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[SelectionDAG] Fix off by one in a compare in getOperationAction.

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If Op is equal to array_lengthof, the lookup would be out of bounds, but we were only checking for greater than. I suspect nothing ever passes in the equal value because its a sentinel to mark the end of the builtin opcodes and not a real opcode.

So really this fix is just so that the code looks right and makes sense.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@303840 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Craig Topper 2017-05-25 05:38:40 +00:00
parent 9f6280a85b
commit 5198106235
1 changed files with 1 additions and 1 deletions
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include/llvm/Target/TargetLowering.h
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@ -738,7 +738,7 @@ public:
if (VT.isExtended()) return Expand;
// If a target-specific SDNode requires legalization, require the target
// to provide custom legalization for it.
if (Op > array_lengthof(OpActions[0])) return Custom;
if (Op >= array_lengthof(OpActions[0])) return Custom;
return OpActions[(unsigned)VT.getSimpleVT().SimpleTy][Op];
}