[Bug 1693313] [NEW] gcc-7 fails to build on ppc64el in 14.04 LTS

[Matthias Klose]

Public bug reported:

Seen in the PPA build
https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/test/+sourcepub/7820043/+listing-archive-extra

the build hangs building different target libraries,

Program received signal SIGINT, Interrupt.
0x00000000105ae658 in process_bb_lives (bb=0x3fffb59f21b8, curr_point=@0x3fffffffe420: 3545, dead_insn_p=true)
    at ../../src/gcc/lra-lives.c:722
722                   > GET_MODE_SIZE (lra_reg_info[regno].biggest_mode))
(gdb) bt
#0  0x00000000105ae658 in process_bb_lives (bb=0x3fffb59f21b8, curr_point=@0x3fffffffe420: 3545, dead_insn_p=true)
    at ../../src/gcc/lra-lives.c:722
#1  0x00000000105b0c50 in lra_create_live_ranges_1 (all_p=true, dead_insn_p=<optimized out>) at ../../src/gcc/lra-lives.c:1300
#2  0x00000000105b19b0 in lra_create_live_ranges (all_p=<optimized out>, dead_insn_p=<optimized out>)
    at ../../src/gcc/lra-lives.c:1365
#3  0x000000001058de98 in lra (f=<optimized out>) at ../../src/gcc/lra.c:2429
#4  0x0000000010535bcc in do_reload () at ../../src/gcc/ira.c:5472
#5  (anonymous namespace)::pass_reload::execute (this=<optimized out>) at ../../src/gcc/ira.c:5656
#6  0x000000001063fee4 in execute_one_pass (pass=0x11662180) at ../../src/gcc/passes.c:2465
#7  0x0000000010640eb4 in execute_pass_list_1 (pass=0x11662180) at ../../src/gcc/passes.c:2554
#8  0x0000000010640ecc in execute_pass_list_1 (pass=0x116610a0) at ../../src/gcc/passes.c:2555
#9  0x0000000010640f58 in execute_pass_list (fn=<optimized out>, pass=<optimized out>) at ../../src/gcc/passes.c:2565

it's an endless loop in lra, slowly growing memory until it is killed by
the kernel -mno-lra works around it.

checked that the build requirements are fulfilled in that PPA. Also
checked that building using binutils 2.26.1 shows the same results.

** Affects: gcc-7 (Ubuntu)
     Importance: Undecided
         Status: New

-- 
You received this bug notification because you are a member of Ubuntu
Foundations Bugs, which is subscribed to gcc-7 in Ubuntu.
https://bugs.launchpad.net/bugs/1693313

Title:
  gcc-7 fails to build on ppc64el in 14.04 LTS

Status in gcc-7 package in Ubuntu:
  New

Bug description:
  Seen in the PPA build
  https://launchpad.net/~ubuntu-toolchain-r/+archive/ubuntu/test/+sourcepub/7820043/+listing-archive-extra

  the build hangs building different target libraries,

  Program received signal SIGINT, Interrupt.
  0x00000000105ae658 in process_bb_lives (bb=0x3fffb59f21b8, curr_point=@0x3fffffffe420: 3545, dead_insn_p=true)
      at ../../src/gcc/lra-lives.c:722
  722                   > GET_MODE_SIZE (lra_reg_info[regno].biggest_mode))
  (gdb) bt
  #0  0x00000000105ae658 in process_bb_lives (bb=0x3fffb59f21b8, curr_point=@0x3fffffffe420: 3545, dead_insn_p=true)
      at ../../src/gcc/lra-lives.c:722
  #1  0x00000000105b0c50 in lra_create_live_ranges_1 (all_p=true, dead_insn_p=<optimized out>) at ../../src/gcc/lra-lives.c:1300
  #2  0x00000000105b19b0 in lra_create_live_ranges (all_p=<optimized out>, dead_insn_p=<optimized out>)
      at ../../src/gcc/lra-lives.c:1365
  #3  0x000000001058de98 in lra (f=<optimized out>) at ../../src/gcc/lra.c:2429
  #4  0x0000000010535bcc in do_reload () at ../../src/gcc/ira.c:5472
  #5  (anonymous namespace)::pass_reload::execute (this=<optimized out>) at ../../src/gcc/ira.c:5656
  #6  0x000000001063fee4 in execute_one_pass (pass=0x11662180) at ../../src/gcc/passes.c:2465
  #7  0x0000000010640eb4 in execute_pass_list_1 (pass=0x11662180) at ../../src/gcc/passes.c:2554
  #8  0x0000000010640ecc in execute_pass_list_1 (pass=0x116610a0) at ../../src/gcc/passes.c:2555
  #9  0x0000000010640f58 in execute_pass_list (fn=<optimized out>, pass=<optimized out>) at ../../src/gcc/passes.c:2565

  it's an endless loop in lra, slowly growing memory until it is killed
  by the kernel -mno-lra works around it.

  checked that the build requirements are fulfilled in that PPA. Also
  checked that building using binutils 2.26.1 shows the same results.

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/gcc-7/+bug/1693313/+subscriptions