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* [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround'
@ 2012-03-15 5:40 ojab at ojab dot ru
2012-03-15 6:02 ` [Bug c/52592] " pinskia at gcc dot gnu.org
` (12 more replies)
0 siblings, 13 replies; 14+ messages in thread
From: ojab at ojab dot ru @ 2012-03-15 5:40 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
Bug #: 52592
Summary: mplayer compilation failure with undefined reference
to `__builtin_iround'
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: ojab@ojab.ru
MPlayer build fails with gcc-4.7.0rc2 (see
http://bugzilla.mplayerhq.hu/show_bug.cgi?id=2047 ):
gcc -o mencoder mencoder.o parser-mecmd.o … -lfribidi -lass -lz -lbz2 -lmad
-lvpx -lpthread -ldl -rdynamic -lmp3lame
ffmpeg/libavcodec/libavcodec.a(ffv1.o): In function `encode_init':
ffv1.c:(.text.unlikely+0x16a1): undefined reference to `__builtin_iround'
collect2: error: ld returned 1 exit status
make: *** [mencoder] Error 1
make: *** Waiting for unfinished jobs....
ffmpeg/libavcodec/libavcodec.a(ffv1.o): In function `encode_init':
ffv1.c:(.text.unlikely+0x16a1): undefined reference to `__builtin_iround'
collect2: error: ld returned 1 exit status
make: *** [mplayer] Error 1
Looks like related to http://gcc.gnu.org/ml/gcc-patches/2011-08/msg01001.html
and
>Please document those in doc/extend.texi and make sure they do not leak into the global namespace as ifloor, etc., but are only available as __builtin_ifloor, etc..
from http://gcc.gnu.org/ml/gcc-patches/2011-08/msg01003.html
mplayer builds fine with CFLAGS=-ffast-math, I think that it can be gcc bug.
Please tell me what additional info is needed.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug c/52592] mplayer compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
@ 2012-03-15 6:02 ` pinskia at gcc dot gnu.org
2012-03-15 6:04 ` [Bug middle-end/52592] " ojab at ojab dot ru
` (11 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-03-15 6:02 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-15 06:00:37 UTC ---
What target is this on?
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] mplayer compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
2012-03-15 6:02 ` [Bug c/52592] " pinskia at gcc dot gnu.org
@ 2012-03-15 6:04 ` ojab at ojab dot ru
2012-03-15 6:04 ` pinskia at gcc dot gnu.org
` (10 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: ojab at ojab dot ru @ 2012-03-15 6:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
--- Comment #3 from ojab <ojab at ojab dot ru> 2012-03-15 06:04:02 UTC ---
$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-unknown-linux-gnu/4.7.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../gcc-4.7.0-RC-20120314/configure --prefix=/usr
--libexecdir=/usr/lib --enable-shared --enable-threads=posix
--enable-__cxa_atexit --enable-clocale=gnu --enable-languages=c,c++
--disable-multilib --disable-bootstrap --with-system-zlib
Thread model: posix
gcc version 4.7.0 20120314 (prerelease) (GCC)
Compilation string:
gcc -I. -I./ -DHAVE_AV_CONFIG_H -Wundef -Wall -Wno-switch -Wno-parentheses
-Wpointer-arith -Wredundant-decls -Wstrict-prototypes -Wmissing-prototypes
-Wdisabled-optimization -Wno-pointer-sign -Wdeclaration-after-statement
-std=gnu99 -Werror-implicit-function-declaration -O4 -march=native
-mtune=native -pipe -ffast-math -fomit-frame-pointer -fno-tree-vectorize
-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -D_LARGEFILE64_SOURCE -Ilibdvdread4
-I. -Iffmpeg -D_REENTRANT -I/usr/include/freetype2 -MD -MP -c -o
libavcodec/ffv1.o libavcodec/ffv1.c
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] mplayer compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
2012-03-15 6:02 ` [Bug c/52592] " pinskia at gcc dot gnu.org
2012-03-15 6:04 ` [Bug middle-end/52592] " ojab at ojab dot ru
@ 2012-03-15 6:04 ` pinskia at gcc dot gnu.org
2012-03-15 6:13 ` [Bug middle-end/52592] [4.7/4.8 Regression] " pinskia at gcc dot gnu.org
` (9 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-03-15 6:04 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
Last reconfirmed| |2012-03-15
Component|c |middle-end
Ever Confirmed|0 |1
--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-15 06:01:53 UTC ---
Can you attach the preprocessed source for ffv1.c ?
Also can you give the exact command is used to compile ffv1.c ?
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] mplayer compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
` (3 preceding siblings ...)
2012-03-15 6:13 ` [Bug middle-end/52592] [4.7/4.8 Regression] " pinskia at gcc dot gnu.org
@ 2012-03-15 6:13 ` ojab at ojab dot ru
2012-03-15 6:44 ` [Bug middle-end/52592] [4.7/4.8 Regression] " pinskia at gcc dot gnu.org
` (7 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: ojab at ojab dot ru @ 2012-03-15 6:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
--- Comment #4 from ojab <ojab at ojab dot ru> 2012-03-15 06:04:38 UTC ---
Created attachment 26896
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26896
Preprocessed source
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] [4.7/4.8 Regression] compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
` (2 preceding siblings ...)
2012-03-15 6:04 ` pinskia at gcc dot gnu.org
@ 2012-03-15 6:13 ` pinskia at gcc dot gnu.org
2012-03-15 6:13 ` [Bug middle-end/52592] mplayer " ojab at ojab dot ru
` (8 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-03-15 6:13 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Keywords| |link-failure, wrong-code
Target| |x86_64-*-linux-gnu
Status|WAITING |NEW
Target Milestone|--- |4.7.0
Summary|mplayer compilation failure |[4.7/4.8 Regression]
|with undefined reference to |compilation failure with
|`__builtin_iround' |undefined reference to
| |`__builtin_iround'
Severity|normal |critical
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-15 06:13:11 UTC ---
Reducing a testcase.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] [4.7/4.8 Regression] compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
` (4 preceding siblings ...)
2012-03-15 6:13 ` [Bug middle-end/52592] mplayer " ojab at ojab dot ru
@ 2012-03-15 6:44 ` pinskia at gcc dot gnu.org
2012-03-15 7:11 ` pinskia at gcc dot gnu.org
` (6 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-03-15 6:44 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
--- Comment #6 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-15 06:13:42 UTC ---
Note a simple testcase works correctly.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] [4.7/4.8 Regression] compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
` (5 preceding siblings ...)
2012-03-15 6:44 ` [Bug middle-end/52592] [4.7/4.8 Regression] " pinskia at gcc dot gnu.org
@ 2012-03-15 7:11 ` pinskia at gcc dot gnu.org
2012-03-15 7:22 ` pinskia at gcc dot gnu.org
` (5 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-03-15 7:11 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
--- Comment #7 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-15 06:43:55 UTC ---
Reduced testcase:
int best_state[256][256];
__attribute__((cold))
int encode_init(double p) {
return best_state[(int)round(p)][0];
}
--- CUT ---
(define_expand "lround<X87MODEF:mode><SWI248x:mode>2"
[(match_operand:SWI248x 0 "nonimmediate_operand" "")
(match_operand:X87MODEF 1 "register_operand" "")]
"(TARGET_USE_FANCY_MATH_387
&& (!(SSE_FLOAT_MODE_P (<X87MODEF:MODE>mode) && TARGET_SSE_MATH)
|| TARGET_MIX_SSE_I387)
&& flag_unsafe_math_optimizations)
|| (SSE_FLOAT_MODE_P (<X87MODEF:MODE>mode) && TARGET_SSE_MATH
&& <SWI248x:MODE>mode != HImode
&& ((<SWI248x:MODE>mode != DImode) || TARGET_64BIT)
&& !flag_trapping_math && !flag_rounding_math)"
{
if (optimize_insn_for_size_p ())
FAIL;
--- CUT ---
Looks like there is a disconnect about when choosing iround over lround.
I bet the code that handles the expanding of __builtin_iround
(expand_builtin_int_roundingfn_2) should do exactly what the expanding of iceil
does (expand_builtin_int_roundingfn).
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] [4.7/4.8 Regression] compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
` (6 preceding siblings ...)
2012-03-15 7:11 ` pinskia at gcc dot gnu.org
@ 2012-03-15 7:22 ` pinskia at gcc dot gnu.org
2012-03-15 7:47 ` pinskia at gcc dot gnu.org
` (4 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-03-15 7:22 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
--- Comment #8 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-15 07:10:46 UTC ---
Here is the smallest testcase:
__attribute__((cold))
int encode_init(double p) {
return (int)__builtin_round(p);
}
---- CUT ----
I think I have a patch, just testing it a little bit.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] [4.7/4.8 Regression] compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
` (7 preceding siblings ...)
2012-03-15 7:22 ` pinskia at gcc dot gnu.org
@ 2012-03-15 7:47 ` pinskia at gcc dot gnu.org
2012-03-15 9:42 ` jakub at gcc dot gnu.org
` (3 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: pinskia at gcc dot gnu.org @ 2012-03-15 7:47 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
--- Comment #9 from Andrew Pinski <pinskia at gcc dot gnu.org> 2012-03-15 07:25:21 UTC ---
Created attachment 26897
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26897
Patch which fixes the problem
I don't have enough time to regress test this patch though.
But here is the ChangeLog for it:
* builtins.c (expand_builtin_int_roundingfn_2): If the expanding of iround
optab fails, then expand using lround call.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] [4.7/4.8 Regression] compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
` (8 preceding siblings ...)
2012-03-15 7:47 ` pinskia at gcc dot gnu.org
@ 2012-03-15 9:42 ` jakub at gcc dot gnu.org
2012-03-15 13:41 ` jakub at gcc dot gnu.org
` (2 subsequent siblings)
12 siblings, 0 replies; 14+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-03-15 9:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Attachment #26897|0 |1
is obsolete| |
Status|NEW |ASSIGNED
AssignedTo|unassigned at gcc dot |jakub at gcc dot gnu.org
|gnu.org |
--- Comment #10 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-03-15 09:36:02 UTC ---
Created attachment 26898
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26898
gcc47-pr52592.patch
Fixed up and simplified patch, untested so far.
I guess expand_builtin_int_roundingfn (for 4.8 only) could be simplified too,
by using mathfn_built_in_1 (, , 0); and dropping the whole if (fallback_fndecl
== NULL_TREE) { ... }.
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] [4.7/4.8 Regression] compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
` (9 preceding siblings ...)
2012-03-15 9:42 ` jakub at gcc dot gnu.org
@ 2012-03-15 13:41 ` jakub at gcc dot gnu.org
2012-03-15 13:42 ` jakub at gcc dot gnu.org
2012-03-15 14:18 ` jakub at gcc dot gnu.org
12 siblings, 0 replies; 14+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-03-15 13:41 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
--- Comment #11 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-03-15 13:30:10 UTC ---
Author: jakub
Date: Thu Mar 15 13:30:04 2012
New Revision: 185431
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185431
Log:
PR middle-end/52592
* builtins.c (expand_builtin_int_roundingfn_2): If expanding
BUILT_IN_IR{INT,OUND}* using optab fails, emit lr{int,ound}*
calls instead of __builtin_ir{int,ound}*.
* gcc.dg/pr52592.c: New test.
Added:
trunk/gcc/testsuite/gcc.dg/pr52592.c
Modified:
trunk/gcc/ChangeLog
trunk/gcc/builtins.c
trunk/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] [4.7/4.8 Regression] compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
` (10 preceding siblings ...)
2012-03-15 13:41 ` jakub at gcc dot gnu.org
@ 2012-03-15 13:42 ` jakub at gcc dot gnu.org
2012-03-15 14:18 ` jakub at gcc dot gnu.org
12 siblings, 0 replies; 14+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-03-15 13:42 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
--- Comment #12 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-03-15 13:40:19 UTC ---
Author: jakub
Date: Thu Mar 15 13:40:13 2012
New Revision: 185432
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=185432
Log:
PR middle-end/52592
* builtins.c (expand_builtin_int_roundingfn_2): If expanding
BUILT_IN_IR{INT,OUND}* using optab fails, emit lr{int,ound}*
calls instead of __builtin_ir{int,ound}*.
* gcc.dg/pr52592.c: New test.
Added:
branches/gcc-4_7-branch/gcc/testsuite/gcc.dg/pr52592.c
Modified:
branches/gcc-4_7-branch/gcc/ChangeLog
branches/gcc-4_7-branch/gcc/builtins.c
branches/gcc-4_7-branch/gcc/testsuite/ChangeLog
^ permalink raw reply [flat|nested] 14+ messages in thread
* [Bug middle-end/52592] [4.7/4.8 Regression] compilation failure with undefined reference to `__builtin_iround'
2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
` (11 preceding siblings ...)
2012-03-15 13:42 ` jakub at gcc dot gnu.org
@ 2012-03-15 14:18 ` jakub at gcc dot gnu.org
12 siblings, 0 replies; 14+ messages in thread
From: jakub at gcc dot gnu.org @ 2012-03-15 14:18 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52592
Jakub Jelinek <jakub at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #13 from Jakub Jelinek <jakub at gcc dot gnu.org> 2012-03-15 13:42:41 UTC ---
Fixed.
^ permalink raw reply [flat|nested] 14+ messages in thread
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2012-03-15 5:40 [Bug c/52592] New: mplayer compilation failure with undefined reference to `__builtin_iround' ojab at ojab dot ru
2012-03-15 6:02 ` [Bug c/52592] " pinskia at gcc dot gnu.org
2012-03-15 6:04 ` [Bug middle-end/52592] " ojab at ojab dot ru
2012-03-15 6:04 ` pinskia at gcc dot gnu.org
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