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[Matthias Klose <doko@xxxxxxxxxx>]

fixed in 4.8.4-2ubuntu1~14.04

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https://bugs.launchpad.net/bugs/1268893

Title:
  ICE when building kernel raid6 neon code

Status in Linaro GCC:
  Fix Released
Status in gcc-4.8 package in Ubuntu:
  Fix Released
Status in gcc-4.8 source package in Trusty:
  New

Bug description:
    CC      lib/raid6/neon4.o
  lib/raid6/neon4.c: In function 'raid6_neon4_gen_syndrome_real':
  lib/raid6/neon4.c:113:1: internal compiler error: in
  dwarf2out_frame_debug_adjust_cfa, at dwarf2cfi.c:1078
   }
   ^

  The gcc commandline:

  
  arm-angstrom-linux-gnueabi-gcc -Wp,-MD,lib/raid6/.neon4.o.d  -nostdinc
  -isystem
  /build/v2013.12/build/tmp-angstrom_v2013_12-eglibc/sysroots/x86_64-linux/usr/lib/armv7ahf-vfp-neon-angstrom-linux-gnueabi/gcc/arm-angstrom-linux-gnueabi/4.8.3/include
  -I/build/Projects/kernel/linux-linaro-tracking/arch/arm/include
  -Iarch/arm/include/generated  -Iinclude
  -I/build/Projects/kernel/linux-linaro-tracking/arch/arm/include/uapi
  -Iarch/arm/include/generated/uapi
  -I/build/Projects/kernel/linux-linaro-tracking/include/uapi
  -Iinclude/generated/uapi -include
  /build/Projects/kernel/linux-linaro-tracking/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
  -fno-delete-null-pointer-checks -Os -Wno-maybe-uninitialized
  -fno-dwarf2-cfi-asm -fno-omit-frame-pointer -mapcs -mno-sched-prolog
  -fstack-protector -mabi=aapcs-linux -mno-thumb-interwork -funwind-tables
  -marm -D__LINUX_ARM_ARCH__=6 -march=armv6k -mtune=arm1136j-s -msoft-float
  -Uarm -Wframe-larger-than=1024 -Wno-unused-but-set-variable
  -fno-omit-frame-pointer -fno-optimize-sibling-calls -g
  -Wdeclaration-after-statement -Wno-pointer-sign -fno-strict-overflow
  -fconserve-stack -Werror=implicit-int -Werror=strict-prototypes
  -DCC_HAVE_ASM_GOTO -ffreestanding -mfloat-abi=softfp -mfpu=neon
  -D"KBUILD_STR(s)=#s" -D"KBUILD_BASENAME=KBUILD_STR(neon4)"
  -D"KBUILD_MODNAME=KBUILD_STR(raid6_pq)" -c -o lib/raid6/.tmp_neon4.o
  lib/raid6/neon4.c

  Zhenqiang said:

  Trunk also has ICE. Root cause: dwarf info is partly updated in
  arm_emit_vfp_multi_reg_pop when enabling shrink-wrap.

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