From 966e4333fe31ffa43cf1e59be7d40d5c2f963f54 Mon Sep 17 00:00:00 2001 From: mycroft Date: Sat, 14 Mar 1992 05:04:03 +0000 Subject: [PATCH] entered into RCS git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@469 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/conditions.h | 111 +++++++++++++++++++++++++++++++++++++++++++++++++++++++ gcc/gsyms.h | 76 +++++++++++++++++++++++++++++++++++++ 2 files changed, 187 insertions(+) create mode 100644 gcc/conditions.h create mode 100644 gcc/gsyms.h diff --git a/gcc/conditions.h b/gcc/conditions.h new file mode 100644 index 0000000..140fbd9 --- /dev/null +++ b/gcc/conditions.h @@ -0,0 +1,111 @@ +/* Definitions for condition code handling in final.c and output routines. + Copyright (C) 1987 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC 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. + +GNU CC 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 GNU CC; see the file COPYING. If not, write to +the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ + +/* None of the things in the files exist if we don't use CC0. */ + +#ifdef HAVE_cc0 + +/* The variable cc_status says how to interpret the condition code. + It is set by output routines for an instruction that sets the cc's + and examined by output routines for jump instructions. + + cc_status contains two components named `value1' and `value2' + that record two equivalent expressions for the values that the + condition codes were set from. (Either or both may be null if + there is no useful expression to record.) These fields are + used for eliminating redundant test and compare instructions + in the cases where the condition codes were already set by the + previous instruction. + + cc_status.flags contains flags which say that the condition codes + were set in a nonstandard manner. The output of jump instructions + uses these flags to compensate and produce the standard result + with the nonstandard condition codes. Standard flags are defined here. + The tm.h file can also define other machine-dependent flags. + + cc_status also contains a machine-dependent component `mdep' + whose type, `CC_STATUS_MDEP', may be defined as a macro in the + tm.h file. */ + +#ifndef CC_STATUS_MDEP +#define CC_STATUS_MDEP int +#endif + +#ifndef CC_STATUS_MDEP_INIT +#define CC_STATUS_MDEP_INIT 0 +#endif + +typedef struct {int flags; rtx value1, value2; CC_STATUS_MDEP mdep;} CC_STATUS; + +/* While outputting an insn as assembler code, + this is the status BEFORE that insn. */ +extern CC_STATUS cc_prev_status; + +/* While outputting an insn as assembler code, + this is being altered to the status AFTER that insn. */ +extern CC_STATUS cc_status; + +/* These are the machine-independent flags: */ + +/* Set if the sign of the cc value is inverted: + output a following jump-if-less as a jump-if-greater, etc. */ +#define CC_REVERSED 1 + +/* This bit means that the current setting of the N bit is bogus + and conditional jumps should use the Z bit in its place. + This state obtains when an extraction of a signed single-bit field + or an arithmetic shift right of a byte by 7 bits + is turned into a btst, because btst does not set the N bit. */ +#define CC_NOT_POSITIVE 2 + +/* This bit means that the current setting of the N bit is bogus + and conditional jumps should pretend that the N bit is clear. + Used after extraction of an unsigned bit + or logical shift right of a byte by 7 bits is turned into a btst. + The btst does not alter the N bit, but the result of that shift + or extract is never negative. */ +#define CC_NOT_NEGATIVE 4 + +/* This bit means that the current setting of the overflow flag + is bogus and conditional jumps should pretend there is no overflow. */ +#define CC_NO_OVERFLOW 010 + +/* This bit means that what ought to be in the Z bit + should be tested as the complement of the N bit. */ +#define CC_Z_IN_NOT_N 020 + +/* This bit means that what ought to be in the Z bit + should be tested as the N bit. */ +#define CC_Z_IN_N 040 + +/* Nonzero if we must invert the sense of the following branch, i.e. + change EQ to NE. This is not safe for IEEE floating point operations! + It is intended for use only when a combination of arithmetic + or logical insns can leave the condition codes set in a fortuitous + (though inverted) state. */ +#define CC_INVERTED 0100 + +/* This is how to initialize the variable cc_status. + final does this at appropriate moments. */ + +#define CC_STATUS_INIT \ + (cc_status.flags = 0, cc_status.value1 = 0, cc_status.value2 = 0, \ + CC_STATUS_MDEP_INIT) + +#endif diff --git a/gcc/gsyms.h b/gcc/gsyms.h new file mode 100644 index 0000000..a2054bb --- /dev/null +++ b/gcc/gsyms.h @@ -0,0 +1,76 @@ +/* For cross compilation, use the portable definitions from the COFF + documentation. */ + +#define __GNU_SYMS__ + +enum sdb_storage_class +{ + C_EFCN = -1, + C_NULL = 0, + C_AUTO = 1, + C_EXT = 2, + C_STAT = 3, + C_REG = 4, + C_EXTDEF = 5, + C_LABEL = 6, + C_ULABEL = 7, + C_MOS = 8, + C_ARG = 9, + C_STRTAG = 10, + C_MOU = 11, + C_UNTAG = 12, + C_TPDEF = 13, + C_USTATIC = 14, + C_ENTAG = 15, + C_MOE = 16, + C_REGPARM = 17, + C_FIELD = 18, + + C_BLOCK = 100, + C_FCN = 101, + C_EOS = 102, + C_FILE = 103, + C_LINE = 104, + C_ALIAS = 105, + C_HIDDEN = 106 +}; + +enum sdb_type +{ + T_NULL = 0, + T_ARG = 1, + T_VOID = 1, + T_CHAR = 2, + T_SHORT = 3, + T_INT = 4, + T_LONG = 5, + T_FLOAT = 6, + T_DOUBLE = 7, + T_STRUCT = 8, + T_UNION = 9, + T_ENUM = 10, + T_MOE = 11, + T_UCHAR = 12, + T_USHORT = 13, + T_UINT = 14, + T_ULONG = 15 +}; + +enum sdb_type_class +{ + DT_NON = 0, + DT_PTR = 1, + DT_FCN = 2, + DT_ARY = 3 +}; + +enum sdb_masks +{ + N_BTMASK = 017, + N_TMASK = 060, + N_TMASK1 = 0300, + N_TMASK2 = 0360, + N_BTSHFT = 4, + N_TSHIFT = 2 +}; + -- 2.7.4