[Bug ipa/88900] [9 Regression] 502.gcc_r SPEC benchmark miscompiles with LTO and PGO

[marxin at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88900

Martin Liška <marxin at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|needs-bisection             |
             Status|NEW                         |ASSIGNED
           Assignee|unassigned at gcc dot gnu.org      |marxin at gcc dot gnu.org

--- Comment #5 from Martin Liška <marxin at gcc dot gnu.org> ---
Started with r263875:

Setting Up Run Directories
  Setting up 502.gcc_r refrate (ref) peak gcc7-m64 (1 copy):
run_peak_refrate_gcc7-m64.0002
Running Benchmarks
  Running 502.gcc_r refrate (ref) peak gcc7-m64 (1 copy) [2019-01-18 15:34:36]
Error with '/home/marxin/Programming/cpu2017/bin/specinvoke -d
/home/marxin/Programming/cpu2017/benchspec/CPU/502.gcc_r/run/run_peak_refrate_gcc7-m64.0002
-f compare.cmd -E -e compare.err -o compare.stdout'; no non-empty output files
exist
  Command returned exit code 1
****************************************
Contents of gcc-pp.opts-O2_-finline-limit_36000_-fpic.err
****************************************
gcc-pp.c: In function 'fibheap_delete_node':
gcc-pp.c:19958:49: warning: overflow in implicit constant conversion
gcc-pp.c: In function 'htab_mod_1':
gcc-pp.c:25469:7: warning: right shift count >= width of type
gcc-pp.c: At top level:
gcc-pp.c:463503:13: warning: 'compute_transp' used but never defined
gcc-pp.c:463518:12: warning: 'one_cprop_pass' used but never defined
gcc-pp.c:463534:12: warning: 'one_pre_gcse_pass' used but never defined
gcc-pp.c:463542:12: warning: 'one_code_hoisting_pass' used but never defined
gcc-pp.c:463551:25: warning: 'find_rtx_in_ldst' used but never defined
gcc-pp.c:463579:13: warning: 'store_motion' used but never defined
gcc-pp.c:463582:13: warning: 'free_modify_mem_tables' used but never defined
gcc-pp.c:463588:22: warning: 'is_too_expensive' used but never defined

****************************************
****************************************
Contents of
gcc-pp.opts-O3_-finline-limit_0_-fif-conversion_-fif-conversion2.err
****************************************
gcc-pp.c: In function 'fibheap_delete_node':
gcc-pp.c:19958:49: warning: overflow in implicit constant conversion
gcc-pp.c: In function 'htab_mod_1':
gcc-pp.c:25469:7: warning: right shift count >= width of type
gcc-pp.c: At top level:
gcc-pp.c:463503:13: warning: 'compute_transp' used but never defined
gcc-pp.c:463518:12: warning: 'one_cprop_pass' used but never defined
gcc-pp.c:463534:12: warning: 'one_pre_gcse_pass' used but never defined
gcc-pp.c:463542:12: warning: 'one_code_hoisting_pass' used but never defined
gcc-pp.c:463551:25: warning: 'find_rtx_in_ldst' used but never defined
gcc-pp.c:463579:13: warning: 'store_motion' used but never defined
gcc-pp.c:463582:13: warning: 'free_modify_mem_tables' used but never defined
gcc-pp.c:463588:22: warning: 'is_too_expensive' used but never defined

****************************************
****************************************
Contents of gcc-smaller.opts-O3_-fipa-pta.err
****************************************
gcc-smaller.c: In function 'fibheap_delete_node':
gcc-smaller.c:19958:49: warning: overflow in implicit constant conversion
gcc-smaller.c: In function 'htab_mod_1':
gcc-smaller.c:25469:7: warning: right shift count >= width of type

****************************************
****************************************
Contents of ref32.opts-O3_-fselective-scheduling_-fselective-scheduling2.err
****************************************
ref32.c:6213:17: warning: conflicting types for built-in function 'imaxabs'

****************************************
****************************************
Contents of ref32.opts-O5.err
****************************************
ref32.c:6213:17: warning: conflicting types for built-in function 'imaxabs'

****************************************
*** Miscompare of gcc-smaller.opts-O3_-fipa-pta.s; for details see
   
/home/marxin/Programming/cpu2017/benchspec/CPU/502.gcc_r/run/run_peak_refrate_gcc7-m64.0002/gcc-smaller.opts-O3_-fipa-pta.s.mis
*** Miscompare of gcc-pp.opts-O2_-finline-limit_36000_-fpic.s; for details see
   
/home/marxin/Programming/cpu2017/benchspec/CPU/502.gcc_r/run/run_peak_refrate_gcc7-m64.0002/gcc-pp.opts-O2_-finline-limit_36000_-fpic.s.mis
*** Miscompare of
gcc-pp.opts-O3_-finline-limit_0_-fif-conversion_-fif-conversion2.s; for details
see
   
/home/marxin/Programming/cpu2017/benchspec/CPU/502.gcc_r/run/run_peak_refrate_gcc7-m64.0002/gcc-pp.opts-O3_-finline-limit_0_-fif-conversion_-fif-conversion2.s.mis

I'll work on that next week and I'll try find the problem.