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| author | Craig Topper <craig.topper@intel.com> | 2017-10-19 20:59:41 +0000 |
|---|---|---|
| committer | Craig Topper <craig.topper@intel.com> | 2017-10-19 20:59:41 +0000 |
| commit | ff69ffbf9a60edcda76f7420973c1eedb3e873b1 (patch) | |
| tree | 3bb8ebf3b406da9f3db4eef0d3e99faf89aa3362 /llvm/lib | |
| parent | 7bce79a539b9445a7957b4c96e0cd88cbd231a18 (diff) | |
| download | bcm5719-llvm-ff69ffbf9a60edcda76f7420973c1eedb3e873b1.tar.gz bcm5719-llvm-ff69ffbf9a60edcda76f7420973c1eedb3e873b1.zip | |
[SelectionDAG] Add a check to getVectorShuffle to ensure that the only negative index we allow is -1.
llvm-svn: 316183
Diffstat (limited to 'llvm/lib')
| -rw-r--r-- | llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp index 0d999984cdb..4b0a5e07238 100644 --- a/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp +++ b/llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp @@ -1486,7 +1486,8 @@ SDValue SelectionDAG::getVectorShuffle(EVT VT, const SDLoc &dl, SDValue N1, // Validate that all indices in Mask are within the range of the elements // input to the shuffle. int NElts = Mask.size(); - assert(llvm::all_of(Mask, [&](int M) { return M < (NElts * 2); }) && + assert(llvm::all_of(Mask, + [&](int M) { return M < (NElts * 2) && M >= -1; }) && "Index out of range"); // Copy the mask so we can do any needed cleanup. |
