https://gcc.gnu.org/bugzilla/show_bug.cgi?id=102892
jiawei <jiawei at iscas dot ac.cn> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |jiawei at iscas dot ac.cn
--- Comment #11 from jiawei <jiawei at iscas dot ac.cn> ---
(In reply to Eric Botcazou from comment #8)
I use the RISC-V target test and get the same result, and link fail with
'undefined reference to `foo`'.
> The test fails (to link) on SPARC though, here's the .optimized dump at -O3:
>
> ;; Function main (main, funcdef_no=0, decl_uid=1488, cgraph_uid=1,
> symbol_order=1) (executed once)
>
> Removing basic block 8
> Removing basic block 9
> Removing basic block 10
> Removing basic block 11
> int main ()
> {
> unsigned int ivtmp.8;
> long int a;
> long int _1;
> void * _2;
> unsigned int _17;
>
> <bb 2> [local count: 44232128]:
> if (a_9(D) != 1)
> goto <bb 6>; [89.00%]
> else
> goto <bb 7>; [11.00%]
>
> <bb 3> [local count: 715863673]:
> # ivtmp.8_23 = PHI <ivtmp.8_24(5), ivtmp.8_7(6)>
> bar ();
> _2 = (void *) ivtmp.8_23;
> _1 = MEM[(long int *)_2];
> if (_1 == 1)
> goto <bb 4>; [20.24%]
> else
> goto <bb 5>; [79.76%]
>
> <bb 4> [local count: 144890806]:
> foo ();
>
> <bb 5> [local count: 715863674]:
> ivtmp.8_24 = ivtmp.8_23 + 4;
> if (_17 != ivtmp.8_24)
> goto <bb 3>; [66.67%]
> else
> goto <bb 7>; [33.33%]
>
> <bb 6> [local count: 238597362]:
> ivtmp.8_7 = (unsigned int) &b;
> _17 = ivtmp.8_7 + 8;
> goto <bb 3>; [100.00%]
>
> <bb 7> [local count: 44232131]:
> return 0;
> }
