This series of patches adds or does things are needed for SVE
runtime offsets and sizes, but aren't directly related to offsets
and sizes themselves. It's a prerequisite to the main series that
I'll post later today.
Tested by compiling the testsuite before and after the series on:
aarch64-linux-gnu aarch64_be-linux-gnu alpha-linux-gnu arc-elf
arm-linux-gnueabi arm-linux-gnueabihf avr-elf bfin-elf c6x-elf
cr16-elf cris-elf epiphany-elf fr30-elf frv-linux-gnu ft32-elf
h8300-elf hppa64-hp-hpux11.23 ia64-linux-gnu i686-pc-linux-gnu
i686-apple-darwin iq2000-elf lm32-elf m32c-elf m32r-elf
m68k-linux-gnu mcore-elf microblaze-elf mipsel-linux-gnu
mipsisa64-linux-gnu mmix mn10300-elf moxie-rtems msp430-elf
nds32le-elf nios2-linux-gnu nvptx-none pdp11 powerpc-linux-gnuspe
powerpc-eabispe powerpc64-linux-gnu powerpc64le-linux-gnu
powerpc-ibm-aix7.0 riscv32-elf riscv64-elf rl78-elf rx-elf
s390-linux-gnu s390x-linux-gnu sh-linux-gnu sparc-linux-gnu
sparc64-linux-gnu sparc-wrs-vxworks spu-elf tilegx-elf tilepro-elf
xstormy16-elf v850-elf vax-netbsdelf visium-elf x86_64-darwin
x86_64-linux-gnu xtensa-elf
There were no differences besides the ones described in the
covering notes (except on powerpc-ibm-aix7.0, where symbol names
aren't stable).
Also tested normally on aarch64-linux-gnu, x86_64-linux-gnu and
powerpc64le-linux-gnu.
Thanks,
Richard
