[Bug target/67756] New: ICE compiling Linux Kernel fs/namei.c on ARM

[bernd.edlinger at hotmail dot de]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67756

            Bug ID: 67756
           Summary: ICE compiling Linux Kernel fs/namei.c on ARM
           Product: gcc
           Version: 6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: bernd.edlinger at hotmail dot de
  Target Milestone: ---

arm-linux-gnueabihf-gcc -v
Using built-in specs.
COLLECT_GCC=arm-linux-gnueabihf-gcc
COLLECT_LTO_WRAPPER=/home/ed/gnu/arm-linux-gnueabihf-linux64/libexec/gcc/arm-linux-gnueabihf/6.0.0/lto-wrapper
Target: arm-linux-gnueabihf
Configured with: ../gcc-6-20150927/configure
--prefix=/home/ed/gnu/arm-linux-gnueabihf-linux64 --target=arm-linux-gnueabihf
--enable-languages=c,c++,fortran,ada --with-arch=armv7-a --with-tune=cortex-a9
--with-fpu=vfpv3-d16 --with-float=hard
Thread model: posix
gcc version 6.0.0 20150927 (experimental) (GCC) 

arm-linux-gnueabihf-gcc -Wp,-MD,fs/.namei.o.d  -nostdinc -isystem
/home/ed/gnu/arm-linux-gnueabihf-linux64/lib/gcc/arm-linux-gnueabihf/6.0.0/include
-I./arch/arm/include -Iarch/arm/include/generated  -Iinclude
-I./arch/arm/include/uapi -Iarch/arm/include/generated/uapi -I./include/uapi
-Iinclude/generated/uapi -include ./include/linux/kconfig.h -D__KERNEL__
-mlittle-endian -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -Werror-implicit-function-declaration
-Wno-format-security -std=gnu89 -fno-dwarf2-cfi-asm -fno-omit-frame-pointer
-mapcs -mno-sched-prolog -mabi=aapcs-linux -mno-thumb-interwork -mfpu=vfp
-funwind-tables -marm -D__LINUX_ARM_ARCH__=7 -march=armv7-a -msoft-float -Uarm
-fno-delete-null-pointer-checks -O2 --param=allow-store-data-races=0
-Wframe-larger-than=1024 -fstack-protector -Wno-unused-but-set-variable
-fno-omit-frame-pointer -fno-optimize-sibling-calls
-fno-var-tracking-assignments -g -pg -Wdeclaration-after-statement
-Wno-pointer-sign -fno-strict-overflow -fconserve-stack -Werror=implicit-int
-Werror=strict-prototypes -Werror=date-time -DCC_HAVE_ASM_GOTO   
-D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(namei)" 
-D"KBUILD_MODNAME=KBUILD_STR(namei)" -c -o fs/namei.o fs/namei.c
fs/namei.c: In function 'vfs_link':
fs/namei.c:3934:1: error: insn does not satisfy its constraints:
 }
 ^
(insn 85 281 86 12 (parallel [
            (set (reg/v:SI 1 r1 [orig:113 max_links ] [113])
                (and:SI (ne:SI (reg/v:SI 1 r1 [orig:113 max_links ] [113])
                        (const_int 0 [0]))
                    (leu:SI (reg/v:SI 1 r1 [orig:113 max_links ] [113])
                        (reg:SI 2 r2 [orig:125 _25 ] [125]))))
            (clobber (reg:CC 100 cc))
        ]) fs/namei.c:3917 262 {*and_scc_scc_nodom}
     (nil))
fs/namei.c:3934:1: internal compiler error: in extract_constrain_insn, at
recog.c:2200
0xa3db48 _fatal_insn(char const*, rtx_def const*, char const*, int, char
const*)
        ../../gcc-6-20150927/gcc/rtl-error.c:109
0xa3db6f _fatal_insn_not_found(rtx_def const*, char const*, int, char const*)
        ../../gcc-6-20150927/gcc/rtl-error.c:120
0xa1028d extract_constrain_insn(rtx_insn*)
        ../../gcc-6-20150927/gcc/recog.c:2200
0x9efc9d reload_cse_simplify_operands
        ../../gcc-6-20150927/gcc/postreload.c:408
0x9f29b5 reload_cse_simplify
        ../../gcc-6-20150927/gcc/postreload.c:194
0x9f29b5 reload_cse_regs_1
        ../../gcc-6-20150927/gcc/postreload.c:233
0x9f2acb reload_cse_regs
        ../../gcc-6-20150927/gcc/postreload.c:81
0x9f2acb execute
        ../../gcc-6-20150927/gcc/postreload.c:2350
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