[Bug tree-optimization/38405] [4.4 Regression] (silent failure) handling bitfield in ternary

[bonzini at gnu dot org]

------- Comment #6 from bonzini at gnu dot org  2008-12-05 15:42 -------
Subject: Re:  [4.4 Regression] (silent failure)
 handling bitfield in ternary


> Folding statement: D.1241_5 = D.1242_4 != 0;
> Folded into: D.1241_5 = (int) D.1242_4;
> 
> which is wrong for
> 
>   <unnamed-signed:1> D.1242;
> 
> because it sign-extends.

So it's probably in fold-const.c and latent in 4.3 too...

Paolo


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38405