Refactor LICM to expose canSinkOrHoistInst to LoopSink pass.
Summary: LoopSink pass shares the same canSinkOrHoistInst functionality with LICM pass. This patch exposes this function in preparation of https://reviews.llvm.org/D22778
Reviewers: chandlerc, davidxl, danielcdh
Subscribers: llvm-commits
Differential Revision: https://reviews.llvm.org/D24171
llvm-svn: 280429
diff --git a/llvm/lib/Transforms/Scalar/LICM.cpp b/llvm/lib/Transforms/Scalar/LICM.cpp
index 99d7e2e..c8af309 100644
--- a/llvm/lib/Transforms/Scalar/LICM.cpp
+++ b/llvm/lib/Transforms/Scalar/LICM.cpp
@@ -100,10 +100,6 @@
CloneInstructionInExitBlock(Instruction &I, BasicBlock &ExitBlock, PHINode &PN,
const LoopInfo *LI,
const LoopSafetyInfo *SafetyInfo);
-static bool canSinkOrHoistInst(Instruction &I, AliasAnalysis *AA,
- DominatorTree *DT,
- Loop *CurLoop, AliasSetTracker *CurAST,
- LoopSafetyInfo *SafetyInfo);
namespace {
struct LoopInvariantCodeMotion {
@@ -439,9 +435,9 @@
/// canSinkOrHoistInst - Return true if the hoister and sinker can handle this
/// instruction.
///
-bool canSinkOrHoistInst(Instruction &I, AAResults *AA, DominatorTree *DT,
- Loop *CurLoop, AliasSetTracker *CurAST,
- LoopSafetyInfo *SafetyInfo) {
+bool llvm::canSinkOrHoistInst(Instruction &I, AAResults *AA, DominatorTree *DT,
+ Loop *CurLoop, AliasSetTracker *CurAST,
+ LoopSafetyInfo *SafetyInfo) {
if (!isa<LoadInst>(I) && !isa<CallInst>(I) &&
!isa<BinaryOperator>(I) && !isa<CastInst>(I) && !isa<SelectInst>(I) &&
!isa<GetElementPtrInst>(I) && !isa<CmpInst>(I) &&