https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106635
--- Comment #4 from Xiaoguang <xgchenshy at 126 dot com> ---
(In reply to Xiaoguang from comment #2)
> (In reply to Richard Biener from comment #1)
> > Can you provide preprocessed source of the whole translation unit so the
> > testcase is compilable?
>
> Sure, please see below complete code.
>
> void CWLCollectReadRegData(u32* dst,u16 reg_start, u32 reg_length,u32*
> total_length, addr_t status_data_base_addr)
> {
> u32 data_length=0;
> {
> //opcode
> *dst++ = (OPCODE_RREG<<27)|(reg_length<<16)|(reg_start*4);
> data_length++;
>
> //data
> volatile u32 temp_32 = (u32)status_data_base_addr; // fix compiler
> optimization -O2 bug: stur x4, [x0, #4]
> *dst++ = temp_32;
> data_length++;
>
> if(sizeof(addr_t) == 8) {
> *dst++ = (u32)(((u64)status_data_base_addr)>>32);
> data_length++;
> } else {
> *dst++ = 0;
> data_length++;
> }
> //alignment
> *dst = 0;
> data_length++;
>
> *total_length = data_length;
> }
> }
please ignore this, we added volatile to avoid such issue
