https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
--- Comment #12 from Xi Ruoyao ---
(In reply to David Binderman from comment #11)
> Created attachment 57310 [details]
> C source code
static uint32_t (safe_mul_func_uint32_t_u_u)(uint32_t ui1, uint32_t ui2 ) {
}
This thing is UB if you use
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
--- Comment #11 from David Binderman ---
Created attachment 57310
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=57310=edit
C source code
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
--- Comment #10 from David Binderman ---
(In reply to Sam James from comment #7)
> Can you try produce a testcase without UB please?
I have some partly reduced code that seems to have no UB.
cvise $ ~/gcc/results/bin/gcc -w
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
Xi Ruoyao changed:
What|Removed |Added
See Also|https://gcc.gnu.org/bugzill |
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
Xi Ruoyao changed:
What|Removed |Added
CC||xry111 at gcc dot gnu.org
See
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
--- Comment #7 from Sam James ---
Can you try produce a testcase without UB please?
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
--- Comment #6 from David Binderman ---
As expected:
trunk.20210101 $ git bisect good 35b5bb475375dba4
6decda1a35be5764101987c210b5693a0d914e58 is the first bad commit
commit 6decda1a35be5764101987c210b5693a0d914e58
Author: Richard Biener
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
David Binderman changed:
What|Removed |Added
CC||rguenth at gcc dot gnu.org
---
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
--- Comment #4 from David Binderman ---
(In reply to David Binderman from comment #3)
> (In reply to David Binderman from comment #2)
> > I have a bisection running too. I am trying out g:0f2e2080685e7509
>
> That seems bad. Trying
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
--- Comment #3 from David Binderman ---
(In reply to David Binderman from comment #2)
> I have a bisection running too. I am trying out g:0f2e2080685e7509
That seems bad. Trying g:328745607c5d403a.
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
--- Comment #2 from David Binderman ---
I have a bisection running too. I am trying out g:0f2e2080685e7509
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=113727
Sam James changed:
What|Removed |Added
CC||sjames at gcc dot gnu.org
--- Comment #1
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