4fe6dea8ff
2009-07-22 Andreas Krebbel <krebbel1@de.ibm.com>
* config/s390/constraints.md (ZQ, ZR, ZS, ZT): New constraints.
(U, W): Constraints are now deprecated and will be removed if we
run out of letters.
* config/s390/s390.md (U, W): Replaced with ZQZR, ZSZT throughout
the file.
("prefetch"): Add the stcmh instruction for prefetching.
* config/s390/s390.c (s390_symref_operand_p): Function moved. No
changes.
(s390_short_displacement): Return always true if compiling for
machines not providing the long displacement facility.
(s390_mem_constraint): Support the new constraint letter Z.
(s390_check_qrst_address): New function.
From-SVN: r149917
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