https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84332
--- Comment #3 from Andreas Krebbel <krebbel at gcc dot gnu.org> --- Author: krebbel Date: Thu Aug 9 07:06:23 2018 New Revision: 263441 URL: https://gcc.gnu.org/viewcvs?rev=263441&root=gcc&view=rev Log: S/390: Fix PR84332 ICE with stack clash protection Our implementation of the stack probe requires the probe interval to be used as displacement in an address operand. The maximum probe interval currently is 64k. This would exceed short displacements. Trim that value down to 4k if that happens. This might result in too many probes being generated only on the oldest supported machine level z900. gcc/ChangeLog: 2018-08-09 Andreas Krebbel <kreb...@linux.ibm.com> PR target/84332 * config/s390/s390.c (s390_option_override_internal): Reduce the stack-clash-protection-probe-interval param if it would be too big for z900. gcc/testsuite/ChangeLog: 2018-08-09 Andreas Krebbel <kreb...@linux.ibm.com> PR target/84332 * gcc.target/s390/pr84332.c: New testcase. Added: trunk/gcc/testsuite/gcc.target/s390/pr84332.c Modified: trunk/gcc/ChangeLog trunk/gcc/config/s390/s390.c trunk/gcc/testsuite/ChangeLog
