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| author | Bob Wilson <bob.wilson@apple.com> | 2010-08-16 23:37:17 +0000 |
|---|---|---|
| committer | Bob Wilson <bob.wilson@apple.com> | 2010-08-16 23:37:17 +0000 |
| commit | ca5e47d3f84dcf3dfbc6706bf1041e7029f3ce0a (patch) | |
| tree | d416bc84464e6b5f7b29f4a8d8e12c12d1071e63 | |
| parent | fecdea0bf77599038eb368db3bc6a38a14900308 (diff) | |
Ignore undef shuffle indices when checking for a VTRN shuffle. Radar 8290937.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@111208 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Target/ARM/ARMISelLowering.cpp | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/Target/ARM/ARMISelLowering.cpp b/lib/Target/ARM/ARMISelLowering.cpp index 5a03a07dcc..b05c5dd259 100644 --- a/lib/Target/ARM/ARMISelLowering.cpp +++ b/lib/Target/ARM/ARMISelLowering.cpp @@ -3229,6 +3229,7 @@ static bool isVTRN_v_undef_Mask(const SmallVectorImpl<int> &M, EVT VT, unsigned NumElts = VT.getVectorNumElements(); WhichResult = (M[0] == 0 ? 0 : 1); for (unsigned i = 0; i < NumElts; i += 2) { + if (M[i] < 0) continue; if ((unsigned) M[i] != i + WhichResult || (unsigned) M[i+1] != i + WhichResult) return false; |