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constraints.md (U, v): New constraints.

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2015-07-14  Sandra Loosemore  <sandra@codesourcery.com>
	    Cesar Philippidis  <cesar@codesourcery.com>
	    Chung-Lin Tang  <cltang@codesourcery.com>

	gcc/
	* config/nios2/constraints.md (U, v): New constraints.
	* config/nios2/predicates.md (rdprs_dcache_operand): New.
	(ldstex_memory_operand): New.
	* config/nios2/sync.md: New file.
	* config/nios2/nios2.md (unspecv): Add new builtin function
	UNSPECV codes.
	(rdprs, flushd, flushda, wrpie, eni): New patterns.
	(top-level): Include sync.md.
	* config/nios2/nios2.c (N2_FTYPES): Add function types for
	new builtins.
	(N2_BUILTINS): Add arch field setting, add new builtins.
	(enum nios2_builtin_code,nios2_builtins): Update N2_BUILTIN_DEF
	for arch field.
	(nios2_expand_ldst_builtin): Rename from nios2_expand_ldstio_builtin.
	Also handle ldex/stex/ldsex/stsex builtins.
	(nios2_expand_rdprs_builtin): New function.
	(nios2_expand_cache_builtin): New function.
	(nios2_expand_wrpie_builtin): New function.
	(nios2_expand_eni_builtin): New function.
	(nios2_expand_builtin): Add arch field handling and new builtin 
        cases.
	* doc/extend.texi (Altera Nios II Built-in Functions): Document
	new builtins.
	* doc/md.texi (Machine Constraints): Document U and v constraints.

	gcc/testsuite/
	* gcc.target/nios2/nios2-flushd.c: New.
	* gcc.target/nios2/nios2-rdprs.c: New.
	* gcc.target/nios2/r2-atomic.c: New.
	* gcc.target/nios2/r2-eni.c: New.
	* gcc.target/nios2/r2-wrpie.c: New.

Co-Authored-By: Cesar Philippidis <cesar@codesourcery.com>
Co-Authored-By: Chung-Lin Tang <cltang@codesourcery.com>

From-SVN: r225800
This commit is contained in:
Sandra Loosemore 2015-07-14 19:43:48 -04:00 • committed by Sandra Loosemore
parent c3ff2812ae
commit 524d2e49f2
14 changed files with 429 additions and 21 deletions
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29
gcc/ChangeLog
View file

@ -1,3 +1,32 @@
2015-07-14 Sandra Loosemore <sandra@codesourcery.com>
Cesar Philippidis <cesar@codesourcery.com>
Chung-Lin Tang <cltang@codesourcery.com>
* config/nios2/constraints.md (U, v): New constraints.
* config/nios2/predicates.md (rdprs_dcache_operand): New.
(ldstex_memory_operand): New.
* config/nios2/sync.md: New file.
* config/nios2/nios2.md (unspecv): Add new builtin function
UNSPECV codes.
(rdprs, flushd, flushda, wrpie, eni): New patterns.
(top-level): Include sync.md.
* config/nios2/nios2.c (N2_FTYPES): Add function types for
new builtins.
(N2_BUILTINS): Add arch field setting, add new builtins.
(enum nios2_builtin_code,nios2_builtins): Update N2_BUILTIN_DEF
for arch field.
(nios2_expand_ldst_builtin): Rename from nios2_expand_ldstio_builtin.
Also handle ldex/stex/ldsex/stsex builtins.
(nios2_expand_rdprs_builtin): New function.
(nios2_expand_cache_builtin): New function.
(nios2_expand_wrpie_builtin): New function.
(nios2_expand_eni_builtin): New function.
(nios2_expand_builtin): Add arch field handling and new builtin
cases.
* doc/extend.texi (Altera Nios II Built-in Functions): Document
new builtins.
* doc/md.texi (Machine Constraints): Document U and v constraints.
2015-07-14 Sandra Loosemore <sandra@codesourcery.com>
Cesar Philippidis <cesar@codesourcery.com>
Chung-Lin Tang <cltang@codesourcery.com>

13
gcc/config/nios2/constraints.md
View file

@ -28,9 +28,11 @@
;; M: 0
;; N: 0 to 255 (for custom instruction numbers)
;; O: 0 to 31 (for control register numbers)
;; U: -32768 to 32767 under R1, -2048 to 2047 under R2
;;
;; We use the following constraint letters for memory constraints
;;
;; v: memory operands for R2 load/store exclusive instructions
;; w: memory operands for load/store IO and cache instructions
;;
;; We use the following built-in register classes:
@ -100,6 +102,17 @@
"A constant unspec offset representing a relocation."
(match_test "nios2_unspec_reloc_p (op)"))
(define_constraint "U"
"A 12-bit or 16-bit constant (for RDPRS and DCACHE)."
(and (match_code "const_int")
(if_then_else (match_test "TARGET_ARCH_R2")
(match_test "SMALL_INT12 (ival)")
(match_test "SMALL_INT (ival)"))))
(define_memory_constraint "v"
"A memory operand suitable for R2 load/store exclusive instructions."
(match_operand 0 "ldstex_memory_operand"))
(define_memory_constraint "w"
"A memory operand suitable for load/store IO and cache instructions."
(match_operand 0 "ldstio_memory_operand"))

165
gcc/config/nios2/nios2.c
View file

@ -135,12 +135,16 @@ static bool custom_code_conflict = false;
N2_FTYPE(2, (SI, SF)) \
N2_FTYPE(3, (SI, SF, SF)) \
N2_FTYPE(2, (SI, SI)) \
N2_FTYPE(3, (SI, SI, SI)) \
N2_FTYPE(3, (SI, VPTR, SI)) \
N2_FTYPE(2, (UI, CVPTR)) \
N2_FTYPE(2, (UI, DF)) \
N2_FTYPE(2, (UI, SF)) \
N2_FTYPE(2, (VOID, DF)) \
N2_FTYPE(2, (VOID, SF)) \
N2_FTYPE(2, (VOID, SI)) \
N2_FTYPE(3, (VOID, SI, SI)) \
N2_FTYPE(2, (VOID, VPTR)) \
N2_FTYPE(3, (VOID, VPTR, SI))
#define N2_FTYPE_OP1(R) N2_FTYPE_ ## R ## _VOID
@ -3266,33 +3270,43 @@ nios2_expand_custom_builtin (tree exp, unsigned int index, rtx target)
struct nios2_builtin_desc
{
enum insn_code icode;
enum nios2_arch_type arch;
enum nios2_ftcode ftype;
const char *name;
};
#define N2_BUILTINS \
N2_BUILTIN_DEF (sync, N2_FTYPE_VOID_VOID) \
N2_BUILTIN_DEF (ldbio, N2_FTYPE_SI_CVPTR) \
N2_BUILTIN_DEF (ldbuio, N2_FTYPE_UI_CVPTR) \
N2_BUILTIN_DEF (ldhio, N2_FTYPE_SI_CVPTR) \
N2_BUILTIN_DEF (ldhuio, N2_FTYPE_UI_CVPTR) \
N2_BUILTIN_DEF (ldwio, N2_FTYPE_SI_CVPTR) \
N2_BUILTIN_DEF (stbio, N2_FTYPE_VOID_VPTR_SI) \
N2_BUILTIN_DEF (sthio, N2_FTYPE_VOID_VPTR_SI) \
N2_BUILTIN_DEF (stwio, N2_FTYPE_VOID_VPTR_SI) \
N2_BUILTIN_DEF (rdctl, N2_FTYPE_SI_SI) \
N2_BUILTIN_DEF (wrctl, N2_FTYPE_VOID_SI_SI)
N2_BUILTIN_DEF (sync, R1, N2_FTYPE_VOID_VOID) \
N2_BUILTIN_DEF (ldbio, R1, N2_FTYPE_SI_CVPTR) \
N2_BUILTIN_DEF (ldbuio, R1, N2_FTYPE_UI_CVPTR) \
N2_BUILTIN_DEF (ldhio, R1, N2_FTYPE_SI_CVPTR) \
N2_BUILTIN_DEF (ldhuio, R1, N2_FTYPE_UI_CVPTR) \
N2_BUILTIN_DEF (ldwio, R1, N2_FTYPE_SI_CVPTR) \
N2_BUILTIN_DEF (stbio, R1, N2_FTYPE_VOID_VPTR_SI) \
N2_BUILTIN_DEF (sthio, R1, N2_FTYPE_VOID_VPTR_SI) \
N2_BUILTIN_DEF (stwio, R1, N2_FTYPE_VOID_VPTR_SI) \
N2_BUILTIN_DEF (rdctl, R1, N2_FTYPE_SI_SI) \
N2_BUILTIN_DEF (wrctl, R1, N2_FTYPE_VOID_SI_SI) \
N2_BUILTIN_DEF (rdprs, R1, N2_FTYPE_SI_SI_SI) \
N2_BUILTIN_DEF (flushd, R1, N2_FTYPE_VOID_VPTR) \
N2_BUILTIN_DEF (flushda, R1, N2_FTYPE_VOID_VPTR) \
N2_BUILTIN_DEF (wrpie, R2, N2_FTYPE_SI_SI) \
N2_BUILTIN_DEF (eni, R2, N2_FTYPE_VOID_SI) \
N2_BUILTIN_DEF (ldex, R2, N2_FTYPE_SI_CVPTR) \
N2_BUILTIN_DEF (ldsex, R2, N2_FTYPE_SI_CVPTR) \
N2_BUILTIN_DEF (stex, R2, N2_FTYPE_SI_VPTR_SI) \
N2_BUILTIN_DEF (stsex, R2, N2_FTYPE_SI_VPTR_SI)
enum nios2_builtin_code {
#define N2_BUILTIN_DEF(name, ftype) NIOS2_BUILTIN_ ## name,
#define N2_BUILTIN_DEF(name, arch, ftype) NIOS2_BUILTIN_ ## name,
N2_BUILTINS
#undef N2_BUILTIN_DEF
NUM_FIXED_NIOS2_BUILTINS
};
static const struct nios2_builtin_desc nios2_builtins[] = {
#define N2_BUILTIN_DEF(name, ftype) \
{ CODE_FOR_ ## name, ftype, "__builtin_" #name },
#define N2_BUILTIN_DEF(name, arch, ftype) \
{ CODE_FOR_ ## name, ARCH_ ## arch, ftype, "__builtin_" #name },
N2_BUILTINS
#undef N2_BUILTIN_DEF
};
@ -3373,10 +3387,11 @@ nios2_expand_builtin_insn (const struct nios2_builtin_desc *d, int n,
}
}
/* Expand ldio/stio form load-store instruction builtins. */
/* Expand ldio/stio and ldex/ldsex/stex/stsex form load-store
instruction builtins. */
static rtx
nios2_expand_ldstio_builtin (tree exp, rtx target,
const struct nios2_builtin_desc *d)
nios2_expand_ldst_builtin (tree exp, rtx target,
const struct nios2_builtin_desc *d)
{
bool has_target_p;
rtx addr, mem, val;
@ -3388,14 +3403,21 @@ nios2_expand_ldstio_builtin (tree exp, rtx target,
if (insn_data[d->icode].operand[0].allows_mem)
{
/* stxio. */
/* stxio/stex/stsex. */
val = expand_normal (CALL_EXPR_ARG (exp, 1));
if (CONST_INT_P (val))
val = force_reg (mode, gen_int_mode (INTVAL (val), mode));
val = simplify_gen_subreg (mode, val, GET_MODE (val), 0);
create_output_operand (&ops[0], mem, mode);
create_input_operand (&ops[1], val, mode);
has_target_p = false;
if (insn_data[d->icode].n_operands == 3)
{
/* stex/stsex status value, returned as result of function. */
create_output_operand (&ops[2], target, mode);
has_target_p = true;
}
else
has_target_p = false;
}
else
{
@ -3404,7 +3426,8 @@ nios2_expand_ldstio_builtin (tree exp, rtx target,
create_input_operand (&ops[1], mem, mode);
has_target_p = true;
}
return nios2_expand_builtin_insn (d, 2, ops, has_target_p);
return nios2_expand_builtin_insn (d, insn_data[d->icode].n_operands, ops,
has_target_p);
}
/* Expand rdctl/wrctl builtins. */
@ -3436,6 +3459,81 @@ nios2_expand_rdwrctl_builtin (tree exp, rtx target,
return nios2_expand_builtin_insn (d, 2, ops, has_target_p);
}
static rtx
nios2_expand_rdprs_builtin (tree exp, rtx target,
const struct nios2_builtin_desc *d)
{
rtx reg = expand_normal (CALL_EXPR_ARG (exp, 0));
rtx imm = expand_normal (CALL_EXPR_ARG (exp, 1));
struct expand_operand ops[MAX_RECOG_OPERANDS];
if (!rdwrctl_operand (reg, VOIDmode))
{
error ("Register number must be in range 0-31 for %s",
d->name);
return gen_reg_rtx (SImode);
}
if (!rdprs_dcache_operand (imm, VOIDmode))
{
error ("The immediate value must fit into a %d-bit integer for %s",
(TARGET_ARCH_R2) ? 12 : 16, d->name);
return gen_reg_rtx (SImode);
}
create_output_operand (&ops[0], target, SImode);
create_input_operand (&ops[1], reg, SImode);
create_integer_operand (&ops[2], INTVAL (imm));
return nios2_expand_builtin_insn (d, 3, ops, true);
}
static rtx
nios2_expand_cache_builtin (tree exp, rtx target ATTRIBUTE_UNUSED,
const struct nios2_builtin_desc *d)
{
rtx mem, addr;
struct expand_operand ops[MAX_RECOG_OPERANDS];
addr = expand_normal (CALL_EXPR_ARG (exp, 0));
mem = gen_rtx_MEM (SImode, addr);
create_input_operand (&ops[0], mem, SImode);
return nios2_expand_builtin_insn (d, 1, ops, false);
}
static rtx
nios2_expand_wrpie_builtin (tree exp, rtx target,
const struct nios2_builtin_desc *d)
{
rtx val;
struct expand_operand ops[MAX_RECOG_OPERANDS];
val = expand_normal (CALL_EXPR_ARG (exp, 0));
create_input_operand (&ops[1], val, SImode);
create_output_operand (&ops[0], target, SImode);
return nios2_expand_builtin_insn (d, 2, ops, true);
}
static rtx
nios2_expand_eni_builtin (tree exp, rtx target ATTRIBUTE_UNUSED,
const struct nios2_builtin_desc *d)
{
rtx imm = expand_normal (CALL_EXPR_ARG (exp, 0));
struct expand_operand ops[MAX_RECOG_OPERANDS];
if (INTVAL (imm) != 0 && INTVAL (imm) != 1)
{
error ("The ENI instruction operand must be either 0 or 1");
return const0_rtx;
}
create_integer_operand (&ops[0], INTVAL (imm));
return nios2_expand_builtin_insn (d, 1, ops, false);
}
/* Implement TARGET_EXPAND_BUILTIN. Expand an expression EXP that calls
a built-in function, with result going to TARGET if that's convenient
(and in mode MODE if that's convenient).
@ -3454,6 +3552,14 @@ nios2_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
{
const struct nios2_builtin_desc *d = &nios2_builtins[fcode];
if (d->arch > nios2_arch_option)
{
error ("Builtin function %s requires Nios II R%d",
d->name, (int) d->arch);
/* Given it is invalid, just generate a normal call. */
return expand_call (exp, target, ignore);
}
switch (fcode)
{
case NIOS2_BUILTIN_sync:
@ -3468,12 +3574,29 @@ nios2_expand_builtin (tree exp, rtx target, rtx subtarget ATTRIBUTE_UNUSED,
case NIOS2_BUILTIN_stbio:
case NIOS2_BUILTIN_sthio:
case NIOS2_BUILTIN_stwio:
return nios2_expand_ldstio_builtin (exp, target, d);
case NIOS2_BUILTIN_ldex:
case NIOS2_BUILTIN_ldsex:
case NIOS2_BUILTIN_stex:
case NIOS2_BUILTIN_stsex:
return nios2_expand_ldst_builtin (exp, target, d);
case NIOS2_BUILTIN_rdctl:
case NIOS2_BUILTIN_wrctl:
return nios2_expand_rdwrctl_builtin (exp, target, d);
case NIOS2_BUILTIN_rdprs:
return nios2_expand_rdprs_builtin (exp, target, d);
case NIOS2_BUILTIN_flushd:
case NIOS2_BUILTIN_flushda:
return nios2_expand_cache_builtin (exp, target, d);
case NIOS2_BUILTIN_wrpie:
return nios2_expand_wrpie_builtin (exp, target, d);
case NIOS2_BUILTIN_eni:
return nios2_expand_eni_builtin (exp, target, d);
default:
gcc_unreachable ();
}

55
gcc/config/nios2/nios2.md
View file

@ -62,6 +62,15 @@
UNSPECV_CUSTOM_XNXX
UNSPECV_LDXIO
UNSPECV_STXIO
UNSPECV_RDPRS
UNSPECV_FLUSHD
UNSPECV_FLUSHDA
UNSPECV_WRPIE
UNSPECV_ENI
UNSPECV_LDEX
UNSPECV_LDSEX
UNSPECV_STEX
UNSPECV_STSEX
])
(define_c_enum "unspec" [
@ -1127,6 +1136,48 @@
"wrctl\\tctl%0, %z1"
[(set_attr "type" "control")])
(define_insn "rdprs"
[(set (match_operand:SI 0 "register_operand" "=r")
(unspec_volatile:SI [(match_operand:SI 1 "rdwrctl_operand" "O")
(match_operand:SI 2 "arith_operand" "U")]
UNSPECV_RDPRS))]
""
"rdprs\\t%0, %1, %2"
[(set_attr "type" "control")])
;; Cache Instructions
(define_insn "flushd"
[(unspec_volatile:SI [(match_operand:SI 0 "ldstio_memory_operand" "w")]
UNSPECV_FLUSHD)]
""
"flushd\\t%0"
[(set_attr "type" "control")])
(define_insn "flushda"
[(unspec_volatile:SI [(match_operand:SI 0 "ldstio_memory_operand" "w")]
UNSPECV_FLUSHDA)]
""
"flushda\\t%0"
[(set_attr "type" "control")])
;; R2 Instructions
(define_insn "wrpie"
[(set (match_operand:SI 0 "register_operand" "=r")
(unspec_volatile:SI [(match_operand:SI 1 "register_operand" "r")]
UNSPECV_WRPIE))]
"TARGET_ARCH_R2"
"wrpie\\t%0, %1"
[(set_attr "type" "control")])
(define_insn "eni"
[(unspec:VOID [(match_operand 0 "const_int_operand" "i")]
UNSPECV_ENI)]
"TARGET_ARCH_R2"
"eni\\t%0"
[(set_attr "type" "control")])
;; Trap patterns
(define_insn "trap"
[(trap_if (const_int 1) (const_int 3))]
@ -1172,6 +1223,10 @@
emit_move_insn (operands[0], gen_rtx_REG (Pmode, TP_REGNO));
DONE;
})
;; Synchronization Primitives
(include "sync.md")
;; Include the ldwm/stwm/push.n/pop.n patterns and peepholes.
(include "ldstwm.md")

13
gcc/config/nios2/predicates.md
View file

@ -81,6 +81,12 @@
(and (match_code "const_int")
(match_test "RDWRCTL_INT (INTVAL (op))")))
(define_predicate "rdprs_dcache_operand"
(and (match_code "const_int")
(if_then_else (match_test "TARGET_ARCH_R2")
(match_test "SMALL_INT12 (INTVAL (op))")
(match_test "SMALL_INT (INTVAL (op))"))))
(define_predicate "custom_insn_opcode"
(and (match_code "const_int")
(match_test "CUSTOM_INSN_OPCODE (INTVAL (op))")))
@ -144,3 +150,10 @@
}
return memory_operand (op, mode);
})
(define_predicate "ldstex_memory_operand"
(match_code "mem")
{
/* ldex/ldsex/stex/stsex cannot handle memory addresses with offsets. */
return GET_CODE (XEXP (op, 0)) == REG;
})

45
gcc/config/nios2/sync.md Normal file
View file

@ -0,0 +1,45 @@
;; Machine Description for Altera Nios II synchronization primitives.
;; Copyright (C) 2014-2015 Free Software Foundation, Inc.
;; Contributed by Mentor Graphics, Inc.
;;
;; This file is part of GCC.
;;
;; GCC 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 3, or (at your option)
;; any later version.
;;
;; GCC 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 GCC; see the file COPYING3. If not see
;; <http://www.gnu.org/licenses/>.
(define_int_iterator UNSPECV_LOAD_EXCLUSIVE [UNSPECV_LDEX UNSPECV_LDSEX])
(define_int_attr load_exclusive [(UNSPECV_LDEX "ldex")
(UNSPECV_LDSEX "ldsex")])
(define_insn "<load_exclusive>"
[(set (match_operand:SI 0 "register_operand" "=r")
(unspec_volatile:SI
[(match_operand:SI 1 "ldstex_memory_operand" "v")]
UNSPECV_LOAD_EXCLUSIVE))]
"TARGET_ARCH_R2"
"<load_exclusive>\\t%0, %A1"
[(set_attr "type" "ld")])
(define_int_iterator UNSPECV_STORE_EXCLUSIVE [UNSPECV_STEX UNSPECV_STSEX])
(define_int_attr store_exclusive [(UNSPECV_STEX "stex")
(UNSPECV_STSEX "stsex")])
(define_insn "<store_exclusive>"
[(set (match_operand:SI 2 "register_operand" "=r")
(unspec_volatile:SI [(const_int 0)] UNSPECV_STORE_EXCLUSIVE))
(set (match_operand:SI 0 "ldstex_memory_operand" "=v")
(unspec_volatile:SI
[(match_operand:SI 1 "reg_or_0_operand" "rM")]
UNSPECV_STORE_EXCLUSIVE))]
"TARGET_ARCH_R2"
"<store_exclusive>\\t%2, %z1, %A0"
[(set_attr "type" "st")])

9
gcc/doc/extend.texi
View file

@ -11045,7 +11045,16 @@ void __builtin_sthio (volatile void *, int)
void __builtin_stwio (volatile void *, int)
void __builtin_sync (void)
int __builtin_rdctl (int)
int __builtin_rdprs (int, int)
void __builtin_wrctl (int, int)
void __builtin_flushd (volatile void *)
void __builtin_flushda (volatile void *)
int __builtin_wrpie (int);
void __builtin_eni (int);
int __builtin_ldex (volatile const void *)
int __builtin_stex (volatile void *, int)
int __builtin_ldsex (volatile const void *)
int __builtin_stsex (volatile void *, int)
@end example
The following built-in functions are always available. They

8
gcc/doc/md.texi
View file

@ -2999,6 +2999,14 @@ Matches immediates which are addresses in the small
data section and therefore can be added to @code{gp}
as a 16-bit immediate to re-create their 32-bit value.
@item U
Matches constants suitable as an operand for the rdprs and
cache instructions.
@item v
A memory operand suitable for Nios II R2 load/store
exclusive instructions.
@item w
A memory operand suitable for load/store IO and cache
instructions.

10
gcc/testsuite/ChangeLog
View file

@ -1,3 +1,13 @@
2015-07-14 Sandra Loosemore <sandra@codesourcery.com>
Cesar Philippidis <cesar@codesourcery.com>
Chung-Lin Tang <cltang@codesourcery.com>
* gcc.target/nios2/nios2-flushd.c: New.
* gcc.target/nios2/nios2-rdprs.c: New.
* gcc.target/nios2/r2-atomic.c: New.
* gcc.target/nios2/r2-eni.c: New.
* gcc.target/nios2/r2-wrpie.c: New.
2015-07-14 Sandra Loosemore <sandra@codesourcery.com>
Cesar Philippidis <cesar@codesourcery.com>
Chung-Lin Tang <cltang@codesourcery.com>

22
gcc/testsuite/gcc.target/nios2/nios2-flushd.c Normal file
View file

@ -0,0 +1,22 @@
/* { dg-do assemble } */
/* { dg-options "-O" } */
void test_flushd (unsigned char* p1, unsigned char* p2)
{
__builtin_flushd (p1);
__builtin_flushd (p2);
__builtin_flushd (p2 + 1);
__builtin_flushd (p2 + 2);
__builtin_flushd (p2 + 2047);
__builtin_flushd (p2 + 2048);
}
void test_flushda (unsigned char* p1, unsigned char* p2)
{
__builtin_flushda (p1);
__builtin_flushda (p2);
__builtin_flushda (p2 + 1);
__builtin_flushda (p2 + 2);
__builtin_flushda (p2 + 2047);
__builtin_flushda (p2 + 2048);
}

8
gcc/testsuite/gcc.target/nios2/nios2-rdprs.c Normal file
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/* { dg-do compile } */
/* { dg-final { scan-assembler "rdprs" } } */
int x ()
{
__builtin_rdprs (3,934);
return 0;
}

49
gcc/testsuite/gcc.target/nios2/r2-atomic.c Normal file
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/* { dg-do assemble } */
/* { dg-options "-O -march=r2" } */
int test_stex (unsigned char* p1, unsigned char* p2)
{
int a, b, c, d;
a = __builtin_stex (p1, *p2);
b = __builtin_stex (p2, 0);
c = __builtin_stex (p2 + 1, 0x80);
d = __builtin_stex (p2 + 2, 0x7f);
return a + b + c + d;
}
int test_stsex (unsigned short* p1, unsigned short* p2)
{
int a, b, c, d;
a = __builtin_stsex (p1, *p2);
b = __builtin_stsex (p2, 0);
c = __builtin_stsex (p2 + 1, 0x8000);
d = __builtin_stsex (p2 + 2, 0x7fff);
return a + b + c + d;
}
int test_ldex (unsigned char* p1, unsigned char* p2)
{
int a, b, c, d;
a = __builtin_ldex (p1);
b = __builtin_ldex (p2);
c = __builtin_ldex (p2 + 1);
d = __builtin_ldex (p2 + 2);
return a + b + c + d;
}
int test_ldsex (unsigned char* p1, unsigned char* p2)
{
int a, b, c, d;
a = __builtin_ldsex (p1);
b = __builtin_ldsex (p2);
c = __builtin_ldsex (p2 + 1);
d = __builtin_ldsex (p2 + 2);
return a + b + c + d;
}

10
gcc/testsuite/gcc.target/nios2/r2-eni.c Normal file
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/* { dg-do compile } */
/* { dg-options "-O2 -march=r2" } */
/* { dg-final { scan-assembler "eni" } } */
void
foo (void)
{
__builtin_eni (0);
__builtin_eni (1);
}

14
gcc/testsuite/gcc.target/nios2/r2-wrpie.c Normal file
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/* { dg-do compile } */
/* { dg-options "-O2 -march=r2" } */
/* { dg-final { scan-assembler "wrpie" } } */
int
foo (int a)
{
int b;
b = __builtin_wrpie (a);
a = __builtin_wrpie (b);
return a + b;
}