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mips.c (mips_emit_prefetch): Restructure to avoid use of arrays, handle indexed prefetch. 

2003-10-03  Chris Demetriou  <cgd@broadcom.com>

        * config/mips/mips.c (mips_emit_prefetch): Restructure
        to avoid use of arrays, handle indexed prefetch.
        * config/mips/mips.h (ISA_HAS_FP4, ISA_HAS_PREFETCH): Update comments.
        (ISA_HAS_PREFETCHX): New deffine.
        * config/mips/mips.md ("type" attr): Add new "prefetchx" value,
        update comments.
        (prefetch_indexed_di, prefetch_indexed_si): New insns.

From-SVN: r72077
This commit is contained in:
Chris Demetriou 2003-10-03 21:13:13 +00:00 committed by Chris Demetriou
parent 1ec57cf03b
commit 4dbe1556cc
4 changed files with 56 additions and 27 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2003-10-03 Chris Demetriou <cgd@broadcom.com>
* config/mips/mips.c (mips_emit_prefetch): Restructure
to avoid use of arrays, handle indexed prefetch.
* config/mips/mips.h (ISA_HAS_FP4, ISA_HAS_PREFETCH): Update comments.
(ISA_HAS_PREFETCHX): New deffine.
* config/mips/mips.md ("type" attr): Add new "prefetchx" value,
update comments.
(prefetch_indexed_di, prefetch_indexed_si): New insns.
2003-10-03 Jeff Sturm <jsturm@one-point.com>
Roger Sayle <roger@eyesopen.com>

34
gcc/config/mips/mips.c
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@ -9636,30 +9636,22 @@ mips_use_dfa_pipeline_interface (void)
const char *
mips_emit_prefetch (rtx *operands)
{
/* For the mips32/64 architectures the hint fields are arranged
by operation (load/store) and locality (normal/streamed/retained).
Irritatingly, numbers 2 and 3 are reserved leaving no simple
algorithm for figuring the hint. */
int write = INTVAL (operands[1]);
int locality = INTVAL (operands[2]);
int indexed = GET_CODE (operands[3]) == REG;
int code;
char buffer[30];
if (locality <= 0)
code = (write ? 5 : 4); /* store_streamed / load_streamed. */
else if (locality <= 2)
code = (write ? 1 : 0); /* store / load. */
else
code = (write ? 7 : 6); /* store_retained / load_retained. */
static const char * const alt[2][4] = {
{
"pref\t4,%3(%0)",
"pref\t0,%3(%0)",
"pref\t0,%3(%0)",
"pref\t6,%3(%0)"
},
{
"pref\t5,%3(%0)",
"pref\t1,%3(%0)",
"pref\t1,%3(%0)",
"pref\t7,%3(%0)"
}
};
return alt[write][locality];
sprintf (buffer, "%s\t%d,%%3(%%0)", indexed ? "prefx" : "pref", code);
output_asm_insn (buffer, operands);
return "";
}

16
gcc/config/mips/mips.h
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@ -823,9 +823,9 @@ extern const struct mips_cpu_info *mips_tune_info;
|| ISA_MIPS32R2 \
|| ISA_MIPS64)
/* This is a catch all for the other new mips4 instructions: indexed load and
indexed prefetch instructions, the FP madd and msub instructions,
and the FP recip and recip sqrt instructions */
/* This is a catch all for other mips4 instructions: indexed load, the
FP madd and msub instructions, and the FP recip and recip sqrt
instructions. */
#define ISA_HAS_FP4 ((ISA_MIPS4 \
|| ISA_MIPS64) \
&& !TARGET_MIPS16)
@ -901,13 +901,21 @@ extern const struct mips_cpu_info *mips_tune_info;
|| TARGET_SR71K \
))
/* ISA has data prefetch instruction. */
/* ISA has data prefetch instructions. This controls use of 'pref'. */
#define ISA_HAS_PREFETCH ((ISA_MIPS4 \
|| ISA_MIPS32 \
|| ISA_MIPS32R2 \
|| ISA_MIPS64) \
&& !TARGET_MIPS16)
/* ISA has data indexed prefetch instructions. This controls use of
'prefx', along with TARGET_HARD_FLOAT and TARGET_DOUBLE_FLOAT.
(prefx is a cop1x instruction, so can only be used if FP is
enabled.) */
#define ISA_HAS_PREFETCHX ((ISA_MIPS4 \
|| ISA_MIPS64) \
&& !TARGET_MIPS16)
/* True if trunc.w.s and trunc.w.d are real (not synthetic)
instructions. Both require TARGET_HARD_FLOAT, and trunc.w.d
also requires TARGET_DOUBLE_FLOAT. */

23
gcc/config/mips/mips.md
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@ -98,7 +98,8 @@
;; call unconditional call
;; load load instruction(s)
;; store store instruction(s)
;; prefetch memory prefetch
;; prefetch memory prefetch (register + offset)
;; prefetchx memory indexed prefetch (register + register)
;; move data movement within same register set
;; condmove conditional moves
;; xfer transfer to/from coprocessor
@ -123,7 +124,7 @@
;; multi multiword sequence (or user asm statements)
;; nop no operation
(define_attr "type"
"unknown,branch,jump,call,load,store,prefetch,move,condmove,xfer,hilo,const,arith,darith,imul,imadd,idiv,icmp,fadd,fmul,fmadd,fdiv,fabs,fneg,fcmp,fcvt,fsqrt,frsqrt,multi,nop"
"unknown,branch,jump,call,load,store,prefetch,prefetchx,move,condmove,xfer,hilo,const,arith,darith,imul,imadd,idiv,icmp,fadd,fmul,fmadd,fdiv,fabs,fneg,fcmp,fcvt,fsqrt,frsqrt,multi,nop"
(cond [(eq_attr "jal" "!unset")
(const_string "call")]
(const_string "unknown")))
@ -8513,6 +8514,15 @@ ld\t%2,%1-%S1(%2)\;daddu\t%2,%2,$31\;%*j\t%2%/"
{ return mips_emit_prefetch (operands); }
[(set_attr "type" "prefetch")])
(define_insn "prefetch_indexed_si"
[(prefetch (plus:SI (match_operand:SI 0 "register_operand" "r")
(match_operand:SI 3 "register_operand" "r"))
(match_operand:SI 1 "const_int_operand" "n")
(match_operand:SI 2 "const_int_operand" "n"))]
"ISA_HAS_PREFETCHX && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT && Pmode == SImode"
{ return mips_emit_prefetch (operands); }
[(set_attr "type" "prefetchx")])
(define_insn "prefetch_si"
[(prefetch (match_operand:SI 0 "register_operand" "r")
(match_operand:SI 1 "const_int_operand" "n")
@ -8533,6 +8543,15 @@ ld\t%2,%1-%S1(%2)\;daddu\t%2,%2,$31\;%*j\t%2%/"
{ return mips_emit_prefetch (operands); }
[(set_attr "type" "prefetch")])
(define_insn "prefetch_indexed_di"
[(prefetch (plus:DI (match_operand:DI 0 "register_operand" "r")
(match_operand:DI 3 "register_operand" "r"))
(match_operand:DI 1 "const_int_operand" "n")
(match_operand:DI 2 "const_int_operand" "n"))]
"ISA_HAS_PREFETCHX && TARGET_HARD_FLOAT && TARGET_DOUBLE_FLOAT && Pmode == DImode"
{ return mips_emit_prefetch (operands); }
[(set_attr "type" "prefetchx")])
(define_insn "prefetch_di"
[(prefetch (match_operand:DI 0 "register_operand" "r")
(match_operand:DI 1 "const_int_operand" "n")