sparc.c (sparc_extra_constraint_check): New function, implementing EXTRA_CONSTRAINTS.
2002-04-09 David S. Miller <davem@redhat.com> * config/sparc/sparc.c (sparc_extra_constraint_check): New function, implementing EXTRA_CONSTRAINTS. For memory constraints, allow reloading pseudos. * config/sparc/sparc.h (EXTRA_CONSTRAINTS): Use it. * config/sparc/sparc-protos.h: Declare it. * config/sparc/sparc.c (const64_is_2insns): Kill signed vs. unsigned comparison warning. (output_restore_regs): Mark leaf_function as unused. From-SVN: r52080
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David S. Miller
David S. Miller
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@ -1,3 +1,15 @@
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2002-04-09 David S. Miller <davem@redhat.com>
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* config/sparc/sparc.c (sparc_extra_constraint_check): New
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function, implementing EXTRA_CONSTRAINTS. For memory constraints,
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allow reloading pseudos.
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* config/sparc/sparc.h (EXTRA_CONSTRAINTS): Use it.
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* config/sparc/sparc-protos.h: Declare it.
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* config/sparc/sparc.c (const64_is_2insns): Kill signed vs.
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unsigned comparison warning.
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(output_restore_regs): Mark leaf_function as unused.
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Tue Apr 9 09:35:45 2002 Richard Kenner <kenner@vlsi1.ultra.nyu.edu>
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* expr.c (is_aligning_offset): New function.
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@ -117,6 +117,7 @@ extern char *sparc_v8plus_shift PARAMS ((rtx *, rtx, const char *));
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32 bits of REG are 0 before INSN. */
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extern int sparc_check_64 PARAMS ((rtx, rtx));
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extern rtx gen_df_reg PARAMS ((rtx, int));
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extern int sparc_extra_constraint_check PARAMS ((rtx, char, int));
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#endif /* RTX_CODE */
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#endif /* __SPARC_PROTOS_H__ */
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@ -1861,7 +1861,7 @@ const64_is_2insns (high_bits, low_bits)
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int highest_bit_set, lowest_bit_set, all_bits_between_are_set;
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if (high_bits == 0
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|| high_bits == -1)
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|| high_bits == 0xffffffff)
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return 1;
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analyze_64bit_constant (high_bits, low_bits,
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@ -3647,7 +3647,7 @@ sparc_nonflat_function_prologue (file, size, leaf_function)
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static void
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output_restore_regs (file, leaf_function)
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FILE *file;
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int leaf_function;
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int leaf_function ATTRIBUTE_UNUSED;
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{
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int offset, n_regs;
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const char *base;
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@ -8609,3 +8609,65 @@ sparc_elf_asm_named_section (name, flags)
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fputc ('\n', asm_out_file);
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}
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#endif /* OBJECT_FORMAT_ELF */
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int
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sparc_extra_constraint_check (op, c, strict)
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rtx op;
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char c;
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int strict;
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{
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int reload_ok_mem;
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if (TARGET_ARCH64
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&& (c == 'T' || c == 'U'))
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return 0;
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switch (c)
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{
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case 'Q':
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return fp_sethi_p (op);
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case 'R':
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return fp_mov_p (op);
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case 'S':
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return fp_high_losum_p (op);
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case 'U':
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if (! strict
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|| (GET_CODE (op) == REG
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&& (REGNO (op) < FIRST_PSEUDO_REGISTER
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|| reg_renumber[REGNO (op)] >= 0)))
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return register_ok_for_ldd (op);
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return 0;
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case 'W':
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case 'T':
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break;
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default:
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return 0;
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}
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/* Our memory extra constraints have to emulate the
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behavior of 'm' and 'o' in order for reload to work
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correctly. */
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if (GET_CODE (op) == MEM)
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{
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reload_ok_mem = 0;
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if ((TARGET_ARCH64 || mem_min_alignment (op, 8))
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&& (! strict
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|| strict_memory_address_p (Pmode, XEXP (op, 0))))
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reload_ok_mem = 1;
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}
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else
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{
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reload_ok_mem = (reload_in_progress
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&& GET_CODE (op) == REG
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&& REGNO (op) >= FIRST_PSEUDO_REGISTER
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&& reg_renumber [REGNO (op)] < 0);
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}
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return reload_ok_mem;
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}
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@ -2104,12 +2104,6 @@ do { \
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'W' handles the memory operand when moving operands in/out
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of 'e' constraint floating point registers. */
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#define EXTRA_CONSTRAINT_BASE(OP, C) \
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((C) == 'Q' ? fp_sethi_p(OP) \
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: (C) == 'R' ? fp_mov_p(OP) \
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: (C) == 'S' ? fp_high_losum_p(OP) \
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: 0)
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#ifndef REG_OK_STRICT
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/* Nonzero if X is a hard reg that can be used as an index
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@ -2124,18 +2118,13 @@ do { \
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#define REG_OK_FOR_BASE_P(X) REG_OK_FOR_INDEX_P (X)
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/* 'T', 'U' are for aligned memory loads which aren't needed for arch64.
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'W' is like 'T' but is assumed true on arch64. */
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'W' is like 'T' but is assumed true on arch64.
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Remember to accept pseudo-registers for memory constraints if reload is
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in progress. */
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#define EXTRA_CONSTRAINT(OP, C) \
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(EXTRA_CONSTRAINT_BASE(OP, C) \
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|| ((! TARGET_ARCH64 && (C) == 'T') \
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? (mem_min_alignment (OP, 8)) \
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: ((! TARGET_ARCH64 && (C) == 'U') \
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? (register_ok_for_ldd (OP)) \
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: ((C) == 'W' \
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? ((TARGET_ARCH64 && GET_CODE (OP) == MEM) \
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|| mem_min_alignment (OP, 8)) \
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: 0))))
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sparc_extra_constraint_check(OP, C, 0)
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#else
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@ -2145,19 +2134,7 @@ do { \
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#define REG_OK_FOR_BASE_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
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#define EXTRA_CONSTRAINT(OP, C) \
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(EXTRA_CONSTRAINT_BASE(OP, C) \
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|| ((! TARGET_ARCH64 && (C) == 'T') \
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? mem_min_alignment (OP, 8) && strict_memory_address_p (Pmode, XEXP (OP, 0)) \
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: ((! TARGET_ARCH64 && (C) == 'U') \
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? (GET_CODE (OP) == REG \
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&& (REGNO (OP) < FIRST_PSEUDO_REGISTER \
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|| reg_renumber[REGNO (OP)] >= 0) \
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&& register_ok_for_ldd (OP)) \
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: ((C) == 'W' \
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? (((TARGET_ARCH64 && GET_CODE (OP) == MEM) \
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|| mem_min_alignment (OP, 8)) \
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&& strict_memory_address_p (Pmode, XEXP (OP, 0))) \
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: 0))))
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sparc_extra_constraint_check(OP, C, 1)
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#endif
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