diff options
Diffstat (limited to 'llvm/include')
| -rw-r--r-- | llvm/include/llvm/Transforms/Utils/Local.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/llvm/include/llvm/Transforms/Utils/Local.h b/llvm/include/llvm/Transforms/Utils/Local.h index 490a765c3fa..a747d2e8121 100644 --- a/llvm/include/llvm/Transforms/Utils/Local.h +++ b/llvm/include/llvm/Transforms/Utils/Local.h @@ -74,6 +74,12 @@ bool ConstantFoldTerminator(BasicBlock *BB, bool DeleteDeadConditions = false, bool isInstructionTriviallyDead(Instruction *I, const TargetLibraryInfo *TLI = nullptr); +/// Return true if the result produced by the instruction would have no side +/// effects if it was not used. This is equivalent to checking whether +/// isInstructionTriviallyDead would be true if the use count was 0. +bool wouldInstructionBeTriviallyDead(Instruction *I, + const TargetLibraryInfo *TLI = nullptr); + /// If the specified value is a trivially dead instruction, delete it. /// If that makes any of its operands trivially dead, delete them too, /// recursively. Return true if any instructions were deleted. |
