[Bug gcov-profile/96970] New: -fprofile-arcs compiled binaries are not reproducible

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96970

            Bug ID: 96970
           Summary: -fprofile-arcs compiled binaries are not reproducible
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: gcov-profile
          Assignee: unassigned at gcc dot gnu.org
          Reporter: rguenth at gcc dot gnu.org
                CC: marxin at gcc dot gnu.org
  Target Milestone: ---

> cat t.c
int main(){}
> gcc-10 t.c -fprofile-arcs -S
> mv t.s t.sx
> gcc-10 t.c -fprofile-arcs -S
> diff -u t.sx t.s
--- t.sx        2020-09-08 11:13:32.084430676 +0200
+++ t.s 2020-09-08 11:13:33.284444190 +0200
@@ -46,7 +46,7 @@
        .long   1110454826
        .zero   4
        .quad   0
-       .long   1828240311
+       .long   1828579168
        .zero   4
        .quad   .LC0
        .quad   __gcov_merge_add