https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65875
Bug ID: 65875
Summary: internal compiler error with gcc 5.1
Product: gcc
Version: 5.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
Assignee: unassigned at gcc dot gnu.org
Reporter: megahallon at gmail dot com
Created attachment 35394
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35394&action=edit
Preprocessed C file causing gcc crash
The enclosed file crashes gcc when compiled with -O2 as seen below. -O1 works.
It works with gcc 4.9.0.
$ gcc -v -O2 -c ~/gcc5.1bug.c
Using built-in specs.
COLLECT_GCC=gcc
Target: x86_64-unknown-linux-gnu
Configured with: ./configure --prefix=/usr/local --enable-languages=c,c++
--disable-multilib
Thread model: posix
gcc version 5.1.0 (GCC)
COLLECT_GCC_OPTIONS='-v' '-O2' '-c' '-mtune=generic' '-march=x86-64'
/usr/local/libexec/gcc/x86_64-unknown-linux-gnu/5.1.0/cc1 -quiet -v
/home/hallon/gcc5.1bug.c -quiet -dumpbase gcc5.1bug.c -mtune=generic
-march=x86-64 -auxbase gcc5.1bug -O2 -version -o /tmp/cccJihQs.s
GNU C11 (GCC) version 5.1.0 (x86_64-unknown-linux-gnu)
compiled by GNU C version 5.1.0, GMP version 6.0.0, MPFR version 3.1.2, MPC
version 1.0.3
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory
"/usr/local/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../x86_64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/local/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/include
/usr/local/include
/usr/local/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/include-fixed
/usr/include
End of search list.
GNU C11 (GCC) version 5.1.0 (x86_64-unknown-linux-gnu)
compiled by GNU C version 5.1.0, GMP version 6.0.0, MPFR version 3.1.2, MPC
version 1.0.3
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 2f2bc89784971300bbbb2cc329f649d8
src/sets/bitset.c: In function ‘mutbitset_iop_PyLongObject’:
src/sets/bitset.c:2021:20: warning: passing argument 1 of ‘_PyLong_Frexp’ from
incompatible pointer type [-Wincompatible-pointer-types]
In file included from
/srv/sdb1/jenkins/workspaces/develop-5.x/tmp/deploy/include/python2.7/Python.h:88:0,
from src/sets/bitset.c:3:
/srv/sdb1/jenkins/workspaces/develop-5.x/tmp/deploy/include/python2.7/longobject.h:43:8:
note: expected ‘PyLongObject * {aka struct _longobject *}’ but argument is of
type ‘PyObject * {aka struct _object *}’
src/sets/bitset.c:2021:23: warning: passing argument 2 of ‘_PyLong_Frexp’ from
incompatible pointer type [-Wincompatible-pointer-types]
In file included from
/srv/sdb1/jenkins/workspaces/develop-5.x/tmp/deploy/include/python2.7/Python.h:88:0,
from src/sets/bitset.c:3:
/srv/sdb1/jenkins/workspaces/develop-5.x/tmp/deploy/include/python2.7/longobject.h:43:8:
note: expected ‘Py_ssize_t * {aka long int *}’ but argument is of type ‘int *’
src/sets/bitset.c:2034:20: warning: passing argument 1 of ‘_PyLong_Frexp’ from
incompatible pointer type [-Wincompatible-pointer-types]
In file included from
/srv/sdb1/jenkins/workspaces/develop-5.x/tmp/deploy/include/python2.7/Python.h:88:0,
from src/sets/bitset.c:3:
/srv/sdb1/jenkins/workspaces/develop-5.x/tmp/deploy/include/python2.7/longobject.h:43:8:
note: expected ‘PyLongObject * {aka struct _longobject *}’ but argument is of
type ‘PyObject * {aka struct _object *}’
src/sets/bitset.c:2034:23: warning: passing argument 2 of ‘_PyLong_Frexp’ from
incompatible pointer type [-Wincompatible-pointer-types]
In file included from
/srv/sdb1/jenkins/workspaces/develop-5.x/tmp/deploy/include/python2.7/Python.h:88:0,
from src/sets/bitset.c:3:
/srv/sdb1/jenkins/workspaces/develop-5.x/tmp/deploy/include/python2.7/longobject.h:43:8:
note: expected ‘Py_ssize_t * {aka long int *}’ but argument is of type ‘int *’
src/sets/bitset.c: In function ‘sf_slice’:
src/sets/bitset.c:2985:1: internal compiler error: Segmentation fault
0x9bab0f crash_signal
../.././gcc/toplev.c:383
0xb73110 compare_values_warnv
../.././gcc/tree-vrp.c:1337
0xb7371c compare_values
../.././gcc/tree-vrp.c:1533
0xb833bc vrp_visit_phi_node
../.././gcc/tree-vrp.c:8879
0xad932d simulate_stmt
../.././gcc/tree-ssa-propagate.c:344
0xad9467 process_ssa_edge_worklist
../.././gcc/tree-ssa-propagate.c:422
0xada1fd ssa_propagate(ssa_prop_result (*)(gimple_statement_base*, edge_def**,
tree_node**), ssa_prop_result (*)(gphi*))
../.././gcc/tree-ssa-propagate.c:896
0xb7b394 execute_vrp
../.././gcc/tree-vrp.c:10367
0xb7b394 execute
../.././gcc/tree-vrp.c:10447
