diff options
| author | Dan Gohman <gohman@apple.com> | 2012-01-04 23:01:09 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2012-01-04 23:01:09 +0000 |
| commit | febaf8401779fedf8db7b02e499c5e39848fb9f5 (patch) | |
| tree | 4e2693e9a4627c162c4f9e6874eb73094485ae3e /lib/Analysis/ValueTracking.cpp | |
| parent | a5f8942e055abf1640fcd822406f875e1b2d8916 (diff) | |
Generalize isSafeToSpeculativelyExecute to work on arbitrary
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
Diffstat (limited to 'lib/Analysis/ValueTracking.cpp')
| -rw-r--r-- | lib/Analysis/ValueTracking.cpp | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/lib/Analysis/ValueTracking.cpp b/lib/Analysis/ValueTracking.cpp index 6de4426ab8..6cef42df9a 100644 --- a/lib/Analysis/ValueTracking.cpp +++ b/lib/Analysis/ValueTracking.cpp @@ -1879,8 +1879,12 @@ bool llvm::onlyUsedByLifetimeMarkers(const Value *V) { return true; } -bool llvm::isSafeToSpeculativelyExecute(const Instruction *Inst, +bool llvm::isSafeToSpeculativelyExecute(const Value *V, const TargetData *TD) { + 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()) |