https://gcc.gnu.org/bugzilla/show_bug.cgi?id=123481
xuli1 at eswincomputing dot com <xuli1 at eswincomputing dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Version|14.0 |15.0
--- Comment #1 from xuli1 at eswincomputing dot com <xuli1 at eswincomputing
dot com> ---
riscv32-unknown-elf-gcc -march=rv32gc -mabi=ilp32d -O2 memcpy.c -S -o memcpy.s
A portion of the assembly code for `memcpy` is as follows(Note the first
`lw/sw` instruction):
.L7:
lw a2,32(s1)
lw t5,0(s1)
lw t4,4(s1)
lw t3,8(s1)
lw t1,12(s1)
lw a7,16(s1)
lw a6,20(s1)
lw a0,24(s1)
lw a1,28(s1)
addi a5,a5,36
sw a2,-4(a5)
sw t5,-36(a5)
sub a2,a4,a5
sw t4,-32(a5)
sw t3,-28(a5)
sw t1,-24(a5)
sw a7,-20(a5)
sw a6,-16(a5)
sw a0,-12(a5)
sw a1,-8(a5)
addi s1,s1,36
bgt a2,a3,.L7
