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On 06/15/2015 12:00 PM, James Greenhalgh wrote:
On Wed, Jun 10, 2015 at 08:57:37AM +0100, Christian Bruel wrote:Hi, Commited [4/6] as attached (r224314) thanks Christian On 06/08/2015 11:26 AM, Ramana Radhakrishnan wrote:On 08/06/15 09:45, Christian Bruel wrote:do you have other feedbacks for the remaining parts ? many thanksThis is OK, thanks. RamanaHi Christian, This patch is causing an ICE for me in my arm-none-linux-gnueabihf testing. It looks like something isn't saving/restoring/initialising data structures needed for IRA. I've raised https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66541 , the bug looks very similar to pr64047 ( https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64047 ). Thanks, James
Hi James,OK, I'll have a look. pr52429.c is reported as UNSUPPORTED with my runs of arm-none-eabi (no threads), but I can reproduce with a manual run.
Cheers Christian
--- .../gcc/cc1 bug.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 âfooâ: .../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.
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