diff options
Diffstat (limited to 'llvm/lib/Target')
| -rw-r--r-- | llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp b/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp index 66e38cfc8b9..dad314f758e 100644 --- a/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp +++ b/llvm/lib/Target/Hexagon/HexagonInstrInfo.cpp @@ -3048,10 +3048,29 @@ bool HexagonInstrInfo::predCanBeUsedAsDotNew(const MachineInstr &MI, return false; } - // Hexagon Programmer's Reference says that decbin, memw_locked, and - // memd_locked cannot be used as .new as well, - // but we don't seem to have these instructions defined. - return MI.getOpcode() != Hexagon::A4_tlbmatch; + // Instruction that produce late predicate cannot be used as sources of + // dot-new. + switch (MI.getOpcode()) { + case Hexagon::A4_addp_c: + case Hexagon::A4_subp_c: + case Hexagon::A4_tlbmatch: + case Hexagon::A5_ACS: + case Hexagon::F2_sfinvsqrta: + case Hexagon::F2_sfrecipa: + case Hexagon::J2_endloop0: + case Hexagon::J2_endloop01: + case Hexagon::J2_ploop1si: + case Hexagon::J2_ploop1sr: + case Hexagon::J2_ploop2si: + case Hexagon::J2_ploop2sr: + case Hexagon::J2_ploop3si: + case Hexagon::J2_ploop3sr: + case Hexagon::S2_cabacdecbin: + case Hexagon::S2_storew_locked: + case Hexagon::S4_stored_locked: + return false; + } + return true; } bool HexagonInstrInfo::PredOpcodeHasJMP_c(unsigned Opcode) const { |
