[Bug rtl-optimization/87485] [9 Regression] Compile time hog w/ -O2 -fschedule-insns -fno-guess-branch-probability -fno-isolate-erroneous-paths-dereference -fno-omit-frame-pointer -fno-split-wide-types -fno-tree-ccp -fno-tree-sra

jakub at gcc dot gnu.org gcc-bugzilla@gcc.gnu.org
Fri Nov 16 11:43:00 GMT 2018


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87485

Jakub Jelinek <jakub at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |jakub at gcc dot gnu.org

--- Comment #5 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
Can't reproduce either:
/opt/notnfs/gcc-bisect/obj/gcc/cc1.264727 -quiet -O2 -fschedule-insns
-fno-guess-branch-probability -fno-isolate-erroneous-paths-dereference
-fno-omit-frame-pointer -fno-split-wide-types -fno-tree-ccp -fno-tree-sra
pr87485.c
pr87485.c: In function ‘c8’:
pr87485.c:19:23: warning: division by zero [-Wdiv-by-zero]
19 |       *xh += fl < (e4 / 0);
   |                       ^
finishes instantly.


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