Commit ChangeLog entry that I failed to commit for a previous change.
From-SVN: r66867
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@ -133,6 +133,61 @@
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(logsf2, logdf2, logxf2, logtf2): Update expander patterns to match
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the corresponding *fyl2x_?fxf3 instructions.
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2003-05-14 Bob Wilson <bob.wilson@acm.org>
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* config/xtensa/lib2funcs.S (TRAMPOLINE_SIZE): Change from 49 to 59.
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* config/xtensa/xtensa-config.h (XCHAL_HAVE_CONST16,
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XCHAL_HAVE_L32R): New.
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* config/xtensa/xtensa-protos.h (non_const_move_operand,
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xtensa_load_constant, xtensa_function_prologue,
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xtensa_function_epilogue): Delete prototypes.
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(xtensa_expand_prologue): New.
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* config/xtensa/xtensa.c (frame_size_const,
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TARGET_ASM_FUNCTION_PROLOGUE, TARGET_MACHINE_DEPENDENT_REORG,
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non_const_move_operand, xtensa_load_constant, xtensa_reorg,
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xtensa_function_prologue): Delete.
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(add_operand, xtensa_mem_offset): Formatting.
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(move_operand): If the const16 option is available, allow any SFmode
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and SImode constants.
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(xtensa_emit_move_sequence): Inline the former contents of
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xtensa_load_constant with modifications to handle the const16 option.
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(override_options): Add xtensa_char_to_class['W'] and set it to
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the general register class only if the const16 option is enabled.
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Fix formatting. Disallow PIC when using the const16 option.
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(print_operand): Reorganize to switch on "letter" instead of the
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RTL code. Add output_operand_lossage calls for invalid cases.
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Add support for 't' and 'b' letters.
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(xtensa_expand_prologue): New function to replace
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xtensa_function_prologue and xtensa_reorg.
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(xtensa_function_epilogue): Declare this as static. Delete code
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to print the retw.n or retw instruction.
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(xtensa_return_addr): Use A0_REG instead of 0.
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(xtensa_rtx_costs): Add costs for using the const16 option.
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* config/xtensa/xtensa.h (MASK_CONST16, TARGET_CONST16): New.
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(TARGET_DEFAULT): Add CONST16 if L32R instructions not available.
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(TARGET_SWITCHES): Add "const16" and "no-const16".
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(REG_CLASS_FROM_LETTER): Add comment about new 'W' letter.
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(EXTRA_CONSTRAINT): Change 'T' constraint to only apply when not
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using the const16 option.
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(TRAMPOLINE_TEMPLATE): Rewrite to avoid hardwired use of l32r insn.
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(TRAMPOLINE_SIZE): Change from 49 to 59.
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(INITIALIZE_TRAMPOLINE): Adjust offsets to match new trampoline.
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(GO_IF_LEGITIMATE_ADDRESS): Do not allow constant pool addresses
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when using the const16 option.
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(PREDICATE_CODES): Delete non_const_move_operand.
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* config/xtensa/xtensa.md (define_constants): Add A1_REG, A8_REG, and
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UNSPECV_ENTRY.
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(movdi, movdf): If the source is a constant, always expand to a
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sequence of movsi insns.
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(movdi_internal, movdf_internal): Remove alternative using l32r insns.
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(movsi_internal, movsf_internal): Add alternative using const16 insns.
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(movsf): Add const16 support.
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(entry, prologue, epilogue): New.
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(set_frame_ptr): Add missing mode for unspec_volatile operation.
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Likewise for subsequent split pattern.
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* doc/invoke.texi (Option Summary, Xtensa Options): Document new
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"-mconst16" and "-mno-const16" options.
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2003-05-14 Richard Henderson <rth@redhat.com>
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* config/ia64/ia64.c (ia64_expand_load_address): Force destination
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