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+2006-09-07 Eric Christopher <echristo@apple.com>
+ Falk Hueffner <falk@debian.org>
+
+ * doc/extend.texi (__builtin_bswap32): Document.
+ (__builtin_bswap64): Ditto.
+ * doc/libgcc.texi (bswapsi2): Document.
+ (bswapdi2): Ditto.
+ * doc/rtl.texi (bswap): Document.
+ * optabs.c (expand_unop): Don't widen a bswap.
+ (init_optabs): Init bswap. Set libfuncs explicitly
+ for bswapsi2 and bswapdi2.
+ * optabs.h (OTI_bswap): New.
+ (bswap_optab): Ditto.
+ * genopinit.c (optabs): Handle bswap_optab.
+ * tree.h (tree_index): Add TI_UINT32_TYPE and
+ TI_UINT64_TYPE.
+ (uint32_type_node): New.
+ (uint64_type_node): Ditto.
+ * tree.c (build_common_tree_nodes_2): Initialize
+ uint32_type_node and uint64_type_node.
+ * builtins.c (expand_builtin_bswap): New.
+ (expand_builtin): Call.
+ (fold_builtin_bswap): New.
+ (fold_builtin_1): Call.
+ * fold-const.c (tree_expr_nonnegative_p): Return true
+ for bswap.
+ * builtin-types.def (BT_UINT32): New.
+ (BT_UINT64): Ditto.
+ (BT_FN_UINT32_UINT32): Ditto.
+ (BT_FN_UINT64_UINT64): Ditto.
+ * builtins.def (BUILT_IN_BSWAP32): New.
+ (BUILT_IN_BSWAP64): Ditto.
+ * rtl.def (BSWAP): New.
+ * genattrtab.c (check_attr_value): New.
+ * libgcc2.c (__bswapSI2): New.
+ (__bswapDI2): Ditto.
+ * libgcc2.h (__bswapSI2): Declare.
+ (__bswapDI2): Ditto.
+ * mklibgcc.in (lib2funcs): Add _bswapsi2 and _bswapdi2.
+ * simplify-rtx.c (simplify_const_unary_operation): Return
+ 0 for BSWAP.
+ * libgcc-std.ver (__bwapsi2): Add.
+ (__bswapdi2): Ditto.
+ * reload1.c (eliminate_regs_1): Add bswap.
+ (elimination_effects): Ditto.
+ * config/i386/i386.h (x86_bswap): New.
+ (TARGET_BSWAP): Use.
+ * config/i386/i386.c (x86_bswap): Set.
+
2006-10-31 Geoffrey Keating <geoffk@apple.com>
* coverage.c (coverage_checksum_string): Update comment.