Values, rather than just Instructions, since it's interesting
for ConstantExprs too.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@147560
91177308-0d34-0410-b5e6-
96231b3b80d8
/// the correct dominance relationships for the operands and users hold.
/// However, this method can return true for instructions that read memory;
/// for such instructions, moving them may change the resulting value.
/// the correct dominance relationships for the operands and users hold.
/// However, this method can return true for instructions that read memory;
/// for such instructions, moving them may change the resulting value.
- bool isSafeToSpeculativelyExecute(const Instruction *Inst,
+ bool isSafeToSpeculativelyExecute(const Value *V,
const TargetData *TD = 0);
} // end namespace llvm
const TargetData *TD = 0);
} // end namespace llvm
-bool llvm::isSafeToSpeculativelyExecute(const Instruction *Inst,
+bool llvm::isSafeToSpeculativelyExecute(const Value *V,
+ const Operator *Inst = dyn_cast<Operator>(V);
+ if (!Inst)
+ return false;
+
for (unsigned i = 0, e = Inst->getNumOperands(); i != e; ++i)
if (Constant *C = dyn_cast<Constant>(Inst->getOperand(i)))
if (C->canTrap())
for (unsigned i = 0, e = Inst->getNumOperands(); i != e; ++i)
if (Constant *C = dyn_cast<Constant>(Inst->getOperand(i)))
if (C->canTrap())