https://gcc.gnu.org/bugzilla/show_bug.cgi?id=124697
--- Comment #3 from H.J. Lu <hjl.tools at gmail dot com> ---
[hjl@gnu-tgl-3 pr124697]$ cat foo.c
typedef double v4df __attribute__((vector_size(32)));
typedef double v2df __attribute__((vector_size(16)));
typedef struct {
v2df a[2];
} c __attribute__((aligned(32)));
extern v4df d;
void
e (float a1, float a2, float a3, float a4, float a5, float a6, c f)
{
d = *(v4df *) &f;
}
[hjl@gnu-tgl-3 pr124697]$ make foo.s
/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/xgcc
-B/export/build/gnu/tools-build/gcc-gitlab-debug/build-x86_64-linux/gcc/ -O2
-march=x86-64-v4 -S foo.c
[hjl@gnu-tgl-3 pr124697]$ cat foo.s
.file "foo.c"
.text
.p2align 4
.globl e
.type e, @function
e:
.LFB0:
.cfi_startproc
pushq %rbp
.cfi_def_cfa_offset 16
.cfi_offset 6, -16
movq %rsp, %rbp
.cfi_def_cfa_register 6
vmovapd 16(%rbp), %ymm0 <<<<<<< f is aligned at 16 bytes.
vmovapd %ymm0, d(%rip)
vzeroupper
popq %rbp
.cfi_def_cfa 7, 8
ret
.cfi_endproc
.LFE0:
.size e, .-e
.ident "GCC: (GNU) 16.0.1 20260331 (experimental)"
.section .note.GNU-stack,"",@progbits
[hjl@gnu-tgl-3 pr124697]$
