diff options
Diffstat (limited to 'llvm/lib/IR/ConstantFold.cpp')
| -rw-r--r-- | llvm/lib/IR/ConstantFold.cpp | 11 |
1 files changed, 5 insertions, 6 deletions
diff --git a/llvm/lib/IR/ConstantFold.cpp b/llvm/lib/IR/ConstantFold.cpp index 417e0d14eb7..587b7ce88a9 100644 --- a/llvm/lib/IR/ConstantFold.cpp +++ b/llvm/lib/IR/ConstantFold.cpp @@ -1495,9 +1495,8 @@ static ICmpInst::Predicate evaluateICmpRelation(Constant *V1, Constant *V2, "Surprising getelementptr!"); return isSigned ? ICmpInst::ICMP_SGT : ICmpInst::ICMP_UGT; } else { - // If they are different globals, we don't know what the value is, - // but they can't be equal. - return ICmpInst::ICMP_NE; + // If they are different globals, we don't know what the value is. + return ICmpInst::BAD_ICMP_PREDICATE; } } } else { @@ -1510,10 +1509,10 @@ static ICmpInst::Predicate evaluateICmpRelation(Constant *V1, Constant *V2, default: break; case Instruction::GetElementPtr: // By far the most common case to handle is when the base pointers are - // obviously to the same or different globals. + // obviously to the same global. if (isa<GlobalValue>(CE1Op0) && isa<GlobalValue>(CE2Op0)) { - if (CE1Op0 != CE2Op0) // Don't know relative ordering, but not equal - return ICmpInst::ICMP_NE; + if (CE1Op0 != CE2Op0) // Don't know relative ordering. + return ICmpInst::BAD_ICMP_PREDICATE; // Ok, we know that both getelementptr instructions are based on the // same global. From this, we can precisely determine the relative // ordering of the resultant pointers. |
