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| author | Dan Gohman <gohman@apple.com> | 2009-09-07 22:34:43 +0000 |
|---|---|---|
| committer | Dan Gohman <gohman@apple.com> | 2009-09-07 22:34:43 +0000 |
| commit | 4a7e6b7a15cea1f8ead4d1bb1cf2e3a39a339cb3 (patch) | |
| tree | b4b2b816edb261ac3d50622c8ebf616fa2be113c | |
| parent | fd54a898be08e8da12cb2e99dbb63015083940a3 (diff) | |
| download | external_llvm-4a7e6b7a15cea1f8ead4d1bb1cf2e3a39a339cb3.zip external_llvm-4a7e6b7a15cea1f8ead4d1bb1cf2e3a39a339cb3.tar.gz external_llvm-4a7e6b7a15cea1f8ead4d1bb1cf2e3a39a339cb3.tar.bz2 | |
Preserve the InBounds flag when evaluating a getelementptr instruction
into a getelementptr ConstantExpr.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@81162 91177308-0d34-0410-b5e6-96231b3b80d8
| -rw-r--r-- | lib/Transforms/IPO/GlobalOpt.cpp | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/lib/Transforms/IPO/GlobalOpt.cpp b/lib/Transforms/IPO/GlobalOpt.cpp index 594243c..293de6c 100644 --- a/lib/Transforms/IPO/GlobalOpt.cpp +++ b/lib/Transforms/IPO/GlobalOpt.cpp @@ -2227,8 +2227,9 @@ static bool EvaluateFunction(Function *F, Constant *&RetVal, for (User::op_iterator i = GEP->op_begin() + 1, e = GEP->op_end(); i != e; ++i) GEPOps.push_back(getVal(Values, *i)); - InstResult = - ConstantExpr::getGetElementPtr(P, &GEPOps[0], GEPOps.size()); + InstResult = cast<GEPOperator>(GEP)->isInBounds() ? + ConstantExpr::getInBoundsGetElementPtr(P, &GEPOps[0], GEPOps.size()) : + ConstantExpr::getGetElementPtr(P, &GEPOps[0], GEPOps.size()); } else if (LoadInst *LI = dyn_cast<LoadInst>(CurInst)) { if (LI->isVolatile()) return false; // no volatile accesses. InstResult = ComputeLoadResult(getVal(Values, LI->getOperand(0)), |