[Bug target/62013] New: [4.8/4.9 Regresion] cc1plus doesn't terminate when called with -g on arm-linux-gnueabihf

[Bug target/62013] New: [4.8/4.9 Regresion] cc1plus doesn't terminate when called with -g on arm-linux-gnueabihf

[doko at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62013

            Bug ID: 62013
           Summary: [4.8/4.9 Regresion] cc1plus doesn't terminate when
                    called with -g on arm-linux-gnueabihf
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: target
          Assignee: unassigned at gcc dot gnu.org
          Reporter: doko at gcc dot gnu.org

Created attachment 33243
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=33243&action=edit
test case

seen on the 4.8 and 4.9 branch, cc1plus doesn't terminate. omitting the -g lets
the command succeed.

$ g++ -v -std=c++0x -c -g -O2 qmltextgenerator.cpp


Program received signal SIGINT, Interrupt.
0x0054920c in canonicalize_values_star(variable_def**, dataflow_set_def*) ()
(gdb) bt
#0  0x0054920c in canonicalize_values_star(variable_def**, dataflow_set_def*)
    ()
#1  0x0054b0c2 in ?? ()
#2  0x0054ca08 in ?? ()
#3  0x0054d8ba in ?? ()
#4  0x0039928a in execute_one_pass(opt_pass*) ()
#5  0x00399448 in execute_pass_list(opt_pass*) ()
#6  0x00399452 in execute_pass_list(opt_pass*) ()
#7  0x00399452 in execute_pass_list(opt_pass*) ()
#8  0x00244a8c in ?? ()
#9  0x00245ca4 in compile() ()
#10 0x00246030 in finalize_compilation_unit() ()
#11 0x00158fc4 in cp_write_global_declarations() ()
#12 0x00409394 in ?? ()
#13 0x0040aad0 in toplev_main(int, char**) ()
#14 0xb6d4f630 in __libc_start_main (main=0x111e19 <main>, argc=26, 
    argv=0xbefff604, init=<optimized out>, fini=0x7b2af5 <__libc_csu_fini>, 
    rtld_fini=0xb6fe24e5 <_dl_fini>, stack_end=0xbefff604) at libc-start.c:287
#15 0x00112058 in _start ()

defaults are -march=armv7-a -mfloat-abi=hard -mfpu=vfpv3-d16 -mthumb

[Bug target/62013] [4.8/4.9 Regresion] cc1plus doesn't terminate when called with -g on arm-linux-gnueabihf

[ktkachov at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62013

ktkachov at gcc dot gnu.org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
                 CC|                            |ktkachov at gcc dot gnu.org
         Resolution|---                         |DUPLICATE

--- Comment #1 from ktkachov at gcc dot gnu.org ---
I'm willing to bet this is a duplicate of 61033 that also involves a
qmltextgenerator.ii preprocessed reproducer file ;)

It goes into an infinite loop for me on arm-none-eabi with 4.9 and passes with
current trunk. Didn't try 4.8, I expect it fails there like you say.

I don't remember if it was fixed in trunk and the fix not backported or just
made latent.

*** This bug has been marked as a duplicate of bug 61033 ***