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Use std::bitset for SubtargetFeatures

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Previously, subtarget features were a bitfield with the underlying type being uint64_t. 
Since several targets (X86 and ARM, in particular) have hit or were very close to hitting this bound, switching the features to use a bitset.
No functional change.

The first two times this was committed (r229831, r233055), it caused several buildbot failures. 
At least some of the ARM and MIPS ones were due to gcc/binutils issues, and should now be fixed.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@237234 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael Kuperstein
2015-05-13 08:27:08 +00:00
parent d5c1ae7e36
commit 1336daad86
37 changed files with 1068 additions and 1021 deletions
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utils/TableGen/InstrInfoEmitter.cpp
+4 -4
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@@ -549,15 +549,15 @@ void InstrInfoEmitter::emitRecord(const CodeGenInstruction &Inst, unsigned Num,
CodeGenTarget &Target = CDP.getTargetInfo();
if (Inst.HasComplexDeprecationPredicate)
// Emit a function pointer to the complex predicate method.
OS << ",0"
OS << ", { } "
<< ",&get" << Inst.DeprecatedReason << "DeprecationInfo";
else if (!Inst.DeprecatedReason.empty())
// Emit the Subtarget feature.
OS << "," << Target.getInstNamespace() << "::" << Inst.DeprecatedReason
<< ",nullptr";
OS << ", { " << Target.getInstNamespace() << "::" << Inst.DeprecatedReason
<< "} ,nullptr";
else
// Instruction isn't deprecated.
OS << ",0,nullptr";
OS << ", { } ,nullptr";
OS << " }, // Inst #" << Num << " = " << Inst.TheDef->getName() << "\n";
}