Marcin KoÅcielnicki wrote: > libgcc/ChangeLog: > > * config.host: Use t-stack and t-stack-s390 for s390*-*-linux. > * config/s390/morestack.S: New file. > * config/s390/t-stack-s390: New file. > * generic-morestack.c (__splitstack_find): Add s390-specific code. > > gcc/ChangeLog: > > * common/config/s390/s390-common.c (s390_supports_split_stack): > New function. > (TARGET_SUPPORTS_SPLIT_STACK): New macro. > * config/s390/s390-protos.h: Add s390_expand_split_stack_prologue. > * config/s390/s390.c (struct machine_function): New field > split_stack_varargs_pointer. > (s390_register_info): Mark r12 as clobbered if it'll be used as temp > in s390_emit_prologue. > (s390_emit_prologue): Use r12 as temp if r1 is taken by split-stack > vararg pointer. > (morestack_ref): New global. > (SPLIT_STACK_AVAILABLE): New macro. > (s390_expand_split_stack_prologue): New function. > (s390_live_on_entry): New function. > (s390_va_start): Use split-stack vararg pointer if appropriate. > (s390_asm_file_end): Emit the split-stack note sections. > (TARGET_EXTRA_LIVE_ON_ENTRY): New macro. > * config/s390/s390.md (UNSPEC_STACK_CHECK): New unspec. > (UNSPECV_SPLIT_STACK_CALL): New unspec. > (UNSPECV_SPLIT_STACK_DATA): New unspec. > (split_stack_prologue): New expand. > (split_stack_space_check): New expand. > (split_stack_data): New insn. > (split_stack_call): New expand. > (split_stack_call_*): New insn. > (split_stack_cond_call): New expand. > (split_stack_cond_call_*): New insn. > --- > Changes applied. Testsuite still running, still works on my simple tests. > > As for common code prerequisites: #3 is no longer needed, and very likely > so is #4 (it fixes problems that I've only seen with ESA mode, and testsuite > runs just fine without it now).
OK, I see. The patch is OK for mainline then, assuming testing passes. Thanks again, Ulrich -- Dr. Ulrich Weigand GNU/Linux compilers and toolchain ulrich.weig...@de.ibm.com
