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Factor out the code for checking that all indices in a getelementptr are

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within the notional bounds of the static type of the getelementptr (which
is not the same as "inbounds") from GlobalOpt into a utility routine,
and use it in ConstantFold.cpp to check whether there are any mis-behaved
indices.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81478 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman
2009-09-10 23:37:55 +00:00
parent 83e3c4f9d7
commit e6992f728a
5 changed files with 54 additions and 15 deletions
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7
include/llvm/Constants.h
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@ -713,6 +713,13 @@ public:
/// and the getIndices() method may be used.
bool hasIndices() const;
/// @brief Return true if this is a getelementptr expression and all
/// the index operands are compile-time known integers within the
/// corresponding notional static array extents. Note that this is
/// not equivalant to, a subset of, or a superset of the "inbounds"
/// property.
bool isGEPWithNoNotionalOverIndexing() const;
/// Select constant expr
///
static Constant *getSelect(Constant *C, Constant *V1, Constant *V2) {