https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97822
--- Comment #15 from Uroš Bizjak <ubizjak at gmail dot com> ---
Hm, the generated code does not look right:
_Z1hv:
pushq %rbp
.seh_pushreg %rbp
pushq %rdi
.seh_pushreg %rdi
pushq %rsi
.seh_pushreg %rsi
subq $160, %rsp
.seh_stackalloc 160
andq $-16, %rsp
(*)-> leaq (%rsp), %rbp
.seh_setframe %rbp, 0
movups %xmm6, 0(%rbp)
.seh_savexmm %xmm6, 0
movups %xmm7, 16(%rbp)
.seh_savexmm %xmm7, 16
movups %xmm8, 32(%rbp)
.seh_savexmm %xmm8, 32
movups %xmm9, 48(%rbp)
.seh_savexmm %xmm9, 48
movups %xmm10, 64(%rbp)
.seh_savexmm %xmm10, 64
movups %xmm11, 80(%rbp)
.seh_savexmm %xmm11, 80
movups %xmm12, 96(%rbp)
.seh_savexmm %xmm12, 96
movups %xmm13, 112(%rbp)
.seh_savexmm %xmm13, 112
movups %xmm14, 128(%rbp)
.seh_savexmm %xmm14, 128
movups %xmm15, 144(%rbp)
.seh_savexmm %xmm15, 144
.seh_endprologue
call _Z1fv
nop
movaps (%rsp), %xmm6
movaps 16(%rsp), %xmm7
movaps 32(%rsp), %xmm8
movaps 48(%rsp), %xmm9
movaps 64(%rsp), %xmm10
movaps 80(%rsp), %xmm11
movaps 96(%rsp), %xmm12
movaps 112(%rsp), %xmm13
movaps 128(%rsp), %xmm14
movaps 144(%rsp), %xmm15
(**)-> leaq 160(%rbp), %rsp
popq %rsi
popq %rdi
popq %rbp
ret
Please note that at (*) RBP gets assigned the value of realigned RSP. At (**)
RSP gets assigned the value of RBP + 160, but RBP here holds the value of
realigned RSP. This will misaling the stack for follow-up POP instructions.
