[Bug c/12864] New: tree-ssa miscompiling libiberty
green at redhat dot com
gcc-bugzilla@gcc.gnu.org
Fri Oct 31 21:33:00 GMT 2003
PLEASE REPLY TO gcc-bugzilla@gcc.gnu.org ONLY, *NOT* gcc-bugs@gcc.gnu.org.
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12864
Summary: tree-ssa miscompiling libiberty
Product: gcc
Version: tree-ssa
Status: UNCONFIRMED
Severity: normal
Priority: P2
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: green at redhat dot com
CC: gcc-bugs at gcc dot gnu dot org
GCC build triplet: i686-pc-linux-gnu
GCC host triplet: i686-pc-linux-gnu
GCC target triplet: i686-pc-linux-gnu
A change that happened within the past day or so is causing gcc to miscompile
libiberty.
I discovered this while compiling an frv-elf toolchain with the tree-ssa native
Linux toolchain.
Check out uberbaum and configure/build an frv-elf gas with the tree-ssa native
tools. Then run "make check" on gas. All of the tests to recognize machine
instructions fail (although psuedo-ops are recognized).
Now make clean-libiberty and rebuild libiberty with a stable compiler. Then
relink your gas and try "make check" again. All tests should pass.
This is a very recent regression. I'll upload the diffs between the working and
non-working compilers.
AG
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