case AArch64::SUBWri: + case AArch64::SUBXri: + return true; + } } } return false;