https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64113
Bug ID: 64113
Summary: Gcc on Alpha: Error: No lda !gpdisp!282 was found
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: mcree at orcon dot net.nz
Target: alpha-linux-gnu
gcc-4.9.x (and the trunk a couple of weeks ago) compiling certain software
packages (e.g. systemd) on an Alpha running Debian Alpha Linux results in
errors at the link stage such as:
{standard input}: Assembler messages:
{standard input}:5327: Error: No lda !gpdisp!282 was found
lto-wrapper: gcc returned 1 exit status
/usr/bin/ld: lto-wrapper failed
collect2: error: ld returned 1 exit status
These packages are successfully compiled with gcc-4.8.x.
I have not been able to construct a minimal source exhibiting the problem. But
because gcc-4.9.0 exhibits the failure and gcc-4.8.0 compiles the code
successfully I have been able to bisect to the first commit in gcc that
produces those errors, and that commit is:
commit c59258dcb37171743fdc6d393e767834aac9642b
Author: law <law@138bc75d-0d04-0410-961f-82ee72b054a4>
Date: Tue Nov 12 16:41:51 2013 +0000
* gimple-ssa-isolate-paths.c (check_loadstore): New function.
(insert_trap_and_remove_trailing_statements): New argument OP which
is the NULL pointer. Emit the trap after the load/store through
the NULL pointer. Simplify the RHS of a store through a NULL pointer
when trivial to do so.
(isolate_path): Corresponding changes.
(gimple_ssa_isolate_erroneous_path): Likewise.
* gcc.dg/tree-ssa/isolate-1.c: Update expected output.
* gcc.dg/tree-ssa/isolate-5.c: New test.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@204708
138bc75d-0d04-0410-961f-82ee72b054a4
