------- Additional Comments From hp at gcc dot gnu dot org 2005-03-18 01:46
-------
Also worth noting is that mmix-knuth-mmixware shares the ICE for 20011119-2.c
and has an other alias-related set of failures:
Running
/home/hp/combined/combined/gcc/testsuite/gcc.c-torture/compile/compile.exp ...
FAIL: gcc.c-torture/compile/20011119-2.c -O1 (test for excess errors)
FAIL: gcc.c-torture/compile/20040323-1.c -O0 (test for excess errors)
FAIL: gcc.c-torture/compile/20040323-1.c -O1 (test for excess errors)
FAIL: gcc.c-torture/compile/20040323-1.c -O2 (test for excess errors)
FAIL: gcc.c-torture/compile/20040323-1.c -O3 -fomit-frame-pointer (test for
excess errors)
FAIL: gcc.c-torture/compile/20040323-1.c -O3 -g (test for excess errors)
FAIL: gcc.c-torture/compile/20040323-1.c -Os (test for excess errors)
The gcc.log messages are:
20040323-1.c: Assembler messages:^M
20040323-1.c:35: Error: symbol `_rtld_local' is already defined
You might think this is a flaw in the MMIX port (not emitting proper pseudos
with .set semantics) but there *is* a problem, apparent in the 20040323-1.s for
cris-axis-elf at -O2:
...
.size __dl_start, .-__dl_start
.comm __rtld_local,4,2
.comm __rtld_global,4,2
.global __rtld_local
.set __rtld_local,__rtld_global
.global __rtld_local
.set __rtld_local,__rtld_global
The ".global" declaration are admittedly a flaw in the CRIS port (an artefact of
the once multi-object-format port) but the ".comm" for rtld_local (at -O2) seems
spurious as does the double .set of __rtld_local. For MMIX that is at -O2:
...
.comm _rtld_local,4,4 ! mmixal-incompatible COMMON
.comm _rtld_global,4,4 ! mmixal-incompatible COMMON
.global _rtld_local
_rtld_local IS _rtld_global
.global _rtld_local
_rtld_local IS _rtld_global
.data ! mmixal:= 8H LOC 9B
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=20524
