ARM64: Invalid decoding of constant for predicated instructions fadd, fsub, fsubr, fmul, fmax, fmaxnm, fmin, fminnm #2268
Description
ARM64 Example hex: 00805865
When using cstool, the output is:
fadd z0.h, p0/m, z0.h, #0.0
when it should be:
fadd z0.h, p0/m, z0.h, #0.5
There are more instructions (listed below) that have the incorrect interpretation of the i1 field. The decoder doesn't produce valid constants for those instructions.
FADD ., /M, .,
FMAX ., /M, .,
FMAXNM ., /M, .,
FMIN ., /M, .,
FMINNM ., /M, .,
FMUL ., /M, .,
FSUB ., /M, .,
FSUBR ., /M, .,