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git.ipfire.org Git - thirdparty/gcc.git/commit - gcc/config/i386/i386.h
i386.c (struct ix86_address): Add seg.
* config/i386/i386.c (struct ix86_address): Add seg.
(no_seg_address_operand): New.
(ix86_decompose_address): Restructure PLUS loop. Accept one
UNSPEC_TP if TARGET_TLS_DIRECT_SEG_REFS. Adjust ESP swap test
to test for a regnum, not stack_pointer_rtx.
(ix86_address_cost): Reduce cost if non-default segment.
(legitimate_address_p): Remove UNSPEC_TP check.
(get_thread_pointer): Add to_reg argument. Don't represent
the thread pointer as a memory load.
(legitimize_tls_address): Split out of ...
(legitimize_address): ... here.
(print_operand_address): Handle parts.seg.
(ix86_expand_move): Use legitimize_tls_address.
(ix86_rtx_costs): Handle UNSPEC_TP.
* config/i386/i386.h (MASK_TLS_DIRECT_SEG_REFS): New.
(TARGET_TLS_DIRECT_SEG_REFS): New.
(TARGET_SWITCHES): Add tls-direct-seg-refs.
(TARGET_TLS_DIRECT_SEG_REFS_DEFAULT): Default.
(PREDICATE_CODES): Add no_seg_address_operand.
* config/i386/i386.md (lea_1): Use it.
(lea_1_rex64, lea_1_zext, lea_2_rex64): Likewise.
(load_tp_si, add_tp_si, load_tp_di, add_tp_di): New.
* config/i386/linux.h (TARGET_TLS_DIRECT_SEG_REFS_DEFAULT): New.
* config/i386/linux64.h (TARGET_TLS_DIRECT_SEG_REFS_DEFAULT): New.
* doc/invoke.texi: Add -mtls-direct-seg-refs.
From-SVN: r67475