[Bug lto/45557] Segfault with -flto -O1 -finline-small-functions -fpartial-inlining

2010-09-06 Thread alexey at feldgendler dot ru


--- Comment #1 from alexey at feldgendler dot ru  2010-09-06 13:48 ---
Created an attachment (id=21710)
 -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21710action=view)
Testcase


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45557



[Bug lto/45557] Segfault with -flto -O1 -finline-small-functions -fpartial-inlining

2010-09-06 Thread alexey at feldgendler dot ru


--- Comment #2 from alexey at feldgendler dot ru  2010-09-06 13:49 ---
Created an attachment (id=21711)
 -- (http://gcc.gnu.org/bugzilla/attachment.cgi?id=21711action=view)
Incomplete assembly file cc1plus manages to write before segfaulting


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45557



[Bug lto/45557] Segfault with -flto -O1 -finline-small-functions -fpartial-inlining

2010-09-06 Thread alexey at feldgendler dot ru


--- Comment #3 from alexey at feldgendler dot ru  2010-09-06 13:51 ---
$ gdb --args /usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/cc1plus -v
-D_GNU_SOURCE TC.cpp -dumpbase TC.cpp -mtune=generic -march=x86-64 -auxbase TC
-O1 -version -flto -finline-small-functions -fpartial-inlining
GNU gdb (GDB) 7.0.1-debian
Copyright (C) 2009 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later http://gnu.org/licenses/gpl.html
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type show copying
and show warranty for details.
This GDB was configured as x86_64-linux-gnu.
For bug reporting instructions, please see:
http://www.gnu.org/software/gdb/bugs/...
Reading symbols from
/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/cc1plus...done.
(gdb) r
Starting program: /usr/local/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/cc1plus
-v -D_GNU_SOURCE TC.cpp -dumpbase TC.cpp -mtune=generic -march=x86-64 -auxbase
TC -O1 -version -flto -finline-small-functions -fpartial-inlining
GNU C++ (GCC) version 4.6.0 20100828 (experimental) (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.6.0 20100828 (experimental), GMP version
4.3.2, MPFR version 3.0.0-p3, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring nonexistent directory
/usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/../../../../x86_64-unknown-linux-gnu/include
#include ... search starts here:
#include ... search starts here:
 /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/include/c++

/usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/include/c++/x86_64-unknown-linux-gnu
 /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/include/c++/backward
 /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/include
 /usr/local/include
 /usr/local/lib/gcc/x86_64-unknown-linux-gnu/4.6.0/include-fixed
 /usr/include
End of search list.
GNU C++ (GCC) version 4.6.0 20100828 (experimental) (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.6.0 20100828 (experimental), GMP version
4.3.2, MPFR version 3.0.0-p3, MPC version 0.8.2
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
options passed:  -v -D_GNU_SOURCE TC.cpp -mtune=generic -march=x86-64 -O1
 -flto -finline-small-functions -fpartial-inlining
options enabled:  -falign-loops -fasynchronous-unwind-tables
 -fauto-inc-dec -fbranch-count-reg -fcommon -fcprop-registers -fdefer-pop
 -fdelete-null-pointer-checks -fdwarf2-cfi-asm -fearly-inlining
 -feliminate-unused-debug-types -fexceptions -fforward-propagate
 -ffunction-cse -fgcse-lm -fguess-branch-probability -fident
 -fif-conversion -fif-conversion2 -finline -finline-functions-called-once
 -finline-small-functions -fipa-profile -fipa-pure-const -fipa-reference
 -fira-share-save-slots -fira-share-spill-slots -fivopts
 -fkeep-static-consts -fleading-underscore -fmath-errno -fmerge-constants
 -fmerge-debug-strings -fmove-loop-invariants -fomit-frame-pointer
 -fpartial-inlining -fpeephole -fprefetch-loop-arrays -freg-struct-return
 -fsched-critical-path-heuristic -fsched-dep-count-heuristic
 -fsched-group-heuristic -fsched-interblock -fsched-last-insn-heuristic
 -fsched-rank-heuristic -fsched-spec -fsched-spec-insn-heuristic
 -fsched-stalled-insns-dep -fshow-column -fsigned-zeros
 -fsplit-ivs-in-unroller -fsplit-wide-types -fstrict-volatile-bitfields
 -ftoplevel-reorder -ftrapping-math -ftree-bit-ccp -ftree-ccp -ftree-ch
 -ftree-copy-prop -ftree-copyrename -ftree-cselim -ftree-dce
 -ftree-dominator-opts -ftree-dse -ftree-forwprop -ftree-fre
 -ftree-loop-if-convert -ftree-loop-im -ftree-loop-ivcanon
 -ftree-loop-optimize -ftree-parallelize-loops= -ftree-phiprop -ftree-pta
 -ftree-reassoc -ftree-scev-cprop -ftree-sink -ftree-slp-vectorize
 -ftree-sra -ftree-ter -ftree-vect-loop-version -funit-at-a-time
 -funwind-tables -fvar-tracking -fvar-tracking-assignments
 -fvect-cost-model -fzero-initialized-in-bss -m128bit-long-double -m64
 -m80387 -maccumulate-outgoing-args -malign-stringops -mfancy-math-387
 -mfp-ret-in-387 -mfused-madd -mglibc -mieee-fp -mmmx -mno-sse4 -mpush-args
 -mred-zone -msse -msse2 -mtls-direct-seg-refs
Compiler executable checksum: 2c7dd1386f3abb6f2873be5b63c94737
 int f3()
Analyzing compilation unit
Performing interprocedural optimizations
 *free_lang_data visibility early_local_cleanups whole-program
ipa-profile inline pure-const static-varAssembling functions:
 f3()
Program received signal SIGSEGV, Segmentation fault.
prepare_use_sites_for (update_flags=2048) at
/home/xman/gcc-4.6-20100828/gcc/tree-into-ssa.c:2588
2588  edge e = gimple_phi_arg_edge (stmt, ix);
(gdb) bt
#0  prepare_use_sites_for (update_flags=2048) at
/home/xman/gcc-4.6-20100828/gcc/tree-into-ssa.c:2588
#1  prepare_names_to_update (update_flags=2048) at
/home/xman/gcc-4.6-20100828/gcc/tree-into-ssa.c:2657
#2  update_ssa (update_flags=2048) at
/home/xman/gcc-4.6-20100828/gcc/tree-into-ssa.c:3291
#3  

[Bug lto/45557] Segfault with -flto -O1 -finline-small-functions -fpartial-inlining

2010-09-06 Thread rguenth at gcc dot gnu dot org


--- Comment #4 from rguenth at gcc dot gnu dot org  2010-09-06 13:53 ---
Seems to be fixed by

2010-09-02  Richard Guenther  rguent...@suse.de

PR tree-optimization/44937
PR tree-optimization/45412
* ipa-split.c (split_function): Properly remove PHI nodes.


*** This bug has been marked as a duplicate of 44937 ***


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rguenth at gcc dot gnu dot org changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution||DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45557



[Bug lto/45557] Segfault with -flto -O1 -finline-small-functions -fpartial-inlining

2010-09-06 Thread alexey at feldgendler dot ru


--- Comment #5 from alexey at feldgendler dot ru  2010-09-06 14:03 ---
Indeed, the patch fixes this bug for me. Thanks!


-- 

alexey at feldgendler dot ru changed:

   What|Removed |Added

 Status|RESOLVED|VERIFIED


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=45557