--- Comment #15 from dominiq at lps dot ens dot fr 2009-05-04 11:45 ---
This pr is fixed as long as *-apple-darwin9 is concerned. Due to comments #11
to
#13, I don't close it as fixed. If someone wants to keep this PR open, (s)he
should change subject, platform, and priority.
--
--- Comment #14 from matz at gcc dot gnu dot org 2009-04-29 17:37 ---
Subject: Bug 39929
Author: matz
Date: Wed Apr 29 17:36:21 2009
New Revision: 146982
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=146982
Log:
PR middle-end/39927
PR bootstrap/39929
*
--- Comment #10 from pinskia at gcc dot gnu dot org 2009-04-28 14:19
---
Subject: Bug 39929
Author: pinskia
Date: Tue Apr 28 14:19:00 2009
New Revision: 146894
URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=146894
Log:
2009-04-28 Andrew Pinski pins...@gmail.com
PR
--- Comment #11 from pinskia at gcc dot gnu dot org 2009-04-28 14:21
---
The darwin part of this bug report should have been fixed. The AIX bug was
unrelated to the darwin bug.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=39929
--- Comment #12 from jules at gcc dot gnu dot org 2009-04-28 22:31 ---
FYI: the above patch seems to have caused ARM Linux (cross) builds to break,
e.g.:
/scratch/julian/arm-mainline/src/gcc-mainline/libgcc/../gcc/config/arm/unwind-arm.c:589:
internal compiler error: Segmentation fault
--- Comment #13 from pinskia at gcc dot gnu dot org 2009-04-28 22:50
---
(In reply to comment #12)
Maybe there's some significant difference between the behaviour of
mips16_gp_pseudo_reg() and require_pic_register() which causes this, or maybe
MIPS is broken too?
Hmm,
ARM uses
--- Comment #2 from dje at gcc dot gnu dot org 2009-04-27 13:54 ---
This also fails on AIX. On AIX, the error appears as a failure while compiling
libobjc/linking.m.
A function in cgraphunit.c is being mis-compiled, possibly build_cdtor(). This
causes cgraph_build_static_cdtor() to
--- Comment #3 from dje at gcc dot gnu dot org 2009-04-27 14:19 ---
This probably is related to the promoted parameter problem that has appeared on
other architectures as well.
--
dje at gcc dot gnu dot org changed:
What|Removed |Added
--- Comment #5 from pinskia at gcc dot gnu dot org 2009-04-27 19:11 ---
(In reply to comment #4)
Here is a reduced testcase for the PPC-darwin failure:
float f(int a) { return a ? 1.0f : 2.0f ; }
This looks like how constants are expanded in PHIs, looking into it further.
--
--- Comment #6 from pinskia at gcc dot gnu dot org 2009-04-27 19:24 ---
This patch fixes the ppc-darwin failure:
Index: cfgexpand.c
===
--- cfgexpand.c (revision 146848)
+++ cfgexpand.c (working copy)
@@ -2503,11 +2503,11
--- Comment #7 from pinskia at gcc dot gnu dot org 2009-04-27 19:44 ---
This is the correct fix as in darwin.c we have:
/* Play games to avoid marking the function as needing pic if we
are being called as part of the cost-estimation process. */
if (current_ir_type
--- Comment #8 from matz at gcc dot gnu dot org 2009-04-28 00:37 ---
expand_phi_nodes can and will create RTL code so we need to register the RTL
CFG hooks before calling it.
Nope, that won't fly (for the moment). expand_phi_nodes also split edges
and it's necessary that this is
--- Comment #9 from pinskia at gcc dot gnu dot org 2009-04-28 01:04 ---
(In reply to comment #8)
If somebody can explain why it's
necessary to let the generated RTL code depend on the IR mode, we could
possibly find a good way around this limitation.
Because we don't want to mark
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