diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86InstrInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.cpp b/llvm/lib/Target/X86/X86InstrInfo.cpp index 20d3cf0d927..124ad5dfdf4 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.cpp +++ b/llvm/lib/Target/X86/X86InstrInfo.cpp @@ -2877,6 +2877,14 @@ static unsigned getLoadStoreRegOpcode(unsigned Reg, assert(STI.hasBWI() && "KMOVD requires BWI"); return load ? X86::KMOVDkm : X86::KMOVDmk; } + // All of these mask pair classes have the same spill size, the same kind + // of kmov instructions can be used with all of them. + if (X86::VK1PAIRRegClass.hasSubClassEq(RC) || + X86::VK2PAIRRegClass.hasSubClassEq(RC) || + X86::VK4PAIRRegClass.hasSubClassEq(RC) || + X86::VK8PAIRRegClass.hasSubClassEq(RC) || + X86::VK16PAIRRegClass.hasSubClassEq(RC)) + return load ? X86::MASKPAIR16LOAD : X86::MASKPAIR16STORE; llvm_unreachable("Unknown 4-byte regclass"); case 8: if (X86::GR64RegClass.hasSubClassEq(RC)) |
