https://gcc.gnu.org/bugzilla/show_bug.cgi?id=78699
Bug ID: 78699
Summary: [7 Regression] ICE (segfault) on powerpc64le-linux-gnu
(memory-hog)
Product: gcc
Version: 7.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: doko at gcc dot gnu.org
Target Milestone: ---
Created attachment 40265
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=40265&action=edit
preprocessed source
seen with r243219 on powerpc64le-linux-gnu
$ g++ -std=gnu++11 -c -g -O3 -fPIE -mcpu=power8 uiuc_coef_drag.ii
eats all memory and then segfaults. hitting ^C after some time:
(gdb) bt
#0 vectorizable_load (stmt=0x3fffb3ddf910, gsi=0x3fffffffe250,
vec_stmt=0x3fffffffe190, slp_node=0x11bb7720, slp_node_instance=<optimized
out>) at ../../src/gcc/tree-vect-stmts.c:7394
#1 0x0000000010afcab4 in vect_transform_stmt (stmt=0x3fffb3ddf910,
gsi=0x3fffffffe250, grouped_store=0x3fffffffe268, slp_node=0x11bb7720,
slp_node_instance=<optimized out>)
at ../../src/gcc/tree-vect-stmts.c:8562
#2 0x0000000010b19e40 in vect_schedule_slp_instance (node=0x11bb7720,
instance=0x11c8bc30, vectorization_factor=1) at
../../src/gcc/tree-vect-slp.c:3742
#3 0x0000000010b19b74 in vect_schedule_slp_instance (node=0x11bc0010,
instance=0x11c8bc30, vectorization_factor=1) at
../../src/gcc/tree-vect-slp.c:3620
#4 0x0000000010b19b74 in vect_schedule_slp_instance (node=0x11bc0050,
instance=0x11c8bc30, vectorization_factor=1) at
../../src/gcc/tree-vect-slp.c:3620
#5 0x0000000010b19b74 in vect_schedule_slp_instance (node=0x11bc0090,
instance=0x11c8bc30, vectorization_factor=1) at
../../src/gcc/tree-vect-slp.c:3620
#6 0x0000000010b19b74 in vect_schedule_slp_instance (node=0x11bc00d0,
instance=0x11c8bc30, vectorization_factor=1) at
../../src/gcc/tree-vect-slp.c:3620
#7 0x0000000010b1d9b8 in vect_schedule_slp (vinfo=0x1190d7e0) at
../../src/gcc/tree-vect-slp.c:3814
#8 0x0000000010b1e26c in vect_slp_bb (bb=0x3fffb3beb050) at
../../src/gcc/tree-vect-slp.c:2816
#9 0x0000000010b2027c in (anonymous namespace)::pass_slp_vectorize::execute
(this=<optimized out>, fun=0x3fffb3290420) at
../../src/gcc/tree-vectorizer.c:841
#10 0x00000000107cf2d8 in execute_one_pass (pass=0x11931430) at
../../src/gcc/passes.c:2370
#11 0x00000000107cfba4 in execute_pass_list_1 (pass=0x11931430) at
../../src/gcc/passes.c:2459
#12 0x00000000107cfbbc in execute_pass_list_1 (pass=0x11930b80) at
../../src/gcc/passes.c:2460
#13 0x00000000107cfbbc in execute_pass_list_1 (pass=0x1192f7f0) at
../../src/gcc/passes.c:2460
#14 0x00000000107cfc48 in execute_pass_list (fn=<optimized out>,
pass=<optimized out>) at ../../src/gcc/passes.c:2470
#15 0x000000001048041c in cgraph_node::expand (this=0x3fffb366c0a0) at
../../src/gcc/cgraphunit.c:2001
#16 0x0000000010481f28 in expand_all_functions () at
../../src/gcc/cgraphunit.c:2137
#17 symbol_table::compile (this=0x3fffb58c0000) at
../../src/gcc/cgraphunit.c:2494
#18 0x00000000104843ec in symbol_table::compile (this=0x3fffb58c0000) at
../../src/gcc/cgraphunit.c:2554
#19 symbol_table::finalize_compilation_unit (this=0x3fffb58c0000) at
../../src/gcc/cgraphunit.c:2584
#20 0x00000000108c4724 in compile_file () at ../../src/gcc/toplev.c:488
#21 0x00000000101aa440 in do_compile () at ../../src/gcc/toplev.c:1983
#22 toplev::main (this=0x3fffffffefc0, argc=<optimized out>, argv=<optimized
out>) at ../../src/gcc/toplev.c:2117
#23 0x00000000101ac4e8 in main (argc=<optimized out>, argv=0x3ffffffff3e8) at
../../src/gcc/main.c:39
