Toma Tabacu b349e0f1f1 [mips] [IAS] Restore STI.FeatureBits in .set pop. ... Summary: Only restoring AvailableFeatures is not enough and will lead to buggy behaviour. For example, if we have a feature enabled and we ".set pop", the next time we try to ".set" that feature nothing will happen because the "!(STI.getFeatureBits()[Feature])" check will be false, because we didn't restore STI.FeatureBits. In order to fix this, we need to make MipsAssemblerOptions remember the STI.FeatureBits instead of the AvailableFeatures and then regenerate AvailableFeatures each time we ".set pop". This is because, AFAIK, there is no way to convert from AvailableFeatures back to STI.FeatureBits, but the reverse is possible by using ComputeAvailableFeatures(STI.FeatureBits). I also moved the updating of AssemblerOptions inside the "if" statement in setFeatureBits() and clearFeatureBits(), as there is no reason to update if nothing changes. Reviewers: dsanders, mkuper Reviewed By: dsanders Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D9156 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@239144 91177308-0d34-0410-b5e6-96231b3b80d8		2015-06-05 11:48:54 +00:00
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llvm	[mips] [IAS] Restore STI.FeatureBits in .set pop.	2015-06-05 11:48:54 +00:00
llvm-c	[C API] Add LLVMStructGetTypeAtIndex.	2015-06-04 09:09:53 +00:00