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authorYamaArashi <shadow962@live.com>2016-01-06 01:47:28 -0800
committerYamaArashi <shadow962@live.com>2016-01-06 01:47:28 -0800
commitbe8b04496302184c6e8f04d6179f9c3afc50aeb6 (patch)
tree726e2468c0c07add773c0dbd86ab6386844259ae /gcc/config/i386/unix.h
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diff --git a/gcc/config/i386/unix.h b/gcc/config/i386/unix.h
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+/* Definitions for Unix assembler syntax for the Intel 80386.
+ Copyright (C) 1988, 1994, 1999 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, 59 Temple Place - Suite 330,
+Boston, MA 02111-1307, USA. */
+
+/* This file defines the aspects of assembler syntax
+ that are the same for all the i386 Unix systems
+ (though they may differ in non-Unix systems). */
+
+/* Define some concatenation macros to concatenate an opcode
+ and one, two or three operands. In other assembler syntaxes
+ they may alter the order of ther operands. */
+
+/* Note that the other files fail to use these
+ in some of the places where they should. */
+
+#if defined(__STDC__) || defined(ALMOST_STDC)
+#define AS2(a,b,c) #a " " #b "," #c
+#define AS2C(b,c) " " #b "," #c
+#define AS3(a,b,c,d) #a " " #b "," #c "," #d
+#define AS1(a,b) #a " " #b
+#else
+#define AS1(a,b) "a b"
+#define AS2(a,b,c) "a b,c"
+#define AS2C(b,c) " b,c"
+#define AS3(a,b,c,d) "a b,c,d"
+#endif
+
+/* Define macro used to output shift-double opcodes when the shift
+ count is in %cl. Some assemblers require %cl as an argument;
+ some don't. This macro controls what to do: by default, don't
+ print %cl. */
+#define SHIFT_DOUBLE_OMITS_COUNT 1
+#define AS3_SHIFT_DOUBLE(a,b,c,d) \
+ (SHIFT_DOUBLE_OMITS_COUNT ? AS2 (a,c,d) : AS3 (a,b,c,d))
+
+/* Output the size-letter for an opcode.
+ CODE is the letter used in an operand spec (L, B, W, S or Q).
+ CH is the corresponding lower case letter
+ (except if CODE is `Q' then CH is `l', unless GAS_MNEMONICS). */
+#define PUT_OP_SIZE(CODE,CH,FILE) putc (CH,(FILE))
+
+/* Opcode suffix for fullword insn. */
+#define L_SIZE "l"
+
+/* Prefix for register names in this syntax. */
+#define RP "%"
+
+/* Prefix for immediate operands in this syntax. */
+#define IP "$"
+
+/* Indirect call instructions should use `*'. */
+#define USE_STAR 1
+
+/* Prefix for a memory-operand X. */
+#define PRINT_PTR(X, FILE)
+
+/* Delimiters that surround base reg and index reg. */
+#define ADDR_BEG(FILE) putc('(', (FILE))
+#define ADDR_END(FILE) putc(')', (FILE))
+
+/* Print an index register (whose rtx is IREG). */
+#define PRINT_IREG(FILE,IREG) \
+ do \
+ { fputs (",", (FILE)); PRINT_REG ((IREG), 0, (FILE)); } \
+ while (0)
+
+/* Print an index scale factor SCALE. */
+#define PRINT_SCALE(FILE,SCALE) \
+ if ((SCALE) != 1) fprintf ((FILE), ",%d", (SCALE))
+
+/* Print a base/index combination.
+ BREG is the base reg rtx, IREG is the index reg rtx,
+ and SCALE is the index scale factor (an integer). */
+
+#define PRINT_B_I_S(BREG,IREG,SCALE,FILE) \
+ { ADDR_BEG (FILE); \
+ if (BREG) PRINT_REG ((BREG), 0, (FILE)); \
+ if ((IREG) != 0) \
+ { PRINT_IREG ((FILE), (IREG)); \
+ PRINT_SCALE ((FILE), (SCALE)); } \
+ ADDR_END (FILE); }
+
+/* Define the syntax of pseudo-ops, labels and comments. */
+
+/* String containing the assembler's comment-starter. */
+
+#define ASM_COMMENT_START "/"
+
+/* Output to assembler file text saying following lines
+ may contain character constants, extra white space, comments, etc. */
+
+#define ASM_APP_ON "/APP\n"
+
+/* Output to assembler file text saying following lines
+ no longer contain unusual constructs. */
+
+#define ASM_APP_OFF "/NO_APP\n"
+
+/* Output before read-only data. */
+
+#define TEXT_SECTION_ASM_OP ".text"
+
+/* Output before writable (initialized) data. */
+
+#define DATA_SECTION_ASM_OP ".data"
+
+/* Output before writable (uninitialized) data. */
+
+#define BSS_SECTION_ASM_OP ".bss"
+
+/* This is how to output a command to make the user-level label named NAME
+ defined for reference from other files. */
+
+#define ASM_GLOBALIZE_LABEL(FILE,NAME) \
+ (fputs (".globl ", FILE), assemble_name (FILE, NAME), fputs ("\n", FILE))
+
+/* By default, target has a 80387, uses IEEE compatible arithmetic,
+ and returns float values in the 387. */
+
+#define TARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP | MASK_FLOAT_RETURNS)
+
+/* Floating-point return values come in the FP register. */
+
+#define VALUE_REGNO(MODE) \
+ (GET_MODE_CLASS (MODE) == MODE_FLOAT \
+ && TARGET_FLOAT_RETURNS_IN_80387 ? FIRST_FLOAT_REG : 0)
+
+/* 1 if N is a possible register number for a function value. */
+
+#define FUNCTION_VALUE_REGNO_P(N) \
+ ((N) == 0 || ((N)== FIRST_FLOAT_REG && TARGET_FLOAT_RETURNS_IN_80387))
+
+/* Output code to add DELTA to the first argument, and then jump to FUNCTION.
+ Used for C++ multiple inheritance. */
+#define ASM_OUTPUT_MI_THUNK(FILE, THUNK_FNDECL, DELTA, FUNCTION) \
+do { \
+ tree parm; \
+ \
+ if (i386_regparm > 0) \
+ parm = TYPE_ARG_TYPES (TREE_TYPE (function)); \
+ else \
+ parm = NULL_TREE; \
+ for (; parm; parm = TREE_CHAIN (parm)) \
+ if (TREE_VALUE (parm) == void_type_node) \
+ break; \
+ fprintf (FILE, "\taddl $%d,%s\n", DELTA, \
+ parm ? "%eax" \
+ : aggregate_value_p (TREE_TYPE (TREE_TYPE (FUNCTION))) ? "8(%esp)" \
+ : "4(%esp)"); \
+ \
+ if (flag_pic) \
+ { \
+ rtx xops[2]; \
+ xops[0] = pic_offset_table_rtx; \
+ xops[1] = (rtx) gen_label_rtx (); \
+ \
+ if (i386_regparm > 2) \
+ abort (); \
+ output_asm_insn ("push%L0 %0", xops); \
+ output_asm_insn (AS1 (call,%P1), xops); \
+ ASM_OUTPUT_INTERNAL_LABEL (FILE, "L", CODE_LABEL_NUMBER (xops[1])); \
+ output_asm_insn (AS1 (pop%L0,%0), xops); \
+ output_asm_insn ("addl $_GLOBAL_OFFSET_TABLE_+[.-%P1],%0", xops); \
+ fprintf (FILE, "\tmovl "); \
+ assemble_name (FILE, XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0)); \
+ fprintf (FILE, "@GOT(%%ebx),%%ecx\n\tpopl %%ebx\n\tjmp *%%ecx\n"); \
+ } \
+ else \
+ { \
+ fprintf (FILE, "\tjmp "); \
+ assemble_name (FILE, XSTR (XEXP (DECL_RTL (FUNCTION), 0), 0)); \
+ fprintf (FILE, "\n"); \
+ } \
+} while (0)