diff options
Diffstat (limited to 'llvm/lib/CodeGen/MachineFunctionSplitter.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/MachineFunctionSplitter.cpp | 11 |
1 files changed, 3 insertions, 8 deletions
diff --git a/llvm/lib/CodeGen/MachineFunctionSplitter.cpp b/llvm/lib/CodeGen/MachineFunctionSplitter.cpp index 38c1c56..0ddd945 100644 --- a/llvm/lib/CodeGen/MachineFunctionSplitter.cpp +++ b/llvm/lib/CodeGen/MachineFunctionSplitter.cpp @@ -109,12 +109,6 @@ static bool isColdBlock(const MachineBasicBlock &MBB, const MachineBlockFrequencyInfo *MBFI, ProfileSummaryInfo *PSI) { std::optional<uint64_t> Count = MBFI->getBlockProfileCount(&MBB); - - // Temporary hack to cope with AArch64's jump table encoding - const TargetInstrInfo &TII = *MBB.getParent()->getSubtarget().getInstrInfo(); - if (!TII.isMBBSafeToSplitToCold(MBB)) - return false; - // For instrumentation profiles and sample profiles, we use different ways // to judge whether a block is cold and should be split. if (PSI->hasInstrumentationProfile() || PSI->hasCSInstrumentationProfile()) { @@ -178,7 +172,8 @@ bool MachineFunctionSplitter::runOnMachineFunction(MachineFunction &MF) { if (MBB.isEHPad()) LandingPads.push_back(&MBB); - else if (UseProfileData && isColdBlock(MBB, MBFI, PSI) && !SplitAllEHCode) + else if (UseProfileData && isColdBlock(MBB, MBFI, PSI) && + TII.isMBBSafeToSplitToCold(MBB) && !SplitAllEHCode) MBB.setSectionID(MBBSectionID::ColdSectionID); } @@ -190,7 +185,7 @@ bool MachineFunctionSplitter::runOnMachineFunction(MachineFunction &MF) { // Here we have UseProfileData == true. bool HasHotLandingPads = false; for (const MachineBasicBlock *LP : LandingPads) { - if (!isColdBlock(*LP, MBFI, PSI)) + if (!isColdBlock(*LP, MBFI, PSI) || !TII.isMBBSafeToSplitToCold(*LP)) HasHotLandingPads = true; } if (!HasHotLandingPads) { |