https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91626
Richard Biener <rguenth at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Assignee|hubicka at gcc dot gnu.org |matz at gcc dot gnu.org
Component|lto |testsuite
Priority|P3 |P2
CC| |hubicka at gcc dot gnu.org
--- Comment #6 from Richard Biener <rguenth at gcc dot gnu.org> ---
Micha you added the testcase - it probably fails on hppa64-hpux since
introudction(?) and I don't see how it can link since nothing provides
ashift_qi_1. On x86 we somehow optimize the program to
main:
.LFB0:
.cfi_startproc
subq $8, %rsp
.cfi_def_cfa_offset 16
call abort
but only during RTL opts. Likely because .optimized:
<bb 2> [local count: 1073741824]:
if (_28(D) != 255)
goto <bb 3>; [0.00%]
else
goto <bb 4>; [100.00%]
<bb 3> [count: 0]:
abort ();
so somehow the UNDEF is simplified (possibly becomes zero through init-regs
or so) but not on hppa.
I think the issue lies in the testcase which either should be changed
to build a shared object or provide a definition of ashift_qi_1.
Verifying it still tests what it was supposed to.
