the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
-/* Make Saber happier on obstack.[ch]. */
-#if defined(__mips__) || defined(mips)
-#define __PTR_TO_INT(P) ((int)(P))
-#define __INT_TO_PTR(P) ((char *)(P))
-#endif
-
/* Standard GCC variables that we reference. */
extern char *asm_file_name;
PROCESSOR_R3000,
PROCESSOR_R6000,
PROCESSOR_R4000,
- PROCESSOR_R4600
+ PROCESSOR_R4600,
+ PROCESSOR_R8000
};
/* Recast the cpu class to be the cpu attribute. */
extern enum mips_abicalls_type mips_abicalls;/* for svr4 abi pic calls */
extern int mips_isa; /* architectural level */
extern char *mips_cpu_string; /* for -mcpu=<xxx> */
-extern char *mips_isa_string; /* for -mips{1,2,3} */
+extern char *mips_isa_string; /* for -mips{1,2,3,4} */
extern int dslots_load_total; /* total # load related delay slots */
extern int dslots_load_filled; /* # filled load delay slots */
extern int dslots_jump_total; /* total # jump related delay slots */
#define BRANCH_LIKELY_P() (mips_isa >= 2)
#define HAVE_SQRT_P() (mips_isa >= 2)
-/* CC1_SPEC causes -mips3 to set -mfp64 and -mgp64; -mips1 or -mips2
- sets -mfp32 and -mgp32. This can be overridden by an explicit
+/* CC1_SPEC causes -mips3 and -mips4 to set -mfp64 and -mgp64; -mips1 or
+ -mips2 sets -mfp32 and -mgp32. This can be overridden by an explicit
-mfp32, -mfp64, -mgp32 or -mgp64. -mfp64 sets MASK_FLOAT64 in
target_flags, and -mgp64 sets MASK_64BIT.
for (regno = FP_REG_FIRST; regno <= FP_REG_LAST; regno++) \
fixed_regs[regno] = call_used_regs[regno] = 1; \
} \
+ SUBTARGET_CONDITIONAL_REGISTER_USAGE \
} \
while (0)
+/* This is meant to be redefined in the host dependent files */
+#define SUBTARGET_CONDITIONAL_REGISTER_USAGE
+
/* Show we can debug even without a frame pointer. */
#define CAN_DEBUG_WITHOUT_FP
\f
%{K}} \
%{!mmips-as: \
%{mcpu=*} %{m4650} %{mmad:-m4650}} \
-%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{v} \
+%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} %{v} \
%{noasmopt:-O0} \
%{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \
%{g} %{g0} %{g1} %{g2} %{g3} \
%{K}} \
%{mgas: \
%{mcpu=*} %{m4650} %{mmad:-m4650}} \
-%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{v} \
+%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} %{v} \
%{noasmopt:-O0} \
%{!noasmopt:%{O:-O2} %{O1:-O2} %{O2:-O2} %{O3:-O3}} \
%{g} %{g0} %{g1} %{g2} %{g3} \
#ifndef LINK_SPEC
#define LINK_SPEC "\
-%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} \
+%{G*} %{EB} %{EL} %{mips1} %{mips2} %{mips3} %{mips4} \
%{bestGnum} %{shared} %{non_shared}"
#endif /* LINK_SPEC defined */
%{gline:%{!g:%{!g0:%{!g1:%{!g2: -g1}}}}} \
%{mips1:-mfp32 -mgp32}%{mips2:-mfp32 -mgp32}\
%{mips3:%{!msingle-float:%{!m4650:-mfp64}} -mgp64} \
+%{mips4:%{!msingle-float:%{!m4650:-mfp64}} -mgp64} \
%{mfp64:%{msingle-float:%emay not use both -mfp64 and -msingle-float}} \
%{mfp64:%{m4650:%emay not use both -mfp64 and -m4650}} \
%{m4650:-mcpu=r4650} \
%{mlong64:-D__SIZE_TYPE__=long\\ unsigned\\ int -D__PTRDIFF_TYPE__=long\\ int} \
%{!mlong64:-D__SIZE_TYPE__=unsigned\\ int -D__PTRDIFF_TYPE__=int} \
%{mips3:-U__mips -D__mips=3} \
+%{mips4:-U__mips -D__mips=4} \
%{EB:-UMIPSEL -U_MIPSEL -U__MIPSEL -U__MIPSEL__ -D_MIPSEB -D__MIPSEB -D__MIPSEB__ %{!ansi:-DMIPSEB}} \
%{EL:-UMIPSEB -U_MIPSEB -U__MIPSEB -U__MIPSEB__ -D_MIPSEL -D__MIPSEL -D__MIPSEL__ %{!ansi:-DMIPSEL}}"
#endif
/* Internal macros to classify a register number as to whether it's a
general purpose register, a floating point register, a
- multiply/divide register, or a status register.
-
- The macro FP_CALL_REG_P also allows registers $4 and $6 as floating
- point registers to pass floating point as per MIPS spec. */
+ multiply/divide register, or a status register. */
#define GP_REG_FIRST 0
#define GP_REG_LAST 31
#define MD_REG_P(REGNO) ((unsigned) ((REGNO) - MD_REG_FIRST) < MD_REG_NUM)
#define ST_REG_P(REGNO) ((REGNO) == ST_REG_FIRST)
-#define FP_CALL_REG_P(REGNO) \
- (FP_REG_P (REGNO) \
- || (REGNO) == (4 + GP_REG_FIRST) \
- || (REGNO) == (6 + GP_REG_FIRST))
-
/* Return number of consecutive hard regs needed starting at reg REGNO
to hold something of mode MODE.
This is ordinarily the length in words of a value of mode MODE
is larger than 32K bytes. These registers must come from the
scratch register set, and not used for passing and returning
arguments and any other information used in the calling sequence
- (such as pic). */
+ (such as pic). Must start at 12, since t0/t3 are parameter passing
+ registers in the 64 bit ABI. */
-#define MIPS_TEMP1_REGNUM (GP_REG_FIRST + 8)
-#define MIPS_TEMP2_REGNUM (GP_REG_FIRST + 9)
+#define MIPS_TEMP1_REGNUM (GP_REG_FIRST + 12)
+#define MIPS_TEMP2_REGNUM (GP_REG_FIRST + 13)
/* Define this macro if it is as good or better to call a constant
function address than to call an address kept in a register. */
`P' is used for positive 16 bit constants. */
-#define SMALL_INT(X) ((unsigned) (INTVAL (X) + 0x8000) < 0x10000)
-#define SMALL_INT_UNSIGNED(X) ((unsigned) (INTVAL (X)) < 0x10000)
+#define SMALL_INT(X) ((unsigned HOST_WIDE_INT) (INTVAL (X) + 0x8000) < 0x10000)
+#define SMALL_INT_UNSIGNED(X) ((unsigned HOST_WIDE_INT) (INTVAL (X)) < 0x10000)
#define CONST_OK_FOR_LETTER_P(VALUE, C) \
- ((C) == 'I' ? ((unsigned) ((VALUE) + 0x8000) < 0x10000) \
+ ((C) == 'I' ? ((unsigned HOST_WIDE_INT) ((VALUE) + 0x8000) < 0x10000) \
: (C) == 'J' ? ((VALUE) == 0) \
- : (C) == 'K' ? ((unsigned) (VALUE) < 0x10000) \
+ : (C) == 'K' ? ((unsigned HOST_WIDE_INT) (VALUE) < 0x10000) \
: (C) == 'L' ? (((VALUE) & 0x0000ffff) == 0 \
&& (((VALUE) & ~2147483647) == 0 \
|| ((VALUE) & ~2147483647) == ~2147483647)) \
\f
/* Stack layout; function entry, exit and calling. */
+/* Don't enable support for the 64 bit ABI calling convention.
+ Some embedded code depends on the old 64 bit calling convention. */
+#define ABI_64BIT 0
+
/* Define this if pushing a word on the stack
makes the stack pointer a smaller address. */
#define STACK_GROWS_DOWNWARD
in register. In case an argument list is of form GF used registers
are a0 (a2,a3), but we should push over a1... */
-#define REG_PARM_STACK_SPACE(FNDECL) ((4*UNITS_PER_WORD) - FIRST_PARM_OFFSET (FNDECL))
+#define REG_PARM_STACK_SPACE(FNDECL) \
+ ((MAX_ARGS_IN_REGISTERS*UNITS_PER_WORD) - FIRST_PARM_OFFSET (FNDECL))
/* Define this if it is the responsibility of the caller to
allocate the area reserved for arguments passed in registers.
/* Reject combining an embedded PIC text segment reference \
with a register. That requires an additional \
instruction. */ \
+ /* ??? Reject combining an address with a register for the MIPS \
+ 64 bit ABI, because the SGI assembler can not handle this. */ \
if (!TARGET_DEBUG_A_MODE \
+ && ! ABI_64BIT \
&& CONSTANT_ADDRESS_P (xplus1) \
&& (!TARGET_EMBEDDED_PIC \
|| code1 != CONST \
assembler would use $at as a temp to load in the large offset. In this
case $at is already in use. We convert such problem addresses to
`la $5,s;sw $4,70000($5)' via LEGITIMIZE_ADDRESS. */
+/* ??? SGI Irix 6 assembler fails for CONST address, so reject them. */
#define CONSTANT_ADDRESS_P(X) \
((GET_CODE (X) == LABEL_REF || GET_CODE (X) == SYMBOL_REF \
|| GET_CODE (X) == CONST_INT || GET_CODE (X) == HIGH \
|| (GET_CODE (X) == CONST \
- && ! (flag_pic && pic_address_needs_scratch (X)))) \
+ && ! (flag_pic && pic_address_needs_scratch (X)) \
+ && ! ABI_64BIT)) \
&& (!HALF_PIC_P () || !HALF_PIC_ADDRESS_P (X)))
/* Define this, so that when PIC, reload won't try to reload invalid
to be generated at present. Also, the MIPS assembler does not
grok li.d Infinity. */
+/* ??? SGI Irix 6 assembler fails for CONST address, so reject them. */
#define LEGITIMATE_CONSTANT_P(X) \
- (GET_CODE (X) != CONST_DOUBLE || mips_const_double_ok (X, GET_MODE (X)))
-
+ ((GET_CODE (X) != CONST_DOUBLE \
+ || mips_const_double_ok (X, GET_MODE (X))) \
+ && ! (GET_CODE (X) == CONST && ABI_64BIT))
/* A C compound statement that attempts to replace X with a valid
memory address for an operand of mode MODE. WIN will be a C
GO_DEBUG_RTX (xinsn); \
} \
\
+ if (GET_CODE (xinsn) == CONST \
+ && ((flag_pic && pic_address_needs_scratch (xinsn)) \
+ /* ??? SGI's Irix 6 assembler can't handle CONST. */ \
+ || ABI_64BIT)) \
+ { \
+ rtx ptr_reg = gen_reg_rtx (Pmode); \
+ rtx constant = XEXP (XEXP (xinsn, 0), 1); \
+ \
+ emit_move_insn (ptr_reg, XEXP (XEXP (xinsn, 0), 0)); \
+ \
+ X = gen_rtx (PLUS, Pmode, ptr_reg, constant); \
+ if (SMALL_INT (constant)) \
+ goto WIN; \
+ /* Otherwise we fall through so the code below will fix the \
+ constant. */ \
+ xinsn = X; \
+ } \
+ \
if (GET_CODE (xinsn) == PLUS) \
{ \
register rtx xplus0 = XEXP (xinsn, 0); \
} \
} \
\
- if (flag_pic && pic_address_needs_scratch (xinsn)) \
- { \
- rtx ptr_reg = gen_reg_rtx (Pmode); \
- \
- emit_move_insn (ptr_reg, XEXP (XEXP (xinsn, 0), 0)); \
- \
- X = gen_rtx (PLUS, Pmode, ptr_reg, XEXP (XEXP (xinsn, 0), 1)); \
- goto WIN; \
- } \
- \
if (TARGET_DEBUG_B_MODE) \
GO_PRINTF ("LEGITIMIZE_ADDRESS could not fix.\n"); \
}
strength reduction, and also makes it easier to identify what the
compiler is doing. */
+/* ??? Fix this to be right for the R8000. */
#define RTX_COSTS(X,CODE,OUTER_CODE) \
case MEM: \
{ \
&& (FROM) == GR_REGS) ? 6 \
: 12)
+/* ??? Fix this to be right for the R8000. */
#define MEMORY_MOVE_COST(MODE) \
((mips_cpu == PROCESSOR_R4000 || mips_cpu == PROCESSOR_R6000) ? 6 : 4)
/* A C expression for the cost of a branch instruction. A value of
1 is the default; other values are interpreted relative to that. */
+/* ??? Fix this to be right for the R8000. */
#define BRANCH_COST \
((mips_cpu == PROCESSOR_R4000 || mips_cpu == PROCESSOR_R6000) ? 2 : 1)
#define ASM_OUTPUT_SOURCE_FILENAME(STREAM, NAME) \
mips_output_filename (STREAM, NAME)
+/* This is defined so that it can be overriden in iris6.h. */
+#define ASM_OUTPUT_FILENAME(STREAM, NUM_SOURCE_FILENAMES, NAME) \
+do \
+ { \
+ fprintf (STREAM, "\t.file\t%d ", NUM_SOURCE_FILENAMES); \
+ output_quoted_string (STREAM, NAME); \
+ fputs ("\n", STREAM); \
+ } \
+while (0)
+
/* This is how to output a note the debugger telling it the line number
to which the following sequence of instructions corresponds.
Silicon graphics puts a label after each .loc. */
fprintf (STREAM, "\t%s\t$L%d-$LS%d\n", \
TARGET_LONG64 ? ".dword" : ".word", \
VALUE, REL); \
- else \
+ else if (! ABI_64BIT) \
fprintf (STREAM, "\t%s\t$L%d\n", \
TARGET_LONG64 ? ".gpdword" : ".gpword", \
VALUE); \
+ else \
+ fprintf (STREAM, "\t%s\t.L%d\n", \
+ TARGET_LONG64 ? ".dword" : ".word", \
+ VALUE); \
} while (0)
/* When generating embedded PIC code we want to put the jump table in
projects / platform / upstream / gcc.git / commitdiff