From: Alan Lawrence <alan.lawrence@arm.com>
To: Alexandre Oliva <aoliva@redhat.com>
Cc: Jeff Law <law@redhat.com>,
James Greenhalgh <James.Greenhalgh@arm.com>,
"H.J. Lu" <hjl.tools@gmail.com>,
Segher Boessenkool <segher@kernel.crashing.org>,
Richard Biener <richard.guenther@gmail.com>,
GCC Patches <gcc-patches@gcc.gnu.org>,
Christophe Lyon <christophe.lyon@linaro.org>,
David Edelsohn <dje.gcc@gmail.com>,
Eric Botcazou <ebotcazou@adacore.com>
Subject: Re: [PR64164] drop copyrename, integrate into expand
Date: Wed, 02 Sep 2015 17:09:00 -0000 [thread overview]
Message-ID: <55E72D4C.40705@arm.com> (raw)
In-Reply-To: <or37zlpujd.fsf@livre.home>
On 14/08/15 19:57, Alexandre Oliva wrote:
>
> I'm glad it appears to be working to everyone's
> satisfaction now. I've just committed it as r226901, with only a
> context adjustment to account for a change in use_register_for_decl in
> function.c. /me crosses fingers :-)
>
> Here's the patch as checked in:
One more failure to report, I'm afraid. On AArch64 Bigendian,
aapcs64/func-ret-4.c ICEs in simplify_subreg (line refs here are from r227348):
In file included from /work/alalaw01/src/gcc/gcc/testsuite/gcc.target/aarch64/aa
pcs64/func-ret-4.c:14:0:
/work/alalaw01/src/gcc/gcc/testsuite/gcc.target/aarch64/aapcs64/func-ret-4.c: In
function 'func_return_val_10':
/work/alalaw01/src/gcc/gcc/testsuite/gcc.target/aarch64/aapcs64/abitest-2.h:12:2
4: internal compiler error: in simplify_subreg, at simplify-rtx.c:5808
/work/alalaw01/src/gcc/gcc/testsuite/gcc.target/aarch64/aapcs64/abitest-2.h:13:4
0: note: in definition of macro 'FUNC_NAME_COMBINE'
/work/alalaw01/src/gcc/gcc/testsuite/gcc.target/aarch64/aapcs64/abitest-2.h:15:2
7: note: in expansion of macro 'FUNC_NAME_1'
/work/alalaw01/src/gcc/gcc/testsuite/gcc.target/aarch64/aapcs64/abitest-2.h:15:3
9: note: in expansion of macro 'FUNC_BASE_NAME'
/work/alalaw01/src/gcc/gcc/testsuite/gcc.target/aarch64/aapcs64/abitest-2.h:69:3
3: note: in expansion of macro 'FUNC_NAME'
/work/alalaw01/src/gcc/gcc/testsuite/gcc.target/aarch64/aapcs64/func-ret-4.c:23:
1: note: in expansion of macro 'FUNC_VAL_CHECK'
0xa7ba44 simplify_subreg(machine_mode, rtx_def*, machine_mode, unsigned int)
/work/alalaw01/src/gcc/gcc/simplify-rtx.c:5808
0xa7c4ef simplify_gen_subreg(machine_mode, rtx_def*, machine_mode, unsigned int)
/work/alalaw01/src/gcc/gcc/simplify-rtx.c:6031
0x7ad097 operand_subword(rtx_def*, unsigned int, int, machine_mode)
/work/alalaw01/src/gcc/gcc/emit-rtl.c:1611
0x7def4e move_block_from_reg(int, rtx_def*, int)
/work/alalaw01/src/gcc/gcc/expr.c:1536
0x83a494 assign_parm_setup_block
/work/alalaw01/src/gcc/gcc/function.c:3117
0x841a43 assign_parms
/work/alalaw01/src/gcc/gcc/function.c:3857
0x842ffa expand_function_start(tree_node*)
/work/alalaw01/src/gcc/gcc/function.c:5286
0x6e7496 execute
/work/alalaw01/src/gcc/gcc/cfgexpand.c:6203
Please submit a full bug report,
with preprocessed source if appropriate.
Please include the complete backtrace with any bug report.
See <http://gcc.gnu.org/bugs.html> for instructions.
FAIL: gcc.target/aarch64/aapcs64/func-ret-4.c compilation, -O1 (internal
compiler error)
Also at -O2, -O3 -g, -Og -g, -Os. -O0 is OK.
simplify_subreg is called with outermode=DImode, op=
(concat:CHI (reg:HI 76 [ t ])
(reg:HI 77 [ t+2 ]))
innermode = BLKmode (which violates the assertion), byte=0.
move_block_from_reg (in expr.c) calls operand_subword(x, i, 1, BLKmode), here
i=0 and x is the concat:CHI above, and operand_subword doesn't handle that case
(well, it passes it onto simplify_subreg).
In assign_parm_setup_block, I see 'mem = validize_mem (copy_rtx (stack_parm))'
where stack_parm is again the same concat:CHI.
This should be easily reproducible with a stage 1 compiler (aarch64_be-none-elf).
--Alan
next prev parent reply other threads:[~2015-09-02 17:09 UTC|newest]
Thread overview: 127+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-03-27 18:04 Alexandre Oliva
2015-03-27 18:11 ` Alexandre Oliva
2015-03-28 19:22 ` Alexandre Oliva
2015-03-31 5:11 ` Jeff Law
2015-04-03 13:17 ` Alexandre Oliva
2015-04-06 16:08 ` Jeff Law
2015-04-24 1:56 ` Alexandre Oliva
2015-04-27 11:39 ` Richard Biener
2015-06-06 5:12 ` Alexandre Oliva
2015-06-08 8:16 ` Richard Biener
2015-06-09 8:58 ` Christophe Lyon
2015-06-10 0:28 ` Alexandre Oliva
2015-06-10 13:36 ` Richard Biener
2015-07-16 7:58 ` Alexandre Oliva
2015-07-16 8:50 ` Richard Biener
2015-07-16 21:33 ` Alexandre Oliva
2015-07-18 8:26 ` Alexandre Oliva
2015-07-21 13:25 ` Richard Biener
2015-07-22 17:13 ` Alexandre Oliva
2015-07-22 17:43 ` Alexandre Oliva
2015-07-23 11:04 ` Richard Biener
2015-07-23 15:42 ` Alexandre Oliva
2015-07-23 20:35 ` Segher Boessenkool
2015-07-23 21:24 ` H.J. Lu
2015-07-23 22:11 ` H.J. Lu
2015-07-24 1:31 ` David Edelsohn
2015-07-24 5:08 ` H.J. Lu
2015-07-24 9:26 ` Richard Biener
2015-07-24 12:50 ` H.J. Lu
2015-07-24 20:20 ` Alexandre Oliva
2015-07-25 2:37 ` David Edelsohn
2015-07-27 22:16 ` Alexandre Oliva
2015-07-27 22:31 ` H.J. Lu
2015-07-24 18:51 ` Alexandre Oliva
2015-07-24 19:12 ` H.J. Lu
2015-07-24 19:31 ` David Edelsohn
2015-07-24 20:43 ` Alexandre Oliva
2015-07-24 20:47 ` Alexandre Oliva
2015-07-24 21:53 ` H.J. Lu
2015-07-25 7:17 ` Richard Biener
2015-07-29 20:52 ` Alexandre Oliva
2015-07-29 21:06 ` H.J. Lu
2015-07-30 17:47 ` H.J. Lu
2015-08-03 23:46 ` Alexandre Oliva
2015-08-04 9:48 ` Richard Biener
2015-08-05 0:39 ` Alexandre Oliva
2015-08-05 9:14 ` Richard Biener
2015-08-05 23:03 ` Alexandre Oliva
2015-08-10 8:24 ` James Greenhalgh
2015-08-10 15:14 ` Jeff Law
2015-08-11 4:53 ` Patrick Marlier
2015-08-14 19:03 ` Alexandre Oliva
2015-08-15 8:57 ` Andreas Schwab
2015-08-16 13:00 ` Alexandre Oliva
[not found] ` <m2k2sv8s21.fsf@linux-m68k.org>
2015-08-17 5:05 ` Alexandre Oliva
2015-08-17 9:29 ` Kyrill Tkachov
2015-08-17 16:23 ` Andrew Pinski
2015-08-18 16:18 ` Kyrill Tkachov
2015-08-16 16:42 ` Andreas Schwab
2015-08-17 2:57 ` Alexandre Oliva
2015-08-17 8:23 ` Andreas Schwab
2015-08-17 9:21 ` Andreas Schwab
2015-08-17 11:58 ` Alexandre Oliva
2015-08-17 7:48 ` Christophe Lyon
2015-08-17 12:43 ` Alexandre Oliva
2015-08-17 13:39 ` Christophe Lyon
2015-08-18 6:53 ` Alexandre Oliva
2015-08-19 6:50 ` Alexandre Oliva
2015-08-19 10:17 ` Richard Biener
2015-08-19 13:35 ` Andreas Schwab
2015-08-19 13:45 ` Andreas Schwab
2015-08-19 17:48 ` Alexandre Oliva
2015-08-20 1:44 ` Alexandre Oliva
2015-08-20 17:03 ` Jeff Law
2015-08-21 7:57 ` Alexandre Oliva
2015-08-21 8:38 ` Richard Biener
2015-08-21 12:17 ` Andreas Schwab
2015-08-21 8:11 ` Alexandre Oliva
2015-08-21 8:37 ` Richard Biener
2015-09-02 17:09 ` Alan Lawrence [this message]
2015-09-02 22:34 ` Alexandre Oliva
2015-09-03 10:58 ` Alan Lawrence
2015-09-18 15:49 ` Alan Lawrence
2015-09-23 20:44 ` Alexandre Oliva
2015-09-25 11:39 ` Richard Biener
2015-10-09 5:26 ` [PR67828] don't unswitch loops on undefined SSA values (was: Re: [PR64164] drop copyrename, integrate into expand) Alexandre Oliva
2015-10-09 9:35 ` Richard Biener
2015-10-09 5:36 ` [PR67766] reorder return value copying from PARALLELs and CONCATs " Alexandre Oliva
2015-10-09 7:33 ` [PR67891] drop is_gimple_reg test from set_parm_rtl (was: [PR67766] reorder return value copying from PARALLELs and CONCATs) Alexandre Oliva
2015-10-09 9:40 ` Richard Biener
2015-10-10 13:20 ` [PR67891] drop is_gimple_reg test from set_parm_rtl Alexandre Oliva
2015-10-12 10:22 ` Richard Biener
2015-10-14 3:25 ` Alexandre Oliva
2015-10-14 9:28 ` Richard Biener
2015-11-03 1:11 ` Alexandre Oliva
2015-11-03 3:14 ` Jeff Law
2015-11-03 4:29 ` Alexandre Oliva
2022-10-17 12:08 ` Tag 'gcc/gimple-expr.cc:mark_addressable_2' as 'static' (was: [PR67891] drop is_gimple_reg test from set_parm_rtl) Thomas Schwinge
2015-10-09 9:36 ` [PR67766] reorder return value copying from PARALLELs and CONCATs (was: Re: [PR64164] drop copyrename, integrate into expand) Richard Biener
2015-09-29 11:31 ` [PR64164] drop copyrename, integrate into expand Szabolcs Nagy
2015-10-07 22:37 ` Alexandre Oliva
2015-10-08 10:00 ` Richard Biener
2015-10-09 21:10 ` Jeff Law
2015-11-05 5:09 ` Alexandre Oliva
2015-11-05 13:44 ` Richard Biener
2015-11-10 15:31 ` Alan Lawrence
2015-11-10 22:59 ` Alexandre Oliva
2015-11-10 23:43 ` Jeff Law
2015-11-11 18:10 ` Alexandre Oliva
2015-11-13 6:33 ` Jeff Law
2015-11-17 0:07 ` Alexandre Oliva
2015-11-24 5:41 ` Jeff Law
2015-07-24 18:21 ` Alexandre Oliva
2015-07-29 20:32 ` Alexandre Oliva
2015-04-29 3:51 ` Jeff Law
2015-03-31 6:55 ` Steven Bosscher
2015-03-31 13:30 ` Richard Biener
2015-03-31 14:06 ` Richard Biener
2015-04-03 13:30 ` Alexandre Oliva
2015-04-06 15:57 ` Jeff Law
2015-12-04 12:45 ` Dominik Vogt
2015-06-09 16:19 David Edelsohn
2015-06-09 18:36 ` Alexandre Oliva
2015-06-09 20:24 ` Alexandre Oliva
2015-06-09 20:59 ` Jakub Jelinek
2015-06-09 21:36 ` Eric Botcazou
2015-06-09 21:38 ` David Edelsohn
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