Hi,
The following testcase reduced from Python's mathmodule.c is miscompiled with
gcc 3.3-hammer at -O2 and FSF gcc version 4.0.3 20051103 at -O2
-fno-unit-at-a-time as otherwise gcc is smart enough to optimize out the
function descriptor and the problem disappears.
Looking at the generated assembly, the second func() TOC is loaded too early
and what is to contain 2.0 is garbaged (value loaded from elsewhere).
--
Summary: Python miscompilation - TOC reload
Product: gcc
Version: 4.0.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: gbeauchesne at mandriva dot com
GCC build triplet: powerpc64-unknown-linux-gnu
GCC host triplet: powerpc64-unknown-linux-gnu
GCC target triplet: powerpc64-unknown-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24779
