On Fri, 8 Mar 2024, Jakub Jelinek wrote:

> Hi!
> 
> When touching bb-reorder yesterday, I've noticed the checking assert
> doesn't actually check what it meant to.
> Because asm_noperands returns >= 0 for inline asm patterns (in that case
> number of input+output+label operands, so asm goto has at least one)
> and -1 if it isn't inline asm.
> 
> The following patch fixes the assertion to actually check that it is
> asm goto.
> 
> Bootstrapped/regtested on x86_64-linux and i686-linux, ok for trunk?

OK.

> 2024-03-08  Jakub Jelinek  <ja...@redhat.com>
> 
>       * bb-reorder.cc (fix_up_fall_thru_edges): Fix up checking assert,
>       asm_noperands < 0 means it is not asm goto too.
> 
> --- gcc/bb-reorder.cc.jj      2024-03-07 10:06:56.086285875 +0100
> +++ gcc/bb-reorder.cc 2024-03-07 10:11:44.745261926 +0100
> @@ -2024,7 +2024,8 @@ fix_up_fall_thru_edges (void)
>                            See PR108596.  */
>                         rtx_insn *j = BB_END (cur_bb);
>                         gcc_checking_assert (JUMP_P (j)
> -                                            && asm_noperands (PATTERN (j)));
> +                                            && (asm_noperands (PATTERN (j))
> +                                                > 0));
>                         edge e2 = find_edge (cur_bb, e->dest);
>                         if (e2)
>                           e2->flags |= EDGE_CROSSING;
> 
>       Jakub
> 
> 

-- 
Richard Biener <rguent...@suse.de>
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