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Don't claim to support software emulation of short vectors if the FPSCR...
Jeffrey Lee authored 
Don't claim to support software emulation of short vectors if the FPSCR doesn't implement the LEN/STRIDE fields

Detail:
  In ARMv8, VFP short vectors are completely obsolete, to the point where implementations aren't even required to implement the FPSCR fields that control their operation.
  Our software short vector emulation relies on the hardware taking the undefined instruction vector when a VFP data processing op is executed with the LEN/STRIDE fields set to non-zero values; if those fields are hard-wired to zero then our emulation can never be run.
  File changes:
  - s/Module - Check whether FPSCR LEN+STRIDE fields are implemented before deciding whether to install the short vector support code
  - Test/test7,ffb - Refuse to run if short vectors aren't supported (whether hardware or software). Bail out early if we spot an FPSCR inconsistency.
Admin:
  Tested on Cortex-A53, Cortex-A7


Version 0.12. Tagged as 'VFPSupport-0_12'
07248a44
Name Last commit Last update
Doc Add initial version of VFPSupport module
Resources/UK Add VFPv2 support code
Test Don't claim to support software emulation of short vectors if the FPSCR doesn't implement the LEN/STRIDE fields
actions Add VFPv2 support code
c Add VFPv2 support code
cache Add VFPv2 support code
h Add VFPv2 support code
hdr Add support for Cortex-A7 & Cortex-A15 FPUs. Add short vector mode emulation for Cortex-A7, A9, A15
s Don't claim to support software emulation of short vectors if the FPSCR doesn't implement the LEN/STRIDE fields
softfloat Disable compiler bug workarounds when using latest compiler version
.gitattributes Add VFPv2 support code
LICENSE Move VFPSupport to 'mixed' folder
Licences Add VFPv2 support code
Makefile Add support for Cortex-A7 & Cortex-A15 FPUs. Add short vector mode emulation for Cortex-A7, A9, A15
MkClean,fd7 Add initial version of VFPSupport module
MkRom,fd7 Add initial version of VFPSupport module
MkSA,fd7 Add initial version of VFPSupport module
VersionASM Don't claim to support software emulation of short vectors if the FPSCR doesn't implement the LEN/STRIDE fields
VersionNum Don't claim to support software emulation of short vectors if the FPSCR doesn't implement the LEN/STRIDE fields