2004-04-29 Andreas Krebbel <krebbel1@de.ibm.com>
ChangeLog:
* config/s390/s390-protos.h (s390_emit_epilogue): Parameter added.
(s390_emit_call): New function prototype added.
(s390_tls_get_offset): Function removed.
* config/s390/s390.c (s390_function_ok_for_sibcall,
s390_call_saved_register_used_p): New functions.
(TARGET_FUNCTION_OK_FOR_SIBCALL): Definition of target macro added.
(s390_tls_get_offset): Function merged into s390_emit_tls_call_insn.
(s390_emit_tls_call_insn): New function.
(legitimize_tls_address): Call s390_emit_tls_call_insn instead of
emit_call_insn.
(s390_emit_prologue): Use s390_emit_call instead of emit_call_insn.
(s390_emit_epilogue): Like s390_emit_prologue. Parameter for sibcalls
added.
* config/s390/s390.h (SIBCALL_REGNUM): New macro representing the
register number used to hold the target address for sibcalls.
* config/s390/s390.md ("sibcall", "sibcall_value", "sibcall_epilogue"):
New expanders.
("*sibcall_br", "*sibcall_brc", "*sibcall_brcl", "*sibcall_value_br",
"*sibcall_value_brc", "*sibcall_value_brcl"): New insns.
("call_exp", "call_value_exp", "call_value_tls", "call_value_tls_exp"):
Expanders removed.
("call", "call_value"): Call s390_emit_call to emit the call patterns.
("*bras", "*brasl", "*bras_r", "*brasl_r", "*bras_tls", "*brasl_tls",
"*basr", "*basr_r", "*basr_tls"): Added constraint: !SIBLING_CALL_P.
("epilogue"): Changed the call to s390_emit_epilogue to use the
new parameter.
testsuite/ChangeLog:
* gcc.dg/sibcall-3.c: Delete s390 from expected fail list.
* gcc.dg/sibcall-4.c: Likewise.
* gcc.dg/sibcall-6.c: Enable s390 as test platform.
From-SVN: r81347
