diff options
Diffstat (limited to 'llvm/lib/Transforms/IPO/FunctionAttrs.cpp')
-rw-r--r-- | llvm/lib/Transforms/IPO/FunctionAttrs.cpp | 27 |
1 files changed, 6 insertions, 21 deletions
diff --git a/llvm/lib/Transforms/IPO/FunctionAttrs.cpp b/llvm/lib/Transforms/IPO/FunctionAttrs.cpp index 4ae9b170a3a..a21a320faaa 100644 --- a/llvm/lib/Transforms/IPO/FunctionAttrs.cpp +++ b/llvm/lib/Transforms/IPO/FunctionAttrs.cpp @@ -782,7 +782,7 @@ static bool addNoAliasAttrs(const SCCNodeSet &SCCNodes) { /// \p Speculative based on whether the returned conclusion is a speculative /// conclusion due to SCC calls. static bool isReturnNonNull(Function *F, const SCCNodeSet &SCCNodes, - const TargetLibraryInfo &TLI, bool &Speculative) { + bool &Speculative) { assert(F->getReturnType()->isPointerTy() && "nonnull only meaningful on pointer types"); Speculative = false; @@ -796,7 +796,7 @@ static bool isReturnNonNull(Function *F, const SCCNodeSet &SCCNodes, Value *RetVal = FlowsToReturn[i]; // If this value is locally known to be non-null, we're good - if (isKnownNonNull(RetVal, &TLI)) + if (isKnownNonNull(RetVal)) continue; // Otherwise, we need to look upwards since we can't make any local @@ -845,8 +845,7 @@ static bool isReturnNonNull(Function *F, const SCCNodeSet &SCCNodes, } /// Deduce nonnull attributes for the SCC. -static bool addNonNullAttrs(const SCCNodeSet &SCCNodes, - const TargetLibraryInfo &TLI) { +static bool addNonNullAttrs(const SCCNodeSet &SCCNodes) { // Speculative that all functions in the SCC return only nonnull // pointers. We may refute this as we analyze functions. bool SCCReturnsNonNull = true; @@ -873,7 +872,7 @@ static bool addNonNullAttrs(const SCCNodeSet &SCCNodes, continue; bool Speculative = false; - if (isReturnNonNull(F, SCCNodes, TLI, Speculative)) { + if (isReturnNonNull(F, SCCNodes, Speculative)) { if (!Speculative) { // Mark the function eagerly since we may discover a function // which prevents us from speculating about the entire SCC @@ -987,16 +986,9 @@ static bool addNoRecurseAttrs(const SCCNodeSet &SCCNodes) { PreservedAnalyses PostOrderFunctionAttrsPass::run(LazyCallGraph::SCC &C, CGSCCAnalysisManager &AM) { - Module &M = *C.begin()->getFunction().getParent(); - const ModuleAnalysisManager &MAM = - AM.getResult<ModuleAnalysisManagerCGSCCProxy>(C).getManager(); FunctionAnalysisManager &FAM = AM.getResult<FunctionAnalysisManagerCGSCCProxy>(C).getManager(); - // FIXME: Need some way to make it more reasonable to assume that this is - // always cached. - TargetLibraryInfo &TLI = *MAM.getCachedResult<TargetLibraryAnalysis>(M); - // We pass a lambda into functions to wire them up to the analysis manager // for getting function analyses. auto AARGetter = [&](Function &F) -> AAResults & { @@ -1039,7 +1031,7 @@ PreservedAnalyses PostOrderFunctionAttrsPass::run(LazyCallGraph::SCC &C, // more precise attributes as well. if (!HasUnknownCall) { Changed |= addNoAliasAttrs(SCCNodes); - Changed |= addNonNullAttrs(SCCNodes, TLI); + Changed |= addNonNullAttrs(SCCNodes); Changed |= removeConvergentAttrs(SCCNodes); Changed |= addNoRecurseAttrs(SCCNodes); } @@ -1059,13 +1051,9 @@ struct PostOrderFunctionAttrsLegacyPass : public CallGraphSCCPass { void getAnalysisUsage(AnalysisUsage &AU) const override { AU.setPreservesCFG(); AU.addRequired<AssumptionCacheTracker>(); - AU.addRequired<TargetLibraryInfoWrapperPass>(); getAAResultsAnalysisUsage(AU); CallGraphSCCPass::getAnalysisUsage(AU); } - -private: - TargetLibraryInfo *TLI; }; } @@ -1074,7 +1062,6 @@ INITIALIZE_PASS_BEGIN(PostOrderFunctionAttrsLegacyPass, "functionattrs", "Deduce function attributes", false, false) INITIALIZE_PASS_DEPENDENCY(AssumptionCacheTracker) INITIALIZE_PASS_DEPENDENCY(CallGraphWrapperPass) -INITIALIZE_PASS_DEPENDENCY(TargetLibraryInfoWrapperPass) INITIALIZE_PASS_END(PostOrderFunctionAttrsLegacyPass, "functionattrs", "Deduce function attributes", false, false) @@ -1083,8 +1070,6 @@ Pass *llvm::createPostOrderFunctionAttrsLegacyPass() { return new PostOrderFunct bool PostOrderFunctionAttrsLegacyPass::runOnSCC(CallGraphSCC &SCC) { if (skipSCC(SCC)) return false; - - TLI = &getAnalysis<TargetLibraryInfoWrapperPass>().getTLI(); bool Changed = false; // We compute dedicated AA results for each function in the SCC as needed. We @@ -1123,7 +1108,7 @@ bool PostOrderFunctionAttrsLegacyPass::runOnSCC(CallGraphSCC &SCC) { // more precise attributes as well. if (!ExternalNode) { Changed |= addNoAliasAttrs(SCCNodes); - Changed |= addNonNullAttrs(SCCNodes, *TLI); + Changed |= addNonNullAttrs(SCCNodes); Changed |= removeConvergentAttrs(SCCNodes); Changed |= addNoRecurseAttrs(SCCNodes); } |