https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66541
Bug ID: 66541
Summary: r224314 causes ICE in gcc.dg/torture/pr52429.c
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: jgreenhalgh at gcc dot gnu.org
CC: christian.bruel at st dot com
Target Milestone: ---
Target: arm-none-linux-gnueabihf
Created attachment 35781
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=35781&action=edit
Reduced testcase
Looks closely related to https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64047
Reduced testcase attached, but the one in the testsuite is just as good.
.../gcc/cc1 besttry.c -O2 -ftree-parallelize-loops=4 -O2 -flto
-fno-use-linker-plugin -ftree-parallelize-loops=4 -o pr52429.s
foo
Analyzing compilation unit
Performing interprocedural optimizations
<*free_lang_data> <visibility> <build_ssa_passes> <opt_local_passes>
<free-inline-summary> <whole-program> <profile_estimate> <icf> <devirt> <cp>
<inline> <pure-const> <static-var> <single-use> <comdats>Assembling functions:
foo
.../gcc/testsuite/gcc.dg/torture/pr52429.c: In function ‘foo’:
.../gcc/testsuite/gcc.dg/torture/pr52429.c:11:1: internal compiler error:
Segmentation fault
int i;
^
0xafa15f crash_signal
.../gcc/toplev.c:369
0x97c2b4 record_operand_costs
.../gcc/ira-costs.c:1305
0x97c7a4 scan_one_insn
.../gcc/ira-costs.c:1483
0x97c7a4 process_bb_for_costs
.../gcc/ira-costs.c:1604
0x97d715 find_costs_and_classes
.../gcc/ira-costs.c:1711
0x97ec3a ira_set_pseudo_classes(bool, _IO_FILE*)
.../gcc/ira-costs.c:2245
0xffd743 alloc_global_sched_pressure_data
.../gcc/haifa-sched.c:7119
0xffd743 sched_init()
.../gcc/haifa-sched.c:7269
0xffebcf haifa_sched_init()
.../gcc/haifa-sched.c:7281
0xaab8dc schedule_insns
.../gcc/sched-rgn.c:3411
0xaac0b3 schedule_insns
.../gcc/sched-rgn.c:3405
0xaac0b3 rest_of_handle_sched
.../gcc/sched-rgn.c:3624
0xaac0b3 execute
.../gcc/sched-rgn.c:3732
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.
