[Bug target/81535] [8 regression] gcc.target/powerpc/pr79439.c fails starting with r250442

[willschm at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81535

Will Schmidt <willschm at gcc dot gnu.org> changed:

           What    |Removed                     |Added
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                 CC|                            |willschm at gcc dot gnu.org

--- Comment #10 from Will Schmidt <willschm at gcc dot gnu.org> ---
(In reply to seurer from comment #9)
> Just an FYI that the output of this test case changed a bit somewhere in the
> range r256987 to r257017:
> 
> Now it gets this:
> 
> FAIL: gcc.target/powerpc/pr79439.c scan-assembler-times \\mbl g\\M 1 (found
> 2 times)
> 
> previously it failed with this:
> 
> FAIL: gcc.target/powerpc/pr79439.c scan-assembler-times \\mnop\\M 3 (found 2
> times)

I looked briefly.  Per the generated assembly, the "bl g" check is failing
because the branch to 'g' now occurs twice in the generated code.  (occurs with
-O2, unless -fdisable-tree-early_optimizations is specified)  The "
scan-assembler-times 'nop' 3 " now passes, but that is only due to the
additional nop associated with the extra branch to 'g'.