------- Comment #12 from steven at gcc dot gnu dot org 2010-04-27 20:25 -------
Created an attachment (id=20500)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20500&action=view)
proof-of-concept patch
This doesn't even include a Mach-O writer yet (except for the to be rewritten
COFF writer ;-) but this already makes LTO work for most of the test suite. For
lto.exp, C only:
Test Run By stevenb on Tue Apr 27 16:20:21 2010
Native configuration is x86_64-apple-darwin10.3.0
=== gcc tests ===
Schedule of variations:
unix
Running target unix
Using /sw/share/dejagnu/baseboards/unix.exp as board description file for
target.
Using /sw/share/dejagnu/config/unix.exp as generic interface file for target.
Using /Users/stevenb/gcc_trunk/gcc/testsuite/config/default.exp as
tool-and-target-specific interface file.
Running /Users/stevenb/gcc_trunk/gcc/testsuite/gcc.dg/lto/lto.exp ...
FAIL: gcc.dg/lto/20081201-2 c_lto_20081201-2_0.o-c_lto_20081201-2_1.o execute
-O3 -fwhopr
FAIL: gcc.dg/lto/20081222 c_lto_20081222_1.o assemble, -O0 -fwhopr
FAIL: gcc.dg/lto/20081222 c_lto_20081222_1.o assemble, -O2 -fwhopr
FAIL: gcc.dg/lto/20081222 c_lto_20081222_1.o assemble, -O0 -flto
FAIL: gcc.dg/lto/20081222 c_lto_20081222_1.o assemble, -O2 -flto
FAIL: gcc.dg/lto/20090914-2 c_lto_20090914-2_0.o assemble, -O0 -fwhopr
FAIL: gcc.dg/lto/20090914-2 c_lto_20090914-2_0.o assemble, -O2 -fwhopr
FAIL: gcc.dg/lto/20090914-2 c_lto_20090914-2_0.o assemble, -O0 -flto
FAIL: gcc.dg/lto/20090914-2 c_lto_20090914-2_0.o assemble, -O2 -flto
FAIL: gcc.dg/lto/20091216-1 c_lto_20091216-1_0.o-c_lto_20091216-1_0.o link
FAIL: gcc.dg/lto/20091216-1 c_lto_20091216-1_0.o-c_lto_20091216-1_0.o link
FAIL: gcc.dg/lto/20091216-1 c_lto_20091216-1_0.o-c_lto_20091216-1_0.o link
FAIL: gcc.dg/lto/20091216-1 c_lto_20091216-1_0.o-c_lto_20091216-1_0.o link
FAIL: gcc.dg/lto/20100423-2 c_lto_20100423-2_0.o-c_lto_20100423-2_1.o link
FAIL: gcc.dg/lto/20100423-2 c_lto_20100423-2_0.o-c_lto_20100423-2_1.o link
FAIL: gcc.dg/lto/20100423-2 c_lto_20100423-2_0.o-c_lto_20100423-2_1.o link
FAIL: gcc.dg/lto/20100423-2 c_lto_20100423-2_0.o-c_lto_20100423-2_1.o link
=== gcc Summary ===
# of expected passes 479
# of unexpected failures 17
# of unresolved testcases 24
# of unsupported tests 2
/Users/stevenb/lto_objdir/gcc/xgcc version 4.6.0 20100427 (experimental)
[trunk revision 158800] (GCC)
There's still work to be done:
1) Try with other languages
2) Make it with with checking enabled (shouldn't make a difference)
3) Produce distinct error message per failure mode
4) Implement the writer
n) ... fix whatever needs fixing ...
I plan to go through the list as time permits. Help welcome (as are patches).
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43729
