https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86461
Martin Sebor <msebor at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |ASSIGNED
Last reconfirmed| |2018-07-10
Component|middle-end |testsuite
Assignee|unassigned at gcc dot gnu.org |msebor at gcc dot
gnu.org
Ever confirmed|0 |1
--- Comment #1 from Martin Sebor <msebor at gcc dot gnu.org> ---
r262522 tightens up the test to verify that all calls to strlen() are
eliminated. This is also what happens at all optimization levels for the
x86_64-linux target but not for powerpc64 where at -Og the optimized dump
shows:
<bb 8> [local count: 214748365]:
_10 = _3 + 1;
x = _10;
x.9_11 = (unsigned int) _3;
_20 = x.9_11 & 7;
_12 = (sizetype) _20;
_13 = &larger + _12;
_14 = strlen (_13);
if (_14 != 5)
goto <bb 9>; [0.00%]
else
goto <bb 10>; [99.96%]
<bb 9> [count: 0]:
abort ();
Besides fixing the test (the runtime test harness ignored dg-options in these
tests) I need to figure out what prevents the folding at -Og.
