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[Bug tree-optimization/32544] New: gcc 4.2.1 miscompiles Mesa's r300 DRI driver with -ftree-vrp
- From: "bero at arklinux dot org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: 29 Jun 2007 08:14:48 -0000
- Subject: [Bug tree-optimization/32544] New: gcc 4.2.1 miscompiles Mesa's r300 DRI driver with -ftree-vrp
- Reply-to: gcc-bugzilla at gcc dot gnu dot org
Mesa's r300 DRI driver produces incorrect output (garbles the display) if
r300_state.c is compiled with -ftree-vrp (-O2 -fno-tree-vrp works fine; all
files except r300_state.c can be compiled with normal -O2).
--
Summary: gcc 4.2.1 miscompiles Mesa's r300 DRI driver with -
ftree-vrp
Product: gcc
Version: 4.2.1
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: bero at arklinux dot org
GCC build triplet: i586-pc-linux-gnu
GCC host triplet: i586-pc-linux-gnu
GCC target triplet: i586-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=32544