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 2, or (at your option) any later
+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
for more details.
You should have received a copy of the GNU General Public License
-along with GCC; see the file COPYING. If not, write to the Free
-Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
-02110-1301, USA. */
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#include "config.h"
#include "system.h"
else if (offset)
inner = MIN (inner, BITS_PER_UNIT);
}
- if (TREE_CODE (exp) == FUNCTION_DECL)
- align = FUNCTION_BOUNDARY;
- else if (DECL_P (exp))
+ if (DECL_P (exp))
align = MIN (inner, DECL_ALIGN (exp));
#ifdef CONSTANT_ALIGNMENT
else if (CONSTANT_CLASS_P (exp))
static rtx
expand_builtin_interclass_mathfn (tree exp, rtx target, rtx subtarget)
{
- optab builtin_optab;
- enum insn_code icode;
+ optab builtin_optab = 0;
+ enum insn_code icode = CODE_FOR_nothing;
rtx op0;
tree fndecl = get_callee_fndecl (exp);
enum machine_mode mode;
errno_set = true; builtin_optab = ilogb_optab; break;
CASE_FLT_FN (BUILT_IN_ISINF):
builtin_optab = isinf_optab; break;
+ case BUILT_IN_ISNORMAL:
+ case BUILT_IN_ISFINITE:
+ CASE_FLT_FN (BUILT_IN_FINITE):
+ /* These builtins have no optabs (yet). */
+ break;
default:
gcc_unreachable ();
}
/* Optab mode depends on the mode of the input argument. */
mode = TYPE_MODE (TREE_TYPE (arg));
- icode = builtin_optab->handlers[(int) mode].insn_code;
+ if (builtin_optab)
+ icode = builtin_optab->handlers[(int) mode].insn_code;
/* Before working hard, check whether the instruction is available. */
if (icode != CODE_FOR_nothing)
return target;
}
+ /* If there is no optab, try generic code. */
+ switch (DECL_FUNCTION_CODE (fndecl))
+ {
+ tree result;
+
+ CASE_FLT_FN (BUILT_IN_ISINF):
+ {
+ /* isinf(x) -> isgreater(fabs(x),DBL_MAX). */
+ tree const isgr_fn = built_in_decls[BUILT_IN_ISGREATER];
+ tree const type = TREE_TYPE (arg);
+ REAL_VALUE_TYPE r;
+ char buf[128];
+
+ get_max_float (REAL_MODE_FORMAT (mode), buf, sizeof (buf));
+ real_from_string (&r, buf);
+ result = build_call_expr (isgr_fn, 2,
+ fold_build1 (ABS_EXPR, type, arg),
+ build_real (type, r));
+ return expand_expr (result, target, VOIDmode, EXPAND_NORMAL);
+ }
+ CASE_FLT_FN (BUILT_IN_FINITE):
+ case BUILT_IN_ISFINITE:
+ {
+ /* isfinite(x) -> islessequal(fabs(x),DBL_MAX). */
+ tree const isle_fn = built_in_decls[BUILT_IN_ISLESSEQUAL];
+ tree const type = TREE_TYPE (arg);
+ REAL_VALUE_TYPE r;
+ char buf[128];
+
+ get_max_float (REAL_MODE_FORMAT (mode), buf, sizeof (buf));
+ real_from_string (&r, buf);
+ result = build_call_expr (isle_fn, 2,
+ fold_build1 (ABS_EXPR, type, arg),
+ build_real (type, r));
+ return expand_expr (result, target, VOIDmode, EXPAND_NORMAL);
+ }
+ case BUILT_IN_ISNORMAL:
+ {
+ /* isnormal(x) -> isgreaterequal(fabs(x),DBL_MIN) &
+ islessequal(fabs(x),DBL_MAX). */
+ tree const isle_fn = built_in_decls[BUILT_IN_ISLESSEQUAL];
+ tree const isge_fn = built_in_decls[BUILT_IN_ISGREATEREQUAL];
+ tree const type = TREE_TYPE (arg);
+ REAL_VALUE_TYPE rmax, rmin;
+ char buf[128];
+
+ get_max_float (REAL_MODE_FORMAT (mode), buf, sizeof (buf));
+ real_from_string (&rmax, buf);
+ sprintf (buf, "0x1p%d", REAL_MODE_FORMAT (mode)->emin - 1);
+ real_from_string (&rmin, buf);
+ arg = builtin_save_expr (fold_build1 (ABS_EXPR, type, arg));
+ result = build_call_expr (isle_fn, 2, arg,
+ build_real (type, rmax));
+ result = fold_build2 (BIT_AND_EXPR, integer_type_node, result,
+ build_call_expr (isge_fn, 2, arg,
+ build_real (type, rmin)));
+ return expand_expr (result, target, VOIDmode, EXPAND_NORMAL);
+ }
+ default:
+ break;
+ }
+
target = expand_call (exp, target, target == const0_rtx);
return target;
void
std_expand_builtin_va_start (tree valist, rtx nextarg)
{
- tree t;
- t = make_tree (sizetype, nextarg);
- t = fold_convert (ptr_type_node, t);
-
- t = build2 (MODIFY_EXPR, TREE_TYPE (valist), valist, t);
- TREE_SIDE_EFFECTS (t) = 1;
-
- expand_expr (t, const0_rtx, VOIDmode, EXPAND_NORMAL);
+ rtx va_r = expand_expr (valist, NULL_RTX, VOIDmode, EXPAND_WRITE);
+ convert_move (va_r, nextarg, 0);
}
/* Expand EXP, a call to __builtin_va_start. */
return const0_rtx;
}
+/* Expand a call to __builtin___clear_cache. */
+
+static rtx
+expand_builtin___clear_cache (tree exp ATTRIBUTE_UNUSED)
+{
+#ifndef HAVE_clear_cache
+#ifdef CLEAR_INSN_CACHE
+ /* There is no "clear_cache" insn, and __clear_cache() in libgcc
+ does something. Just do the default expansion to a call to
+ __clear_cache(). */
+ return NULL_RTX;
+#else
+ /* There is no "clear_cache" insn, and __clear_cache() in libgcc
+ does nothing. There is no need to call it. Do nothing. */
+ return const0_rtx;
+#endif /* CLEAR_INSN_CACHE */
+#else
+ /* We have a "clear_cache" insn, and it will handle everything. */
+ tree begin, end;
+ rtx begin_rtx, end_rtx;
+ enum insn_code icode;
+
+ /* We must not expand to a library call. If we did, any
+ fallback library function in libgcc that might contain a call to
+ __builtin___clear_cache() would recurse infinitely. */
+ if (!validate_arglist (exp, POINTER_TYPE, POINTER_TYPE, VOID_TYPE))
+ {
+ error ("both arguments to %<__builtin___clear_cache%> must be pointers");
+ return const0_rtx;
+ }
+
+ if (HAVE_clear_cache)
+ {
+ icode = CODE_FOR_clear_cache;
+
+ begin = CALL_EXPR_ARG (exp, 0);
+ begin_rtx = expand_expr (begin, NULL_RTX, Pmode, EXPAND_NORMAL);
+ begin_rtx = convert_memory_address (Pmode, begin_rtx);
+ if (!insn_data[icode].operand[0].predicate (begin_rtx, Pmode))
+ begin_rtx = copy_to_mode_reg (Pmode, begin_rtx);
+
+ end = CALL_EXPR_ARG (exp, 1);
+ end_rtx = expand_expr (end, NULL_RTX, Pmode, EXPAND_NORMAL);
+ end_rtx = convert_memory_address (Pmode, end_rtx);
+ if (!insn_data[icode].operand[1].predicate (end_rtx, Pmode))
+ end_rtx = copy_to_mode_reg (Pmode, end_rtx);
+
+ emit_insn (gen_clear_cache (begin_rtx, end_rtx));
+ }
+ return const0_rtx;
+#endif /* HAVE_clear_cache */
+}
+
/* Given a trampoline address, make sure it satisfies TRAMPOLINE_ALIGNMENT. */
static rtx
return tramp;
}
-/* Expand a call to the built-in signbit, signbitf, signbitl, signbitd32,
- signbitd64, or signbitd128 function.
- Return NULL_RTX if a normal call should be emitted rather than expanding
- the function in-line. EXP is the expression that is a call to the builtin
- function; if convenient, the result should be placed in TARGET. */
-
+/* Expand the call EXP to the built-in signbit, signbitf or signbitl
+ function. The function first checks whether the back end provides
+ an insn to implement signbit for the respective mode. If not, it
+ checks whether the floating point format of the value is such that
+ the sign bit can be extracted. If that is not the case, the
+ function returns NULL_RTX to indicate that a normal call should be
+ emitted rather than expanding the function in-line. EXP is the
+ expression that is a call to the builtin function; if convenient,
+ the result should be placed in TARGET. */
static rtx
expand_builtin_signbit (tree exp, rtx target)
{
HOST_WIDE_INT hi, lo;
tree arg;
int word, bitpos;
+ enum insn_code icode;
rtx temp;
if (!validate_arglist (exp, REAL_TYPE, VOID_TYPE))
rmode = TYPE_MODE (TREE_TYPE (exp));
fmt = REAL_MODE_FORMAT (fmode);
+ arg = builtin_save_expr (arg);
+
+ /* Expand the argument yielding a RTX expression. */
+ temp = expand_normal (arg);
+
+ /* Check if the back end provides an insn that handles signbit for the
+ argument's mode. */
+ icode = signbit_optab->handlers [(int) fmode].insn_code;
+ if (icode != CODE_FOR_nothing)
+ {
+ target = gen_reg_rtx (TYPE_MODE (TREE_TYPE (exp)));
+ emit_unop_insn (icode, target, temp, UNKNOWN);
+ return target;
+ }
+
/* For floating point formats without a sign bit, implement signbit
as "ARG < 0.0". */
bitpos = fmt->signbit_ro;
return expand_expr (arg, target, VOIDmode, EXPAND_NORMAL);
}
- temp = expand_normal (arg);
if (GET_MODE_SIZE (fmode) <= UNITS_PER_WORD)
{
imode = int_mode_for_mode (fmode);
if (! flag_unsafe_math_optimizations)
break;
CASE_FLT_FN (BUILT_IN_ISINF):
+ CASE_FLT_FN (BUILT_IN_FINITE):
+ case BUILT_IN_ISFINITE:
+ case BUILT_IN_ISNORMAL:
target = expand_builtin_interclass_mathfn (exp, target, subtarget);
if (target)
return target;
return const0_rtx;
return expand_builtin_next_arg ();
+ case BUILT_IN_CLEAR_CACHE:
+ target = expand_builtin___clear_cache (exp);
+ if (target)
+ return target;
+ break;
+
case BUILT_IN_CLASSIFY_TYPE:
return expand_builtin_classify_type (exp);
return NULL_TREE;
- case BUILT_IN_FINITE:
+ case BUILT_IN_ISFINITE:
if (!HONOR_NANS (TYPE_MODE (TREE_TYPE (arg)))
&& !HONOR_INFINITIES (TYPE_MODE (TREE_TYPE (arg))))
return omit_one_operand (type, integer_one_node, arg);
case BUILT_IN_FINITED32:
case BUILT_IN_FINITED64:
case BUILT_IN_FINITED128:
- return fold_builtin_classify (fndecl, arg0, BUILT_IN_FINITE);
+ case BUILT_IN_ISFINITE:
+ return fold_builtin_classify (fndecl, arg0, BUILT_IN_ISFINITE);
CASE_FLT_FN (BUILT_IN_ISINF):
case BUILT_IN_ISINFD32:
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