http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57483
Bug ID: 57483
Summary: Linux kernel (lto-3.9 branch) compilation fails with
enabled LTO
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: marxin.liska at gmail dot com
Andi Kleen is maintaining Linux kernel LTO branch:
https://github.com/andikleen/linux-misc
Repository version:
5c1e0bc49249c3ff44849a8f72e6cccd1486f38f
GCC used to be able to compile such kernel, regression was introduced in
revision: 198741
Error:
In function ‘alloc_iommu’:
lto1: internal compiler error: in input_gimple_stmt, at
gimple-streamer-in.c:287
0xc76db5 input_gimple_stmt
../../gcc/gimple-streamer-in.c:286
0xc76db5 input_bb(lto_input_block*, LTO_tags, data_in*, function*, int)
../../gcc/gimple-streamer-in.c:345
0x77d1b3 input_function
../../gcc/lto-streamer-in.c:887
0x77d1b3 lto_read_body
../../gcc/lto-streamer-in.c:1011
0x77d1b3 lto_input_function_body(lto_file_decl_data*, tree_node*, char const*)
../../gcc/lto-streamer-in.c:1055
0x4ff322 lto_materialize_function
../../gcc/lto/lto.c:226
0x4ff322 materialize_cgraph
../../gcc/lto/lto.c:3084
0x506a88 lto_main()
../../gcc/lto/lto.c:3348
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.
make[1]: *** [/tmp/ccRWZATW.ltrans8.ltrans.o] Error 1
make[1]: *** Waiting for unfinished jobs....
/tmp/cckatHC0.s: Assembler messages:
/tmp/cckatHC0.s:10068: Error: symbol `__compound_literal.0' is already defined
/tmp/cckatHC0.s:30211: Error: symbol `__compound_literal.0' is already defined
make[1]: *** [/tmp/ccRWZATW.ltrans6.ltrans.o] Error 1
lto-wrapper: make returned 2 exit status
/home/marxin/gcc-jan/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/ld: lto-wrapper
failed
collect2: error: ld returned 1 exit status
make: *** [vmlinux] Error 1
