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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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2
lib/Target/PowerPC/Disassembler/PPCDisassembler.cpp
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@ -387,7 +387,7 @@ DecodeStatus PPCDisassembler::getInstruction(MCInst &MI, uint64_t &Size,
uint32_t Inst =
(Bytes[0] << 24) | (Bytes[1] << 16) | (Bytes[2] << 8) | (Bytes[3] << 0);
if ((STI.getFeatureBits() & PPC::FeatureQPX) != 0) {
if (STI.getFeatureBits()[PPC::FeatureQPX]) {
DecodeStatus result =
decodeInstruction(DecoderTableQPX32, MI, Inst, Address, this, STI);
if (result != MCDisassembler::Fail)