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alpha.c (find_lo_sum_using_gp): Rename from find_lo_sum; also check that GP is being used.

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* config/alpha/alpha.c (find_lo_sum_using_gp): Rename from find_lo_sum;
        also check that GP is being used.
        (alpha_find_lo_sum_using_gp): New.
        (alpha_does_function_need_gp): Use get_attr_usegp.
        * config/alpha/alpha-protos.h: Update.
        * config/alpha/alpha.md (attr usegp): New.  Annotate patterns
        as needed.

From-SVN: r61376
This commit is contained in:
Richard Henderson 2003-01-15 17:50:54 -08:00 committed by Richard Henderson
parent a013431213
commit 77480b0bea
4 changed files with 50 additions and 19 deletions
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10
gcc/ChangeLog
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@ -1,3 +1,13 @@
2003-01-15 Richard Henderson <rth@redhat.com>
* config/alpha/alpha.c (find_lo_sum_using_gp): Rename from find_lo_sum;
also check that GP is being used.
(alpha_find_lo_sum_using_gp): New.
(alpha_does_function_need_gp): Use get_attr_usegp.
* config/alpha/alpha-protos.h: Update.
* config/alpha/alpha.md (attr usegp): New. Annotate patterns
as needed.
2003-01-15 Roger Sayle <roger@eyesopen.com>
* gcse.c (one_cprop_pass): Change function arguments to take both

4
gcc/config/alpha/alpha-protos.h
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@ -1,5 +1,5 @@
/* Prototypes for alpha.c functions used in the md file & elsewhere.
Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
This file is part of GNU CC.
@ -142,6 +142,8 @@ extern rtx function_arg PARAMS ((CUMULATIVE_ARGS, enum machine_mode,
extern void alpha_start_function PARAMS ((FILE *, const char *, tree));
extern void alpha_end_function PARAMS ((FILE *, const char *, tree));
extern int alpha_find_lo_sum_using_gp PARAMS ((rtx));
#ifdef REAL_VALUE_TYPE
extern int check_float_value PARAMS ((enum machine_mode,
REAL_VALUE_TYPE *, int));

25
gcc/config/alpha/alpha.c
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@ -155,7 +155,7 @@ static rtx alpha_expand_builtin
PARAMS ((tree, rtx, rtx, enum machine_mode, int));
static void alpha_sa_mask
PARAMS ((unsigned long *imaskP, unsigned long *fmaskP));
static int find_lo_sum
static int find_lo_sum_using_gp
PARAMS ((rtx *, void *));
static int alpha_does_function_need_gp
PARAMS ((void));
@ -6970,11 +6970,18 @@ const struct attribute_spec vms_attribute_table[] =
#endif
static int
find_lo_sum (px, data)
find_lo_sum_using_gp (px, data)
rtx *px;
void *data ATTRIBUTE_UNUSED;
{
return GET_CODE (*px) == LO_SUM;
return GET_CODE (*px) == LO_SUM && XEXP (*px, 0) == pic_offset_table_rtx;
}
int
alpha_find_lo_sum_using_gp (insn)
rtx insn;
{
return for_each_rtx (&PATTERN (insn), find_lo_sum_using_gp, NULL) > 0;
}
static int
@ -7003,15 +7010,9 @@ alpha_does_function_need_gp ()
for (; insn; insn = NEXT_INSN (insn))
if (INSN_P (insn)
&& GET_CODE (PATTERN (insn)) != USE
&& GET_CODE (PATTERN (insn)) != CLOBBER)
{
enum attr_type type = get_attr_type (insn);
if (type == TYPE_LDSYM || type == TYPE_JSR)
return 1;
if (TARGET_EXPLICIT_RELOCS
&& for_each_rtx (&PATTERN (insn), find_lo_sum, NULL) > 0)
return 1;
}
&& GET_CODE (PATTERN (insn)) != CLOBBER
&& get_attr_usegp (insn))
return 1;
return 0;
}

30
gcc/config/alpha/alpha.md
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@ -142,6 +142,18 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none"
(define_attr "length" ""
(const_int 4))
;; The USEGP attribute marks instructions that have relocations that use
;; the GP.
(define_attr "usegp" "no,yes"
(cond [(eq_attr "type" "ldsym,jsr")
(const_string "yes")
(eq_attr "type" "ild,fld,ist,fst")
(symbol_ref "alpha_find_lo_sum_using_gp(insn)")
]
(const_string "no")))
;; Include scheduling descriptions.
@ -402,7 +414,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none"
(plus:DI (match_operand:DI 1 "register_operand" "r")
(high:DI (match_operand:DI 2 "local_symbolic_operand" ""))))]
"TARGET_EXPLICIT_RELOCS"
"ldah %0,%2(%1)\t\t!gprelhigh")
"ldah %0,%2(%1)\t\t!gprelhigh"
[(set_attr "usegp" "yes")])
(define_split
[(set (match_operand:DI 0 "register_operand" "")
@ -5304,7 +5317,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none"
return "lda %0,%2(%1)\t\t!gprel";
else
return "lda %0,%2(%1)\t\t!gprellow";
})
}
[(set_attr "usegp" "yes")])
(define_split
[(set (match_operand:DI 0 "register_operand" "")
@ -5426,7 +5440,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none"
UNSPEC_DTPREL))]
"HAVE_AS_TLS"
"ldq %0,%2(%1)\t\t!gotdtprel"
[(set_attr "type" "ild")])
[(set_attr "type" "ild")
(set_attr "usegp" "yes")])
(define_split
[(set (match_operand:DI 0 "register_operand" "")
@ -5447,7 +5462,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none"
UNSPEC_TPREL))]
"HAVE_AS_TLS"
"ldq %0,%2(%1)\t\t!gottprel"
[(set_attr "type" "ild")])
[(set_attr "type" "ild")
(set_attr "usegp" "yes")])
(define_split
[(set (match_operand:DI 0 "register_operand" "")
@ -5478,7 +5494,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none"
fmov %R1,%0
ldt %0,%1
stt %R1,%0"
[(set_attr "type" "ilog,iadd,iadd,iadd,ldsym,ild,ist,fcpys,fld,fst")])
[(set_attr "type" "ilog,iadd,iadd,iadd,ldsym,ild,ist,fcpys,fld,fst")
(set_attr "usegp" "*,*,*,yes,*,*,*,*,*,*")])
;; The 'U' constraint matches symbolic operands on Unicos/Mk. Those should
;; have been split up by the rules above but we shouldn't reject the
@ -5525,7 +5542,8 @@ fadd,fmul,fcpys,fdiv,fsqrt,misc,mvi,ftoi,itof,multi,none"
stt %R1,%0
ftoit %1,%0
itoft %1,%0"
[(set_attr "type" "ilog,iadd,iadd,iadd,ldsym,ild,ist,fcpys,fld,fst,ftoi,itof")])
[(set_attr "type" "ilog,iadd,iadd,iadd,ldsym,ild,ist,fcpys,fld,fst,ftoi,itof")
(set_attr "usegp" "*,*,*,yes,*,*,*,*,*,*,*,*")])
(define_insn "*movdi_fix"
[(set (match_operand:DI 0 "nonimmediate_operand" "=r,r,r,r,r,m,*f,*f,Q,r,*f")