https://gcc.gnu.org/bugzilla/show_bug.cgi?id=86486
--- Comment #7 from Tamar Christina <tnfchris at gcc dot gnu.org> --- Author: tnfchris Date: Mon Oct 1 13:05:30 2018 New Revision: 264754 URL: https://gcc.gnu.org/viewcvs?rev=264754&root=gcc&view=rev Log: Cleanup the AArch64 testsuite when stack-clash is on. This patch cleans up the testsuite when a run is done with stack clash protection turned on. Concretely this switches off -fstack-clash-protection for a couple of tests: * assembler scan: some tests are quite fragile in that they check for exact assembly output, e.g. check for exact amount of sub etc. These won't match now. * vla: Some of the ubsan tests negative array indices. Because the arrays weren't used before the incorrect $sp wouldn't have been used. The correct value is restored on ret. Now however we probe the $sp which causes a segfault. * params: When testing the parameters we have to skip these on AArch64 because of our custom constraints on them. We already test them separately so this isn't a loss. Note that the testsuite is not entire clean due to gdb failure caused by alloca with stack clash. On AArch64 we output an incorrect .loc directive, but this is already the case with the current implementation in GCC and is a bug unrelated to this patch series. gcc/testsuite/ PR target/86486 * gcc.dg/pr82788.c: Skip for AArch64. * gcc.dg/guality/vla-1.c: Turn off stack-clash. * gcc.target/aarch64/subsp.c: Likewise. * gcc.dg/params/blocksort-part.c: Skip stack-clash checks on AArch64. * gcc.dg/stack-check-10.c: Add AArch64 specific checks. * gcc.dg/stack-check-12.c: ILP32 fixup. * gcc.dg/stack-check-5.c: Add AArch64 specific checks. * gcc.dg/stack-check-6a.c: Skip on AArch64, we don't support this. * testsuite/lib/target-supports.exp (check_effective_target_frame_pointer_for_non_leaf): AArch64 does not require frame pointer for non-leaf functions. Modified: trunk/gcc/testsuite/ChangeLog trunk/gcc/testsuite/c-c++-common/ubsan/vla-1.c trunk/gcc/testsuite/gcc.dg/params/blocksort-part.c trunk/gcc/testsuite/gcc.dg/pr82788.c trunk/gcc/testsuite/gcc.dg/stack-check-10.c trunk/gcc/testsuite/gcc.dg/stack-check-5.c trunk/gcc/testsuite/gcc.dg/stack-check-6a.c trunk/gcc/testsuite/gcc.target/aarch64/stack-check-12.c trunk/gcc/testsuite/gcc.target/aarch64/subsp.c trunk/gcc/testsuite/lib/target-supports.exp
