------- Comment #11 from amylaar at gcc dot gnu dot org 2009-03-03 09:40
-------
(In reply to comment #10)
> Mike, as far as I can tell, you originally (in 1997) added the code to
> rs6000.md which is now in rs6000.c:rs6000_emit_move and emits a USE
> for SYMBOL_REFS that are the source of a move. (Search for
> "Emit a USE operation").
I have tried to #ifdef 0 this code in rs6000_emit_move, and a regression
test on gcc40 (powerpc64-unknown-linux-gnu) shows only two differences,
i.e.
FAIL: gcc.c-torture/execute/va-arg-trap-1.c compilation, -O2 (internal
compile
r error)
FAIL: gcc.c-torture/execute/va-arg-trap-1.c compilation, -Os (internal
compile
r error)
from the baseline went away.
I've used revision 144485 for my baseline, and after determining that
a standard bootstrap did not work (probably a 32/64 bit ABI problem,
I didn't think it was worth the trouble to hand-bootstrap to 64 bit
considering this is probably not the OS we really need testing)
I built / tested with:
( make all-gcc all-target-libgcc all-target-libobjc all-target-libstdc++-v3
all-target-libgfortran;make check) > make.out 2>&1 &
baseline summaries:
=== gcc Summary ===
# of expected passes 52951
# of unexpected failures 23
# of expected failures 204
# of unresolved testcases 2
# of unsupported tests 615
=== g++ Summary ===
# of expected passes 19046
# of expected failures 140
# of unsupported tests 133
=== gfortran Summary ===
# of expected passes 29054
# of expected failures 11
# of unsupported tests 183
=== libstdc++ Summary ===
# of expected passes 5828
# of unexpected failures 1
# of unexpected successes 4
# of expected failures 80
# of unsupported tests 333
Patched summary:
=== gcc Summary ===
# of expected passes 52955
# of unexpected failures 21
# of expected failures 204
# of unsupported tests 615
; identical as baseline above for the other testsuites.
I think this should be tested on a power or powerpc AIX target.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39254
