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author | Arnold Schwaighofer <aschwaighofer@apple.com> | 2013-05-22 16:54:56 +0000 |
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committer | Arnold Schwaighofer <aschwaighofer@apple.com> | 2013-05-22 16:54:56 +0000 |
commit | 6e4a9c14f6e59b075b3a24825d2dc7dc9e163281 (patch) | |
tree | cfe715d8604c457897c24961d877ec5086e4041c /lib/Transforms/Vectorize | |
parent | 812789dd3d496420b31e3ee61d5d52303e385101 (diff) | |
download | llvm-6e4a9c14f6e59b075b3a24825d2dc7dc9e163281.tar.gz llvm-6e4a9c14f6e59b075b3a24825d2dc7dc9e163281.tar.bz2 llvm-6e4a9c14f6e59b075b3a24825d2dc7dc9e163281.tar.xz |
LoopVectorize: Make Value pointers that could be RAUW'ed a VH
The Value pointers we store in the induction variable list can be RAUW'ed by a
call to SCEVExpander::expandCodeFor, use a TrackingVH instead. Do the same thing
in some other places where we store pointers that could potentially be RAUW'ed.
Fixes PR16073.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@182485 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Transforms/Vectorize')
-rw-r--r-- | lib/Transforms/Vectorize/LoopVectorize.cpp | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/lib/Transforms/Vectorize/LoopVectorize.cpp b/lib/Transforms/Vectorize/LoopVectorize.cpp index d5c6ff8cad..f88ebfd015 100644 --- a/lib/Transforms/Vectorize/LoopVectorize.cpp +++ b/lib/Transforms/Vectorize/LoopVectorize.cpp @@ -80,6 +80,7 @@ #include "llvm/Support/Debug.h" #include "llvm/Support/PatternMatch.h" #include "llvm/Support/raw_ostream.h" +#include "llvm/Support/ValueHandle.h" #include "llvm/Target/TargetLibraryInfo.h" #include "llvm/Transforms/Scalar.h" #include "llvm/Transforms/Utils/BasicBlockUtils.h" @@ -458,7 +459,7 @@ public: // The starting value of the reduction. // It does not have to be zero! - Value *StartValue; + TrackingVH<Value> StartValue; // The instruction who's value is used outside the loop. Instruction *LoopExitInstr; // The kind of the reduction. @@ -503,7 +504,7 @@ public: /// This flag indicates if we need to add the runtime check. bool Need; /// Holds the pointers that we need to check. - SmallVector<Value*, 2> Pointers; + SmallVector<TrackingVH<Value>, 2> Pointers; /// Holds the pointer value at the beginning of the loop. SmallVector<const SCEV*, 2> Starts; /// Holds the pointer value at the end of the loop. @@ -517,7 +518,7 @@ public: InductionInfo(Value *Start, InductionKind K) : StartValue(Start), IK(K) {} InductionInfo() : StartValue(0), IK(IK_NoInduction) {} /// Start value. - Value *StartValue; + TrackingVH<Value> StartValue; /// Induction kind. InductionKind IK; }; |