http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59037
Bug ID: 59037
Summary: ICE when accessing invalid element (nelts + 1) of
vector
Product: gcc
Version: 4.9.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: middle-end
Assignee: unassigned at gcc dot gnu.org
Reporter: matthew.leach at arm dot com
Created attachment 31179
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=31179&action=edit
Reduced test case for ICE
Output of ./gcc -v -save-temps -O3 ~/test.c
Using built-in specs.
COLLECT_GCC=./gcc
COLLECT_LTO_WRAPPER=/work/gcc-trunk/gcc/install-native/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: ../configure --enable-languages=c
--prefix=/work/gcc-trunk/gcc/install-native
Thread model: posix
gcc version 4.9.0 20131107 (experimental) (GCC)
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O3' '-mtune=generic' '-march=x86-64'
/work/gcc-trunk/gcc/install-native/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/cc1
-E -quiet -v -imultilib . -imultiarch x86_64-linux-gnu /home/matlea01/test.c
-mtune=generic -march=x86-64 -O3 -fpch-preprocess -o test.i
ignoring nonexistent directory "/usr/local/include/x86_64-linux-gnu"
ignoring nonexistent directory
"/work/gcc-trunk/gcc/install-native/lib/gcc/x86_64-unknown-linux-gnu/4.9.0/../../../../x86_64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/work/gcc-trunk/gcc/install-native/lib/gcc/x86_64-unknown-linux-gnu/4.9.0/include
/usr/local/include
/work/gcc-trunk/gcc/install-native/include
/work/gcc-trunk/gcc/install-native/lib/gcc/x86_64-unknown-linux-gnu/4.9.0/include-fixed
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
COLLECT_GCC_OPTIONS='-v' '-save-temps' '-O3' '-mtune=generic' '-march=x86-64'
/work/gcc-trunk/gcc/install-native/libexec/gcc/x86_64-unknown-linux-gnu/4.9.0/cc1
-fpreprocessed test.i -quiet -dumpbase test.c -mtune=generic -march=x86-64
-auxbase test -O3 -version -o test.s
GNU C (GCC) version 4.9.0 20131107 (experimental) (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.9.0 20131107 (experimental), GMP version
4.3.2, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
GNU C (GCC) version 4.9.0 20131107 (experimental) (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.9.0 20131107 (experimental), GMP version
4.3.2, MPFR version 2.4.2, MPC version 0.8.1
GGC heuristics: --param ggc-min-expand=30 --param ggc-min-heapsize=4096
Compiler executable checksum: fa4fbb3b9b1dd7adc3db446e035da983
/home/matlea01/test.c: In function ‘main’:
/home/matlea01/test.c:9:1: internal compiler error: Segmentation fault
}
^
0x9c944f crash_signal
../../gcc/toplev.c:334
0xab9259 tree_check
../../gcc/tree.h:2691
0xab9259 simplify_bitfield_ref
../../gcc/tree-ssa-forwprop.c:3049
0xabc104 ssa_forward_propagate_and_combine
../../gcc/tree-ssa-forwprop.c:3496
0xabc104 execute
../../gcc/tree-ssa-forwprop.c:3590
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.
