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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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10
lib/Target/Mips/Disassembler/MipsDisassembler.cpp
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@@ -36,16 +36,16 @@ class MipsDisassembler : public MCDisassembler {
public:
MipsDisassembler(const MCSubtargetInfo &STI, MCContext &Ctx, bool IsBigEndian)
: MCDisassembler(STI, Ctx),
IsMicroMips(STI.getFeatureBits() & Mips::FeatureMicroMips),
IsMicroMips(STI.getFeatureBits()[Mips::FeatureMicroMips]),
IsBigEndian(IsBigEndian) {}
bool hasMips3() const { return STI.getFeatureBits() & Mips::FeatureMips3; }
bool hasMips32() const { return STI.getFeatureBits() & Mips::FeatureMips32; }
bool hasMips3() const { return STI.getFeatureBits()[Mips::FeatureMips3]; }
bool hasMips32() const { return STI.getFeatureBits()[Mips::FeatureMips32]; }
bool hasMips32r6() const {
return STI.getFeatureBits() & Mips::FeatureMips32r6;
return STI.getFeatureBits()[Mips::FeatureMips32r6];
}
bool isGP64() const { return STI.getFeatureBits() & Mips::FeatureGP64Bit; }
bool isGP64() const { return STI.getFeatureBits()[Mips::FeatureGP64Bit]; }
bool hasCOP3() const {
// Only present in MIPS-I and MIPS-II