http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47002
Summary: segmentation fault in find_uses_to_rename_use
Product: gcc
Version: 4.6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c
AssignedTo: unassig...@gcc.gnu.org
ReportedBy: dcb...@hotmail.com
Created attachment 22809
--> http://gcc.gnu.org/bugzilla/attachment.cgi?id=22809
C source code
I just tried to compile package covered-0.7.7 with the latest 4.6
snapshot 20101211 on a Fedora Linux box. The compiler said
../src/vector.c: In function 'vector_set_value_ulong':
../src/vector.c:1857:6: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <http://gcc.gnu.org/bugs.html> for instructions.
valgrind says
==11010== Invalid read of size 8
==11010== at 0x8B1809: find_uses_to_rename_use (tree-ssa-loop-manip.c:1246)
==11010== by 0x8B1A27: find_uses_to_rename_bb (tree-ssa-loop-manip.c:301)
==11010== by 0x8B216D: rewrite_into_loop_closed_ssa
(tree-ssa-loop-manip.c:331)
==11010== by 0x82A239: distribute_loop (tree-loop-distribution.c:1020)
==11010== by 0x82B15C: tree_loop_distribution
(tree-loop-distribution.c:1146)
==11010== by 0x74510E: execute_one_pass (passes.c:1553)
==11010== by 0x7453B4: execute_pass_list (passes.c:1608)
==11010== by 0x7453C6: execute_pass_list (passes.c:1609)
==11010== by 0x7453C6: execute_pass_list (passes.c:1609)
==11010== by 0x838CD5: tree_rest_of_compilation (tree-optimize.c:422)
==11010== by 0x9D6540: cgraph_expand_function (cgraphunit.c:1508)
==11010== by 0x9D8AA9: cgraph_optimize (cgraphunit.c:1567)
==11010== Address 0x10 is not stack'd, malloc'd or (recently) free'd
==11010==
Source code attached. Flag -O3 required.
