diff options
Diffstat (limited to 'llvm/lib/CodeGen/TailDuplicator.cpp')
| -rw-r--r-- | llvm/lib/CodeGen/TailDuplicator.cpp | 10 |
1 files changed, 0 insertions, 10 deletions
diff --git a/llvm/lib/CodeGen/TailDuplicator.cpp b/llvm/lib/CodeGen/TailDuplicator.cpp index e9a5f14b04f..f3afbeb3a0e 100644 --- a/llvm/lib/CodeGen/TailDuplicator.cpp +++ b/llvm/lib/CodeGen/TailDuplicator.cpp @@ -525,16 +525,6 @@ bool TailDuplicator::shouldTailDuplicate(const MachineFunction &MF, else MaxDuplicateCount = TailDuplicateSize; - // If the block to be duplicated ends in an unanalyzable fallthrough, don't - // duplicate it. - // A similar check is necessary in MachineBlockPlacement to make sure pairs of - // blocks with unanalyzable fallthrough get layed out contiguously. - MachineBasicBlock *PredTBB = nullptr, *PredFBB = nullptr; - SmallVector<MachineOperand, 4> PredCond; - if (TII->analyzeBranch(TailBB, PredTBB, PredFBB, PredCond, true) - && TailBB.canFallThrough()) - return false; - // If the target has hardware branch prediction that can handle indirect // branches, duplicating them can often make them predictable when there // are common paths through the code. The limit needs to be high enough |
