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[FunctionAttrs] Bulk remove attributes. NFC.

This commit is contained in:
Benjamin Kramer 2020-08-28 12:55:42 +02:00
parent d678e14c55
commit dce72dc870
1 changed files with 8 additions and 6 deletions
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14
llvm/lib/Transforms/IPO/FunctionAttrs.cpp
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@ -281,16 +281,18 @@ static bool addReadAttrs(const SCCNodeSet &SCCNodes, AARGetterT &&AARGetter) {
MadeChange = true;
// Clear out any existing attributes.
F->removeFnAttr(Attribute::ReadOnly);
F->removeFnAttr(Attribute::ReadNone);
F->removeFnAttr(Attribute::WriteOnly);
AttrBuilder AttrsToRemove;
AttrsToRemove.addAttribute(Attribute::ReadOnly);
AttrsToRemove.addAttribute(Attribute::ReadNone);
AttrsToRemove.addAttribute(Attribute::WriteOnly);
if (!WritesMemory && !ReadsMemory) {
// Clear out any "access range attributes" if readnone was deduced.
F->removeFnAttr(Attribute::ArgMemOnly);
F->removeFnAttr(Attribute::InaccessibleMemOnly);
F->removeFnAttr(Attribute::InaccessibleMemOrArgMemOnly);
AttrsToRemove.addAttribute(Attribute::ArgMemOnly);
AttrsToRemove.addAttribute(Attribute::InaccessibleMemOnly);
AttrsToRemove.addAttribute(Attribute::InaccessibleMemOrArgMemOnly);
}
F->removeAttributes(AttributeList::FunctionIndex, AttrsToRemove);
// Add in the new attribute.
if (WritesMemory && !ReadsMemory)