On 11/19/23 00:30, Alexandre Oliva wrote:
I've recently patched scev-3.c and scev-5.c because it only passed by
accident on ia32. It also fails on some (but not all) arm-eabi
variants. It seems hard to characterize the conditions in which the
optimization is supposed to pass, but expecting them to fail on ilp32
targets, though probably a little excessive and possibly noisy, is not
quite as alarming as getting a fail in test reports, so I propose
changing the xfail marker from ia32 to ilp32.
I'm also proposing to add a similar marker to scev-4.c. Though it
doesn't appear to be failing for me, I've got reports that suggest it
still does for others, and it certainly did for us as well.
Regstrapped on x86_64-linux-gnu, also tested on arm-eabi with default
cpu on trunk, and with tms570 on gcc-13. Ok to install?
for gcc/testsuite/ChangeLog
* gcc.dg/tree-ssa/scev-3.c: xfail on all ilp32 targets,
though some of these do pass.
* gcc.dg/tree-ssa/scev-4.c: Likewise.
* gcc.dg/tree-ssa/scev-5.c: Likewise.
OK. Though hopefully someone will figure out what properties actually
cause the differences so that we can do the right thing without the
noisy XPASS at some point.
jeff
