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
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https://bugs.launchpad.net/bugs/1693313
Title:
gcc-7 fails to build on ppc64el in 14.04 LTS
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