[PATCH] RISC-V/libgcc: Reduce the size of RV64 millicode by 6 bytes

Rewrite code sequences throughout the 64-bit RISC-V `__riscv_save_*' routines replacing `li t1, -48', `li t1, -64', and `li t1, -80', instructions, which do not have a compressed encoding, respectively with `li t1, 3', `li t1, 4', and `li t1, 4', which do, and then adjusting the remaining code

Re: [PATCH] RISC-V/libgcc: Reduce the size of RV64 millicode by 6 bytes

IIRC, I didn't use this approach originally because I wanted to avoid the additional dynamic instruction. But I agree that code size is the more important metric for users of this feature. LGTM. On Thu, Jul 30, 2020 at 1:56 PM Maciej W. Rozycki via Gcc-patches wrote: > > Rewrite code sequences

Re: [PATCH] RISC-V/libgcc: Reduce the size of RV64 millicode by 6 bytes

On Thu, 30 Jul 2020, Andrew Waterman wrote: > IIRC, I didn't use this approach originally because I wanted to avoid > the additional dynamic instruction. But I agree that code size is the > more important metric for users of this feature. LGTM. Applied now, thanks for your review. Maciej