http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51968
Bug #: 51968
Summary: gcc trunk (ARM) ICEs in final_scan_insn in
final.c:2716, with "could not split insn" error msg
Classification: Unclassified
Product: gcc
Version: 4.7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: eric.ba...@allegorithmic.com
Created attachment 26433
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=26433
Preprocessed file that triggers the ICE
Trunk gcc compiled with Android's build-gcc.sh ICEs on the attached
preprocessed file.
The actual error message is:
../../../engine/src/filters/cpu/shader/jpeg_simd.cpp:753:1: error: could not
split insn
(insn 2104 4054 4050 (set (reg:V16QI 103 d20 [orig:846 D.35902 ] [846])
(vec_concat:V16QI (reg:V8QI 103 d20 [2317])
(reg:V8QI 105 d21 [2318])))
/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/lib/gcc/arm-linux-androideabi/4.7.0/include/arm_neon.h:5694
1348 {neon_vcombinev8qi}
(nil))
../../../engine/src/filters/cpu/shader/jpeg_simd.cpp:753:1: internal compiler
error: in final_scan_insn, at final.c:2716
This is a regression caused by commit 183051, and breaks a lot of Neon code in
our codebase :)
cc1plus command:
cc1plus -fpreprocessed jpeg_simd.ii -quiet -dumpbase jpeg_simd.cpp -mandroid
-mbionic -march=armv7-a -mcpu=cortex-a9 -mfloat-abi=softfp -mfpu=vfp -mfpu=neon
-marm -mtls-dialect=gnu -auxbase-strip
tmp/obj/android-g++/release/cpushader_neon/jpeg_simd.o -O2 -O2
-Wno-unused-function -Wno-psabi -Werror=implicit-function-declaration -Wall
-Wextra -Wno-strict-aliasing -Wno-unused -Wno-switch -Wno-comment -version
-fpic -flax-vector-conversions -fdata-sections -ffunction-sections
-fno-short-enums -fno-exceptions -fno-rtti -fvisibility=hidden
-fvisibility-inlines-hidden -fno-strict-aliasing -fPIC -o jpeg_simd.s
gcc -v -save-temps yields:
Using built-in specs.
COLLECT_GCC=/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/bin/arm-linux-androideabi-g++
COLLECT_LTO_WRAPPER=/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/libexec/gcc/arm-linux-androideabi/4.7.0/lto-wrapper
Target: arm-linux-androideabi
Configured with: /home/eb/android-ndk-r6/src/build/../gcc/gcc-4.7.0/configure
--prefix=/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86
--target=arm-linux-androideabi --host=i386-linux-gnu --build=i386-linux-gnu
--with-gnu-as --with-gnu-ld --enable-languages=c,c++
--with-gmp=/tmp/ndk-eb/build/toolchain/temp-install
--with-mpfr=/tmp/ndk-eb/build/toolchain/temp-install
--with-mpc=/tmp/ndk-eb/build/toolchain/temp-install --disable-libssp
--enable-threads --disable-nls --disable-libmudflap --disable-libgomp
--disable-libstdc__-v3 --disable-sjlj-exceptions --disable-shared --disable-tls
--with-float=soft --with-fpu=vfp --with-arch=armv5te --enable-target-optspace
--enable-initfini-array --disable-nls
--prefix=/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86
--with-sysroot=/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/sysroot
--with-binutils-version=2.21.53 --with-mpfr-version=3.0.1
--with-gmp-version=5.0.2 --with-gcc-version=4.7.0 --with-gdb-version=6.6
--with-mpc-version=0.9 --with-arch=armv5te --enable-libstdc__-v3
--program-transform-name='s,^,arm-linux-androideabi-,'
Thread model: posix
gcc version 4.7.0 20120123 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-c' '-mandroid' '-mbionic'
'-Wno-unused-function' '-Wno-psabi' '-march=armv7-a' '-mcpu=cortex-a9'
'-mfloat-abi=softfp' '-mfpu=vfp' '-fpic'
'-Werror=implicit-function-declaration' '-flax-vector-conversions'
'-fdata-sections' '-ffunction-sections' '-fno-short-enums' '-D' 'ANDROID' '-D'
'__ARM_ARCH_5__' '-D' '__ARM_ARCH_5T__' '-D' '__ARM_ARCH_5E__' '-D'
'__ARM_ARCH_5TE__' '-D' '__ARM_NEON__' '-D' 'S_IWRITE=0200' '-D'
'HAVE_USR_INCLUDE_MALLOC_H' '-D' 'MADV_FREE=5' '-D' 'LINUX' '-D'
'PAGE_SIZE=0x400' '-D' 'HAVE_PTHREAD_MUTEX_TIMEDLOCK' '-D' 'HAVE_SYS_SEM_H'
'-D' 'WEBPLUG=0' '-D' 'GAMERELEASE=1' '-D' 'DEBUGMODE=0' '-D' 'UNITY_RELEASE=1'
'-D' 'ENABLE_PROFILER=0' '-D' 'ANDROID' '-D' 'OS_ANDROID' '-D'
'_STLP_HAS_WCHAR_T' '-D' 'BOOST_NO_CWCHAR' '-D' 'ALG_DEBUG_SIMPLEOUTPUT' '-D'
'QT_NO_QWS_TRANSFORMED' '-fno-exceptions' '-fno-rtti' '-fvisibility=hidden'
'-fvisibility-inlines-hidden' '-mfpu=neon' '-O2' '-marm' '-O2'
'-fno-strict-aliasing' '-fPIC' '-D' '_REENTRANT' '-Wall' '-Wextra'
'-Wno-strict-aliasing' '-Wno-unused' '-Wno-switch' '-Wno-comment' '-D'
'ALG_MAIN_CPU_ON' '-D' 'FX_PRJ_RDXM' '-D' 'FX_PRJ_DXTENC' '-D' 'FX_PRJ_PVRENC'
'-D' 'FX_PRJ_ETC' '-D' 'emit=' '-D' 'NDEBUG' '-D' 'ALG_ISA_NEON' '-D'
'FX_ARCH_CURRENT_NEON' '-D' 'FX_ARCH_ON_NEON' '-D' 'ALG_DEBUG_SIMPLEOUTPUT'
'-I' '/usr/lib/qt4/mkspecs/android-g++' '-I' '.' '-I'
'../../../../common/components/include' '-I'
'/home/eb/android-ndk-r6/sources/cxx-stl/stlport/stlport' '-I'
'/home/eb/android-ndk-r6/platforms/android-9/arch-arm/usr/include' '-o'
'tmp/obj/android-g++/release/cpushader_neon/jpeg_simd.o' '-mtls-dialect=gnu'
/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/libexec/gcc/arm-linux-androideabi/4.7.0/cc1plus
-E -quiet -v -I /usr/lib/qt4/mkspecs/android-g++ -I . -I
../../../../common/components/include -I
/home/eb/android-ndk-r6/sources/cxx-stl/stlport/stlport -I
/home/eb/android-ndk-r6/platforms/android-9/arch-arm/usr/include -imultilib
armv7-a -D_GNU_SOURCE -D ANDROID -D __ARM_ARCH_5__ -D __ARM_ARCH_5T__ -D
__ARM_ARCH_5E__ -D __ARM_ARCH_5TE__ -D __ARM_NEON__ -D S_IWRITE=0200 -D
HAVE_USR_INCLUDE_MALLOC_H -D MADV_FREE=5 -D LINUX -D PAGE_SIZE=0x400 -D
HAVE_PTHREAD_MUTEX_TIMEDLOCK -D HAVE_SYS_SEM_H -D WEBPLUG=0 -D GAMERELEASE=1 -D
DEBUGMODE=0 -D UNITY_RELEASE=1 -D ENABLE_PROFILER=0 -D ANDROID -D OS_ANDROID -D
_STLP_HAS_WCHAR_T -D BOOST_NO_CWCHAR -D ALG_DEBUG_SIMPLEOUTPUT -D
QT_NO_QWS_TRANSFORMED -D _REENTRANT -D ALG_MAIN_CPU_ON -D FX_PRJ_RDXM -D
FX_PRJ_DXTENC -D FX_PRJ_PVRENC -D FX_PRJ_ETC -D emit= -D NDEBUG -D ALG_ISA_NEON
-D FX_ARCH_CURRENT_NEON -D FX_ARCH_ON_NEON -D ALG_DEBUG_SIMPLEOUTPUT
../../../engine/src/filters/cpu/shader/jpeg_simd.cpp -mandroid -mbionic
-march=armv7-a -mcpu=cortex-a9 -mfloat-abi=softfp -mfpu=vfp -mfpu=neon -marm
-mtls-dialect=gnu -Wno-unused-function -Wno-psabi
-Werror=implicit-function-declaration -Wall -Wextra -Wno-strict-aliasing
-Wno-unused -Wno-switch -Wno-comment -fpic -flax-vector-conversions
-fdata-sections -ffunction-sections -fno-short-enums -fno-exceptions -fno-rtti
-fvisibility=hidden -fvisibility-inlines-hidden -fno-strict-aliasing -fPIC -O2
-O2 -fpch-preprocess -o jpeg_simd.ii
ignoring nonexistent directory
"/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/lib/gcc/arm-linux-androideabi/4.7.0/../../../../arm-linux-androideabi/include/c++/4.7.0"
ignoring nonexistent directory
"/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/lib/gcc/arm-linux-androideabi/4.7.0/../../../../arm-linux-androideabi/include/c++/4.7.0/arm-linux-androideabi/armv7-a"
ignoring nonexistent directory
"/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/lib/gcc/arm-linux-androideabi/4.7.0/../../../../arm-linux-androideabi/include/c++/4.7.0/backward"
ignoring nonexistent directory
"/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/sysroot/usr/local/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/qt4/mkspecs/android-g++
.
../../../../common/components/include
/home/eb/android-ndk-r6/sources/cxx-stl/stlport/stlport
/home/eb/android-ndk-r6/platforms/android-9/arch-arm/usr/include
/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/lib/gcc/arm-linux-androideabi/4.7.0/include
/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/lib/gcc/arm-linux-androideabi/4.7.0/include-fixed
/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/lib/gcc/arm-linux-androideabi/4.7.0/../../../../arm-linux-androideabi/include
/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/sysroot/usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-c' '-mandroid' '-mbionic'
'-Wno-unused-function' '-Wno-psabi' '-march=armv7-a' '-mcpu=cortex-a9'
'-mfloat-abi=softfp' '-mfpu=vfp' '-fpic'
'-Werror=implicit-function-declaration' '-flax-vector-conversions'
'-fdata-sections' '-ffunction-sections' '-fno-short-enums' '-D' 'ANDROID' '-D'
'__ARM_ARCH_5__' '-D' '__ARM_ARCH_5T__' '-D' '__ARM_ARCH_5E__' '-D'
'__ARM_ARCH_5TE__' '-D' '__ARM_NEON__' '-D' 'S_IWRITE=0200' '-D'
'HAVE_USR_INCLUDE_MALLOC_H' '-D' 'MADV_FREE=5' '-D' 'LINUX' '-D'
'PAGE_SIZE=0x400' '-D' 'HAVE_PTHREAD_MUTEX_TIMEDLOCK' '-D' 'HAVE_SYS_SEM_H'
'-D' 'WEBPLUG=0' '-D' 'GAMERELEASE=1' '-D' 'DEBUGMODE=0' '-D' 'UNITY_RELEASE=1'
'-D' 'ENABLE_PROFILER=0' '-D' 'ANDROID' '-D' 'OS_ANDROID' '-D'
'_STLP_HAS_WCHAR_T' '-D' 'BOOST_NO_CWCHAR' '-D' 'ALG_DEBUG_SIMPLEOUTPUT' '-D'
'QT_NO_QWS_TRANSFORMED' '-fno-exceptions' '-fno-rtti' '-fvisibility=hidden'
'-fvisibility-inlines-hidden' '-mfpu=neon' '-O2' '-marm' '-O2'
'-fno-strict-aliasing' '-fPIC' '-D' '_REENTRANT' '-Wall' '-Wextra'
'-Wno-strict-aliasing' '-Wno-unused' '-Wno-switch' '-Wno-comment' '-D'
'ALG_MAIN_CPU_ON' '-D' 'FX_PRJ_RDXM' '-D' 'FX_PRJ_DXTENC' '-D' 'FX_PRJ_PVRENC'
'-D' 'FX_PRJ_ETC' '-D' 'emit=' '-D' 'NDEBUG' '-D' 'ALG_ISA_NEON' '-D'
'FX_ARCH_CURRENT_NEON' '-D' 'FX_ARCH_ON_NEON' '-D' 'ALG_DEBUG_SIMPLEOUTPUT'
'-I' '/usr/lib/qt4/mkspecs/android-g++' '-I' '.' '-I'
'../../../../common/components/include' '-I'
'/home/eb/android-ndk-r6/sources/cxx-stl/stlport/stlport' '-I'
'/home/eb/android-ndk-r6/platforms/android-9/arch-arm/usr/include' '-o'
'tmp/obj/android-g++/release/cpushader_neon/jpeg_simd.o' '-mtls-dialect=gnu'
/home/eb/android-ndk-r6/toolchains/arm-linux-androideabi-4.7.0/prebuilt/linux-x86/libexec/gcc/arm-linux-androideabi/4.7.0/cc1plus
-fpreprocessed jpeg_simd.ii -quiet -dumpbase jpeg_simd.cpp -mandroid -mbionic
-march=armv7-a -mcpu=cortex-a9 -mfloat-abi=softfp -mfpu=vfp -mfpu=neon -marm
-mtls-dialect=gnu -auxbase-strip
tmp/obj/android-g++/release/cpushader_neon/jpeg_simd.o -O2 -O2
-Wno-unused-function -Wno-psabi -Werror=implicit-function-declaration -Wall
-Wextra -Wno-strict-aliasing -Wno-unused -Wno-switch -Wno-comment -version
-fpic -flax-vector-conversions -fdata-sections -ffunction-sections
-fno-short-enums -fno-exceptions -fno-rtti -fvisibility=hidden
-fvisibility-inlines-hidden -fno-strict-aliasing -fPIC -o jpeg_simd.s
GNU C++ (GCC) version 4.7.0 20120123 (experimental) (arm-linux-androideabi)
compiled by GNU C version 4.6.0 20110603 (Red Hat 4.6.0-10), GMP version
5.0.2, MPFR version 3.0.1, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C++ (GCC) version 4.7.0 20120123 (experimental) (arm-linux-androideabi)
compiled by GNU C version 4.6.0 20110603 (Red Hat 4.6.0-10), GMP version
5.0.2, MPFR version 3.0.1, MPC version 0.9
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: 4654630ea77465d440d8a712bf4ed3eb
