https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89028
--- Comment #2 from H.J. Lu <hjl.tools at gmail dot com> ---
I am working on a patch to generate:
[hjl@gnu-hsw-1 pr89028]$ cat x.i
void
foo (char* restrict r, char* restrict a){
for (int i = 0; i < 8; i++){
r[i] += a[i];
}
}
[hjl@gnu-hsw-1 pr89028]$ make x.s
/export/build/gnu/tools-build/gcc-mmx/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/tools-build/gcc-mmx/build-x86_64-linux/gcc/ -O3 -S x.i
[hjl@gnu-hsw-1 pr89028]$ cat x.s
.file "x.i"
.text
.p2align 4
.globl foo
.type foo, @function
foo:
.LFB0:
.cfi_startproc
movq (%rdi), %xmm0
movq (%rsi), %xmm1
paddb %xmm1, %xmm0
movq %xmm0, (%rdi)
ret
.cfi_endproc
.LFE0:
.size foo, .-foo
.ident "GCC: (GNU) 9.0.1 20190124 (experimental)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-hsw-1 pr89028]$
