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Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/i386/predicates.md')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/config/i386/predicates.md | 1037 |
1 files changed, 0 insertions, 1037 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/i386/predicates.md b/gcc-4.2.1-5666.3/gcc/config/i386/predicates.md deleted file mode 100644 index f988d11e4..000000000 --- a/gcc-4.2.1-5666.3/gcc/config/i386/predicates.md +++ /dev/null @@ -1,1037 +0,0 @@ -;; Predicate definitions for IA-32 and x86-64. -;; Copyright (C) 2004, 2005, 2006 Free Software Foundation, Inc. -;; -;; This file is part of GCC. -;; -;; GCC is free software; you can redistribute it and/or modify -;; it under the terms of the GNU General Public License as published by -;; the Free Software Foundation; either version 2, or (at your option) -;; any later version. -;; -;; GCC is distributed in the hope that it will be useful, -;; but WITHOUT ANY WARRANTY; without even the implied warranty of -;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -;; GNU General Public License for more details. -;; -;; You should have received a copy of the GNU General Public License -;; along with GCC; see the file COPYING. If not, write to -;; the Free Software Foundation, 51 Franklin Street, Fifth Floor, -;; Boston, MA 02110-1301, USA. - -;; Return nonzero if OP is either a i387 or SSE fp register. -(define_predicate "any_fp_register_operand" - (and (match_code "reg") - (match_test "ANY_FP_REGNO_P (REGNO (op))"))) - -;; Return nonzero if OP is an i387 fp register. -(define_predicate "fp_register_operand" - (and (match_code "reg") - (match_test "FP_REGNO_P (REGNO (op))"))) - -;; Return nonzero if OP is a non-fp register_operand. -(define_predicate "register_and_not_any_fp_reg_operand" - (and (match_code "reg") - (not (match_test "ANY_FP_REGNO_P (REGNO (op))")))) - -;; Return nonzero if OP is a register operand other than an i387 fp register. -(define_predicate "register_and_not_fp_reg_operand" - (and (match_code "reg") - (not (match_test "FP_REGNO_P (REGNO (op))")))) - -;; True if the operand is an MMX register. -(define_predicate "mmx_reg_operand" - (and (match_code "reg") - (match_test "MMX_REGNO_P (REGNO (op))"))) - -;; True if the operand is a Q_REGS class register. -(define_predicate "q_regs_operand" - (match_operand 0 "register_operand") -{ - if (GET_CODE (op) == SUBREG) - op = SUBREG_REG (op); - return ANY_QI_REG_P (op); -}) - -;; Return true if op is a NON_Q_REGS class register. -(define_predicate "non_q_regs_operand" - (match_operand 0 "register_operand") -{ - if (GET_CODE (op) == SUBREG) - op = SUBREG_REG (op); - return NON_QI_REG_P (op); -}) - -;; Match an SI or HImode register for a zero_extract. -(define_special_predicate "ext_register_operand" - (match_operand 0 "register_operand") -{ - if ((!TARGET_64BIT || GET_MODE (op) != DImode) - && GET_MODE (op) != SImode && GET_MODE (op) != HImode) - return 0; - if (GET_CODE (op) == SUBREG) - op = SUBREG_REG (op); - - /* Be careful to accept only registers having upper parts. */ - return REGNO (op) > LAST_VIRTUAL_REGISTER || REGNO (op) < 4; -}) - -;; Return true if op is the AX register. -(define_predicate "ax_reg_operand" - (and (match_code "reg") - (match_test "REGNO (op) == 0"))) - -;; Return true if op is the flags register. -(define_predicate "flags_reg_operand" - (and (match_code "reg") - (match_test "REGNO (op) == FLAGS_REG"))) - -;; APPLE LOCAL begin 5612787 mainline sse4 -;; Return true if op is not xmm0 register. -(define_predicate "reg_not_xmm0_operand" - (and (match_operand 0 "register_operand") - (match_test "GET_CODE (op) != REG - || REGNO (op) != FIRST_SSE_REG"))) - -;; As above, but allow nonimmediate operands. -(define_predicate "nonimm_not_xmm0_operand" - (and (match_operand 0 "nonimmediate_operand") - (match_test "GET_CODE (op) != REG - || REGNO (op) != FIRST_SSE_REG"))) -;; APPLE LOCAL end 5612787 mainline sse4 - -;; Return 1 if VALUE can be stored in a sign extended immediate field. -(define_predicate "x86_64_immediate_operand" - (match_code "const_int,symbol_ref,label_ref,const") -{ - if (!TARGET_64BIT) - return immediate_operand (op, mode); - - switch (GET_CODE (op)) - { - case CONST_INT: - /* CONST_DOUBLES never match, since HOST_BITS_PER_WIDE_INT is known - to be at least 32 and this all acceptable constants are - represented as CONST_INT. */ - if (HOST_BITS_PER_WIDE_INT == 32) - return 1; - else - { - HOST_WIDE_INT val = trunc_int_for_mode (INTVAL (op), DImode); - return trunc_int_for_mode (val, SImode) == val; - } - break; - - case SYMBOL_REF: - /* For certain code models, the symbolic references are known to fit. - in CM_SMALL_PIC model we know it fits if it is local to the shared - library. Don't count TLS SYMBOL_REFs here, since they should fit - only if inside of UNSPEC handled below. */ - /* TLS symbols are not constant. */ - if (SYMBOL_REF_TLS_MODEL (op)) - return false; - return (ix86_cmodel == CM_SMALL || ix86_cmodel == CM_KERNEL - || (ix86_cmodel == CM_MEDIUM && !SYMBOL_REF_FAR_ADDR_P (op))); - - case LABEL_REF: - /* For certain code models, the code is near as well. */ - return (ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM - || ix86_cmodel == CM_KERNEL); - - case CONST: - /* We also may accept the offsetted memory references in certain - special cases. */ - if (GET_CODE (XEXP (op, 0)) == UNSPEC) - switch (XINT (XEXP (op, 0), 1)) - { - case UNSPEC_GOTPCREL: - case UNSPEC_DTPOFF: - case UNSPEC_GOTNTPOFF: - case UNSPEC_NTPOFF: - return 1; - default: - break; - } - - if (GET_CODE (XEXP (op, 0)) == PLUS) - { - rtx op1 = XEXP (XEXP (op, 0), 0); - rtx op2 = XEXP (XEXP (op, 0), 1); - HOST_WIDE_INT offset; - - if (ix86_cmodel == CM_LARGE) - return 0; - if (GET_CODE (op2) != CONST_INT) - return 0; - offset = trunc_int_for_mode (INTVAL (op2), DImode); - switch (GET_CODE (op1)) - { - case SYMBOL_REF: - /* TLS symbols are not constant. */ - if (SYMBOL_REF_TLS_MODEL (op1)) - return 0; - /* For CM_SMALL assume that latest object is 16MB before - end of 31bits boundary. We may also accept pretty - large negative constants knowing that all objects are - in the positive half of address space. */ - if ((ix86_cmodel == CM_SMALL - || (ix86_cmodel == CM_MEDIUM - && !SYMBOL_REF_FAR_ADDR_P (op1))) - && offset < 16*1024*1024 - && trunc_int_for_mode (offset, SImode) == offset) - return 1; - /* For CM_KERNEL we know that all object resist in the - negative half of 32bits address space. We may not - accept negative offsets, since they may be just off - and we may accept pretty large positive ones. */ - if (ix86_cmodel == CM_KERNEL - && offset > 0 - && trunc_int_for_mode (offset, SImode) == offset) - return 1; - break; - - case LABEL_REF: - /* These conditions are similar to SYMBOL_REF ones, just the - constraints for code models differ. */ - if ((ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM) - && offset < 16*1024*1024 - && trunc_int_for_mode (offset, SImode) == offset) - return 1; - if (ix86_cmodel == CM_KERNEL - && offset > 0 - && trunc_int_for_mode (offset, SImode) == offset) - return 1; - break; - - case UNSPEC: - switch (XINT (op1, 1)) - { - case UNSPEC_DTPOFF: - case UNSPEC_NTPOFF: - if (offset > 0 - && trunc_int_for_mode (offset, SImode) == offset) - return 1; - } - break; - - default: - break; - } - } - break; - - default: - gcc_unreachable (); - } - - return 0; -}) - -;; Return 1 if VALUE can be stored in the zero extended immediate field. -(define_predicate "x86_64_zext_immediate_operand" - (match_code "const_double,const_int,symbol_ref,label_ref,const") -{ - switch (GET_CODE (op)) - { - case CONST_DOUBLE: - if (HOST_BITS_PER_WIDE_INT == 32) - return (GET_MODE (op) == VOIDmode && !CONST_DOUBLE_HIGH (op)); - else - return 0; - - case CONST_INT: - if (HOST_BITS_PER_WIDE_INT == 32) - return INTVAL (op) >= 0; - else - return !(INTVAL (op) & ~(HOST_WIDE_INT) 0xffffffff); - - case SYMBOL_REF: - /* For certain code models, the symbolic references are known to fit. */ - /* TLS symbols are not constant. */ - if (SYMBOL_REF_TLS_MODEL (op)) - return false; - return (ix86_cmodel == CM_SMALL - || (ix86_cmodel == CM_MEDIUM - && !SYMBOL_REF_FAR_ADDR_P (op))); - - case LABEL_REF: - /* For certain code models, the code is near as well. */ - return ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM; - - case CONST: - /* We also may accept the offsetted memory references in certain - special cases. */ - if (GET_CODE (XEXP (op, 0)) == PLUS) - { - rtx op1 = XEXP (XEXP (op, 0), 0); - rtx op2 = XEXP (XEXP (op, 0), 1); - - if (ix86_cmodel == CM_LARGE) - return 0; - switch (GET_CODE (op1)) - { - case SYMBOL_REF: - /* TLS symbols are not constant. */ - if (SYMBOL_REF_TLS_MODEL (op1)) - return 0; - /* For small code model we may accept pretty large positive - offsets, since one bit is available for free. Negative - offsets are limited by the size of NULL pointer area - specified by the ABI. */ - if ((ix86_cmodel == CM_SMALL - || (ix86_cmodel == CM_MEDIUM - && !SYMBOL_REF_FAR_ADDR_P (op1))) - && GET_CODE (op2) == CONST_INT - && trunc_int_for_mode (INTVAL (op2), DImode) > -0x10000 - && trunc_int_for_mode (INTVAL (op2), SImode) == INTVAL (op2)) - return 1; - /* ??? For the kernel, we may accept adjustment of - -0x10000000, since we know that it will just convert - negative address space to positive, but perhaps this - is not worthwhile. */ - break; - - case LABEL_REF: - /* These conditions are similar to SYMBOL_REF ones, just the - constraints for code models differ. */ - if ((ix86_cmodel == CM_SMALL || ix86_cmodel == CM_MEDIUM) - && GET_CODE (op2) == CONST_INT - && trunc_int_for_mode (INTVAL (op2), DImode) > -0x10000 - && trunc_int_for_mode (INTVAL (op2), SImode) == INTVAL (op2)) - return 1; - break; - - default: - return 0; - } - } - break; - - default: - gcc_unreachable (); - } - return 0; -}) - -;; Return nonzero if OP is general operand representable on x86_64. -(define_predicate "x86_64_general_operand" - (if_then_else (match_test "TARGET_64BIT") - (ior (match_operand 0 "nonimmediate_operand") - (match_operand 0 "x86_64_immediate_operand")) - (match_operand 0 "general_operand"))) - -;; Return nonzero if OP is general operand representable on x86_64 -;; as either sign extended or zero extended constant. -(define_predicate "x86_64_szext_general_operand" - (if_then_else (match_test "TARGET_64BIT") - (ior (match_operand 0 "nonimmediate_operand") - (ior (match_operand 0 "x86_64_immediate_operand") - (match_operand 0 "x86_64_zext_immediate_operand"))) - (match_operand 0 "general_operand"))) - -;; Return nonzero if OP is nonmemory operand representable on x86_64. -(define_predicate "x86_64_nonmemory_operand" - (if_then_else (match_test "TARGET_64BIT") - (ior (match_operand 0 "register_operand") - (match_operand 0 "x86_64_immediate_operand")) - (match_operand 0 "nonmemory_operand"))) - -;; Return nonzero if OP is nonmemory operand representable on x86_64. -(define_predicate "x86_64_szext_nonmemory_operand" - (if_then_else (match_test "TARGET_64BIT") - (ior (match_operand 0 "register_operand") - (ior (match_operand 0 "x86_64_immediate_operand") - (match_operand 0 "x86_64_zext_immediate_operand"))) - (match_operand 0 "nonmemory_operand"))) - -;; Return true when operand is PIC expression that can be computed by lea -;; operation. -(define_predicate "pic_32bit_operand" - (match_code "const,symbol_ref,label_ref") -{ - if (!flag_pic) - return 0; - /* Rule out relocations that translate into 64bit constants. */ - if (TARGET_64BIT && GET_CODE (op) == CONST) - { - op = XEXP (op, 0); - if (GET_CODE (op) == PLUS && GET_CODE (XEXP (op, 1)) == CONST_INT) - op = XEXP (op, 0); - if (GET_CODE (op) == UNSPEC - && (XINT (op, 1) == UNSPEC_GOTOFF - || XINT (op, 1) == UNSPEC_GOT)) - return 0; - } - return symbolic_operand (op, mode); -}) - - -;; Return nonzero if OP is nonmemory operand acceptable by movabs patterns. -(define_predicate "x86_64_movabs_operand" - (if_then_else (match_test "!TARGET_64BIT || !flag_pic") - (match_operand 0 "nonmemory_operand") - (ior (match_operand 0 "register_operand") - (and (match_operand 0 "const_double_operand") - (match_test "GET_MODE_SIZE (mode) <= 8"))))) - -;; Returns nonzero if OP is either a symbol reference or a sum of a symbol -;; reference and a constant. -(define_predicate "symbolic_operand" - (match_code "symbol_ref,label_ref,const") -{ - switch (GET_CODE (op)) - { - case SYMBOL_REF: - case LABEL_REF: - return 1; - - case CONST: - op = XEXP (op, 0); - if (GET_CODE (op) == SYMBOL_REF - || GET_CODE (op) == LABEL_REF - || (GET_CODE (op) == UNSPEC - && (XINT (op, 1) == UNSPEC_GOT - || XINT (op, 1) == UNSPEC_GOTOFF - || XINT (op, 1) == UNSPEC_GOTPCREL))) - return 1; - if (GET_CODE (op) != PLUS - || GET_CODE (XEXP (op, 1)) != CONST_INT) - return 0; - - op = XEXP (op, 0); - if (GET_CODE (op) == SYMBOL_REF - || GET_CODE (op) == LABEL_REF) - return 1; - /* Only @GOTOFF gets offsets. */ - if (GET_CODE (op) != UNSPEC - || XINT (op, 1) != UNSPEC_GOTOFF) - return 0; - - op = XVECEXP (op, 0, 0); - if (GET_CODE (op) == SYMBOL_REF - || GET_CODE (op) == LABEL_REF) - return 1; - return 0; - - default: - gcc_unreachable (); - } -}) - -;; Return true if the operand contains a @GOT or @GOTOFF reference. -(define_predicate "pic_symbolic_operand" - (match_code "const") -{ - op = XEXP (op, 0); - if (TARGET_64BIT) - { - if (GET_CODE (op) == UNSPEC - && XINT (op, 1) == UNSPEC_GOTPCREL) - return 1; - if (GET_CODE (op) == PLUS - && GET_CODE (XEXP (op, 0)) == UNSPEC - && XINT (XEXP (op, 0), 1) == UNSPEC_GOTPCREL) - return 1; - } - else - { - if (GET_CODE (op) == UNSPEC) - return 1; - if (GET_CODE (op) != PLUS - || GET_CODE (XEXP (op, 1)) != CONST_INT) - return 0; - op = XEXP (op, 0); - if (GET_CODE (op) == UNSPEC) - return 1; - } - return 0; -}) - -;; Return true if OP is a symbolic operand that resolves locally. -(define_predicate "local_symbolic_operand" - (match_code "const,label_ref,symbol_ref") -{ - if (GET_CODE (op) == CONST - && GET_CODE (XEXP (op, 0)) == PLUS - && GET_CODE (XEXP (XEXP (op, 0), 1)) == CONST_INT) - op = XEXP (XEXP (op, 0), 0); - - if (GET_CODE (op) == LABEL_REF) - return 1; - - if (GET_CODE (op) != SYMBOL_REF) - return 0; - - if (SYMBOL_REF_TLS_MODEL (op) != 0) - return 0; - -/* APPLE LOCAL begin fix-and-continue 6358507 */ - if (SYMBOL_REF_LOCAL_P (op)) - { -#if TARGET_MACHO - if (!indirect_data (op) - || machopic_data_defined_p (op)) -#endif - return 1; - } -/* APPLE LOCAL end fix-and-continue 6358507 */ - - /* There is, however, a not insubstantial body of code in the rest of - the compiler that assumes it can just stick the results of - ASM_GENERATE_INTERNAL_LABEL in a symbol_ref and have done. */ - /* ??? This is a hack. Should update the body of the compiler to - always create a DECL an invoke targetm.encode_section_info. */ - if (strncmp (XSTR (op, 0), internal_label_prefix, - internal_label_prefix_len) == 0) - return 1; - - return 0; -}) - -;; Test for various thread-local symbols. -(define_predicate "tls_symbolic_operand" - (and (match_code "symbol_ref") - (match_test "SYMBOL_REF_TLS_MODEL (op) != 0"))) - -(define_predicate "tls_modbase_operand" - (and (match_code "symbol_ref") - (match_test "op == ix86_tls_module_base ()"))) - -(define_predicate "tp_or_register_operand" - (ior (match_operand 0 "register_operand") - (and (match_code "unspec") - (match_test "XINT (op, 1) == UNSPEC_TP")))) - -;; Test for a pc-relative call operand -(define_predicate "constant_call_address_operand" - (ior (match_code "symbol_ref") - (match_operand 0 "local_symbolic_operand"))) - -;; True for any non-virtual or eliminable register. Used in places where -;; instantiation of such a register may cause the pattern to not be recognized. -(define_predicate "register_no_elim_operand" - (match_operand 0 "register_operand") -{ - if (GET_CODE (op) == SUBREG) - op = SUBREG_REG (op); - return !(op == arg_pointer_rtx - || op == frame_pointer_rtx - || (REGNO (op) >= FIRST_PSEUDO_REGISTER - && REGNO (op) <= LAST_VIRTUAL_REGISTER)); -}) - -;; Similarly, but include the stack pointer. This is used to prevent esp -;; from being used as an index reg. -(define_predicate "index_register_operand" - (match_operand 0 "register_operand") -{ - if (GET_CODE (op) == SUBREG) - op = SUBREG_REG (op); - if (reload_in_progress || reload_completed) - return REG_OK_FOR_INDEX_STRICT_P (op); - else - return REG_OK_FOR_INDEX_NONSTRICT_P (op); -}) - -;; Return false if this is any eliminable register. Otherwise general_operand. -(define_predicate "general_no_elim_operand" - (if_then_else (match_code "reg,subreg") - (match_operand 0 "register_no_elim_operand") - (match_operand 0 "general_operand"))) - -;; Return false if this is any eliminable register. Otherwise -;; register_operand or a constant. -(define_predicate "nonmemory_no_elim_operand" - (ior (match_operand 0 "register_no_elim_operand") - (match_operand 0 "immediate_operand"))) - -;; Test for a valid operand for a call instruction. -(define_predicate "call_insn_operand" - (ior (match_operand 0 "constant_call_address_operand") - (ior (match_operand 0 "register_no_elim_operand") - (match_operand 0 "memory_operand")))) - -;; Similarly, but for tail calls, in which we cannot allow memory references. -(define_predicate "sibcall_insn_operand" - (ior (match_operand 0 "constant_call_address_operand") - (match_operand 0 "register_no_elim_operand"))) - -;; Match exactly zero. -(define_predicate "const0_operand" - (match_code "const_int,const_double,const_vector") -{ - if (mode == VOIDmode) - mode = GET_MODE (op); - return op == CONST0_RTX (mode); -}) - -;; Match exactly one. -(define_predicate "const1_operand" - (and (match_code "const_int") - (match_test "op == const1_rtx"))) - -;; Match exactly eight. -(define_predicate "const8_operand" - (and (match_code "const_int") - (match_test "INTVAL (op) == 8"))) - -;; Match 2, 4, or 8. Used for leal multiplicands. -(define_predicate "const248_operand" - (match_code "const_int") -{ - HOST_WIDE_INT i = INTVAL (op); - return i == 2 || i == 4 || i == 8; -}) - -;; Match 0 or 1. -(define_predicate "const_0_to_1_operand" - (and (match_code "const_int") - (match_test "op == const0_rtx || op == const1_rtx"))) - -;; Match 0 to 3. -(define_predicate "const_0_to_3_operand" - (and (match_code "const_int") - (match_test "INTVAL (op) >= 0 && INTVAL (op) <= 3"))) - -;; Match 0 to 7. -(define_predicate "const_0_to_7_operand" - (and (match_code "const_int") - (match_test "INTVAL (op) >= 0 && INTVAL (op) <= 7"))) - -;; Match 0 to 15. -(define_predicate "const_0_to_15_operand" - (and (match_code "const_int") - (match_test "INTVAL (op) >= 0 && INTVAL (op) <= 15"))) - -;; Match 0 to 63. -(define_predicate "const_0_to_63_operand" - (and (match_code "const_int") - (match_test "INTVAL (op) >= 0 && INTVAL (op) <= 63"))) - -;; Match 0 to 255. -(define_predicate "const_0_to_255_operand" - (and (match_code "const_int") - (match_test "INTVAL (op) >= 0 && INTVAL (op) <= 255"))) - -;; Match (0 to 255) * 8 -(define_predicate "const_0_to_255_mul_8_operand" - (match_code "const_int") -{ - unsigned HOST_WIDE_INT val = INTVAL (op); - return val <= 255*8 && val % 8 == 0; -}) - -;; Return nonzero if OP is CONST_INT >= 1 and <= 31 (a valid operand -;; for shift & compare patterns, as shifting by 0 does not change flags). -(define_predicate "const_1_to_31_operand" - (and (match_code "const_int") - (match_test "INTVAL (op) >= 1 && INTVAL (op) <= 31"))) - -;; Match 2 or 3. -(define_predicate "const_2_to_3_operand" - (and (match_code "const_int") - (match_test "INTVAL (op) == 2 || INTVAL (op) == 3"))) - -;; Match 4 to 7. -(define_predicate "const_4_to_7_operand" - (and (match_code "const_int") - (match_test "INTVAL (op) >= 4 && INTVAL (op) <= 7"))) - -;; APPLE LOCAL begin 5612787 mainline sse4 -;; Match exactly one bit in 2-bit mask. -(define_predicate "const_pow2_1_to_2_operand" - (and (match_code "const_int") - (match_test "INTVAL (op) == 1 || INTVAL (op) == 2"))) -;; APPLE LOCAL end 5612787 mainline sse4 - -;; Match exactly one bit in 4-bit mask. -(define_predicate "const_pow2_1_to_8_operand" - (match_code "const_int") -{ - unsigned int log = exact_log2 (INTVAL (op)); - return log <= 3; -}) - -;; Match exactly one bit in 8-bit mask. -(define_predicate "const_pow2_1_to_128_operand" - (match_code "const_int") -{ - unsigned int log = exact_log2 (INTVAL (op)); - return log <= 7; -}) - -;; APPLE LOCAL begin 5612787 mainline sse4 -;; Match exactly one bit in 16-bit mask. -(define_predicate "const_pow2_1_to_32768_operand" - (match_code "const_int") -{ - unsigned int log = exact_log2 (INTVAL (op)); - return log <= 15; -}) -;; APPLE LOCAL end 5612787 mainline sse4 - -;; True if this is a constant appropriate for an increment or decrement. -(define_predicate "incdec_operand" - (match_code "const_int") -{ - /* On Pentium4, the inc and dec operations causes extra dependency on flag - registers, since carry flag is not set. */ - if (!TARGET_USE_INCDEC && !optimize_size) - return 0; - return op == const1_rtx || op == constm1_rtx; -}) - -;; True for registers, or 1 or -1. Used to optimize double-word shifts. -(define_predicate "reg_or_pm1_operand" - (ior (match_operand 0 "register_operand") - (and (match_code "const_int") - (match_test "op == const1_rtx || op == constm1_rtx")))) - -;; True if OP is acceptable as operand of DImode shift expander. -(define_predicate "shiftdi_operand" - (if_then_else (match_test "TARGET_64BIT") - (match_operand 0 "nonimmediate_operand") - (match_operand 0 "register_operand"))) - -(define_predicate "ashldi_input_operand" - (if_then_else (match_test "TARGET_64BIT") - (match_operand 0 "nonimmediate_operand") - (match_operand 0 "reg_or_pm1_operand"))) - -;; Return true if OP is a vector load from the constant pool with just -;; the first element nonzero. -(define_predicate "zero_extended_scalar_load_operand" - (match_code "mem") -{ - unsigned n_elts; - op = maybe_get_pool_constant (op); - if (!op) - return 0; - if (GET_CODE (op) != CONST_VECTOR) - return 0; - n_elts = - (GET_MODE_SIZE (GET_MODE (op)) / - GET_MODE_SIZE (GET_MODE_INNER (GET_MODE (op)))); - for (n_elts--; n_elts > 0; n_elts--) - { - rtx elt = CONST_VECTOR_ELT (op, n_elts); - if (elt != CONST0_RTX (GET_MODE_INNER (GET_MODE (op)))) - return 0; - } - return 1; -}) - -/* Return true if operand is a vector constant that is all ones. */ -(define_predicate "vector_all_ones_operand" - (match_code "const_vector") -{ - int nunits = GET_MODE_NUNITS (mode); - - if (GET_CODE (op) == CONST_VECTOR - && CONST_VECTOR_NUNITS (op) == nunits) - { - int i; - for (i = 0; i < nunits; ++i) - { - rtx x = CONST_VECTOR_ELT (op, i); - if (x != constm1_rtx) - return 0; - } - return 1; - } - - return 0; -}) - -; Return 1 when OP is operand acceptable for standard SSE move. -(define_predicate "vector_move_operand" - (ior (match_operand 0 "nonimmediate_operand") - (match_operand 0 "const0_operand"))) - -;; Return 1 when OP is nonimmediate or standard SSE constant. -(define_predicate "nonimmediate_or_sse_const_operand" - (match_operand 0 "general_operand") -{ - if (nonimmediate_operand (op, mode)) - return 1; - if (standard_sse_constant_p (op) > 0) - return 1; - return 0; -}) - -;; APPLE LOCAL begin mainline -/* MERGE FIXME was this replaced by reg_or_0_operand below */ -;; Return true if OP is a nonimmediate or a zero. -(define_predicate "nonimmediate_or_0_operand" - (ior (match_operand 0 "nonimmediate_operand") - (match_operand 0 "const0_operand"))) -;; APPLE LOCAL end mainline - -;; Return true if OP is a register or a zero. -(define_predicate "reg_or_0_operand" - (ior (match_operand 0 "register_operand") - (match_operand 0 "const0_operand"))) - -;; Return true if op if a valid address, and does not contain -;; a segment override. -(define_special_predicate "no_seg_address_operand" - (match_operand 0 "address_operand") -{ - struct ix86_address parts; - int ok; - - ok = ix86_decompose_address (op, &parts); - gcc_assert (ok); - return parts.seg == SEG_DEFAULT; -}) - -;; Return nonzero if the rtx is known to be at least 32 bits aligned. -(define_predicate "aligned_operand" - (match_operand 0 "general_operand") -{ - struct ix86_address parts; - int ok; - - /* Registers and immediate operands are always "aligned". */ - if (GET_CODE (op) != MEM) - return 1; - - /* All patterns using aligned_operand on memory operands ends up - in promoting memory operand to 64bit and thus causing memory mismatch. */ - if (TARGET_MEMORY_MISMATCH_STALL && !optimize_size) - return 0; - - /* Don't even try to do any aligned optimizations with volatiles. */ - if (MEM_VOLATILE_P (op)) - return 0; - - if (MEM_ALIGN (op) >= 32) - return 1; - - op = XEXP (op, 0); - - /* Pushes and pops are only valid on the stack pointer. */ - if (GET_CODE (op) == PRE_DEC - || GET_CODE (op) == POST_INC) - return 1; - - /* Decode the address. */ - ok = ix86_decompose_address (op, &parts); - gcc_assert (ok); - - /* Look for some component that isn't known to be aligned. */ - if (parts.index) - { - if (REGNO_POINTER_ALIGN (REGNO (parts.index)) * parts.scale < 32) - return 0; - } - if (parts.base) - { - if (REGNO_POINTER_ALIGN (REGNO (parts.base)) < 32) - return 0; - } - if (parts.disp) - { - if (GET_CODE (parts.disp) != CONST_INT - || (INTVAL (parts.disp) & 3) != 0) - return 0; - } - - /* Didn't find one -- this must be an aligned address. */ - return 1; -}) - -;; Returns 1 if OP is memory operand with a displacement. -(define_predicate "memory_displacement_operand" - (match_operand 0 "memory_operand") -{ - struct ix86_address parts; - int ok; - - ok = ix86_decompose_address (XEXP (op, 0), &parts); - gcc_assert (ok); - return parts.disp != NULL_RTX; -}) - -;; Returns 1 if OP is memory operand with a displacement only. -(define_predicate "memory_displacement_only_operand" - (match_operand 0 "memory_operand") -{ - struct ix86_address parts; - int ok; - - ok = ix86_decompose_address (XEXP (op, 0), &parts); - gcc_assert (ok); - - if (parts.base || parts.index) - return 0; - - return parts.disp != NULL_RTX; -}) - -;; Returns 1 if OP is memory operand that cannot be represented -;; by the modRM array. -(define_predicate "long_memory_operand" - (and (match_operand 0 "memory_operand") - (match_test "memory_address_length (op) != 0"))) - -;; Return 1 if OP is a comparison operator that can be issued by fcmov. -(define_predicate "fcmov_comparison_operator" - (match_operand 0 "comparison_operator") -{ - enum machine_mode inmode = GET_MODE (XEXP (op, 0)); - enum rtx_code code = GET_CODE (op); - - if (inmode == CCFPmode || inmode == CCFPUmode) - { - enum rtx_code second_code, bypass_code; - ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code); - if (bypass_code != UNKNOWN || second_code != UNKNOWN) - return 0; - code = ix86_fp_compare_code_to_integer (code); - } - /* i387 supports just limited amount of conditional codes. */ - switch (code) - { - case LTU: case GTU: case LEU: case GEU: - if (inmode == CCmode || inmode == CCFPmode || inmode == CCFPUmode) - return 1; - return 0; - case ORDERED: case UNORDERED: - case EQ: case NE: - return 1; - default: - return 0; - } -}) - -;; Return 1 if OP is a comparison that can be used in the CMPSS/CMPPS insns. -;; The first set are supported directly; the second set can't be done with -;; full IEEE support, i.e. NaNs. -;; -;; ??? It would seem that we have a lot of uses of this predicate that pass -;; it the wrong mode. We got away with this because the old function didn't -;; check the mode at all. Mirror that for now by calling this a special -;; predicate. - -(define_special_predicate "sse_comparison_operator" - (match_code "eq,lt,le,unordered,ne,unge,ungt,ordered")) - -;; Return 1 if OP is a valid comparison operator in valid mode. -(define_predicate "ix86_comparison_operator" - (match_operand 0 "comparison_operator") -{ - enum machine_mode inmode = GET_MODE (XEXP (op, 0)); - enum rtx_code code = GET_CODE (op); - - if (inmode == CCFPmode || inmode == CCFPUmode) - { - enum rtx_code second_code, bypass_code; - ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code); - return (bypass_code == UNKNOWN && second_code == UNKNOWN); - } - switch (code) - { - case EQ: case NE: - return 1; - case LT: case GE: - if (inmode == CCmode || inmode == CCGCmode - || inmode == CCGOCmode || inmode == CCNOmode) - return 1; - return 0; - case LTU: case GTU: case LEU: case ORDERED: case UNORDERED: case GEU: - if (inmode == CCmode) - return 1; - return 0; - case GT: case LE: - if (inmode == CCmode || inmode == CCGCmode || inmode == CCNOmode) - return 1; - return 0; - default: - return 0; - } -}) - -;; Return 1 if OP is a valid comparison operator testing carry flag to be set. -(define_predicate "ix86_carry_flag_operator" - (match_code "ltu,lt,unlt,gt,ungt,le,unle,ge,unge,ltgt,uneq") -{ - enum machine_mode inmode = GET_MODE (XEXP (op, 0)); - enum rtx_code code = GET_CODE (op); - - if (GET_CODE (XEXP (op, 0)) != REG - || REGNO (XEXP (op, 0)) != FLAGS_REG - || XEXP (op, 1) != const0_rtx) - return 0; - - if (inmode == CCFPmode || inmode == CCFPUmode) - { - enum rtx_code second_code, bypass_code; - ix86_fp_comparison_codes (code, &bypass_code, &code, &second_code); - if (bypass_code != UNKNOWN || second_code != UNKNOWN) - return 0; - code = ix86_fp_compare_code_to_integer (code); - } - else if (inmode != CCmode) - return 0; - - return code == LTU; -}) - -;; Nearly general operand, but accept any const_double, since we wish -;; to be able to drop them into memory rather than have them get pulled -;; into registers. -(define_predicate "cmp_fp_expander_operand" - (ior (match_code "const_double") - (match_operand 0 "general_operand"))) - -;; Return true if this is a valid binary floating-point operation. -(define_predicate "binary_fp_operator" - (match_code "plus,minus,mult,div")) - -;; Return true if this is a multiply operation. -(define_predicate "mult_operator" - (match_code "mult")) - -;; Return true if this is a division operation. -(define_predicate "div_operator" - (match_code "div")) - -;; Return true if this is a float extend operation. -(define_predicate "float_operator" - (match_code "float")) - -;; Return true for ARITHMETIC_P. -(define_predicate "arith_or_logical_operator" - (match_code "plus,mult,and,ior,xor,smin,smax,umin,umax,compare,minus,div, - mod,udiv,umod,ashift,rotate,ashiftrt,lshiftrt,rotatert")) - -;; Return 1 if OP is a binary operator that can be promoted to wider mode. -;; Modern CPUs have same latency for HImode and SImode multiply, -;; but 386 and 486 do HImode multiply faster. */ -(define_predicate "promotable_binary_operator" - (ior (match_code "plus,and,ior,xor,ashift") - (and (match_code "mult") - (match_test "ix86_tune > PROCESSOR_I486")))) - -;; To avoid problems when jump re-emits comparisons like testqi_ext_ccno_0, -;; re-recognize the operand to avoid a copy_to_mode_reg that will fail. -;; -;; ??? It seems likely that this will only work because cmpsi is an -;; expander, and no actual insns use this. - -(define_predicate "cmpsi_operand" - (ior (match_operand 0 "nonimmediate_operand") - (and (match_code "and") - (match_code "zero_extract" "0") - (match_code "const_int" "1") - (match_code "const_int" "01") - (match_code "const_int" "02") - (match_test "INTVAL (XEXP (XEXP (op, 0), 1)) == 8") - (match_test "INTVAL (XEXP (XEXP (op, 0), 2)) == 8") - ))) - -(define_predicate "compare_operator" - (match_code "compare")) - -(define_predicate "absneg_operator" - (match_code "abs,neg")) |