[Bug middle-end/67330] ICE handling weak attributes

["sasha.levin at oracle dot com" <gcc-bugzilla at gcc dot gnu dot org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67330

--- Comment #3 from Sasha Levin <sasha.levin at oracle dot com> ---
This is the -v invocation:

Using built-in specs.
COLLECT_GCC=gcc
Target: x86_64-pc-linux-gnu
Configured with: ../configure --prefix=/home/sasha/gcc-inst/ --with-arch=native
--with-tune=native --enable-languages=c --enable-lto --enable-gold
--enable-stage1-languages=c
Thread model: posix
gcc version 6.0.0 20150823 (experimental) (GCC) 
COLLECT_GCC_OPTIONS='-v' '-nostdinc' '-isystem'
'/home/sasha/gcc-inst/lib/gcc/x86_64-pc-linux-gnu/6.0.0/include' '-I'
'./arch/x86/include' '-I' 'arch/x86/include/generated/uapi' '-I'
'arch/x86/include/generated' '-I' 'include' '-I' './arch/x86/include/uapi' '-I'
'arch/x86/include/generated/uapi' '-I' './include/uapi' '-I'
'include/generated/uapi' '-include' './include/linux/kconfig.h' '-D'
'__KERNEL__' '-Wall' '-Wundef' '-Wstrict-prototypes' '-Wno-trigraphs'
'-fno-strict-aliasing' '-fno-common' '-Werror=implicit-function-declaration'
'-Wno-format-security' '-std=gnu90' '-mno-sse' '-mno-mmx' '-mno-sse2'
'-mno-3dnow' '-mno-avx' '-m64' '-falign-jumps=1' '-falign-loops=1' '-mno-80387'
'-mno-fp-ret-in-387' '-mpreferred-stack-boundary=3' '-mskip-rax-setup'
'-march=native' '-mno-red-zone' '-mcmodel=kernel' '-funit-at-a-time'
'-maccumulate-outgoing-args' '-D' 'CONFIG_X86_X32_ABI' '-D'
'CONFIG_AS_FXSAVEQ=1' '-D' 'CONFIG_AS_SSSE3=1' '-D' 'CONFIG_AS_CRC32=1' '-D'
'CONFIG_AS_AVX=1' '-D' 'CONFIG_AS_AVX2=1' '-pipe' '-Wno-sign-compare'
'-fno-asynchronous-unwind-tables' '-fno-delete-null-pointer-checks' '-O2'
'--param' 'allow-store-data-races=0' '-fno-reorder-blocks' '-fno-ipa-cp-clone'
'-fno-partial-inlining' '-Wframe-larger-than=2048' '-fstack-protector'
'-Wno-unused-but-set-variable' '-fno-omit-frame-pointer'
'-fno-optimize-sibling-calls' '-fno-var-tracking-assignments' '-g' '-gdwarf-4'
'-pg' '-mfentry' '-D' 'CC_USING_FENTRY' '-fno-inline-functions-called-once'
'-Wdeclaration-after-statement' '-Wno-pointer-sign' '-fno-strict-overflow'
'-fconserve-stack' '-Werror=implicit-int' '-Werror=strict-prototypes'
'-Werror=date-time' '-D' 'CC_HAVE_ASM_GOTO' '-fsanitize=kernel-address'
'-fasan-shadow-offset=0xdffffc0000000000' '--param' 'asan-stack=1' '--param'
'asan-globals=1' '--param' 'asan-instrumentation-with-call-threshold=10000'
'-D' 'KBUILD_STR(s)=#s' '-D' 'KBUILD_BASENAME=KBUILD_STR(core)' '-D'
'KBUILD_MODNAME=KBUILD_STR(core)' '-c' '-o' 'kernel/sched/.tmp_core.o'
 /home/sasha/gcc-inst/libexec/gcc/x86_64-pc-linux-gnu/6.0.0/cc1 -quiet
-nostdinc -v -I ./arch/x86/include -I arch/x86/include/generated/uapi -I
arch/x86/include/generated -I include -I ./arch/x86/include/uapi -I
arch/x86/include/generated/uapi -I ./include/uapi -I include/generated/uapi
-imultiarch x86_64-linux-gnu -D __KERNEL__ -D CONFIG_X86_X32_ABI -D
CONFIG_AS_FXSAVEQ=1 -D CONFIG_AS_SSSE3=1 -D CONFIG_AS_CRC32=1 -D
CONFIG_AS_AVX=1 -D CONFIG_AS_AVX2=1 -D CC_USING_FENTRY -D CC_HAVE_ASM_GOTO -D
KBUILD_STR(s)=#s -D KBUILD_BASENAME=KBUILD_STR(core) -D
KBUILD_MODNAME=KBUILD_STR(core) -isystem
/home/sasha/gcc-inst/lib/gcc/x86_64-pc-linux-gnu/6.0.0/include -include
./include/linux/kconfig.h -MD kernel/sched/.core.o.d kernel/sched/core.c
-march=nehalem -mmmx -mno-3dnow -msse -msse2 -msse3 -mssse3 -mno-sse4a -mcx16
-msahf -mno-movbe -mno-aes -mno-sha -mno-pclmul -mpopcnt -mno-abm -mno-lwp
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l2-cache-size=24576 -mtune=nehalem -quiet -dumpbase core.c -mno-sse -mno-mmx
-mno-sse2 -mno-3dnow -mno-avx -m64 -mno-80387 -mno-fp-ret-in-387
-mpreferred-stack-boundary=3 -mskip-rax-setup -mno-red-zone -mcmodel=kernel
-maccumulate-outgoing-args -mfentry -auxbase-strip kernel/sched/.tmp_core.o -g
-gdwarf-4 -O2 -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-Werror=implicit-function-declaration -Wno-format-security -Wno-sign-compare
-Wframe-larger-than=2048 -Wno-unused-but-set-variable
-Wdeclaration-after-statement -Wno-pointer-sign -Werror=implicit-int
-Werror=strict-prototypes -Werror=date-time -std=gnu90 -version -p
-fno-strict-aliasing -fno-common -falign-jumps=1 -falign-loops=1
-funit-at-a-time -fno-asynchronous-unwind-tables
-fno-delete-null-pointer-checks -fno-reorder-blocks -fno-ipa-cp-clone
-fno-partial-inlining -fstack-protector -fno-omit-frame-pointer
-fno-optimize-sibling-calls -fno-var-tracking-assignments
-fno-inline-functions-called-once -fno-strict-overflow -fconserve-stack
-fsanitize=kernel-address -fasan-shadow-offset=0xdffffc0000000000 --param
allow-store-data-races=0 --param asan-stack=1 --param asan-globals=1 --param
asan-instrumentation-with-call-threshold=10000 -o - |
 as -v -I ./arch/x86/include -I arch/x86/include/generated/uapi -I
arch/x86/include/generated -I include -I ./arch/x86/include/uapi -I
arch/x86/include/generated/uapi -I ./include/uapi -I include/generated/uapi
--64 -o kernel/sched/.tmp_core.o
GNU C89 (GCC) version 6.0.0 20150823 (experimental) (x86_64-pc-linux-gnu)
        compiled by GNU C version 6.0.0 20150823 (experimental), GMP version
5.0.5, MPFR version 3.1.0-p10, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
ignoring duplicate directory "arch/x86/include/generated/uapi"
#include "..." search starts here:
#include <...> search starts here:
 ./arch/x86/include
 arch/x86/include/generated/uapi
 arch/x86/include/generated
 include
 ./arch/x86/include/uapi
 ./include/uapi
 include/generated/uapi
 /home/sasha/gcc-inst/lib/gcc/x86_64-pc-linux-gnu/6.0.0/include
End of search list.
GNU C89 (GCC) version 6.0.0 20150823 (experimental) (x86_64-pc-linux-gnu)
        compiled by GNU C version 6.0.0 20150823 (experimental), GMP version
5.0.5, MPFR version 3.1.0-p10, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU assembler version 2.24 (x86_64-linux-gnu) using BFD version (GNU Binutils
for Debian) 2.24
Compiler executable checksum: 5d34ea2cdcf90b3d08395d2e098e1d89
kernel/sched/core.c: In function â__scheduleâ:
kernel/sched/core.c:3049:7: warning: unused variable âdoitâ [-Wunused-variable]
  bool doit = false;
       ^
In file included from include/linux/perf_event.h:47:0,
                 from kernel/sched/core.c:41:
kernel/sched/core.c: In function âget_parent_ipâ:
include/linux/ftrace.h:671:36: warning: calling â__builtin_return_addressâ with
a nonzero argument is unsafe [-Wframe-address]
 #  define ftrace_return_address(n) __builtin_return_address(n)
                                    ^
include/linux/ftrace.h:679:38: note: in expansion of macro
âftrace_return_addressâ
 #define CALLER_ADDR2 ((unsigned long)ftrace_return_address(2))
                                      ^
kernel/sched/core.c:2854:10: note: in expansion of macro âCALLER_ADDR2â
   addr = CALLER_ADDR2;
          ^
include/linux/ftrace.h:671:36: warning: calling â__builtin_return_addressâ with
a nonzero argument is unsafe [-Wframe-address]
 #  define ftrace_return_address(n) __builtin_return_address(n)
                                    ^
include/linux/ftrace.h:680:38: note: in expansion of macro
âftrace_return_addressâ
 #define CALLER_ADDR3 ((unsigned long)ftrace_return_address(3))
                                      ^
kernel/sched/core.c:2856:11: note: in expansion of macro âCALLER_ADDR3â
    addr = CALLER_ADDR3;
           ^
COMPILER_PATH=/home/sasha/gcc-inst/libexec/gcc/x86_64-pc-linux-gnu/6.0.0/:/home/sasha/gcc-inst/libexec/gcc/x86_64-pc-linux-gnu/6.0.0/:/home/sasha/gcc-inst/libexec/gcc/x86_64-pc-linux-gnu/:/home/sasha/gcc-inst/lib/gcc/x86_64-pc-linux-gnu/6.0.0/:/home/sasha/gcc-inst/lib/gcc/x86_64-pc-linux-gnu/
LIBRARY_PATH=/home/sasha/gcc-inst/lib/gcc/x86_64-pc-linux-gnu/6.0.0/:/home/sasha/gcc-inst/lib/gcc/x86_64-pc-linux-gnu/6.0.0/../../../../lib64/:/lib/x86_64-linux-gnu/:/lib/../lib64/:/usr/lib/x86_64-linux-gnu/:/home/sasha/gcc-inst/lib/gcc/x86_64-pc-linux-gnu/6.0.0/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v' '-nostdinc' '-isystem'
'/home/sasha/gcc-inst/lib/gcc/x86_64-pc-linux-gnu/6.0.0/include' '-I'
'./arch/x86/include' '-I' 'arch/x86/include/generated/uapi' '-I'
'arch/x86/include/generated' '-I' 'include' '-I' './arch/x86/include/uapi' '-I'
'arch/x86/include/generated/uapi' '-I' './include/uapi' '-I'
'include/generated/uapi' '-include' './include/linux/kconfig.h' '-D'
'__KERNEL__' '-Wall' '-Wundef' '-Wstrict-prototypes' '-Wno-trigraphs'
'-fno-strict-aliasing' '-fno-common' '-Werror=implicit-function-declaration'
'-Wno-format-security' '-std=gnu90' '-mno-sse' '-mno-mmx' '-mno-sse2'
'-mno-3dnow' '-mno-avx' '-m64' '-falign-jumps=1' '-falign-loops=1' '-mno-80387'
'-mno-fp-ret-in-387' '-mpreferred-stack-boundary=3' '-mskip-rax-setup'
'-march=native' '-mno-red-zone' '-mcmodel=kernel' '-funit-at-a-time'
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'CONFIG_AS_AVX=1' '-D' 'CONFIG_AS_AVX2=1' '-pipe' '-Wno-sign-compare'
'-fno-asynchronous-unwind-tables' '-fno-delete-null-pointer-checks' '-O2'
'--param' 'allow-store-data-races=0' '-fno-reorder-blocks' '-fno-ipa-cp-clone'
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'-fno-optimize-sibling-calls' '-fno-var-tracking-assignments' '-g' '-gdwarf-4'
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'-Werror=date-time' '-D' 'CC_HAVE_ASM_GOTO' '-fsanitize=kernel-address'
'-fasan-shadow-offset=0xdffffc0000000000' '--param' 'asan-stack=1' '--param'
'asan-globals=1' '--param' 'asan-instrumentation-with-call-threshold=10000'
'-D' 'KBUILD_STR(s)=#s' '-D' 'KBUILD_BASENAME=KBUILD_STR(core)' '-D'
'KBUILD_MODNAME=KBUILD_STR(core)' '-c' '-o' 'kernel/sched/.tmp_core.o'