Commit Graph

2 Commits

Author SHA1 Message Date
Oliver Stannard e093bad472 [ARM] Use new assembler diags for ARM
This converts the ARM AsmParser to use the new assembly matcher error
reporting mechanism, which allows errors to be reported for multiple
instruction encodings when it is ambiguous which one the user intended
to use.

By itself this doesn't improve many error messages, because we don't have
diagnostic text for most operand types, but as we add that then this will allow
more of those diagnostic strings to be used when they are relevant.

Differential revision: https://reviews.llvm.org/D31530

llvm-svn: 314779
2017-10-03 10:26:11 +00:00
Oliver Stannard 2de8c16913 [ARM] Add ARMv8.2-A FP16 vector instructions
ARMv8.2-A adds 16-bit floating point versions of all existing SIMD
floating-point instructions. This is an optional extension, so all of
these instructions require the FeatureFullFP16 subtarget feature.

Note that VFP without SIMD is not a valid combination for any version of
ARMv8-A, but I have ensured that these instructions all depend on both
FeatureNEON and FeatureFullFP16 for consistency.

Differential Revision: http://reviews.llvm.org/D15039

llvm-svn: 255764
2015-12-16 12:37:39 +00:00