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Kill deprecated attribute API

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Summary:
This kill various depreacated API related to attribute :
 - The deprecated C API attribute based on LLVMAttribute enum.
 - The Raw attribute set format (planned to be removed in 4.0).

Reviewers: bkramer, echristo, mehdi_amini, void

Subscribers: mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D23039

llvm-svn: 286062
This commit is contained in:
Amaury Sechet
2016-11-06 07:48:46 +00:00
parent 364b59e266
commit 74084c44ca
7 changed files with 100 additions and 302 deletions
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96
llvm/lib/Bitcode/Reader/BitcodeReader.cpp
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@@ -1355,6 +1355,98 @@ StructType *BitcodeReader::createIdentifiedStructType(LLVMContext &Context) {
// Functions for parsing blocks from the bitcode file
//===----------------------------------------------------------------------===//
static uint64_t getRawAttributeMask(Attribute::AttrKind Val) {
switch (Val) {
case Attribute::EndAttrKinds:
llvm_unreachable("Synthetic enumerators which should never get here");
case Attribute::None: return 0;
case Attribute::ZExt: return 1 << 0;
case Attribute::SExt: return 1 << 1;
case Attribute::NoReturn: return 1 << 2;
case Attribute::InReg: return 1 << 3;
case Attribute::StructRet: return 1 << 4;
case Attribute::NoUnwind: return 1 << 5;
case Attribute::NoAlias: return 1 << 6;
case Attribute::ByVal: return 1 << 7;
case Attribute::Nest: return 1 << 8;
case Attribute::ReadNone: return 1 << 9;
case Attribute::ReadOnly: return 1 << 10;
case Attribute::NoInline: return 1 << 11;
case Attribute::AlwaysInline: return 1 << 12;
case Attribute::OptimizeForSize: return 1 << 13;
case Attribute::StackProtect: return 1 << 14;
case Attribute::StackProtectReq: return 1 << 15;
case Attribute::Alignment: return 31 << 16;
case Attribute::NoCapture: return 1 << 21;
case Attribute::NoRedZone: return 1 << 22;
case Attribute::NoImplicitFloat: return 1 << 23;
case Attribute::Naked: return 1 << 24;
case Attribute::InlineHint: return 1 << 25;
case Attribute::StackAlignment: return 7 << 26;
case Attribute::ReturnsTwice: return 1 << 29;
case Attribute::UWTable: return 1 << 30;
case Attribute::NonLazyBind: return 1U << 31;
case Attribute::SanitizeAddress: return 1ULL << 32;
case Attribute::MinSize: return 1ULL << 33;
case Attribute::NoDuplicate: return 1ULL << 34;
case Attribute::StackProtectStrong: return 1ULL << 35;
case Attribute::SanitizeThread: return 1ULL << 36;
case Attribute::SanitizeMemory: return 1ULL << 37;
case Attribute::NoBuiltin: return 1ULL << 38;
case Attribute::Returned: return 1ULL << 39;
case Attribute::Cold: return 1ULL << 40;
case Attribute::Builtin: return 1ULL << 41;
case Attribute::OptimizeNone: return 1ULL << 42;
case Attribute::InAlloca: return 1ULL << 43;
case Attribute::NonNull: return 1ULL << 44;
case Attribute::JumpTable: return 1ULL << 45;
case Attribute::Convergent: return 1ULL << 46;
case Attribute::SafeStack: return 1ULL << 47;
case Attribute::NoRecurse: return 1ULL << 48;
case Attribute::InaccessibleMemOnly: return 1ULL << 49;
case Attribute::InaccessibleMemOrArgMemOnly: return 1ULL << 50;
case Attribute::SwiftSelf: return 1ULL << 51;
case Attribute::SwiftError: return 1ULL << 52;
case Attribute::WriteOnly: return 1ULL << 53;
case Attribute::Dereferenceable:
llvm_unreachable("dereferenceable attribute not supported in raw format");
break;
case Attribute::DereferenceableOrNull:
llvm_unreachable("dereferenceable_or_null attribute not supported in raw "
"format");
break;
case Attribute::ArgMemOnly:
llvm_unreachable("argmemonly attribute not supported in raw format");
break;
case Attribute::AllocSize:
llvm_unreachable("allocsize not supported in raw format");
break;
}
llvm_unreachable("Unsupported attribute type");
}
static void addRawAttributeValue(AttrBuilder &B, uint64_t Val) {
if (!Val) return;
for (Attribute::AttrKind I = Attribute::None; I != Attribute::EndAttrKinds;
I = Attribute::AttrKind(I + 1)) {
if (I == Attribute::Dereferenceable ||
I == Attribute::DereferenceableOrNull ||
I == Attribute::ArgMemOnly ||
I == Attribute::AllocSize)
continue;
if (uint64_t A = (Val & getRawAttributeMask(I))) {
if (I == Attribute::Alignment)
B.addAlignmentAttr(1ULL << ((A >> 16) - 1));
else if (I == Attribute::StackAlignment)
B.addStackAlignmentAttr(1ULL << ((A >> 26)-1));
else
B.addAttribute(I);
}
}
}
/// \brief This fills an AttrBuilder object with the LLVM attributes that have
/// been decoded from the given integer. This function must stay in sync with
/// 'encodeLLVMAttributesForBitcode'.
@@ -1370,8 +1462,8 @@ static void decodeLLVMAttributesForBitcode(AttrBuilder &B,
if (Alignment)
B.addAlignmentAttr(Alignment);
B.addRawValue(((EncodedAttrs & (0xfffffULL << 32)) >> 11) |
(EncodedAttrs & 0xffff));
addRawAttributeValue(B, ((EncodedAttrs & (0xfffffULL << 32)) >> 11) |
(EncodedAttrs & 0xffff));
}
std::error_code BitcodeReader::parseAttributeBlock() {