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* [Bug rtl-optimization/42295] New: ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns
@ 2009-12-05 1:55 zsojka at seznam dot cz
2009-12-05 1:56 ` [Bug rtl-optimization/42295] " zsojka at seznam dot cz
` (4 more replies)
0 siblings, 5 replies; 10+ messages in thread
From: zsojka at seznam dot cz @ 2009-12-05 1:55 UTC (permalink / raw)
To: gcc-bugs
Command line:
for 4.5/trunk:
g++-4.5 -O1 -fschedule-insns -fselective-scheduling -o tmp.o testcase-manual.ii
-c
for 4.4 can be used as well:
g++-4.4 -O1 -fschedule-insns -o tmp.o testcase-manual.ii -c
Gives (trunk r154953):
testcase-manual.ii: In function ‘void testsum(ms*)’:
testcase-manual.ii:20:1: error: unable to find a register to spill in class
‘AREG’
testcase-manual.ii:20:1: error: this is the insn:
(insn 26 24 27 2 testcase-manual.ii:16 (parallel [
(set (reg:SI 5 di [83])
(div:SI (reg:SI 5 di [orig:82 a_2(D)->n ] [82])
(reg:SI 2 cx [85])))
(set (reg:SI 1 dx [84])
(mod:SI (reg:SI 5 di [orig:82 a_2(D)->n ] [82])
(reg:SI 2 cx [85])))
(clobber (reg:CC 17 flags))
]) 352 {*divmodsi4} (expr_list:REG_DEAD (reg:SI 2 cx [85])
(expr_list:REG_DEAD (reg:SI 5 di [orig:82 a_2(D)->n ] [82])
(expr_list:REG_UNUSED (reg:SI 1 dx [84])
(expr_list:REG_UNUSED (reg:CC 17 flags)
(nil))))))
testcase-manual.ii:20:1: internal compiler error: in spill_failure, at
reload1.c:2141
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Tested versions:
trunk r154953 crash
trunk r154886 crash
trunk r154830 crash
trunk r153685 crash
4.4 r154975 crash
4.4 r154724 crash
4.4 r154216 crash
4.4.2 (gentoo) crash
4.3.4 4.2.4 4.1.2 3.4.6 3.3.6 (all gentoo) OK
Full output:
$ /mnt/svn/gcc-trunk/binary-154953-lto/bin/g++ -O1 -fschedule-insns
-fselective-scheduling -o tmp.o testcase-manual.ii -c -v
Using built-in specs.
COLLECT_GCC=/mnt/svn/gcc-trunk/binary-154953-lto/bin/g++
COLLECT_LTO_WRAPPER=/mnt/svn/gcc-trunk/binary-154953-lto/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --enable-languages=c,c++,lto
--prefix=/mnt/svn/gcc-trunk/binary-154953-lto
Thread model: posix
gcc version 4.5.0 20091203 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-O1' '-fschedule-insns' '-fselective-scheduling' '-o'
'tmp.o' '-c' '-v' '-shared-libgcc' '-mtune=generic'
/mnt/svn/gcc-trunk/binary-154953-lto/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/cc1plus
-fpreprocessed testcase-manual.ii -quiet -dumpbase testcase-manual.ii
-mtune=generic -auxbase-strip tmp.o -O1 -version -fschedule-insns
-fselective-scheduling -o /tmp/ccpvVv5N.s
GNU C++ (GCC) version 4.5.0 20091203 (experimental) (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.5.0 20091203 (experimental), GMP version
4.3.1, MPFR version 2.4.1-p5, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C++ (GCC) version 4.5.0 20091203 (experimental) (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.5.0 20091203 (experimental), GMP version
4.3.1, MPFR version 2.4.1-p5, MPC version 0.8
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 4b09d9924550b4f9676aafda3b16134c
testcase-manual.ii: In function ‘void testsum(ms*)’:
testcase-manual.ii:20:1: error: unable to find a register to spill in class
‘AREG’
testcase-manual.ii:20:1: error: this is the insn:
(insn 26 24 27 2 testcase-manual.ii:16 (parallel [
(set (reg:SI 5 di [83])
(div:SI (reg:SI 5 di [orig:82 a_2(D)->n ] [82])
(reg:SI 2 cx [85])))
(set (reg:SI 1 dx [84])
(mod:SI (reg:SI 5 di [orig:82 a_2(D)->n ] [82])
(reg:SI 2 cx [85])))
(clobber (reg:CC 17 flags))
]) 352 {*divmodsi4} (expr_list:REG_DEAD (reg:SI 2 cx [85])
(expr_list:REG_DEAD (reg:SI 5 di [orig:82 a_2(D)->n ] [82])
(expr_list:REG_UNUSED (reg:SI 1 dx [84])
(expr_list:REG_UNUSED (reg:CC 17 flags)
(nil))))))
testcase-manual.ii:20:1: internal compiler error: in spill_failure, at
reload1.c:2141
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
--
Summary: ICE: 'error: unable to find a register to spill in class
"AREG"' with -fschedule-insns
Product: gcc
Version: 4.4.3
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: rtl-optimization
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: zsojka at seznam dot cz
GCC host triplet: x86_64-pc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug rtl-optimization/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns
2009-12-05 1:55 [Bug rtl-optimization/42295] New: ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns zsojka at seznam dot cz
@ 2009-12-05 1:56 ` zsojka at seznam dot cz
2009-12-07 11:17 ` [Bug target/42295] " rguenth at gcc dot gnu dot org
` (3 subsequent siblings)
4 siblings, 0 replies; 10+ messages in thread
From: zsojka at seznam dot cz @ 2009-12-05 1:56 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from zsojka at seznam dot cz 2009-12-05 01:55 -------
Created an attachment (id=19234)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19234&action=view)
somehow reduced testcase
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns
2009-12-05 1:55 [Bug rtl-optimization/42295] New: ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns zsojka at seznam dot cz
2009-12-05 1:56 ` [Bug rtl-optimization/42295] " zsojka at seznam dot cz
@ 2009-12-07 11:17 ` rguenth at gcc dot gnu dot org
2009-12-07 15:33 ` zsojka at seznam dot cz
` (2 subsequent siblings)
4 siblings, 0 replies; 10+ messages in thread
From: rguenth at gcc dot gnu dot org @ 2009-12-07 11:17 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from rguenth at gcc dot gnu dot org 2009-12-07 11:17 -------
-fschedule-insns is quite tricky for x86 targets, if it doesn't work do not use
it.
--
rguenth at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Component|rtl-optimization |target
GCC target triplet| |x86_64-*-*
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns
2009-12-05 1:55 [Bug rtl-optimization/42295] New: ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns zsojka at seznam dot cz
2009-12-05 1:56 ` [Bug rtl-optimization/42295] " zsojka at seznam dot cz
2009-12-07 11:17 ` [Bug target/42295] " rguenth at gcc dot gnu dot org
@ 2009-12-07 15:33 ` zsojka at seznam dot cz
2009-12-16 22:01 ` zsojka at seznam dot cz
2010-01-14 11:32 ` abel at gcc dot gnu dot org
4 siblings, 0 replies; 10+ messages in thread
From: zsojka at seznam dot cz @ 2009-12-07 15:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from zsojka at seznam dot cz 2009-12-07 15:33 -------
This testcase (the call to f() isn't needed in this case) crashes with 4.4 with
these flags as well:
-O3 -fselective-scheduling2 -fsel-sched-pipelining
-fsel-sched-pipelining-outer-loops
(-O2 is enough for trunk)
The crash message is:
testcase-manual.ii: In function ‘void testsum(ms*)’:
testcase-manual.ii:20: internal compiler error: in init_seqno, at
sel-sched.c:6433 (sel-sched.c:6722 for trunk)
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Is this the same issue, or should I open separate bug report? (eg.
-fselective-scheduling2 is not expected to always work on x86_64 as well)
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns
2009-12-05 1:55 [Bug rtl-optimization/42295] New: ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns zsojka at seznam dot cz
` (2 preceding siblings ...)
2009-12-07 15:33 ` zsojka at seznam dot cz
@ 2009-12-16 22:01 ` zsojka at seznam dot cz
2010-01-14 11:32 ` abel at gcc dot gnu dot org
4 siblings, 0 replies; 10+ messages in thread
From: zsojka at seznam dot cz @ 2009-12-16 22:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from zsojka at seznam dot cz 2009-12-16 22:01 -------
Created an attachment (id=19330)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=19330&action=view)
simplified testcase
(testcase from comment#3 turned out to be a dup of pr39453)
--
zsojka at seznam dot cz changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #19234|0 |1
is obsolete| |
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295
^ permalink raw reply [flat|nested] 10+ messages in thread
* [Bug target/42295] ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns
2009-12-05 1:55 [Bug rtl-optimization/42295] New: ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns zsojka at seznam dot cz
` (3 preceding siblings ...)
2009-12-16 22:01 ` zsojka at seznam dot cz
@ 2010-01-14 11:32 ` abel at gcc dot gnu dot org
4 siblings, 0 replies; 10+ messages in thread
From: abel at gcc dot gnu dot org @ 2010-01-14 11:32 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from abel at gcc dot gnu dot org 2010-01-14 11:32 -------
With the recent patches to sel-sched, testcases from comments #3 and #4 do not
longer fail for me. I'm still seeing the spill failure of the original report
though.
--
abel at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |abel at gcc dot gnu dot org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=42295
^ permalink raw reply [flat|nested] 10+ messages in thread
[parent not found: <bug-42295-4@http.gcc.gnu.org/bugzilla/>]
end of thread, other threads:[~2012-09-02 7:14 UTC | newest]
Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2009-12-05 1:55 [Bug rtl-optimization/42295] New: ICE: 'error: unable to find a register to spill in class "AREG"' with -fschedule-insns zsojka at seznam dot cz
2009-12-05 1:56 ` [Bug rtl-optimization/42295] " zsojka at seznam dot cz
2009-12-07 11:17 ` [Bug target/42295] " rguenth at gcc dot gnu dot org
2009-12-07 15:33 ` zsojka at seznam dot cz
2009-12-16 22:01 ` zsojka at seznam dot cz
2010-01-14 11:32 ` abel at gcc dot gnu dot org
[not found] <bug-42295-4@http.gcc.gnu.org/bugzilla/>
2012-09-01 21:25 ` ubizjak at gmail dot com
2012-09-01 22:19 ` dominiq at lps dot ens.fr
2012-09-02 7:08 ` uros at gcc dot gnu.org
2012-09-02 7:14 ` ubizjak at gmail dot com
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