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This patch handling:
Enable parsing of raw encodings of system registers .
Allows UNPREDICTABLE sysregs to be decoded to a raw number in the same way that disasslib does, rather than llvm crashing.
Disassemble msr/mrs with unpredictable sysregs as SoftFail.
Fix regression due to SoftFailing some encodings.
Patch by Chris Ryder
Differential revision:https://reviews.llvm.org/D43374
llvm-svn: 326803
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Summary: Removed unwanted --check-prefix=CHECK from numerous unit tests.
Reviewers: t.p.northover, dblaikie, uweigand, MatzeB, tstellarAMD, mcrosier
Subscribers: mcrosier, dsanders
Differential Revision: http://reviews.llvm.org/D19279
llvm-svn: 266834
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This patch implements a few changes related to the Thumb2 M-class MSR instruction:
* better handling of unpredictable encodings,
* recognition of the _g and _nzcvqg variants by the asm parser only if the DSP
extension is available, preferred output of MSR APSR moves with the _<bits>
suffix for v7-M.
Patch by Petr Pavlu.
llvm-svn: 216874
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to assemble back.
Note: The current code in DecodeMSRMask() rejects the unpredictable A/R MSR mask '0000' with Fail. The code in the patch follows this style and rejects unpredictable M-class MSR masks also with Fail (instead of SoftFail). If SoftFail is preferred in this case then additional changes to ARMInstPrinter (to print non-symbolic masks) and ARMAsmParser (to parse non-symbolic masks) will be needed.
Patch by Petr Pavlu!
llvm-svn: 214505
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