https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69039
Bug ID: 69039
Summary: segfault with ftree-parallelize-loops=2
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: tree-optimization
Assignee: unassigned at gcc dot gnu.org
Reporter: vries at gcc dot gnu.org
Target Milestone: ---
Bootstrap with -ftree-parallelize-loops=2 by default (see PR68967) breaks here:
...
$ g++ ira-color.c -O2 -S -w -ftree-parallelize-loops=2
ira-color.c: In function void ira_color()�:
ira-color.c:113120:1: internal compiler error: Segmentation fault
ira_color (void)
^~~~~~~~~
0xd6323f crash_signal
src/gcc/toplev.c:334
0xefe02b contains_struct_check(tree_node*, tree_node_structure_enum, char
const*, int, char const*)
src/gcc/tree.h:3110
0xefe02b may_propagate_copy(tree_node*, tree_node*)
src/gcc/tree-ssa-propagate.c:1396
0xda1200 gimple_merge_blocks
src/gcc/tree-cfg.c:1868
0x9056d5 merge_blocks(basic_block_def*, basic_block_def*)
src/gcc/cfghooks.c:774
0xdaa854 cleanup_tree_cfg_bb
src/gcc/tree-cfgcleanup.c:646
0xdab20c cleanup_tree_cfg_1
src/gcc/tree-cfgcleanup.c:712
0xdab20c cleanup_tree_cfg_noloop
src/gcc/tree-cfgcleanup.c:747
0xdab20c cleanup_tree_cfg()
src/gcc/tree-cfgcleanup.c:798
0xc1c1e1 execute_expand_omp
src/gcc/omp-low.c:13384
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.
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