Move Instruction::isSafeToSpeculativelyExecute out of VMCore and
into Analysis as a standalone function, since there's no need for
it to be in VMCore. Also, update it to use isKnownNonZero and
other goodies available in Analysis, making it more precise,
enabling more aggressive optimization.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@146610 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Analysis/PHITransAddr.cpp b/lib/Analysis/PHITransAddr.cpp
index 86d915f..80ea219 100644
--- a/lib/Analysis/PHITransAddr.cpp
+++ b/lib/Analysis/PHITransAddr.cpp
@@ -12,6 +12,7 @@
//===----------------------------------------------------------------------===//
#include "llvm/Analysis/PHITransAddr.h"
+#include "llvm/Analysis/ValueTracking.h"
#include "llvm/Constants.h"
#include "llvm/Instructions.h"
#include "llvm/Analysis/Dominators.h"
@@ -27,7 +28,7 @@
return true;
if (isa<CastInst>(Inst) &&
- Inst->isSafeToSpeculativelyExecute())
+ isSafeToSpeculativelyExecute(Inst))
return true;
if (Inst->getOpcode() == Instruction::Add &&
@@ -186,7 +187,7 @@
// operands need to be phi translated, and if so, reconstruct it.
if (CastInst *Cast = dyn_cast<CastInst>(Inst)) {
- if (!Cast->isSafeToSpeculativelyExecute()) return 0;
+ if (!isSafeToSpeculativelyExecute(Cast)) return 0;
Value *PHIIn = PHITranslateSubExpr(Cast->getOperand(0), CurBB, PredBB, DT);
if (PHIIn == 0) return 0;
if (PHIIn == Cast->getOperand(0))
@@ -381,7 +382,7 @@
// Handle cast of PHI translatable value.
if (CastInst *Cast = dyn_cast<CastInst>(Inst)) {
- if (!Cast->isSafeToSpeculativelyExecute()) return 0;
+ if (!isSafeToSpeculativelyExecute(Cast)) return 0;
Value *OpVal = InsertPHITranslatedSubExpr(Cast->getOperand(0),
CurBB, PredBB, DT, NewInsts);
if (OpVal == 0) return 0;