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dsp16xx.md: Rewrite for more efficient code and add scheduling support. 

* config/dsp16xx/dsp16xx.md: Rewrite for more efficient code and
	add scheduling support.
	* config/dsp16xx/dsp16xx.h: Rewrite for more efficient code.
	* config/dsp16xx/dsp16xx.c: Rewrite for more efficient code.
	* config/dsp16xx/dsp16xx-protos.h: Add new function prototypes.

From-SVN: r46248
This commit is contained in:
Michael Collison 2001-10-14 02:14:28 +00:00
parent 48d24deb4e
commit dff06f62c9
4 changed files with 1964 additions and 705 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
gcc/config/dsp16xx/dsp16xx-protos.h
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@ -29,6 +29,8 @@ extern int sp_operand PARAMS ((rtx, enum machine_mode));
extern int sp_operand2 PARAMS ((rtx, enum machine_mode)); extern int sp_operand2 PARAMS ((rtx, enum machine_mode));
extern int nonmemory_arith_operand PARAMS ((rtx, enum machine_mode)); extern int nonmemory_arith_operand PARAMS ((rtx, enum machine_mode));
extern int dsp16xx_comparison_operator PARAMS ((rtx, enum machine_mode)); extern int dsp16xx_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int unx_comparison_operator PARAMS ((rtx, enum machine_mode));
extern int signed_comparison_operator PARAMS ((rtx, enum machine_mode));
extern void notice_update_cc PARAMS ((rtx)); extern void notice_update_cc PARAMS ((rtx));
extern void double_reg_from_memory PARAMS ((rtx[])); extern void double_reg_from_memory PARAMS ((rtx[]));
@ -77,7 +79,11 @@ extern void asm_output_local PARAMS ((FILE *, const char *, int, int));
extern void asm_output_float PARAMS ((FILE *, double)); extern void asm_output_float PARAMS ((FILE *, double));
extern void asm_output_long PARAMS ((FILE *, long)); extern void asm_output_long PARAMS ((FILE *, long));
extern void dsp16xx_file_start PARAMS ((void)); extern void dsp16xx_file_start PARAMS ((void));
extern void coff_dsp16xx_file_start PARAMS ((FILE *));
extern void luxworks_dsp16xx_file_start PARAMS ((FILE *));
extern struct rtx_def *(*dsp16xx_compare_gen) PARAMS (()); extern struct rtx_def *(*dsp16xx_compare_gen) PARAMS (());
extern int hard_regno_mode_ok PARAMS ((int, enum machine_mode)); extern int hard_regno_mode_ok PARAMS ((int, enum machine_mode));
extern enum reg_class dsp16xx_reg_class_from_letter PARAMS ((int)); extern enum reg_class dsp16xx_reg_class_from_letter PARAMS ((int));
extern int regno_reg_class PARAMS ((int)); extern int regno_reg_class PARAMS ((int));
extern void function_prologue PARAMS ((FILE *, int));
extern void function_epilogue PARAMS ((FILE *, int));

1079
gcc/config/dsp16xx/dsp16xx.c
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File diff suppressed because it is too large Load Diff

330
gcc/config/dsp16xx/dsp16xx.h
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@ -1,7 +1,7 @@
/* Definitions of target machine for GNU compiler. AT&T DSP1600. /* Definitions of target machine for GNU compiler. AT&T DSP1600.
Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001 Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000, 2001
Free Software Foundation, Inc. Free Software Foundation, Inc.
Contributed by Michael Collison (collison@world.std.com). Contributed by Michael Collison (collison@isisinc.net).
This file is part of GNU CC. This file is part of GNU CC.
@ -74,7 +74,9 @@ extern struct rtx_def *dsp16xx_lshrhi3_libcall;
#ifdef CC1_SPEC #ifdef CC1_SPEC
#undef CC1_SPEC #undef CC1_SPEC
#endif #endif
#define CC1_SPEC "" #define CC1_SPEC "%{!O*:-O}"
#define CPP_SPEC "%{!O*:-D__OPTIMIZE__}"
/* Define this as a spec to call the AT&T assembler */ /* Define this as a spec to call the AT&T assembler */
@ -111,22 +113,29 @@ extern struct rtx_def *dsp16xx_lshrhi3_libcall;
/* Tell gcc where to look for the startfile */ /* Tell gcc where to look for the startfile */
#define STANDARD_STARTFILE_PREFIX "/d1600/lib" /*#define STANDARD_STARTFILE_PREFIX "/d1600/lib"*/
/* Tell gcc where to look for its executables */ /* Tell gcc where to look for it's executables */
#define STANDARD_EXEC_PREFIX "/d1600/bin" /*#define STANDARD_EXEC_PREFIX "/d1600/bin"*/
/* Command line options to the AT&T assembler */ /* Command line options to the AT&T assembler */
#define ASM_SPEC "%{v:-V} %{g*:-g}" #define ASM_SPEC "%{V} %{v:%{!V:-V}} %{g*:-g}"
/* Command line options for the AT&T linker */ /* Command line options for the AT&T linker */
#define LINK_SPEC "%{v:-V} %{minit:-i} \
%{!ifile*:%{mmap1:-ifile m1_deflt.if%s} \ #define LINK_SPEC "%{V} %{v:%{!V:-V}} %{minit:-i} \
%{mmap2:-ifile m2_deflt.if%s} \ %{!ifile*:%{mmap1:m1_deflt.if%s} \
%{mmap3:-ifile m3_deflt.if%s} \ %{mmap2:m2_deflt.if%s} \
%{mmap4:-ifile m4_deflt.if%s} \ %{mmap3:m3_deflt.if%s} \
%{!mmap*:-ifile m4_deflt.if%s}} \ %{mmap4:m4_deflt.if%s} \
%{ifile*} %{!r:-a}" %{!mmap*:m4_deflt.if%s}} \
%{ifile*:%*} %{r}"
/* Include path is determined from the environment variable */
#define INCLUDE_DEFAULTS \
{ \
{ 0, 0, 0 } \
}
/* Names to predefine in the preprocessor for this target machine. */ /* Names to predefine in the preprocessor for this target machine. */
#ifdef __MSDOS__ #ifdef __MSDOS__
@ -145,8 +154,6 @@ extern int target_flags;
#define MASK_NEAR_CALL 0x00000002 /* The call is on the same 4k page */ #define MASK_NEAR_CALL 0x00000002 /* The call is on the same 4k page */
#define MASK_NEAR_JUMP 0x00000004 /* The jump is on the same 4k page */ #define MASK_NEAR_JUMP 0x00000004 /* The jump is on the same 4k page */
#define MASK_BMU 0x00000008 /* Use the 'bmu' shift instructions */ #define MASK_BMU 0x00000008 /* Use the 'bmu' shift instructions */
#define MASK_OPTIMIZE_MEMORY 0x00000010 /* Optimize to conserve memory */
#define MASK_OPTIMIZE_SPEED 0x00000020 /* Optimize for speed */
#define MASK_MAP1 0x00000040 /* Link with map1 */ #define MASK_MAP1 0x00000040 /* Link with map1 */
#define MASK_MAP2 0x00000080 /* Link with map2 */ #define MASK_MAP2 0x00000080 /* Link with map2 */
#define MASK_MAP3 0x00000100 /* Link with map3 */ #define MASK_MAP3 0x00000100 /* Link with map3 */
@ -154,8 +161,9 @@ extern int target_flags;
#define MASK_YBASE_HIGH 0x00000400 /* The ybase register window starts high */ #define MASK_YBASE_HIGH 0x00000400 /* The ybase register window starts high */
#define MASK_INIT 0x00000800 /* Have the linker generate tables to #define MASK_INIT 0x00000800 /* Have the linker generate tables to
initialize data at startup */ initialize data at startup */
#define MASK_INLINE_MULT 0x00001000 /* Inline 32 bit multiplies */
#define MASK_RESERVE_YBASE 0x00002000 /* Reserved the ybase registers */ #define MASK_RESERVE_YBASE 0x00002000 /* Reserved the ybase registers */
#define MASK_DEBUG 0x00004000 /* Debugging turned on*/
#define MASK_SAVE_TEMPS 0x00008000 /* Save temps. option seen */
/* Compile passing first two args in regs 0 and 1. /* Compile passing first two args in regs 0 and 1.
This exists only to test compiler features that will This exists only to test compiler features that will
@ -177,12 +185,6 @@ extern int target_flags;
Unit. */ Unit. */
#define TARGET_BMU (target_flags & MASK_BMU) #define TARGET_BMU (target_flags & MASK_BMU)
/* Optimize to conserve memory */
#define TARGET_OPTIMIZE_MEMORY (target_flags & MASK_OPTIMIZE_MEMORY)
/* Optimize for maximum speed */
#define TARGET_OPTIMIZE_SPEED (target_flags & MASK_OPTIMIZE_SPEED)
#define TARGET_YBASE_HIGH (target_flags & MASK_YBASE_HIGH) #define TARGET_YBASE_HIGH (target_flags & MASK_YBASE_HIGH)
/* Direct the linker to output extra info for initialized data */ /* Direct the linker to output extra info for initialized data */
@ -193,6 +195,13 @@ extern int target_flags;
/* Reserve the ybase registers *(0) - *(31) */ /* Reserve the ybase registers *(0) - *(31) */
#define TARGET_RESERVE_YBASE (target_flags & MASK_RESERVE_YBASE) #define TARGET_RESERVE_YBASE (target_flags & MASK_RESERVE_YBASE)
/* We turn this option on internally after seeing "-g" */
#define TARGET_DEBUG (target_flags & MASK_DEBUG)
/* We turn this option on internally after seeing "-save-temps */
#define TARGET_SAVE_TEMPS (target_flags & MASK_SAVE_TEMPS)
/* Macro to define tables used to set the flags. /* Macro to define tables used to set the flags.
This is a list in braces of pairs in braces, This is a list in braces of pairs in braces,
each pair being { "NAME", VALUE } each pair being { "NAME", VALUE }
@ -200,31 +209,46 @@ extern int target_flags;
An empty string NAME is used to identify the default VALUE. */ An empty string NAME is used to identify the default VALUE. */
#define TARGET_SWITCHES \ #define TARGET_SWITCHES \
{ \ { \
{ "regparm", MASK_REGPARM}, \ { "regparm", MASK_REGPARM, \
{ "no-regparm", -MASK_REGPARM}, \ N_("Pass parameters in registers (default)") }, \
{ "no-near-call", -MASK_NEAR_CALL}, \ { "no-regparm", -MASK_REGPARM, \
{ "near-jump", MASK_NEAR_JUMP}, \ N_("Don't pass parameters in registers") }, \
{ "no-near-jump", -MASK_NEAR_JUMP}, \ { "near-call", MASK_NEAR_JUMP, \
{ "bmu", MASK_BMU}, \ N_("Generate code for near calls") }, \
{ "no-bmu", -MASK_BMU}, \ { "no-near-call", -MASK_NEAR_CALL, \
{ "Om", MASK_OPTIMIZE_MEMORY}, \ N_("Don't generate code for near calls") }, \
{ "Os", MASK_OPTIMIZE_SPEED}, \ { "near-jump", MASK_NEAR_JUMP, \
{ "map1", MASK_MAP1}, \ N_("Generate code for near jumps") }, \
{ "map2", MASK_MAP2}, \ { "no-near-jump", -MASK_NEAR_JUMP, \
{ "map3", MASK_MAP3}, \ N_("Don't generate code for near jumps") }, \
{ "map4", MASK_MAP4}, \ { "bmu", MASK_BMU, \
{ "ybase-high", MASK_YBASE_HIGH}, \ N_("Generate code for a bit-manipulation unit") }, \
{ "init", MASK_INIT}, \ { "no-bmu", -MASK_BMU, \
{ "inline-mult", MASK_INLINE_MULT}, \ N_("Don't generate code for a bit-manipulation unit") }, \
{ "reserve-ybase", MASK_RESERVE_YBASE}, \ { "map1", MASK_MAP1, \
{ "", TARGET_DEFAULT} \ N_("Generate code for memory map1") }, \
{ "map2", MASK_MAP2, \
N_("Generate code for memory map2") }, \
{ "map3", MASK_MAP3, \
N_("Generate code for memory map3") }, \
{ "map4", MASK_MAP4, \
N_("Generate code for memory map4") }, \
{ "init", MASK_INIT, \
N_("Ouput extra code for initialized data") }, \
{ "reserve-ybase", MASK_RESERVE_YBASE, \
N_("Don't let reg. allocator use ybase registers") }, \
{ "debug", MASK_DEBUG, \
N_("Output extra debug info in Luxworks environment") }, \
{ "save-temporaries", MASK_SAVE_TEMPS, \
N_("Save temp. files in Luxworks environment") }, \
{ "", TARGET_DEFAULT, ""} \
} }
/* Default target_flags if no switches are specified */ /* Default target_flags if no switches are specified */
#ifndef TARGET_DEFAULT #ifndef TARGET_DEFAULT
#define TARGET_DEFAULT MASK_OPTIMIZE_MEMORY|MASK_REGPARM|MASK_YBASE_HIGH #define TARGET_DEFAULT MASK_REGPARM|MASK_YBASE_HIGH
#endif #endif
/* This macro is similar to `TARGET_SWITCHES' but defines names of /* This macro is similar to `TARGET_SWITCHES' but defines names of
@ -246,11 +270,16 @@ extern int target_flags;
#define TARGET_OPTIONS \ #define TARGET_OPTIONS \
{ \ { \
{ "text=", &text_seg_name }, \ { "text=", &text_seg_name, \
{ "data=", &data_seg_name }, \ N_("Specify alternate name for text section") }, \
{ "bss=", &bss_seg_name }, \ { "data=", &data_seg_name, \
{ "const=", &const_seg_name }, \ N_("Specify alternate name for data section") }, \
{ "chip=", &chip_name } \ { "bss=", &bss_seg_name, \
N_("Specify alternate name for bss section") }, \
{ "const=", &const_seg_name, \
N_("Specify alternate name for constant section") }, \
{ "chip=", &chip_name, \
N_("Specify alternate name for dsp16xx chip") }, \
} }
/* Sometimes certain combinations of command options do not make sense /* Sometimes certain combinations of command options do not make sense
@ -264,18 +293,21 @@ extern int target_flags;
#define OVERRIDE_OPTIONS override_options () #define OVERRIDE_OPTIONS override_options ()
#define OPTIMIZATION_OPTIONS(LEVEL,SIZE) \ #define OPTIMIZATION_OPTIONS(LEVEL,SIZE) \
do \ { \
{ \ flag_gnu_linker = FALSE; \
flag_gnu_linker = FALSE; \ \
\ if (LEVEL >= 2) \
if (SIZE) \ { \
{ \ /* The dsp16xx family has so few registers \
flag_strength_reduce = FALSE; \ * that running the first instruction \
flag_inline_functions = FALSE; \ * scheduling is bad for reg. allocation \
} \ * since it increases lifetimes of pseudos. \
} \ * So turn of first scheduling pass. \
while (0) */ \
flag_schedule_insns = FALSE; \
} \
}
/* STORAGE LAYOUT */ /* STORAGE LAYOUT */
@ -287,7 +319,7 @@ while (0)
/* Define this if most significant bit is lowest numbered /* Define this if most significant bit is lowest numbered
in instructions that operate on numbered bit-fields. in instructions that operate on numbered bit-fields.
*/ */
#define BITS_BIG_ENDIAN 1 #define BITS_BIG_ENDIAN 0
/* Define this if most significant byte of a word is the lowest numbered. /* Define this if most significant byte of a word is the lowest numbered.
We define big-endian, but since the 1600 series cannot address bytes We define big-endian, but since the 1600 series cannot address bytes
@ -377,12 +409,13 @@ while (0)
/* A C expression for a string describing the name of the data type to use for /* A C expression for a string describing the name of the data type to use for
size values. */ size values. */
#define SIZE_TYPE "long unsigned int" #define SIZE_TYPE "unsigned int"
/* A C expression for a string describing the name of the datat type to use for the /* A C expression for a string describing the name of the data type to use for the
result of subtracting two pointers */ result of subtracting two pointers */
#define PTRDIFF_TYPE "long int" #define PTRDIFF_TYPE "int"
/* REGISTER USAGE. */ /* REGISTER USAGE. */
@ -475,6 +508,10 @@ while (0)
/* Do we have a virtual ybase register */ /* Do we have a virtual ybase register */
#define IS_YBASE_REGISTER_WINDOW(REGNO) ((REGNO) >= REG_YBASE0 && (REGNO) <= REG_YBASE31) #define IS_YBASE_REGISTER_WINDOW(REGNO) ((REGNO) >= REG_YBASE0 && (REGNO) <= REG_YBASE31)
#define IS_YBASE_ELIGIBLE_REG(REGNO) (IS_ACCUM_REG (REGNO) || IS_ADDRESS_REGISTER(REGNO) \
|| REGNO == REG_X || REGNO == REG_Y || REGNO == REG_YL \
|| REGNO == REG_PROD || REGNO == REG_PRODL)
#define IS_ADDRESS_REGISTER(REGNO) ((REGNO) >= REG_R0 && (REGNO) <= REG_R3) #define IS_ADDRESS_REGISTER(REGNO) ((REGNO) >= REG_R0 && (REGNO) <= REG_R3)
#define FIXED_REGISTERS \ #define FIXED_REGISTERS \
@ -483,7 +520,7 @@ while (0)
1, \ 1, \
0, 0, 0, 0, \ 0, 0, 0, 0, \
1, 1, 1, \ 1, 1, 1, \
0, 0, \ 1, 0, \
0, 0, 0, 0, 0, 0, 0, 0, \ 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, \ 0, 0, 0, 0, 0, 0, 0, 0, \
0, 0, 0, 0, 0, 0, 0, 0, \ 0, 0, 0, 0, 0, 0, 0, 0, \
@ -501,17 +538,17 @@ while (0)
bit manipulation registers. */ bit manipulation registers. */
#define CALL_USED_REGISTERS \ #define CALL_USED_REGISTERS \
{1, 1, 1, 1, 0, 1, 1, 1, 1, \ {1, 1, 1, 1, 0, 1, 1, 1, 1, /* 0-8 */ \
1, 0, 0, 1, 1, 1, 1, \ 1, 0, 0, 1, 1, 1, 1, /* 9-15 */ \
1, \ 1, /* 16 */ \
0, 0, 1, 1, \ 0, 0, 1, 1, /* 17-20 */ \
1, 1, 1, \ 1, 1, 1, /* 21-23 */ \
0, 1, \ 1, 1, /* 24-25 */ \
0, 0, 0, 0, 0, 0, 0, 0, \ 0, 0, 0, 0, 0, 0, 0, 0, /* 26-33 */ \
0, 0, 0, 0, 0, 0, 0, 0, \ 0, 0, 0, 0, 0, 0, 0, 0, /* 34-41 */ \
0, 0, 0, 0, 0, 0, 0, 0, \ 0, 0, 0, 0, 0, 0, 0, 0, /* 42-49 */ \
0, 0, 0, 0, 0, 0, 0, 0} 0, 0, 0, 0, 0, 0, 0, 0} /* 50-57 */
/* List the order in which to allocate registers. Each register must be /* List the order in which to allocate registers. Each register must be
listed once, even those in FIXED_REGISTERS. listed once, even those in FIXED_REGISTERS.
@ -519,6 +556,7 @@ while (0)
We allocate in the following order: We allocate in the following order:
*/ */
#if 0
#define REG_ALLOC_ORDER \ #define REG_ALLOC_ORDER \
{ REG_R0, REG_R1, REG_R2, REG_PROD, REG_Y, REG_X, \ { REG_R0, REG_R1, REG_R2, REG_PROD, REG_Y, REG_X, \
REG_PRODL, REG_YL, REG_AR0, REG_AR1, \ REG_PRODL, REG_YL, REG_AR0, REG_AR1, \
@ -534,7 +572,24 @@ while (0)
REG_YBASE20, REG_YBASE21, REG_YBASE22, REG_YBASE23, \ REG_YBASE20, REG_YBASE21, REG_YBASE22, REG_YBASE23, \
REG_YBASE24, REG_YBASE25, REG_YBASE26, REG_YBASE27, \ REG_YBASE24, REG_YBASE25, REG_YBASE26, REG_YBASE27, \
REG_YBASE28, REG_YBASE29, REG_YBASE30, REG_YBASE31 } REG_YBASE28, REG_YBASE29, REG_YBASE30, REG_YBASE31 }
#else
#define REG_ALLOC_ORDER \
{ \
REG_A0, REG_A0L, REG_A1, REG_A1L, REG_Y, REG_YL, \
REG_PROD, \
REG_PRODL, REG_R0, REG_J, REG_K, REG_AR2, REG_AR3, \
REG_X, REG_R1, REG_R2, REG_RB, REG_AR0, REG_AR1, \
REG_YBASE0, REG_YBASE1, REG_YBASE2, REG_YBASE3, \
REG_YBASE4, REG_YBASE5, REG_YBASE6, REG_YBASE7, \
REG_YBASE8, REG_YBASE9, REG_YBASE10, REG_YBASE11, \
REG_YBASE12, REG_YBASE13, REG_YBASE14, REG_YBASE15, \
REG_YBASE16, REG_YBASE17, REG_YBASE18, REG_YBASE19, \
REG_YBASE20, REG_YBASE21, REG_YBASE22, REG_YBASE23, \
REG_YBASE24, REG_YBASE25, REG_YBASE26, REG_YBASE27, \
REG_YBASE28, REG_YBASE29, REG_YBASE30, REG_YBASE31, \
REG_R3, REG_YBASE, REG_PT, REG_C0, REG_C1, REG_C2, \
REG_PR }
#endif
/* Zero or more C statements that may conditionally modify two /* Zero or more C statements that may conditionally modify two
variables `fixed_regs' and `call_used_regs' (both of type `char variables `fixed_regs' and `call_used_regs' (both of type `char
[]') after they have been initialized from the two preceding []') after they have been initialized from the two preceding
@ -978,23 +1033,32 @@ enum reg_class
'I' requires a non-negative 16-bit value. 'I' requires a non-negative 16-bit value.
'J' requires a non-negative 9-bit value 'J' requires a non-negative 9-bit value
'K' requires a constant 0 operand. 'K' requires a constant 0 operand.
'L' requires 16-bit value 'L' constant for use in add or sub from low 16-bits
'M' 32-bit value -- low 16-bits zero 'M' 32-bit value -- low 16-bits zero
'N' constant for use incrementing or decrementing a address register
'O' constant for use with and'ing only high 16-bit
'P' constant for use with and'ing only low 16-bit
*/ */
#define SMALL_INT(X) (SMALL_INTVAL (INTVAL (X))) #define SMALL_INT(X) (SMALL_INTVAL (INTVAL (X)))
#define SMALL_INTVAL(I) ((unsigned) (I) < 0x10000) #define SMALL_INTVAL(I) ((unsigned) (I) < 0x10000)
#define SHORT_IMMEDIATE(X) (SHORT_INTVAL (INTVAL(X))) #define SHORT_IMMEDIATE(X) (SHORT_INTVAL (INTVAL(X)))
#define SHORT_INTVAL(I) ((unsigned) (I) < 0x100) #define SHORT_INTVAL(I) ((unsigned) (I) < 0x100)
#define ADD_LOW_16(I) ((I) >= 0 && (I) <= 32767)
#define ADD_HIGH_16(I) (((I) & 0x0000ffff) == 0)
#define AND_LOW_16(I) ((I) >= 0 && (I) <= 32767)
#define AND_HIGH_16(I) (((I) & 0x0000ffff) == 0)
#define CONST_OK_FOR_LETTER_P(VALUE, C) \ #define CONST_OK_FOR_LETTER_P(VALUE, C) \
((C) == 'I' ? (SMALL_INTVAL(VALUE)) \ ((C) == 'I' ? (SMALL_INTVAL(VALUE)) \
: (C) == 'J' ? (SHORT_INTVAL(VALUE)) \ : (C) == 'J' ? (SHORT_INTVAL(VALUE)) \
: (C) == 'K' ? ((VALUE) == 0) \ : (C) == 'K' ? ((VALUE) == 0) \
: (C) == 'L' ? ! ((VALUE) & ~0x0000ffff) \ : (C) == 'L' ? ((VALUE) >= 0 && (VALUE) <= 32767) \
: (C) == 'M' ? ! ((VALUE) & ~0xffff0000) \ : (C) == 'M' ? (((VALUE) & 0x0000ffff) == 0) \
: (C) == 'N' ? ((VALUE) == -1 || (VALUE) == 1 || \ : (C) == 'N' ? ((VALUE) == -1 || (VALUE) == 1 \
(VALUE) == -2 || (VALUE) == 2) \ || (VALUE) == -2 || (VALUE) == 2) \
: (C) == 'O' ? (((VALUE) & 0xffff0000) == 0xffff0000) \
: (C) == 'P' ? (((VALUE) & 0x0000ffff) == 0xffff) \
: 0) : 0)
#define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 1 #define CONST_DOUBLE_OK_FOR_LETTER_P(VALUE, C) 1
@ -1043,6 +1107,7 @@ struct dsp16xx_frame_info
unsigned int reg_size; /* # bytes needed to store regs */ unsigned int reg_size; /* # bytes needed to store regs */
long fp_save_offset; /* offset from vfp to store registers */ long fp_save_offset; /* offset from vfp to store registers */
unsigned long sp_save_offset; /* offset from new sp to store registers */ unsigned long sp_save_offset; /* offset from new sp to store registers */
int pr_save_offset; /* offset to saved PR */
int initialized; /* != 0 if frame size already calculated */ int initialized; /* != 0 if frame size already calculated */
int num_regs; /* number of registers saved */ int num_regs; /* number of registers saved */
int function_makes_calls; /* Does the function make calls */ int function_makes_calls; /* Does the function make calls */
@ -1050,6 +1115,8 @@ struct dsp16xx_frame_info
extern struct dsp16xx_frame_info current_frame_info; extern struct dsp16xx_frame_info current_frame_info;
#define RETURN_ADDR_OFF current_frame_info.pr_save_offset
/* If we generate an insn to push BYTES bytes, /* If we generate an insn to push BYTES bytes,
this says how many the stack pointer really advances by. */ this says how many the stack pointer really advances by. */
/* #define PUSH_ROUNDING(BYTES) ((BYTES)) */ /* #define PUSH_ROUNDING(BYTES) ((BYTES)) */
@ -1402,7 +1469,7 @@ extern struct dsp16xx_frame_info current_frame_info;
return it with a return statement. */ return it with a return statement. */
#define CONST_COSTS(RTX,CODE,OUTER_CODE) \ #define CONST_COSTS(RTX,CODE,OUTER_CODE) \
case CONST_INT: \ case CONST_INT: \
return 0; \ return (unsigned) INTVAL (RTX) < 65536 ? 0 : 2; \
case LABEL_REF: \ case LABEL_REF: \
case SYMBOL_REF: \ case SYMBOL_REF: \
case CONST: \ case CONST: \
@ -1427,45 +1494,21 @@ extern struct dsp16xx_frame_info current_frame_info;
else \ else \
return COSTS_N_INSNS (38); \ return COSTS_N_INSNS (38); \
case PLUS: \ case PLUS: \
if (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT) \
{ \
if (GET_CODE (XEXP (X,1)) == CONST_INT) \
{ \
int number = INTVAL(XEXP (X,1)); \
if (number == 1) \
return COSTS_N_INSNS (1); \
if (INT_FITS_16_BITS(number)) \
return COSTS_N_INSNS (2); \
else \
return COSTS_N_INSNS (4); \
} \
return COSTS_N_INSNS (1); \
} \
else \
return COSTS_N_INSNS (38); \
case MINUS: \ case MINUS: \
if (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT) \ if (GET_MODE_CLASS (GET_MODE (X)) == MODE_INT) \
{ \
if (GET_CODE (XEXP (X,1)) == CONST_INT) \
{ \ { \
if (INT_FITS_16_BITS(INTVAL(XEXP(X,1)))) \ return (1 + \
return COSTS_N_INSNS (2); \ rtx_cost (XEXP (X, 0), CODE) + \
else \ rtx_cost (XEXP (X, 1), CODE)); \
return COSTS_N_INSNS (4); \
} \ } \
return COSTS_N_INSNS (1); \
} \
else \ else \
return COSTS_N_INSNS (38); \ return COSTS_N_INSNS (38); \
\
case AND: case IOR: case XOR: \ case AND: case IOR: case XOR: \
if (GET_CODE (XEXP (X,1)) == CONST_INT) \ return (1 + \
{ \ rtx_cost (XEXP (X, 0), CODE) + \
if (INT_FITS_16_BITS(INTVAL(XEXP(X,1)))) \ rtx_cost (XEXP (X, 1), CODE)); \
return COSTS_N_INSNS (2); \ \
else \
return COSTS_N_INSNS (4); \
} \
return COSTS_N_INSNS (1); \
case NEG: case NOT: \ case NEG: case NOT: \
return COSTS_N_INSNS (1); \ return COSTS_N_INSNS (1); \
case ASHIFT: \ case ASHIFT: \
@ -1478,9 +1521,17 @@ extern struct dsp16xx_frame_info current_frame_info;
number == 16) \ number == 16) \
return COSTS_N_INSNS (1); \ return COSTS_N_INSNS (1); \
else \ else \
{ \
if (TARGET_BMU) \
return COSTS_N_INSNS (2); \ return COSTS_N_INSNS (2); \
else \
return COSTS_N_INSNS (num_1600_core_shifts(number)); \
} \
} \ } \
return COSTS_N_INSNS (1); if (TARGET_BMU) \
return COSTS_N_INSNS (1); \
else \
return COSTS_N_INSNS (15);
/* An expression giving the cost of an addressing mode that contains /* An expression giving the cost of an addressing mode that contains
address. */ address. */
@ -1500,7 +1551,7 @@ extern struct dsp16xx_frame_info current_frame_info;
/* A C expression for the cost of a branch instruction. A value of /* A C expression for the cost of a branch instruction. A value of
1 is the default; */ 1 is the default; */
#define BRANCH_COST 2 #define BRANCH_COST 1
/* Define this because otherwise gcc will try to put the function address /* Define this because otherwise gcc will try to put the function address
@ -1566,11 +1617,15 @@ const_section () \
/* THE OVERALL FRAMEWORK OF AN ASSEMBLER FILE */ /* THE OVERALL FRAMEWORK OF AN ASSEMBLER FILE */
/* Output at beginning of assembler file. */ /* Output at beginning of assembler file. */
#define ASM_FILE_START(FILE) dsp16xx_file_start () #define ASM_FILE_START(FILE) coff_dsp16xx_file_start (FILE)
/* Prevent output of .gcc_compiled */
#define ASM_IDENTIFY_GCC(FILE)
/* A C string constant describing how to begin a comment in the target /* A C string constant describing how to begin a comment in the target
assembler language. */ assembler language. */
/* define ASM_COMMENT_START */ #define ASM_COMMENT_START ""
#define ASM_COMMENT_END ""
/* Output to assembler file text saying following lines /* Output to assembler file text saying following lines
may contain character constants, extra white space, comments, etc. */ may contain character constants, extra white space, comments, etc. */
@ -1605,9 +1660,7 @@ const_section () \
#define ASM_OUTPUT_INT(FILE, EXP) asm_output_long(FILE,INTVAL(EXP)) #define ASM_OUTPUT_INT(FILE, EXP) asm_output_long(FILE,INTVAL(EXP))
/* This is how to output an assembler line for a numeric constant byte. */ /* This is how to output an assembler line for a numeric constant byte. */
#define ASM_OUTPUT_BYTE(FILE,VALUE) \ #define ASM_OUTPUT_BYTE(FILE,VALUE) ASM_OUTPUT_CHAR(FILE,GEN_INT(VALUE))
fprintf ((FILE), "\tint %ld\n", (long)(VALUE))
/* This is how we output a 'c' character string. For the 16xx /* This is how we output a 'c' character string. For the 16xx
assembler we have to do it one letter at a time */ assembler we have to do it one letter at a time */
@ -1643,7 +1696,7 @@ const_section () \
fprintf (asm_out_file, "%d", c); \ fprintf (asm_out_file, "%d", c); \
/* After an octal-escape, if a digit follows, \ /* After an octal-escape, if a digit follows, \
terminate one string constant and start another. \ terminate one string constant and start another. \
The VAX assembler fails to stop reading the escape \ The Vax assembler fails to stop reading the escape \
after three digits, so this is the only way we \ after three digits, so this is the only way we \
can get it to parse the data properly. \ can get it to parse the data properly. \
if (i < thissize - 1 \ if (i < thissize - 1 \
@ -1683,6 +1736,10 @@ const_section () \
(OUTPUT) = (char *) alloca (strlen (NAME) + 11); \ (OUTPUT) = (char *) alloca (strlen (NAME) + 11); \
ASM_GENERATE_INTERNAL_LABEL (OUTPUT, temp, LABELNO); \ ASM_GENERATE_INTERNAL_LABEL (OUTPUT, temp, LABELNO); \
} while (0) } while (0)
#define ASM_OPEN_PAREN "("
#define ASM_CLOSE_PAREN ")"
/* OUTPUT OF UNINITIALIZED VARIABLES */ /* OUTPUT OF UNINITIALIZED VARIABLES */
@ -1837,17 +1894,19 @@ const_section () \
/* CONTROLLING DEBUGGING INFORMATION FORMAT */ /* CONTROLLING DEBUGGING INFORMATION FORMAT */
/* Define this macro if GCC should produce COFF-style debugging output #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
for SDB in response to the '-g' option */
#define SDB_DEBUGGING_INFO
/* Support generating stabs for the listing file generator */
#define DBX_DEBUGGING_INFO
/* The default format when -g is given is still COFF debug info */
#define PREFERRED_DEBUGGING_TYPE SDB_DEBUG
#define DBX_REGISTER_NUMBER(REGNO) (REGNO) #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
#define ASM_OUTPUT_DEF(asm_out_file, LABEL1, LABEL2) \
do { \
fprintf (asm_out_file, ".alias " ); \
ASM_OUTPUT_LABELREF(asm_out_file, LABEL1); \
fprintf (asm_out_file, "=" ); \
ASM_OUTPUT_LABELREF(asm_out_file, LABEL2); \
fprintf (asm_out_file, "\n" ); \
} while (0)
/* MISCELLANEOUS PARAMETERS */ /* MISCELLANEOUS PARAMETERS */
@ -1899,17 +1958,12 @@ const_section () \
#define TARGET_VERSION fprintf (stderr, " (%s, %s)", VERSION_INFO1, __DATE__) #define TARGET_VERSION fprintf (stderr, " (%s, %s)", VERSION_INFO1, __DATE__)
#endif #endif
#define VERSION_INFO1 "AT&T DSP16xx C Cross Compiler, version 1.2.0" #define VERSION_INFO1 "Lucent DSP16xx C Cross Compiler, version 1.3.0b"
/* Define this as 1 if `char' should by default be signed; else as 0. */ /* Define this as 1 if `char' should by default be signed; else as 0. */
#define DEFAULT_SIGNED_CHAR 1 #define DEFAULT_SIGNED_CHAR 1
/* If this macro is defined, GNU CC gathers statistics about the number and
kind of tree node it allocates during each run. The option '-fstats' will
tell the compiler to print these statistics about the sizes of it obstacks. */
#define GATHER_STATISTICS
/* Define this so gcc does not output a call to __main, since we /* Define this so gcc does not output a call to __main, since we
are not currently supporting c++. */ are not currently supporting c++. */
#define INIT_SECTION_ASM_OP 1 #define INIT_SECTION_ASM_OP 1

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