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[Bug tree-optimization/38405] [4.4 Regression] (silent failure) handling bitfield in ternary
- From: "rguenth at gcc dot gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 5 Dec 2008 11:23:26 -0000
- Subject: [Bug tree-optimization/38405] [4.4 Regression] (silent failure) handling bitfield in ternary
- References: <bug-38405-17043@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #5 from rguenth at gcc dot gnu dot org 2008-12-05 11:23 -------
The error is likely
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.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Known to work| |4.3.2
Priority|P3 |P1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=38405