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authorStephen Hines <srhines@google.com>2014-12-01 14:51:49 -0800
committerStephen Hines <srhines@google.com>2014-12-02 16:08:10 -0800
commit37ed9c199ca639565f6ce88105f9e39e898d82d0 (patch)
tree8fb36d3910e3ee4c4e1b7422f4f017108efc52f5 /include/llvm/Analysis/CaptureTracking.h
parentd2327b22152ced7bc46dc629fc908959e8a52d03 (diff)
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Update aosp/master LLVM for rebase to r222494.
Change-Id: Ic787f5e0124df789bd26f3f24680f45e678eef2d
Diffstat (limited to 'include/llvm/Analysis/CaptureTracking.h')
-rw-r--r--include/llvm/Analysis/CaptureTracking.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/llvm/Analysis/CaptureTracking.h b/include/llvm/Analysis/CaptureTracking.h
index eccf1f8113..8b7c7a90f7 100644
--- a/include/llvm/Analysis/CaptureTracking.h
+++ b/include/llvm/Analysis/CaptureTracking.h
@@ -18,6 +18,8 @@ namespace llvm {
class Value;
class Use;
+ class Instruction;
+ class DominatorTree;
/// PointerMayBeCaptured - Return true if this pointer value may be captured
/// by the enclosing function (which is required to exist). This routine can
@@ -30,6 +32,20 @@ namespace llvm {
bool ReturnCaptures,
bool StoreCaptures);
+ /// PointerMayBeCapturedBefore - Return true if this pointer value may be
+ /// captured by the enclosing function (which is required to exist). If a
+ /// DominatorTree is provided, only captures which happen before the given
+ /// instruction are considered. This routine can be expensive, so consider
+ /// caching the results. The boolean ReturnCaptures specifies whether
+ /// returning the value (or part of it) from the function counts as capturing
+ /// it or not. The boolean StoreCaptures specified whether storing the value
+ /// (or part of it) into memory anywhere automatically counts as capturing it
+ /// or not. Captures by the provided instruction are considered if the
+ /// final parameter is true.
+ bool PointerMayBeCapturedBefore(const Value *V, bool ReturnCaptures,
+ bool StoreCaptures, const Instruction *I,
+ DominatorTree *DT, bool IncludeI = false);
+
/// This callback is used in conjunction with PointerMayBeCaptured. In
/// addition to the interface here, you'll need to provide your own getters
/// to see whether anything was captured.