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[Bug rtl-optimization/25890] [4.2 regression] testsuite failure: gcc.c-torture/compile/20051228-1.c
- From: "bonzini at gnu dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 23 Jan 2006 08:16:23 -0000
- Subject: [Bug rtl-optimization/25890] [4.2 regression] testsuite failure: gcc.c-torture/compile/20051228-1.c
- References: <bug-25890-507@http.gcc.gnu.org/bugzilla/>
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
------- Comment #3 from bonzini at gnu dot org 2006-01-23 08:16 -------
The bug here is that expand_compound_operation uses an unsigned HOST_WIDE_INT
for pos, while the argument to the "zero_extract" rtx's is a const_int, which
is signed. A negative value for zero_extract's position operand is at best
undefined, so it's probably easiest to make expand_compound_operation do
nothing in this case.
--
bonzini at gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at gcc dot gnu |bonzini at gnu dot org
|dot org |
Status|NEW |ASSIGNED
Last reconfirmed|2006-01-21 04:15:30 |2006-01-23 08:16:23
date| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25890