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//===- Assumptions.cpp ------ Collection of helpers for assumptions -------===// 
// 
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. 
// See https://llvm.org/LICENSE.txt for license information. 
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception 
// 
//===----------------------------------------------------------------------===// 
// 
//===----------------------------------------------------------------------===// 
 
#include "llvm/IR/Assumptions.h" 
#include "llvm/IR/Attributes.h" 
#include "llvm/IR/Function.h" 
 
using namespace llvm; 
 
bool llvm::hasAssumption(Function &F, 
                         const KnownAssumptionString &AssumptionStr) { 
  const Attribute &A = F.getFnAttribute(AssumptionAttrKey); 
  if (!A.isValid()) 
    return false; 
  assert(A.isStringAttribute() && "Expected a string attribute!"); 
 
  SmallVector<StringRef, 8> Strings; 
  A.getValueAsString().split(Strings, ","); 
 
  return llvm::any_of(Strings, [=](StringRef Assumption) { 
    return Assumption == AssumptionStr; 
  }); 
} 
 
StringSet<> llvm::KnownAssumptionStrings({ 
    "omp_no_openmp",          // OpenMP 5.1 
    "omp_no_openmp_routines", // OpenMP 5.1 
    "omp_no_parallelism",     // OpenMP 5.1 
});