[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #12 from jakub at gcc dot gnu dot org 2010-03-31 07:45 --- When it is approved, I will, of course. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #13 from jakub at gcc dot gnu dot org 2010-03-31 08:41 --- Subject: Bug 43580 Author: jakub Date: Wed Mar 31 08:41:28 2010 New Revision: 157853 URL: http://gcc.gnu.org/viewcvs?root=gccview=revrev=157853 Log: PR target/43580 * config/arm/arm.c (arm_save_coproc_regs): Use Pmode instead of V2SImode or XFmode on PRE_DEC. Modified: trunk/gcc/ChangeLog trunk/gcc/config/arm/arm.c -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #14 from jakub at gcc dot gnu dot org 2010-03-31 08:51 --- Should be fixed. -- jakub at gcc dot gnu dot org changed: What|Removed |Added Status|NEW |RESOLVED Resolution||FIXED http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #3 from mikpe at it dot uu dot se 2010-03-30 09:38 --- Building gcc-4.5-20100325 as a cross to arm-unknown-eabi works and compiles __mulsc3 for all three of thumb, arm, and arm + float-abi=hard. But a cross to arm-unknown-elf fails to build because of an ICE when compiling __mulsc3 for arm + float-abi=hard: /tmp/objdir/./gcc/xgcc -B/tmp/objdir/./gcc/ -B/tmp/junk/arm-unknown-elf/bin/ -B/tmp/junk/arm-unknown-elf/lib/ -isystem /tmp/junk/arm-unknown-elf/include -isystem /tmp/junk/arm-unknown-elf/sys-include-g -O2 -mfloat-abi=hard -O2 -g -O2 -DIN_GCC -DCROSS_DIRECTORY_STRUCTURE -W -Wall -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition -isystem ./include -fno-inline -Wno-missing-prototypes -g -DIN_LIBGCC2 -D__GCC_FLOAT_NOT_NEEDED -Dinhibit_libc -I. -I. -I../../.././gcc -I/tmp/gcc-4.5-20100325/libgcc -I/tmp/gcc-4.5-20100325/libgcc/. -I/tmp/gcc-4.5-20100325/libgcc/../gcc -I/tmp/gcc-4.5-20100325/libgcc/../include -DHAVE_CC_TLS -o _mulsc3.o -MT _mulsc3.o -MD -MP -MF _mulsc3.dep -DL_mulsc3 -c /tmp/gcc-4.5-20100325/libgcc/../gcc/libgcc2.c \ /tmp/gcc-4.5-20100325/libgcc/../gcc/libgcc2.c: In function '__mulsc3': /tmp/gcc-4.5-20100325/libgcc/../gcc/libgcc2.c:1889:1: internal compiler error: Segmentation fault -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #4 from rguenth at gcc dot gnu dot org 2010-03-30 13:55 --- CCing ARM maintainer. -- rguenth at gcc dot gnu dot org changed: What|Removed |Added CC||richard dot earnshaw at arm ||dot com http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #5 from mikpe at it dot uu dot se 2010-03-30 14:42 --- It's caused or exposed by r157476: 2010-03-16 Jakub Jelinek ja...@redhat.com PR debug/43051 PR debug/43092 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #6 from mikpe at it dot uu dot se 2010-03-30 14:48 --- (In reply to comment #5) It's caused or exposed by r157476: 2010-03-16 Jakub Jelinek ja...@redhat.com PR debug/43051 PR debug/43092 Actually this caused a different ICE earlier in libgcc2.c (__muldi3), but before this revision it didn't ICE at all. I'll continue looking. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #7 from jakub at gcc dot gnu dot org 2010-03-30 15:32 ---
Looks like an arm backend bug:
(insn/f 624 6 625 2 /users/joel/test-gcc/gcc-svn/libgcc/../gcc/libgcc2.c:1827
(set (mem:XF (pre_dec:XF (reg/f:SI 13 sp)) [0 S12 A32])
(reg:XF 23 f7)) 390 {*movxf_fpa} (expr_list:REG_DEAD (reg:XF 23 f7)
(nil)))
is certainly not valid RTL. PRE_DEC must have machine mode for pointers on
the machine in use, XFmode is not such a mode.
--
jakub at gcc dot gnu dot org changed:
What|Removed |Added
CC||ramana at gcc dot gnu dot
||org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #8 from jakub at gcc dot gnu dot org 2010-03-30 15:34 --- Created an attachment (id=20258) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20258action=view) gcc45-pr43580.patch Untested fix. Can somebody please test it? -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #9 from mikpe at it dot uu dot se 2010-03-30 16:04 --- (In reply to comment #8) Created an attachment (id=20258) -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20258action=view) [edit] gcc45-pr43580.patch Untested fix. Can somebody please test it? Worked for me. Tested on top of 4.5 r157825 with cross to arm-unknown-elf. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #10 from ramana at gcc dot gnu dot org 2010-03-30 20:09 --- This would be arm-elf only because arm-eabi configurations don't touch the FPA which is why this didn't show up earlier. My last trawl of this looked for PRE_DEC and BLKmode - didn't expect an XFmode for this. -- ramana at gcc dot gnu dot org changed: What|Removed |Added Status|UNCONFIRMED |NEW Ever Confirmed|0 |1 GCC target triplet|arm-rtems4.10 |arm-rtems4.10, arm-elf Last reconfirmed|-00-00 00:00:00 |2010-03-30 20:09:51 date|| http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #11 from joel at gcc dot gnu dot org 2010-03-30 23:05 --- Patch worked for me targeting arm-rtems4.10 on the same gcc checkout. Please apply it. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
-- pinskia at gcc dot gnu dot org changed: What|Removed |Added Keywords||build, ice-on-valid-code Summary|ICE segfault compiling |[4.5 Regression] ICE |libgcc2.c |segfault compiling libgcc2.c Target Milestone|--- |4.5.0 http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
[Bug target/43580] [4.5 Regression] ICE segfault compiling libgcc2.c
--- Comment #2 from joel at gcc dot gnu dot org 2010-03-29 18:45 --- Could someone try this with arm-eabi/elf? That would impact the priority of this bug. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43580
