Please use GitHub pull requests for new patches. Phabricator shutdown timeline

Differential D49915 Diff 166236 llvm/trunk/docs/SourceLevelDebugging.rst

Changeset View

	Show First 20 Lines • Show All 423 Lines • ▼ Show 20 Lines
	``Instruction::getDebugLoc()`` and ``DILocation::getLine()``.			``Instruction::getDebugLoc()`` and ``DILocation::getLine()``.

	.. code-block:: c++			.. code-block:: c++

	if (DILocation *Loc = I->getDebugLoc()) { // Here I is an LLVM instruction			if (DILocation *Loc = I->getDebugLoc()) { // Here I is an LLVM instruction
	unsigned Line = Loc->getLine();			unsigned Line = Loc->getLine();
	StringRef File = Loc->getFilename();			StringRef File = Loc->getFilename();
	StringRef Dir = Loc->getDirectory();			StringRef Dir = Loc->getDirectory();
				bool ImplicitCode = Loc->isImplicitCode();
	}			}

				When the flag ImplicitCode is true then it means that the Instruction has been
				added by the front-end but doesn't correspond to source code written by the user. For example

				.. code-block:: c++

				if (MyBoolean) {
				MyObject MO;
				...
				}

				At the end of the scope the MyObject's destructor is called but it isn't written
				explicitly. This information is useful to avoid to have counters on brackets when
				making code coverage.

	C/C++ global variable information			C/C++ global variable information
	---------------------------------			---------------------------------

	Given an integer global variable declared as follows:			Given an integer global variable declared as follows:

	.. code-block:: c			.. code-block:: c

	_Alignas(8) int MyGlobal = 100;			_Alignas(8) int MyGlobal = 100;
	▲ Show 20 Lines • Show All 1,208 Lines • Show Last 20 Lines