2014-07-16 Yvan Roux <yvan.roux@linaro.org>
+ Backport from trunk r210828, r211103.
+ 2014-05-31 Kugan Vivekanandarajah <kuganv@linaro.org>
+
+ * config/arm/arm.c (TARGET_ATOMIC_ASSIGN_EXPAND_FENV): New define.
+ (arm_builtins) : Add ARM_BUILTIN_GET_FPSCR and ARM_BUILTIN_SET_FPSCR.
+ (bdesc_2arg) : Add description for builtins __builtins_arm_set_fpscr
+ and __builtins_arm_get_fpscr.
+ (arm_init_builtins) : Initialize builtins __builtins_arm_set_fpscr and
+ __builtins_arm_get_fpscr.
+ (arm_expand_builtin) : Expand builtins __builtins_arm_set_fpscr and
+ __builtins_arm_ldfpscr.
+ (arm_atomic_assign_expand_fenv): New function.
+ * config/arm/vfp.md (set_fpscr): New pattern.
+ (get_fpscr) : Likewise.
+ * config/arm/unspecs.md (unspecv): Add VUNSPEC_GET_FPSCR and
+ VUNSPEC_SET_FPSCR.
+ * doc/extend.texi (AARCH64 Built-in Functions) : Document
+ __builtins_arm_set_fpscr, __builtins_arm_get_fpscr.
+
+ 2014-05-23 Kugan Vivekanandarajah <kuganv@linaro.org>
+
+ * config/aarch64/aarch64.c (TARGET_ATOMIC_ASSIGN_EXPAND_FENV): New
+ define.
+ * config/aarch64/aarch64-protos.h (aarch64_atomic_assign_expand_fenv):
+ New function declaration.
+ * config/aarch64/aarch64-builtins.c (aarch64_builtins) : Add
+ AARCH64_BUILTIN_GET_FPCR, AARCH64_BUILTIN_SET_FPCR.
+ AARCH64_BUILTIN_GET_FPSR and AARCH64_BUILTIN_SET_FPSR.
+ (aarch64_init_builtins) : Initialize builtins
+ __builtins_aarch64_set_fpcr, __builtins_aarch64_get_fpcr.
+ __builtins_aarch64_set_fpsr and __builtins_aarch64_get_fpsr.
+ (aarch64_expand_builtin) : Expand builtins __builtins_aarch64_set_fpcr
+ __builtins_aarch64_get_fpcr, __builtins_aarch64_get_fpsr,
+ and __builtins_aarch64_set_fpsr.
+ (aarch64_atomic_assign_expand_fenv): New function.
+ * config/aarch64/aarch64.md (set_fpcr): New pattern.
+ (get_fpcr) : Likewise.
+ (set_fpsr) : Likewise.
+ (get_fpsr) : Likewise.
+ (unspecv): Add UNSPECV_GET_FPCR and UNSPECV_SET_FPCR, UNSPECV_GET_FPSR
+ and UNSPECV_SET_FPSR.
+ * doc/extend.texi (AARCH64 Built-in Functions) : Document
+ __builtins_aarch64_set_fpcr, __builtins_aarch64_get_fpcr.
+ __builtins_aarch64_set_fpsr and __builtins_aarch64_get_fpsr.
+
+2014-07-16 Yvan Roux <yvan.roux@linaro.org>
+
Backport from trunk r210355.
2014-05-13 Ian Bolton <ian.bolton@arm.com>
enum aarch64_builtins
{
AARCH64_BUILTIN_MIN,
+
+ AARCH64_BUILTIN_GET_FPCR,
+ AARCH64_BUILTIN_SET_FPCR,
+ AARCH64_BUILTIN_GET_FPSR,
+ AARCH64_BUILTIN_SET_FPSR,
+
AARCH64_SIMD_BUILTIN_BASE,
#include "aarch64-simd-builtins.def"
AARCH64_SIMD_BUILTIN_MAX = AARCH64_SIMD_BUILTIN_BASE
void
aarch64_init_builtins (void)
{
+ tree ftype_set_fpr
+ = build_function_type_list (void_type_node, unsigned_type_node, NULL);
+ tree ftype_get_fpr
+ = build_function_type_list (unsigned_type_node, NULL);
+
+ aarch64_builtin_decls[AARCH64_BUILTIN_GET_FPCR]
+ = add_builtin_function ("__builtin_aarch64_get_fpcr", ftype_get_fpr,
+ AARCH64_BUILTIN_GET_FPCR, BUILT_IN_MD, NULL, NULL_TREE);
+ aarch64_builtin_decls[AARCH64_BUILTIN_SET_FPCR]
+ = add_builtin_function ("__builtin_aarch64_set_fpcr", ftype_set_fpr,
+ AARCH64_BUILTIN_SET_FPCR, BUILT_IN_MD, NULL, NULL_TREE);
+ aarch64_builtin_decls[AARCH64_BUILTIN_GET_FPSR]
+ = add_builtin_function ("__builtin_aarch64_get_fpsr", ftype_get_fpr,
+ AARCH64_BUILTIN_GET_FPSR, BUILT_IN_MD, NULL, NULL_TREE);
+ aarch64_builtin_decls[AARCH64_BUILTIN_SET_FPSR]
+ = add_builtin_function ("__builtin_aarch64_set_fpsr", ftype_set_fpr,
+ AARCH64_BUILTIN_SET_FPSR, BUILT_IN_MD, NULL, NULL_TREE);
+
if (TARGET_SIMD)
aarch64_init_simd_builtins ();
}
{
tree fndecl = TREE_OPERAND (CALL_EXPR_FN (exp), 0);
int fcode = DECL_FUNCTION_CODE (fndecl);
+ int icode;
+ rtx pat, op0;
+ tree arg0;
+
+ switch (fcode)
+ {
+ case AARCH64_BUILTIN_GET_FPCR:
+ case AARCH64_BUILTIN_SET_FPCR:
+ case AARCH64_BUILTIN_GET_FPSR:
+ case AARCH64_BUILTIN_SET_FPSR:
+ if ((fcode == AARCH64_BUILTIN_GET_FPCR)
+ || (fcode == AARCH64_BUILTIN_GET_FPSR))
+ {
+ icode = (fcode == AARCH64_BUILTIN_GET_FPSR) ?
+ CODE_FOR_get_fpsr : CODE_FOR_get_fpcr;
+ target = gen_reg_rtx (SImode);
+ pat = GEN_FCN (icode) (target);
+ }
+ else
+ {
+ target = NULL_RTX;
+ icode = (fcode == AARCH64_BUILTIN_SET_FPSR) ?
+ CODE_FOR_set_fpsr : CODE_FOR_set_fpcr;
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ op0 = expand_normal (arg0);
+ pat = GEN_FCN (icode) (op0);
+ }
+ emit_insn (pat);
+ return target;
+ }
if (fcode >= AARCH64_SIMD_BUILTIN_BASE)
return aarch64_simd_expand_builtin (fcode, exp, target);
return changed;
}
+void
+aarch64_atomic_assign_expand_fenv (tree *hold, tree *clear, tree *update)
+{
+ const unsigned AARCH64_FE_INVALID = 1;
+ const unsigned AARCH64_FE_DIVBYZERO = 2;
+ const unsigned AARCH64_FE_OVERFLOW = 4;
+ const unsigned AARCH64_FE_UNDERFLOW = 8;
+ const unsigned AARCH64_FE_INEXACT = 16;
+ const unsigned HOST_WIDE_INT AARCH64_FE_ALL_EXCEPT = (AARCH64_FE_INVALID
+ | AARCH64_FE_DIVBYZERO
+ | AARCH64_FE_OVERFLOW
+ | AARCH64_FE_UNDERFLOW
+ | AARCH64_FE_INEXACT);
+ const unsigned HOST_WIDE_INT AARCH64_FE_EXCEPT_SHIFT = 8;
+ tree fenv_cr, fenv_sr, get_fpcr, set_fpcr, mask_cr, mask_sr;
+ tree ld_fenv_cr, ld_fenv_sr, masked_fenv_cr, masked_fenv_sr, hold_fnclex_cr;
+ tree hold_fnclex_sr, new_fenv_var, reload_fenv, restore_fnenv, get_fpsr, set_fpsr;
+ tree update_call, atomic_feraiseexcept, hold_fnclex, masked_fenv, ld_fenv;
+
+ /* Generate the equivalence of :
+ unsigned int fenv_cr;
+ fenv_cr = __builtin_aarch64_get_fpcr ();
+
+ unsigned int fenv_sr;
+ fenv_sr = __builtin_aarch64_get_fpsr ();
+
+ Now set all exceptions to non-stop
+ unsigned int mask_cr
+ = ~(AARCH64_FE_ALL_EXCEPT << AARCH64_FE_EXCEPT_SHIFT);
+ unsigned int masked_cr;
+ masked_cr = fenv_cr & mask_cr;
+
+ And clear all exception flags
+ unsigned int maske_sr = ~AARCH64_FE_ALL_EXCEPT;
+ unsigned int masked_cr;
+ masked_sr = fenv_sr & mask_sr;
+
+ __builtin_aarch64_set_cr (masked_cr);
+ __builtin_aarch64_set_sr (masked_sr); */
+
+ fenv_cr = create_tmp_var (unsigned_type_node, NULL);
+ fenv_sr = create_tmp_var (unsigned_type_node, NULL);
+
+ get_fpcr = aarch64_builtin_decls[AARCH64_BUILTIN_GET_FPCR];
+ set_fpcr = aarch64_builtin_decls[AARCH64_BUILTIN_SET_FPCR];
+ get_fpsr = aarch64_builtin_decls[AARCH64_BUILTIN_GET_FPSR];
+ set_fpsr = aarch64_builtin_decls[AARCH64_BUILTIN_SET_FPSR];
+
+ mask_cr = build_int_cst (unsigned_type_node,
+ ~(AARCH64_FE_ALL_EXCEPT << AARCH64_FE_EXCEPT_SHIFT));
+ mask_sr = build_int_cst (unsigned_type_node,
+ ~(AARCH64_FE_ALL_EXCEPT));
+
+ ld_fenv_cr = build2 (MODIFY_EXPR, unsigned_type_node,
+ fenv_cr, build_call_expr (get_fpcr, 0));
+ ld_fenv_sr = build2 (MODIFY_EXPR, unsigned_type_node,
+ fenv_sr, build_call_expr (get_fpsr, 0));
+
+ masked_fenv_cr = build2 (BIT_AND_EXPR, unsigned_type_node, fenv_cr, mask_cr);
+ masked_fenv_sr = build2 (BIT_AND_EXPR, unsigned_type_node, fenv_sr, mask_sr);
+
+ hold_fnclex_cr = build_call_expr (set_fpcr, 1, masked_fenv_cr);
+ hold_fnclex_sr = build_call_expr (set_fpsr, 1, masked_fenv_sr);
+
+ hold_fnclex = build2 (COMPOUND_EXPR, void_type_node, hold_fnclex_cr,
+ hold_fnclex_sr);
+ masked_fenv = build2 (COMPOUND_EXPR, void_type_node, masked_fenv_cr,
+ masked_fenv_sr);
+ ld_fenv = build2 (COMPOUND_EXPR, void_type_node, ld_fenv_cr, ld_fenv_sr);
+
+ *hold = build2 (COMPOUND_EXPR, void_type_node,
+ build2 (COMPOUND_EXPR, void_type_node, masked_fenv, ld_fenv),
+ hold_fnclex);
+
+ /* Store the value of masked_fenv to clear the exceptions:
+ __builtin_aarch64_set_fpsr (masked_fenv_sr); */
+
+ *clear = build_call_expr (set_fpsr, 1, masked_fenv_sr);
+
+ /* Generate the equivalent of :
+ unsigned int new_fenv_var;
+ new_fenv_var = __builtin_aarch64_get_fpsr ();
+
+ __builtin_aarch64_set_fpsr (fenv_sr);
+
+ __atomic_feraiseexcept (new_fenv_var); */
+
+ new_fenv_var = create_tmp_var (unsigned_type_node, NULL);
+ reload_fenv = build2 (MODIFY_EXPR, unsigned_type_node,
+ new_fenv_var, build_call_expr (get_fpsr, 0));
+ restore_fnenv = build_call_expr (set_fpsr, 1, fenv_sr);
+ atomic_feraiseexcept = builtin_decl_implicit (BUILT_IN_ATOMIC_FERAISEEXCEPT);
+ update_call = build_call_expr (atomic_feraiseexcept, 1,
+ fold_convert (integer_type_node, new_fenv_var));
+ *update = build2 (COMPOUND_EXPR, void_type_node,
+ build2 (COMPOUND_EXPR, void_type_node,
+ reload_fenv, restore_fnenv), update_call);
+}
+
+
#undef AARCH64_CHECK_BUILTIN_MODE
#undef AARCH64_FIND_FRINT_VARIANT
#undef BUILTIN_DX
extern void aarch64_expand_vec_perm (rtx target, rtx op0, rtx op1, rtx sel);
extern bool
aarch64_expand_vec_perm_const (rtx target, rtx op0, rtx op1, rtx sel);
+void aarch64_atomic_assign_expand_fenv (tree *, tree *, tree *);
#endif /* GCC_AARCH64_PROTOS_H */
#define TARGET_VECTORIZE_AUTOVECTORIZE_VECTOR_SIZES \
aarch64_autovectorize_vector_sizes
+#undef TARGET_ATOMIC_ASSIGN_EXPAND_FENV
+#define TARGET_ATOMIC_ASSIGN_EXPAND_FENV \
+ aarch64_atomic_assign_expand_fenv
+
/* Section anchor support. */
#undef TARGET_MIN_ANCHOR_OFFSET
(define_c_enum "unspecv" [
UNSPECV_EH_RETURN ; Represent EH_RETURN
+ UNSPECV_GET_FPCR ; Represent fetch of FPCR content.
+ UNSPECV_SET_FPCR ; Represent assign of FPCR content.
+ UNSPECV_GET_FPSR ; Represent fetch of FPSR content.
+ UNSPECV_SET_FPSR ; Represent assign of FPSR content.
]
)
[(set_attr "length" "12")
(set_attr "type" "multiple")])
+;; Write Floating-point Control Register.
+(define_insn "set_fpcr"
+ [(unspec_volatile [(match_operand:SI 0 "register_operand" "r")] UNSPECV_SET_FPCR)]
+ ""
+ "msr\\tfpcr, %0\;isb"
+ [(set_attr "type" "mrs")])
+
+;; Read Floating-point Control Register.
+(define_insn "get_fpcr"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (unspec_volatile:SI [(const_int 0)] UNSPECV_GET_FPCR))]
+ ""
+ "mrs\\t%0, fpcr"
+ [(set_attr "type" "mrs")])
+
+;; Write Floating-point Status Register.
+(define_insn "set_fpsr"
+ [(unspec_volatile [(match_operand:SI 0 "register_operand" "r")] UNSPECV_SET_FPSR)]
+ ""
+ "msr\\tfpsr, %0"
+ [(set_attr "type" "mrs")])
+
+;; Read Floating-point Status Register.
+(define_insn "get_fpsr"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (unspec_volatile:SI [(const_int 0)] UNSPECV_GET_FPSR))]
+ ""
+ "mrs\\t%0, fpsr"
+ [(set_attr "type" "mrs")])
+
+
;; AdvSIMD Stuff
(include "aarch64-simd.md")
#include "params.h"
#include "opts.h"
#include "dumpfile.h"
+#include "gimple-expr.h"
/* Forward definitions of types. */
typedef struct minipool_node Mnode;
static bool thumb_force_lr_save (void);
static unsigned arm_size_return_regs (void);
static bool arm_assemble_integer (rtx, unsigned int, int);
+static void arm_atomic_assign_expand_fenv (tree *hold, tree *clear, tree *update);
static void arm_print_operand (FILE *, rtx, int);
static void arm_print_operand_address (FILE *, rtx);
static bool arm_print_operand_punct_valid_p (unsigned char code);
#undef TARGET_MANGLE_TYPE
#define TARGET_MANGLE_TYPE arm_mangle_type
+#undef TARGET_ATOMIC_ASSIGN_EXPAND_FENV
+#define TARGET_ATOMIC_ASSIGN_EXPAND_FENV arm_atomic_assign_expand_fenv
+
#undef TARGET_BUILD_BUILTIN_VA_LIST
#define TARGET_BUILD_BUILTIN_VA_LIST arm_build_builtin_va_list
#undef TARGET_EXPAND_BUILTIN_VA_START
ARM_BUILTIN_CRC32CH,
ARM_BUILTIN_CRC32CW,
+ ARM_BUILTIN_GET_FPSCR,
+ ARM_BUILTIN_SET_FPSCR,
+
#undef CRYPTO1
#undef CRYPTO2
#undef CRYPTO3
IWMMXT_BUILTIN2 (iwmmxt_wmacuz, WMACUZ)
IWMMXT_BUILTIN2 (iwmmxt_wmacsz, WMACSZ)
+
+#define FP_BUILTIN(L, U) \
+ {0, CODE_FOR_##L, "__builtin_arm_"#L, ARM_BUILTIN_##U, \
+ UNKNOWN, 0},
+
+ FP_BUILTIN (set_fpscr, GET_FPSCR)
+ FP_BUILTIN (get_fpscr, SET_FPSCR)
+#undef FP_BUILTIN
+
#define CRC32_BUILTIN(L, U) \
{0, CODE_FOR_##L, "__builtin_arm_"#L, ARM_BUILTIN_##U, \
UNKNOWN, 0},
if (TARGET_CRC32)
arm_init_crc32_builtins ();
+
+ if (TARGET_VFP)
+ {
+ tree ftype_set_fpscr
+ = build_function_type_list (void_type_node, unsigned_type_node, NULL);
+ tree ftype_get_fpscr
+ = build_function_type_list (unsigned_type_node, NULL);
+
+ arm_builtin_decls[ARM_BUILTIN_GET_FPSCR]
+ = add_builtin_function ("__builtin_arm_ldfscr", ftype_get_fpscr,
+ ARM_BUILTIN_GET_FPSCR, BUILT_IN_MD, NULL, NULL_TREE);
+ arm_builtin_decls[ARM_BUILTIN_SET_FPSCR]
+ = add_builtin_function ("__builtin_arm_stfscr", ftype_set_fpscr,
+ ARM_BUILTIN_SET_FPSCR, BUILT_IN_MD, NULL, NULL_TREE);
+ }
}
/* Return the ARM builtin for CODE. */
switch (fcode)
{
+ case ARM_BUILTIN_GET_FPSCR:
+ case ARM_BUILTIN_SET_FPSCR:
+ if (fcode == ARM_BUILTIN_GET_FPSCR)
+ {
+ icode = CODE_FOR_get_fpscr;
+ target = gen_reg_rtx (SImode);
+ pat = GEN_FCN (icode) (target);
+ }
+ else
+ {
+ target = NULL_RTX;
+ icode = CODE_FOR_set_fpscr;
+ arg0 = CALL_EXPR_ARG (exp, 0);
+ op0 = expand_normal (arg0);
+ pat = GEN_FCN (icode) (op0);
+ }
+ emit_insn (pat);
+ return target;
+
case ARM_BUILTIN_TEXTRMSB:
case ARM_BUILTIN_TEXTRMUB:
case ARM_BUILTIN_TEXTRMSH:
return false;
}
+static void
+arm_atomic_assign_expand_fenv (tree *hold, tree *clear, tree *update)
+{
+ const unsigned ARM_FE_INVALID = 1;
+ const unsigned ARM_FE_DIVBYZERO = 2;
+ const unsigned ARM_FE_OVERFLOW = 4;
+ const unsigned ARM_FE_UNDERFLOW = 8;
+ const unsigned ARM_FE_INEXACT = 16;
+ const unsigned HOST_WIDE_INT ARM_FE_ALL_EXCEPT = (ARM_FE_INVALID
+ | ARM_FE_DIVBYZERO
+ | ARM_FE_OVERFLOW
+ | ARM_FE_UNDERFLOW
+ | ARM_FE_INEXACT);
+ const unsigned HOST_WIDE_INT ARM_FE_EXCEPT_SHIFT = 8;
+ tree fenv_var, get_fpscr, set_fpscr, mask, ld_fenv, masked_fenv;
+ tree new_fenv_var, reload_fenv, restore_fnenv;
+ tree update_call, atomic_feraiseexcept, hold_fnclex;
+
+ if (!TARGET_VFP)
+ return;
+
+ /* Generate the equivalent of :
+ unsigned int fenv_var;
+ fenv_var = __builtin_arm_get_fpscr ();
+
+ unsigned int masked_fenv;
+ masked_fenv = fenv_var & mask;
+
+ __builtin_arm_set_fpscr (masked_fenv); */
+
+ fenv_var = create_tmp_var (unsigned_type_node, NULL);
+ get_fpscr = arm_builtin_decls[ARM_BUILTIN_GET_FPSCR];
+ set_fpscr = arm_builtin_decls[ARM_BUILTIN_SET_FPSCR];
+ mask = build_int_cst (unsigned_type_node,
+ ~((ARM_FE_ALL_EXCEPT << ARM_FE_EXCEPT_SHIFT)
+ | ARM_FE_ALL_EXCEPT));
+ ld_fenv = build2 (MODIFY_EXPR, unsigned_type_node,
+ fenv_var, build_call_expr (get_fpscr, 0));
+ masked_fenv = build2 (BIT_AND_EXPR, unsigned_type_node, fenv_var, mask);
+ hold_fnclex = build_call_expr (set_fpscr, 1, masked_fenv);
+ *hold = build2 (COMPOUND_EXPR, void_type_node,
+ build2 (COMPOUND_EXPR, void_type_node, masked_fenv, ld_fenv),
+ hold_fnclex);
+
+ /* Store the value of masked_fenv to clear the exceptions:
+ __builtin_arm_set_fpscr (masked_fenv); */
+
+ *clear = build_call_expr (set_fpscr, 1, masked_fenv);
+
+ /* Generate the equivalent of :
+ unsigned int new_fenv_var;
+ new_fenv_var = __builtin_arm_get_fpscr ();
+
+ __builtin_arm_set_fpscr (fenv_var);
+
+ __atomic_feraiseexcept (new_fenv_var); */
+
+ new_fenv_var = create_tmp_var (unsigned_type_node, NULL);
+ reload_fenv = build2 (MODIFY_EXPR, unsigned_type_node, new_fenv_var,
+ build_call_expr (get_fpscr, 0));
+ restore_fnenv = build_call_expr (set_fpscr, 1, fenv_var);
+ atomic_feraiseexcept = builtin_decl_implicit (BUILT_IN_ATOMIC_FERAISEEXCEPT);
+ update_call = build_call_expr (atomic_feraiseexcept, 1,
+ fold_convert (integer_type_node, new_fenv_var));
+ *update = build2 (COMPOUND_EXPR, void_type_node,
+ build2 (COMPOUND_EXPR, void_type_node,
+ reload_fenv, restore_fnenv), update_call);
+}
+
#include "gt-arm.h"
VUNSPEC_SLX ; Represent a store-register-release-exclusive.
VUNSPEC_LDA ; Represent a store-register-acquire.
VUNSPEC_STL ; Represent a store-register-release.
+ VUNSPEC_GET_FPSCR ; Represent fetch of FPSCR content.
+ VUNSPEC_SET_FPSCR ; Represent assign of FPSCR content.
])
;; Enumerators for NEON unspecs.
(set_attr "conds" "unconditional")]
)
+;; Write Floating-point Status and Control Register.
+(define_insn "set_fpscr"
+ [(unspec_volatile [(match_operand:SI 0 "register_operand" "r")] VUNSPEC_SET_FPSCR)]
+ "TARGET_VFP"
+ "mcr\\tp10, 7, %0, cr1, cr0, 0\\t @SET_FPSCR"
+ [(set_attr "type" "mrs")])
+
+;; Read Floating-point Status and Control Register.
+(define_insn "get_fpscr"
+ [(set (match_operand:SI 0 "register_operand" "=r")
+ (unspec_volatile:SI [(const_int 0)] VUNSPEC_GET_FPSCR))]
+ "TARGET_VFP"
+ "mrc\\tp10, 7, %0, cr1, cr0, 0\\t @GET_FPSCR"
+ [(set_attr "type" "mrs")])
+
+
;; Unimplemented insns:
;; fldm*
;; fstm*
instructions, but allow the compiler to schedule those calls.
@menu
+* AArch64 Built-in Functions::
* Alpha Built-in Functions::
* Altera Nios II Built-in Functions::
* ARC Built-in Functions::
* ARM iWMMXt Built-in Functions::
* ARM NEON Intrinsics::
* ARM ACLE Intrinsics::
+* ARM Floating Point Status and Control Intrinsics::
* AVR Built-in Functions::
* Blackfin Built-in Functions::
* FR-V Built-in Functions::
* TILEPro Built-in Functions::
@end menu
+@node AArch64 Built-in Functions
+@subsection AArch64 Built-in Functions
+
+These built-in functions are available for the AArch64 family of
+processors.
+@smallexample
+unsigned int __builtin_aarch64_get_fpcr ()
+void __builtin_aarch64_set_fpcr (unsigned int)
+unsigned int __builtin_aarch64_get_fpsr ()
+void __builtin_aarch64_set_fpsr (unsigned int)
+@end smallexample
+
@node Alpha Built-in Functions
@subsection Alpha Built-in Functions
@include arm-acle-intrinsics.texi
+@node ARM Floating Point Status and Control Intrinsics
+@subsection ARM Floating Point Status and Control Intrinsics
+
+These built-in functions are available for the ARM family of
+processors with floating-point unit.
+
+@smallexample
+unsigned int __builtin_arm_get_fpscr ()
+void __builtin_arm_set_fpscr (unsigned int)
+@end smallexample
+
@node AVR Built-in Functions
@subsection AVR Built-in Functions
projects / platform / upstream / gcc49.git / commitdiff