http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53105
Bug #: 53105
Summary: Segmentation fault in is_gimple_min_invariant
Classification: Unclassified
Product: gcc
Version: 4.8.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: dcb...@hotmail.com
Created attachment 27231
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=27231
C source code
I just tried to compile the package bristol-0.60.9-2
on gcc-4.8 trunk dated 20120422 on an AMD x86_64 box.
The compiler said
thesermon.c: In function 'thesermon':
thesermon.c:264:1: internal compiler error: Segmentation fault
thesermon(int samplecount, int sineform)
^
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
Here is a valgrind stack backtrace
==5749== Invalid read of size 2
==5749== at 0x79E060: is_gimple_min_invariant(tree_node const*)
(gimple.c:2794)
==5749== by 0xA6AC6E: _Z24expr_invariant_in_loop_pP4loopP9tree_node.part.91
(tree-ssa-loop-ivopts.c:1396)
==5749== by 0xA6AC7D: _Z24expr_invariant_in_loop_pP4loopP9tree_node.part.91
(tree-ssa-loop-ivopts.c:1396)
==5749== by 0xEE585B: vect_check_strided_load(gimple_statement_d*,
_loop_vec_info*, tree_node**, tree_node**) (tree-vect-data-refs.c:2730)
==5749== by 0xEE64B4: vect_analyze_data_refs(_loop_vec_info*, _bb_vec_info*,
int*) (tree-vect-data-refs.c:3144)
==5749== by 0xB318DA: vect_analyze_loop(loop*) (tree-vect-loop.c:1513)
==5749== by 0xB459E3: vectorize_loops() (tree-vectorizer.c:203)
==5749== by 0x8A622C: execute_one_pass(opt_pass*) (passes.c:2176)
==5749== by 0x8A67E6: execute_pass_list(opt_pass*) (passes.c:2231)
==5749== by 0x63644D: _ZL24tree_rest_of_compilationP11cgraph_node.isra.28
(cgraphunit.c:1860)
==5749== by 0x639445: cgraph_expand_function(cgraph_node*)
(cgraphunit.c:1930)
==5749== by 0x63B707: cgraph_optimize() (cgraphunit.c:1995)
==5749== Address 0x0 is not stack'd, malloc'd or (recently) free'd
Preprocessed source code attached. Flags -O3 -ffast-math required.
