clangcms::FiniteMathChecker Class Reference

#include <FiniteMathChecker.h>

Inheritance diagram for clangcms::FiniteMathChecker:

Public Member Functions
void	checkPreStmt (const clang::CallExpr *ref, clang::ento::CheckerContext &C) const

Private Attributes
std::unique_ptr< clang::ento::BugType >	BT

Detailed Description

Definition at line 11 of file FiniteMathChecker.h.

Member Function Documentation

void clangcms::FiniteMathChecker::checkPreStmt	(	const clang::CallExpr *	ref,
		clang::ento::CheckerContext &	C
	)		const

Definition at line 15 of file FiniteMathChecker.cc.

References BT, eostools::move(), N, and edmIntegrityCheck::report.

{
  const clang::ento::ProgramStateRef state = ctx.getState();
  const clang::LocationContext *LC = ctx.getLocationContext();
  const clang::Expr *Callee = CE->getCallee();
  const clang::FunctionDecl *FD = state->getSVal(Callee, LC).getAsFunctionDecl();

  if (!FD)
    return;

  // Get the name of the callee.
  clang::IdentifierInfo *II = FD->getIdentifier();
  if (!II)   // if no identifier, not a simple C function
    return;

  if (!II->isStr("isnan") && !II->isStr("isinf")) 
    return;

  clang::ento::ExplodedNode *N = ctx.generateErrorNode();
  if (!N)
    return;

  if (!BT)
    BT.reset(new clang::ento::BugType(this,"std::isnan / std::isinf does not work when fast-math is used. Please use edm::isNotFinite from 'FWCore/Utilities/interface/isFinite.h'", "fastmath plugin"));

  std::unique_ptr<clang::ento::BugReport> report = llvm::make_unique<clang::ento::BugReport>(*BT, BT->getName(), N);
  report->addRange(Callee->getSourceRange());
  ctx.emitReport(std::move(report));
}

Member Data Documentation

std::unique_ptr<clang::ento::BugType> clangcms::FiniteMathChecker::BT

mutableprivate

Definition at line 12 of file FiniteMathChecker.h.

Referenced by checkPreStmt().