+2010-06-15 Alan Modra <amodra@gmail.com>
+
+ * doc/invoke.texi: Add mcmodel to powerpc options.
+ * configure.ac: Add HAVE_LD_LARGE_TOC test.
+ * configure: Regenerate.
+ * config.in: Regenerate.
+ * config/rs6000/linux64.opt (mcmodel): New.
+ * config/rs6000/linux64.h (TARGET_USES_LINUX64_OPT): Define.
+ (TARGET_CMODEL): Define.
+ (SUBSUBTARGET_OVERRIDE_OPTIONS): Check user -mcmodel choice,
+ select CMODEL_MEDIUM default.
+ * config/rs6000/rs6000.h (enum rs6000_cmodel): New.
+ (TARGET_CMODEL): Define default.
+ * config/rs6000/rs6000.c (cmodel): New variable.
+ (rs6000_explicit_options): Add cmodel field.
+ (rs6000_handle_option): Handle -mcmodel.
+ (create_TOC_reference): Add largetoc_reg param. Generate high,
+ lo_sum rtl for CMODEL_MEDIUM and CMODEL_LARGE. Update all callers.
+ (rs6000_delegitimize_address): Recognise new toc reference rtl
+ and minimal-toc rtl.
+ (rs6000_legitimize_reload_address): Handle new toc references.
+ (print_operand_address): Handle legitimate_constant_pool_address_p
+ match before lo_sum.
+ (rs6000_eliminate_indexed_memrefs): Tidy.
+ (rs6000_emit_move): Tweak threshold for inlining constants.
+ Keep rs6000_emit_allocate_stack large stack frame offsets
+ loaded into r0 inline.
+ (rs6000_generate_compare <cmptf_internal2>): One more clobber.
+ (tocrel_base, tocrel_offset): New variables.
+ (toc_relative_expr_p): Set them here.
+ (print_operand_address): Skip over any offset on constant pool
+ address.
+ (rs6000_output_addr_const_extra): Print tocrel_offset before @toc.
+ (rs6000_mode_dependent_address <LO_SUM>): False for new toc refs.
+ (offsettable_ok_by_alignment): New function.
+ (rs6000_emit_move): Address suitably aligned local symbol_refs
+ relative to the toc pointer for -mcmodel=medium.
+ (legitimate_constant_pool_address_p): Make param const_rtx. Add
+ strict param. Allow lo_sum version of addressing. Verify reg
+ used for -mminimal-toc and -mcmodel != small. Update all callers.
+ * config/rs6000/constraints.md: Update for above change.
+ * config/rs6000/predicates.md: Likewise.
+ * config/rs6000/rs6000.md (tls_gd_aix): Generate -mcmodel=medium/large
+ code.
+ (tls_gd): Split for -mcmodel=medium/large.
+ (tls_gd_high, tls_gd_low): New.
+ (tls_ld_aix, tls_ld, tls_ld_high, tls_ld_low): Similarly.
+ (tls_got_dtprel, tls_got_dtprel_high, tls_got_dtprel_low): Similarly.
+ (tls_got_tprel, tls_got_tprel_high, tls_got_tprel_low): Similarly.
+ (largetoc_high, largetoc_low): New.
+ (cmptf_internal2): Add clobber.
+ * config/rs6000/rs6000-protos.h: Update.
+
2010-06-14 Changpeng Fang <changpeng.fang@amd.com>
* tree-ssa-loop-prefetch.c (nothing_to_prefetch_p): New. Return
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