diff options
Diffstat (limited to 'llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp')
| -rw-r--r-- | llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp b/llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp index 55631bcba23..96ae45ae3d0 100644 --- a/llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp +++ b/llvm/lib/Target/AArch64/AArch64RegisterInfo.cpp @@ -203,6 +203,10 @@ AArch64RegisterInfo::getReservedRegs(const MachineFunction &MF) const { if (hasBasePointer(MF)) markSuperRegs(Reserved, AArch64::W19); + // SLH uses register W16/X16 as the taint register. + if (MF.getFunction().hasFnAttribute(Attribute::SpeculativeLoadHardening)) + markSuperRegs(Reserved, AArch64::W16); + assert(checkAllSuperRegsMarked(Reserved)); return Reserved; } |
