https://llvm.org/bugs/show_bug.cgi?id=27520
Bug ID: 27520
Summary: on handling Instruction::AddrSpaceCast in
stripPointerCastsAndOffsets() at Value.cpp
Product: new-bugs
Version: trunk
Hardware: All
OS: All
Status: NEW
Severity: normal
Priority: P
Component: new bugs
Assignee: unassignedb...@nondot.org
Reporter: jack....@intel.com
CC: llvm-bugs@lists.llvm.org
Classification: Unclassified
Function stripPointerCastsAndOffsets() at Value.cpp will handle the
AddrSpaceCast case as follows:
static Value *stripPointerCastsAndOffsets(Value *V) {
...
} else if (Operator::getOpcode(V) == Instruction::BitCast ||
Operator::getOpcode(V) == Instruction::AddrSpaceCast) {
V = cast<Operator>(V)->getOperand(0);
} else if (GlobalAlias *GA = dyn_cast<GlobalAlias>(V)) {
...
This does not look correct, since according to LLVM langref, "The
‘addrspacecast‘ instruction converts the pointer value ptrval to type pty2. It
can be a no-op cast or a complex value modification, depending on the target
and the address space pair."
Should we remove the check of Instruction::AddrSpaceCast here?
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