Lines Matching defs:captured

1 //===--- CaptureTracking.cpp - Determine whether a pointer is captured ----===//
9 // This file contains routines that help determine which pointers are captured.
10 // A pointer value is captured if the function makes a copy of any part of the
11 // pointer that outlives the call.  Not being captured means, more or less, that
35 STATISTIC(NumCaptured,          "Number of pointers maybe captured");
36 STATISTIC(NumNotCaptured,       "Number of pointers not captured");
37 STATISTIC(NumCapturedBefore,    "Number of pointers maybe captured before");
38 STATISTIC(NumNotCapturedBefore, "Number of pointers not captured before");
84   bool captured(const Use *U) override {
125   bool captured(const Use *U) override {
152 /// be captured. Here an instruction A is considered earlier than instruction
169   bool captured(const Use *U) override {
197 /// PointerMayBeCaptured - Return true if this pointer value may be captured
207          "It doesn't make sense to ask whether a global is captured.");
223     LLVM_DEBUG(dbgs() << "not captured\n");
229 /// captured by the enclosing function (which is required to exist). If a
243          "It doesn't make sense to ask whether a global is captured.");
266          "It doesn't make sense to ask whether a global is captured.");
290     // Not captured if the callee is readonly, doesn't return a copy through
297     // The pointer is not captured if returned pointer is not captured.
312     // be captured.  This is a subtle point considering that (for example)
315     // captured, even though the loaded value might be the pointer itself
320     // Not captured if only passed via 'nocapture' arguments.
323       // The parameter is not marked 'nocapture' - captured.
334     // "va-arg" from a pointer does not cause it to be captured.
337     // Stored the pointer - conservatively assume it may be captured.
345     // As with a store, the location being accessed is not captured,
356     // As with a store, the location being accessed is not captured,
374     // The original value is not captured via this if the new value isn't.
402     // Something else - be conservative and say it is captured.
420       // is captured to avoid taking too much compile time.
445       if (Tracker->captured(U))