/* Expand builtin functions.
Copyright (C) 1988, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
- 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011
- Free Software Foundation, Inc.
+ 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011,
+ 2012 Free Software Foundation, Inc.
This file is part of GCC.
/* Return true if NAME starts with __builtin_ or __sync_. */
-bool
+static bool
is_builtin_name (const char *name)
{
if (strncmp (name, "__builtin_", 10) == 0)
return is_builtin_name (name);
}
-/* Compute values M and N such that M divides (address of EXP - N) and
- such that N < M. Store N in *BITPOSP and return M.
+/* Compute values M and N such that M divides (address of EXP - N) and such
+ that N < M. If these numbers can be determined, store M in alignp and N in
+ *BITPOSP and return true. Otherwise return false and store BITS_PER_UNIT to
+ *alignp and any bit-offset to *bitposp.
Note that the address (and thus the alignment) computed here is based
on the address to which a symbol resolves, whereas DECL_ALIGN is based
on the address at which an object is actually located. These two
addresses are not always the same. For example, on ARM targets,
the address &foo of a Thumb function foo() has the lowest bit set,
- whereas foo() itself starts on an even address. */
+ whereas foo() itself starts on an even address.
-unsigned int
-get_object_alignment_1 (tree exp, unsigned HOST_WIDE_INT *bitposp)
+ If ADDR_P is true we are taking the address of the memory reference EXP
+ and thus cannot rely on the access taking place. */
+
+static bool
+get_object_alignment_2 (tree exp, unsigned int *alignp,
+ unsigned HOST_WIDE_INT *bitposp, bool addr_p)
{
HOST_WIDE_INT bitsize, bitpos;
tree offset;
enum machine_mode mode;
int unsignedp, volatilep;
- unsigned int align, inner;
+ unsigned int inner, align = BITS_PER_UNIT;
+ bool known_alignment = false;
/* Get the innermost object and the constant (bitpos) and possibly
variable (offset) offset of the access. */
/* Extract alignment information from the innermost object and
possibly adjust bitpos and offset. */
- if (TREE_CODE (exp) == CONST_DECL)
- exp = DECL_INITIAL (exp);
- if (DECL_P (exp)
- && TREE_CODE (exp) != LABEL_DECL)
- {
- if (TREE_CODE (exp) == FUNCTION_DECL)
- {
- /* Function addresses can encode extra information besides their
- alignment. However, if TARGET_PTRMEMFUNC_VBIT_LOCATION
- allows the low bit to be used as a virtual bit, we know
- that the address itself must be 2-byte aligned. */
- if (TARGET_PTRMEMFUNC_VBIT_LOCATION == ptrmemfunc_vbit_in_pfn)
- align = 2 * BITS_PER_UNIT;
- else
- align = BITS_PER_UNIT;
- }
- else
- align = DECL_ALIGN (exp);
+ if (TREE_CODE (exp) == FUNCTION_DECL)
+ {
+ /* Function addresses can encode extra information besides their
+ alignment. However, if TARGET_PTRMEMFUNC_VBIT_LOCATION
+ allows the low bit to be used as a virtual bit, we know
+ that the address itself must be at least 2-byte aligned. */
+ if (TARGET_PTRMEMFUNC_VBIT_LOCATION == ptrmemfunc_vbit_in_pfn)
+ align = 2 * BITS_PER_UNIT;
}
- else if (CONSTANT_CLASS_P (exp))
+ else if (TREE_CODE (exp) == LABEL_DECL)
+ ;
+ else if (TREE_CODE (exp) == CONST_DECL)
{
+ /* The alignment of a CONST_DECL is determined by its initializer. */
+ exp = DECL_INITIAL (exp);
align = TYPE_ALIGN (TREE_TYPE (exp));
#ifdef CONSTANT_ALIGNMENT
- align = (unsigned)CONSTANT_ALIGNMENT (exp, align);
+ if (CONSTANT_CLASS_P (exp))
+ align = (unsigned) CONSTANT_ALIGNMENT (exp, align);
#endif
+ known_alignment = true;
+ }
+ else if (DECL_P (exp))
+ {
+ align = DECL_ALIGN (exp);
+ known_alignment = true;
}
else if (TREE_CODE (exp) == VIEW_CONVERT_EXPR)
- align = TYPE_ALIGN (TREE_TYPE (exp));
- else if (TREE_CODE (exp) == INDIRECT_REF)
- align = TYPE_ALIGN (TREE_TYPE (exp));
- else if (TREE_CODE (exp) == MEM_REF)
+ {
+ align = TYPE_ALIGN (TREE_TYPE (exp));
+ }
+ else if (TREE_CODE (exp) == INDIRECT_REF
+ || TREE_CODE (exp) == MEM_REF
+ || TREE_CODE (exp) == TARGET_MEM_REF)
{
tree addr = TREE_OPERAND (exp, 0);
- struct ptr_info_def *pi;
+ unsigned ptr_align;
+ unsigned HOST_WIDE_INT ptr_bitpos;
+
if (TREE_CODE (addr) == BIT_AND_EXPR
&& TREE_CODE (TREE_OPERAND (addr, 1)) == INTEGER_CST)
{
align *= BITS_PER_UNIT;
addr = TREE_OPERAND (addr, 0);
}
- else
- align = BITS_PER_UNIT;
- if (TREE_CODE (addr) == SSA_NAME
- && (pi = SSA_NAME_PTR_INFO (addr)))
- {
- bitpos += (pi->misalign * BITS_PER_UNIT) & ~(align - 1);
- align = MAX (pi->align * BITS_PER_UNIT, align);
- }
- else if (TREE_CODE (addr) == ADDR_EXPR)
- align = MAX (align, get_object_alignment (TREE_OPERAND (addr, 0)));
- bitpos += mem_ref_offset (exp).low * BITS_PER_UNIT;
- }
- else if (TREE_CODE (exp) == TARGET_MEM_REF)
- {
- struct ptr_info_def *pi;
- tree addr = TMR_BASE (exp);
- if (TREE_CODE (addr) == BIT_AND_EXPR
- && TREE_CODE (TREE_OPERAND (addr, 1)) == INTEGER_CST)
+
+ known_alignment
+ = get_pointer_alignment_1 (addr, &ptr_align, &ptr_bitpos);
+ align = MAX (ptr_align, align);
+
+ /* The alignment of the pointer operand in a TARGET_MEM_REF
+ has to take the variable offset parts into account. */
+ if (TREE_CODE (exp) == TARGET_MEM_REF)
{
- align = (TREE_INT_CST_LOW (TREE_OPERAND (addr, 1))
- & -TREE_INT_CST_LOW (TREE_OPERAND (addr, 1)));
- align *= BITS_PER_UNIT;
- addr = TREE_OPERAND (addr, 0);
+ if (TMR_INDEX (exp))
+ {
+ unsigned HOST_WIDE_INT step = 1;
+ if (TMR_STEP (exp))
+ step = TREE_INT_CST_LOW (TMR_STEP (exp));
+ align = MIN (align, (step & -step) * BITS_PER_UNIT);
+ }
+ if (TMR_INDEX2 (exp))
+ align = BITS_PER_UNIT;
+ known_alignment = false;
}
+
+ /* When EXP is an actual memory reference then we can use
+ TYPE_ALIGN of a pointer indirection to derive alignment.
+ Do so only if get_pointer_alignment_1 did not reveal absolute
+ alignment knowledge and if using that alignment would
+ improve the situation. */
+ if (!addr_p && !known_alignment
+ && TYPE_ALIGN (TREE_TYPE (exp)) > align)
+ align = TYPE_ALIGN (TREE_TYPE (exp));
else
- align = BITS_PER_UNIT;
- if (TREE_CODE (addr) == SSA_NAME
- && (pi = SSA_NAME_PTR_INFO (addr)))
- {
- bitpos += (pi->misalign * BITS_PER_UNIT) & ~(align - 1);
- align = MAX (pi->align * BITS_PER_UNIT, align);
- }
- else if (TREE_CODE (addr) == ADDR_EXPR)
- align = MAX (align, get_object_alignment (TREE_OPERAND (addr, 0)));
- if (TMR_OFFSET (exp))
- bitpos += TREE_INT_CST_LOW (TMR_OFFSET (exp)) * BITS_PER_UNIT;
- if (TMR_INDEX (exp) && TMR_STEP (exp))
{
- unsigned HOST_WIDE_INT step = TREE_INT_CST_LOW (TMR_STEP (exp));
- align = MIN (align, (step & -step) * BITS_PER_UNIT);
+ /* Else adjust bitpos accordingly. */
+ bitpos += ptr_bitpos;
+ if (TREE_CODE (exp) == MEM_REF
+ || TREE_CODE (exp) == TARGET_MEM_REF)
+ bitpos += mem_ref_offset (exp).low * BITS_PER_UNIT;
}
- else if (TMR_INDEX (exp))
- align = BITS_PER_UNIT;
- if (TMR_INDEX2 (exp))
- align = BITS_PER_UNIT;
}
- else
- align = BITS_PER_UNIT;
+ else if (TREE_CODE (exp) == STRING_CST)
+ {
+ /* STRING_CST are the only constant objects we allow to be not
+ wrapped inside a CONST_DECL. */
+ align = TYPE_ALIGN (TREE_TYPE (exp));
+#ifdef CONSTANT_ALIGNMENT
+ if (CONSTANT_CLASS_P (exp))
+ align = (unsigned) CONSTANT_ALIGNMENT (exp, align);
+#endif
+ known_alignment = true;
+ }
/* If there is a non-constant offset part extract the maximum
alignment that can prevail. */
}
offset = next_offset;
}
-
/* Alignment is innermost object alignment adjusted by the constant
and non-constant offset parts. */
align = MIN (align, inner);
- bitpos = bitpos & (align - 1);
- *bitposp = bitpos;
- return align;
+ *alignp = align;
+ *bitposp = bitpos & (*alignp - 1);
+ return known_alignment;
+}
+
+/* For a memory reference expression EXP compute values M and N such that M
+ divides (&EXP - N) and such that N < M. If these numbers can be determined,
+ store M in alignp and N in *BITPOSP and return true. Otherwise return false
+ and store BITS_PER_UNIT to *alignp and any bit-offset to *bitposp. */
+
+bool
+get_object_alignment_1 (tree exp, unsigned int *alignp,
+ unsigned HOST_WIDE_INT *bitposp)
+{
+ return get_object_alignment_2 (exp, alignp, bitposp, false);
}
/* Return the alignment in bits of EXP, an object. */
unsigned HOST_WIDE_INT bitpos = 0;
unsigned int align;
- align = get_object_alignment_1 (exp, &bitpos);
+ get_object_alignment_1 (exp, &align, &bitpos);
/* align and bitpos now specify known low bits of the pointer.
ptr & (align - 1) == bitpos. */
if (bitpos != 0)
align = (bitpos & -bitpos);
-
return align;
}
-/* Return the alignment in bits of EXP, a pointer valued expression.
- The alignment returned is, by default, the alignment of the thing that
- EXP points to. If it is not a POINTER_TYPE, 0 is returned.
+/* For a pointer valued expression EXP compute values M and N such that M
+ divides (EXP - N) and such that N < M. If these numbers can be determined,
+ store M in alignp and N in *BITPOSP and return true. Return false if
+ the results are just a conservative approximation.
- Otherwise, look at the expression to see if we can do better, i.e., if the
- expression is actually pointing at an object whose alignment is tighter. */
+ If EXP is not a pointer, false is returned too. */
-unsigned int
-get_pointer_alignment (tree exp)
+bool
+get_pointer_alignment_1 (tree exp, unsigned int *alignp,
+ unsigned HOST_WIDE_INT *bitposp)
{
STRIP_NOPS (exp);
if (TREE_CODE (exp) == ADDR_EXPR)
- return get_object_alignment (TREE_OPERAND (exp, 0));
+ return get_object_alignment_2 (TREE_OPERAND (exp, 0),
+ alignp, bitposp, true);
else if (TREE_CODE (exp) == SSA_NAME
&& POINTER_TYPE_P (TREE_TYPE (exp)))
{
+ unsigned int ptr_align, ptr_misalign;
struct ptr_info_def *pi = SSA_NAME_PTR_INFO (exp);
- unsigned align;
- if (!pi)
- return BITS_PER_UNIT;
- if (pi->misalign != 0)
- align = (pi->misalign & -pi->misalign);
+
+ if (pi && get_ptr_info_alignment (pi, &ptr_align, &ptr_misalign))
+ {
+ *bitposp = ptr_misalign * BITS_PER_UNIT;
+ *alignp = ptr_align * BITS_PER_UNIT;
+ /* We cannot really tell whether this result is an approximation. */
+ return true;
+ }
else
- align = pi->align;
- return align * BITS_PER_UNIT;
+ {
+ *bitposp = 0;
+ *alignp = BITS_PER_UNIT;
+ return false;
+ }
+ }
+ else if (TREE_CODE (exp) == INTEGER_CST)
+ {
+ *alignp = BIGGEST_ALIGNMENT;
+ *bitposp = ((TREE_INT_CST_LOW (exp) * BITS_PER_UNIT)
+ & (BIGGEST_ALIGNMENT - 1));
+ return true;
}
- return POINTER_TYPE_P (TREE_TYPE (exp)) ? BITS_PER_UNIT : 0;
+ *bitposp = 0;
+ *alignp = BITS_PER_UNIT;
+ return false;
+}
+
+/* Return the alignment in bits of EXP, a pointer valued expression.
+ The alignment returned is, by default, the alignment of the thing that
+ EXP points to. If it is not a POINTER_TYPE, 0 is returned.
+
+ Otherwise, look at the expression to see if we can do better, i.e., if the
+ expression is actually pointing at an object whose alignment is tighter. */
+
+unsigned int
+get_pointer_alignment (tree exp)
+{
+ unsigned HOST_WIDE_INT bitpos = 0;
+ unsigned int align;
+
+ get_pointer_alignment_1 (exp, &align, &bitpos);
+
+ /* align and bitpos now specify known low bits of the pointer.
+ ptr & (align - 1) == bitpos. */
+
+ if (bitpos != 0)
+ align = (bitpos & -bitpos);
+
+ return align;
}
/* Compute the length of a C string. TREE_STRING_LENGTH is not the right
&& GET_MODE_SIZE (mode) >= UNITS_PER_WORD)
j = j + UNITS_PER_WORD - 2 * (j % UNITS_PER_WORD) - 1;
j *= BITS_PER_UNIT;
- gcc_assert (j < 2 * HOST_BITS_PER_WIDE_INT);
+ gcc_assert (j < HOST_BITS_PER_DOUBLE_INT);
if (ch)
ch = (unsigned char) str[i];
tem = RETURN_ADDR_RTX (count, tem);
#else
tem = memory_address (Pmode,
- plus_constant (tem, GET_MODE_SIZE (Pmode)));
+ plus_constant (Pmode, tem, GET_MODE_SIZE (Pmode)));
tem = gen_frame_mem (Pmode, tem);
#endif
return tem;
set_mem_alias_set (mem, setjmp_alias_set);
emit_move_insn (mem, targetm.builtin_setjmp_frame_value ());
- mem = gen_rtx_MEM (Pmode, plus_constant (buf_addr, GET_MODE_SIZE (Pmode))),
+ mem = gen_rtx_MEM (Pmode, plus_constant (Pmode, buf_addr,
+ GET_MODE_SIZE (Pmode))),
set_mem_alias_set (mem, setjmp_alias_set);
emit_move_insn (validize_mem (mem),
force_reg (Pmode, gen_rtx_LABEL_REF (Pmode, receiver_label)));
stack_save = gen_rtx_MEM (sa_mode,
- plus_constant (buf_addr,
+ plus_constant (Pmode, buf_addr,
2 * GET_MODE_SIZE (Pmode)));
set_mem_alias_set (stack_save, setjmp_alias_set);
emit_stack_save (SAVE_NONLOCAL, &stack_save);
#endif
{
fp = gen_rtx_MEM (Pmode, buf_addr);
- lab = gen_rtx_MEM (Pmode, plus_constant (buf_addr,
+ lab = gen_rtx_MEM (Pmode, plus_constant (Pmode, buf_addr,
GET_MODE_SIZE (Pmode)));
- stack = gen_rtx_MEM (sa_mode, plus_constant (buf_addr,
+ stack = gen_rtx_MEM (sa_mode, plus_constant (Pmode, buf_addr,
2 * GET_MODE_SIZE (Pmode)));
set_mem_alias_set (fp, setjmp_alias_set);
set_mem_alias_set (lab, setjmp_alias_set);
r_save_area = copy_to_reg (r_save_area);
r_fp = gen_rtx_MEM (Pmode, r_save_area);
r_sp = gen_rtx_MEM (STACK_SAVEAREA_MODE (SAVE_NONLOCAL),
- plus_constant (r_save_area, GET_MODE_SIZE (Pmode)));
+ plus_constant (Pmode, r_save_area,
+ GET_MODE_SIZE (Pmode)));
crtl->has_nonlocal_goto = 1;
= gen_rtx_MEM (sa_mode,
memory_address
(sa_mode,
- plus_constant (buf_addr, 2 * GET_MODE_SIZE (Pmode))));
+ plus_constant (Pmode, buf_addr,
+ 2 * GET_MODE_SIZE (Pmode))));
emit_stack_save (SAVE_NONLOCAL, &stack_save);
}
{
tree orig_exp = exp;
rtx addr, mem;
- HOST_WIDE_INT off;
/* When EXP is not resolved SAVE_EXPR, MEM_ATTRS can be still derived
from its expression, for expr->a.b only <variable>.a.b is recorded. */
mem = gen_rtx_MEM (BLKmode, memory_address (BLKmode, addr));
/* Get an expression we can use to find the attributes to assign to MEM.
- If it is an ADDR_EXPR, use the operand. Otherwise, dereference it if
- we can. First remove any nops. */
+ First remove any nops. */
while (CONVERT_EXPR_P (exp)
&& POINTER_TYPE_P (TREE_TYPE (TREE_OPERAND (exp, 0))))
exp = TREE_OPERAND (exp, 0);
- off = 0;
- if (TREE_CODE (exp) == POINTER_PLUS_EXPR
- && TREE_CODE (TREE_OPERAND (exp, 0)) == ADDR_EXPR
- && host_integerp (TREE_OPERAND (exp, 1), 0)
- && (off = tree_low_cst (TREE_OPERAND (exp, 1), 0)) > 0)
- exp = TREE_OPERAND (TREE_OPERAND (exp, 0), 0);
- else if (TREE_CODE (exp) == ADDR_EXPR)
- exp = TREE_OPERAND (exp, 0);
- else if (POINTER_TYPE_P (TREE_TYPE (exp)))
- exp = build1 (INDIRECT_REF, TREE_TYPE (TREE_TYPE (exp)), exp);
- else
- exp = NULL;
-
- /* Honor attributes derived from exp, except for the alias set
- (as builtin stringops may alias with anything) and the size
- (as stringops may access multiple array elements). */
- if (exp)
- {
+ /* Build a MEM_REF representing the whole accessed area as a byte blob,
+ (as builtin stringops may alias with anything). */
+ exp = fold_build2 (MEM_REF,
+ build_array_type (char_type_node,
+ build_range_type (sizetype,
+ size_one_node, len)),
+ exp, build_int_cst (ptr_type_node, 0));
+
+ /* If the MEM_REF has no acceptable address, try to get the base object
+ from the original address we got, and build an all-aliasing
+ unknown-sized access to that one. */
+ if (is_gimple_mem_ref_addr (TREE_OPERAND (exp, 0)))
+ set_mem_attributes (mem, exp, 0);
+ else if (TREE_CODE (TREE_OPERAND (exp, 0)) == ADDR_EXPR
+ && (exp = get_base_address (TREE_OPERAND (TREE_OPERAND (exp, 0),
+ 0))))
+ {
+ exp = build_fold_addr_expr (exp);
+ exp = fold_build2 (MEM_REF,
+ build_array_type (char_type_node,
+ build_range_type (sizetype,
+ size_zero_node,
+ NULL)),
+ exp, build_int_cst (ptr_type_node, 0));
set_mem_attributes (mem, exp, 0);
-
- if (off)
- mem = adjust_automodify_address_nv (mem, BLKmode, NULL, off);
-
- /* Allow the string and memory builtins to overflow from one
- field into another, see http://gcc.gnu.org/PR23561.
- Thus avoid COMPONENT_REFs in MEM_EXPR unless we know the whole
- memory accessed by the string or memory builtin will fit
- within the field. */
- if (MEM_EXPR (mem) && TREE_CODE (MEM_EXPR (mem)) == COMPONENT_REF)
- {
- tree mem_expr = MEM_EXPR (mem);
- HOST_WIDE_INT offset = -1, length = -1;
- tree inner = exp;
-
- while (TREE_CODE (inner) == ARRAY_REF
- || CONVERT_EXPR_P (inner)
- || TREE_CODE (inner) == VIEW_CONVERT_EXPR
- || TREE_CODE (inner) == SAVE_EXPR)
- inner = TREE_OPERAND (inner, 0);
-
- gcc_assert (TREE_CODE (inner) == COMPONENT_REF);
-
- if (MEM_OFFSET_KNOWN_P (mem))
- offset = MEM_OFFSET (mem);
-
- if (offset >= 0 && len && host_integerp (len, 0))
- length = tree_low_cst (len, 0);
-
- while (TREE_CODE (inner) == COMPONENT_REF)
- {
- tree field = TREE_OPERAND (inner, 1);
- gcc_assert (TREE_CODE (mem_expr) == COMPONENT_REF);
- gcc_assert (field == TREE_OPERAND (mem_expr, 1));
-
- /* Bitfields are generally not byte-addressable. */
- gcc_assert (!DECL_BIT_FIELD (field)
- || ((tree_low_cst (DECL_FIELD_BIT_OFFSET (field), 1)
- % BITS_PER_UNIT) == 0
- && host_integerp (DECL_SIZE (field), 0)
- && (TREE_INT_CST_LOW (DECL_SIZE (field))
- % BITS_PER_UNIT) == 0));
-
- /* If we can prove that the memory starting at XEXP (mem, 0) and
- ending at XEXP (mem, 0) + LENGTH will fit into this field, we
- can keep the COMPONENT_REF in MEM_EXPR. But be careful with
- fields without DECL_SIZE_UNIT like flexible array members. */
- if (length >= 0
- && DECL_SIZE_UNIT (field)
- && host_integerp (DECL_SIZE_UNIT (field), 0))
- {
- HOST_WIDE_INT size
- = TREE_INT_CST_LOW (DECL_SIZE_UNIT (field));
- if (offset <= size
- && length <= size
- && offset + length <= size)
- break;
- }
-
- if (offset >= 0
- && host_integerp (DECL_FIELD_OFFSET (field), 0))
- offset += TREE_INT_CST_LOW (DECL_FIELD_OFFSET (field))
- + tree_low_cst (DECL_FIELD_BIT_OFFSET (field), 1)
- / BITS_PER_UNIT;
- else
- {
- offset = -1;
- length = -1;
- }
-
- mem_expr = TREE_OPERAND (mem_expr, 0);
- inner = TREE_OPERAND (inner, 0);
- }
-
- if (mem_expr == NULL)
- offset = -1;
- if (mem_expr != MEM_EXPR (mem))
- {
- set_mem_expr (mem, mem_expr);
- if (offset >= 0)
- set_mem_offset (mem, offset);
- else
- clear_mem_offset (mem);
- }
- }
- set_mem_alias_set (mem, 0);
- clear_mem_size (mem);
}
-
+ set_mem_alias_set (mem, 0);
return mem;
}
\f
as we might have pretended they were passed. Make sure it's a valid
operand, as emit_move_insn isn't expected to handle a PLUS. */
tem
- = force_operand (plus_constant (tem, crtl->args.pretend_args_size),
+ = force_operand (plus_constant (Pmode, tem, crtl->args.pretend_args_size),
NULL_RTX);
#endif
emit_move_insn (adjust_address (registers, Pmode, 0), tem);
dest = virtual_outgoing_args_rtx;
#ifndef STACK_GROWS_DOWNWARD
if (CONST_INT_P (argsize))
- dest = plus_constant (dest, -INTVAL (argsize));
+ dest = plus_constant (Pmode, dest, -INTVAL (argsize));
else
dest = gen_rtx_PLUS (Pmode, dest, negate_rtx (Pmode, argsize));
#endif
interclass_mathfn_icode (tree arg, tree fndecl)
{
bool errno_set = false;
- optab builtin_optab = 0;
+ optab builtin_optab = unknown_optab;
enum machine_mode mode;
switch (DECL_FUNCTION_CODE (fndecl))
else
gcc_unreachable ();
- op1 = assign_temp (TREE_TYPE (arg), 0, 1, 1);
- op2 = assign_temp (TREE_TYPE (arg), 0, 1, 1);
- op1a = copy_to_mode_reg (Pmode, XEXP (op1, 0));
- op2a = copy_to_mode_reg (Pmode, XEXP (op2, 0));
+ op1 = assign_temp (TREE_TYPE (arg), 1, 1);
+ op2 = assign_temp (TREE_TYPE (arg), 1, 1);
+ op1a = copy_addr_to_reg (XEXP (op1, 0));
+ op2a = copy_addr_to_reg (XEXP (op2, 0));
top1 = make_tree (build_pointer_type (TREE_TYPE (arg)), op1a);
top2 = make_tree (build_pointer_type (TREE_TYPE (arg)), op2a);
tree fndecl = get_callee_fndecl (exp);
tree arg;
enum machine_mode mode;
-
- /* There's no easy way to detect the case we need to set EDOM. */
- if (flag_errno_math)
- return NULL_RTX;
+ enum built_in_function fallback_fn = BUILT_IN_NONE;
if (!validate_arglist (exp, REAL_TYPE, VOID_TYPE))
gcc_unreachable ();
switch (DECL_FUNCTION_CODE (fndecl))
{
CASE_FLT_FN (BUILT_IN_IRINT):
+ fallback_fn = BUILT_IN_LRINT;
+ /* FALLTHRU */
CASE_FLT_FN (BUILT_IN_LRINT):
CASE_FLT_FN (BUILT_IN_LLRINT):
- builtin_optab = lrint_optab; break;
+ builtin_optab = lrint_optab;
+ break;
CASE_FLT_FN (BUILT_IN_IROUND):
+ fallback_fn = BUILT_IN_LROUND;
+ /* FALLTHRU */
CASE_FLT_FN (BUILT_IN_LROUND):
CASE_FLT_FN (BUILT_IN_LLROUND):
- builtin_optab = lround_optab; break;
+ builtin_optab = lround_optab;
+ break;
default:
gcc_unreachable ();
}
+ /* There's no easy way to detect the case we need to set EDOM. */
+ if (flag_errno_math && fallback_fn == BUILT_IN_NONE)
+ return NULL_RTX;
+
/* Make a suitable register to place result in. */
mode = TYPE_MODE (TREE_TYPE (exp));
- target = gen_reg_rtx (mode);
+ /* There's no easy way to detect the case we need to set EDOM. */
+ if (!flag_errno_math)
+ {
+ target = gen_reg_rtx (mode);
- /* Wrap the computation of the argument in a SAVE_EXPR, as we may
- need to expand the argument again. This way, we will not perform
- side-effects more the once. */
- CALL_EXPR_ARG (exp, 0) = arg = builtin_save_expr (arg);
+ /* Wrap the computation of the argument in a SAVE_EXPR, as we may
+ need to expand the argument again. This way, we will not perform
+ side-effects more the once. */
+ CALL_EXPR_ARG (exp, 0) = arg = builtin_save_expr (arg);
- op0 = expand_expr (arg, NULL, VOIDmode, EXPAND_NORMAL);
+ op0 = expand_expr (arg, NULL, VOIDmode, EXPAND_NORMAL);
- start_sequence ();
+ start_sequence ();
- if (expand_sfix_optab (target, op0, builtin_optab))
- {
- /* Output the entire sequence. */
- insns = get_insns ();
+ if (expand_sfix_optab (target, op0, builtin_optab))
+ {
+ /* Output the entire sequence. */
+ insns = get_insns ();
+ end_sequence ();
+ emit_insn (insns);
+ return target;
+ }
+
+ /* If we were unable to expand via the builtin, stop the sequence
+ (without outputting the insns) and call to the library function
+ with the stabilized argument list. */
end_sequence ();
- emit_insn (insns);
- return target;
}
- /* If we were unable to expand via the builtin, stop the sequence
- (without outputting the insns) and call to the library function
- with the stabilized argument list. */
- end_sequence ();
+ if (fallback_fn != BUILT_IN_NONE)
+ {
+ /* Fall back to rounding to long int. Use implicit_p 0 - for non-C99
+ targets, (int) round (x) should never be transformed into
+ BUILT_IN_IROUND and if __builtin_iround is called directly, emit
+ a call to lround in the hope that the target provides at least some
+ C99 functions. This should result in the best user experience for
+ not full C99 targets. */
+ tree fallback_fndecl = mathfn_built_in_1 (TREE_TYPE (arg),
+ fallback_fn, 0);
+
+ exp = build_call_nofold_loc (EXPR_LOCATION (exp),
+ fallback_fndecl, 1, arg);
+
+ target = expand_call (exp, NULL_RTX, target == const0_rtx);
+ return convert_to_mode (mode, target, 0);
+ }
target = expand_call (exp, target, target == const0_rtx);
adjust it. */
if (endp == 1)
{
- rtx tem = plus_constant (gen_lowpart (GET_MODE (target), target), 1);
+ rtx tem = plus_constant (GET_MODE (target),
+ gen_lowpart (GET_MODE (target), target), 1);
emit_move_insn (target, force_operand (tem, NULL_RTX));
}
}
if (GET_MODE (target) != GET_MODE (ret))
ret = gen_lowpart (GET_MODE (target), ret);
- ret = plus_constant (ret, INTVAL (len_rtx));
+ ret = plus_constant (GET_MODE (ret), ret, INTVAL (len_rtx));
ret = emit_move_insn (target, force_operand (ret, NULL_RTX));
gcc_assert (ret);
if (!REG_P (tem)
&& ! CONSTANT_P (tem))
- tem = copy_to_mode_reg (Pmode, tem);
+ tem = copy_addr_to_reg (tem);
return tem;
}
}
bool alloca_with_align = (DECL_FUNCTION_CODE (get_callee_fndecl (exp))
== BUILT_IN_ALLOCA_WITH_ALIGN);
- /* Emit normal call if marked not-inlineable. */
- if (CALL_CANNOT_INLINE_P (exp))
+ /* Emit normal call if we use mudflap. */
+ if (flag_mudflap)
return NULL_RTX;
valid_arglist
return result;
}
-/* Expand a call to a bswap builtin with argument ARG0. MODE
- is the mode to expand with. */
+/* Expand a call to bswap builtin in EXP.
+ Return NULL_RTX if a normal call should be emitted rather than expanding the
+ function in-line. If convenient, the result should be placed in TARGET.
+ SUBTARGET may be used as the target for computing one of EXP's operands. */
static rtx
-expand_builtin_bswap (tree exp, rtx target, rtx subtarget)
+expand_builtin_bswap (enum machine_mode target_mode, tree exp, rtx target,
+ rtx subtarget)
{
- enum machine_mode mode;
tree arg;
rtx op0;
return NULL_RTX;
arg = CALL_EXPR_ARG (exp, 0);
- mode = TYPE_MODE (TREE_TYPE (arg));
- op0 = expand_expr (arg, subtarget, VOIDmode, EXPAND_NORMAL);
+ op0 = expand_expr (arg,
+ subtarget && GET_MODE (subtarget) == target_mode
+ ? subtarget : NULL_RTX,
+ target_mode, EXPAND_NORMAL);
+ if (GET_MODE (op0) != target_mode)
+ op0 = convert_to_mode (target_mode, op0, 1);
- target = expand_unop (mode, bswap_optab, op0, target, 1);
+ target = expand_unop (target_mode, bswap_optab, op0, target, 1);
gcc_assert (target);
- return convert_to_mode (mode, target, 0);
+ return convert_to_mode (target_mode, target, 1);
}
/* Expand a call to a unary builtin in EXP.
}
static rtx
-expand_builtin_init_trampoline (tree exp)
+expand_builtin_init_trampoline (tree exp, bool onstack)
{
tree t_tramp, t_func, t_chain;
rtx m_tramp, r_tramp, r_chain, tmp;
m_tramp = gen_rtx_MEM (BLKmode, r_tramp);
MEM_NOTRAP_P (m_tramp) = 1;
- /* The TRAMP argument should be the address of a field within the
- local function's FRAME decl. Let's see if we can fill in the
- to fill in the MEM_ATTRs for this memory. */
+ /* If ONSTACK, the TRAMP argument should be the address of a field
+ within the local function's FRAME decl. Either way, let's see if
+ we can fill in the MEM_ATTRs for this memory. */
if (TREE_CODE (t_tramp) == ADDR_EXPR)
set_mem_attributes_minus_bitpos (m_tramp, TREE_OPERAND (t_tramp, 0),
true, 0);
+ /* Creator of a heap trampoline is responsible for making sure the
+ address is aligned to at least STACK_BOUNDARY. Normally malloc
+ will ensure this anyhow. */
tmp = round_trampoline_addr (r_tramp);
if (tmp != r_tramp)
{
/* Generate insns to initialize the trampoline. */
targetm.calls.trampoline_init (m_tramp, t_func, r_chain);
- trampolines_created = 1;
+ if (onstack)
+ {
+ trampolines_created = 1;
- warning_at (DECL_SOURCE_LOCATION (t_func), OPT_Wtrampolines,
- "trampoline generated for nested function %qD", t_func);
+ warning_at (DECL_SOURCE_LOCATION (t_func), OPT_Wtrampolines,
+ "trampoline generated for nested function %qD", t_func);
+ }
return const0_rtx;
}
if (bitpos < GET_MODE_BITSIZE (rmode))
{
- double_int mask = double_int_setbit (double_int_zero, bitpos);
+ double_int mask = double_int_zero.set_bit (bitpos);
if (GET_MODE_SIZE (imode) > GET_MODE_SIZE (rmode))
temp = gen_lowpart (rmode, temp);
get_memmodel (tree exp)
{
rtx op;
+ unsigned HOST_WIDE_INT val;
/* If the parameter is not a constant, it's a run time value so we'll just
convert it to MEMMODEL_SEQ_CST to avoid annoying runtime checking. */
return MEMMODEL_SEQ_CST;
op = expand_normal (exp);
- if (INTVAL (op) < 0 || INTVAL (op) >= MEMMODEL_LAST)
+
+ val = INTVAL (op);
+ if (targetm.memmodel_check)
+ val = targetm.memmodel_check (val);
+ else if (val & ~MEMMODEL_MASK)
+ {
+ warning (OPT_Winvalid_memory_model,
+ "Unknown architecture specifier in memory model to builtin.");
+ return MEMMODEL_SEQ_CST;
+ }
+
+ if ((INTVAL(op) & MEMMODEL_MASK) >= MEMMODEL_LAST)
{
warning (OPT_Winvalid_memory_model,
"invalid memory model argument to builtin");
return MEMMODEL_SEQ_CST;
}
- return (enum memmodel) INTVAL (op);
+
+ return (enum memmodel) val;
}
/* Expand the __atomic_exchange intrinsic:
enum memmodel model;
model = get_memmodel (CALL_EXPR_ARG (exp, 2));
- if (model == MEMMODEL_CONSUME)
+ if ((model & MEMMODEL_MASK) == MEMMODEL_CONSUME)
{
error ("invalid memory model for %<__atomic_exchange%>");
return NULL_RTX;
success = get_memmodel (CALL_EXPR_ARG (exp, 4));
failure = get_memmodel (CALL_EXPR_ARG (exp, 5));
- if (failure == MEMMODEL_RELEASE || failure == MEMMODEL_ACQ_REL)
+ if ((failure & MEMMODEL_MASK) == MEMMODEL_RELEASE
+ || (failure & MEMMODEL_MASK) == MEMMODEL_ACQ_REL)
{
error ("invalid failure memory model for %<__atomic_compare_exchange%>");
return NULL_RTX;
expect = expand_normal (CALL_EXPR_ARG (exp, 1));
expect = convert_memory_address (Pmode, expect);
+ expect = gen_rtx_MEM (mode, expect);
desired = expand_expr_force_mode (CALL_EXPR_ARG (exp, 2), mode);
weak = CALL_EXPR_ARG (exp, 3);
if (host_integerp (weak, 0) && tree_low_cst (weak, 0) != 0)
is_weak = true;
- oldval = copy_to_reg (gen_rtx_MEM (mode, expect));
-
+ oldval = expect;
if (!expand_atomic_compare_and_swap ((target == const0_rtx ? NULL : &target),
&oldval, mem, oldval, desired,
is_weak, success, failure))
return NULL_RTX;
- emit_move_insn (gen_rtx_MEM (mode, expect), oldval);
+ if (oldval != expect)
+ emit_move_insn (expect, oldval);
+
return target;
}
enum memmodel model;
model = get_memmodel (CALL_EXPR_ARG (exp, 1));
- if (model == MEMMODEL_RELEASE
- || model == MEMMODEL_ACQ_REL)
+ if ((model & MEMMODEL_MASK) == MEMMODEL_RELEASE
+ || (model & MEMMODEL_MASK) == MEMMODEL_ACQ_REL)
{
error ("invalid memory model for %<__atomic_load%>");
return NULL_RTX;
enum memmodel model;
model = get_memmodel (CALL_EXPR_ARG (exp, 2));
- if (model != MEMMODEL_RELAXED
- && model != MEMMODEL_SEQ_CST
- && model != MEMMODEL_RELEASE)
+ if ((model & MEMMODEL_MASK) != MEMMODEL_RELAXED
+ && (model & MEMMODEL_MASK) != MEMMODEL_SEQ_CST
+ && (model & MEMMODEL_MASK) != MEMMODEL_RELEASE)
{
error ("invalid memory model for %<__atomic_store%>");
return NULL_RTX;
mem = get_builtin_sync_mem (CALL_EXPR_ARG (exp, 0), mode);
model = get_memmodel (CALL_EXPR_ARG (exp, 1));
- if (model == MEMMODEL_ACQUIRE || model == MEMMODEL_ACQ_REL)
+ if ((model & MEMMODEL_MASK) == MEMMODEL_ACQUIRE
+ || (model & MEMMODEL_MASK) == MEMMODEL_ACQ_REL)
{
error ("invalid memory model for %<__atomic_store%>");
return const0_rtx;
/* If the object has smaller alignment, the the lock free routines cannot
be used. */
if (type_align < mode_align)
- return integer_zero_node;
+ return boolean_false_node;
/* Check if a compare_and_swap pattern exists for the mode which represents
the required size. The pattern is not allowed to fail, so the existence
of the pattern indicates support is present. */
if (can_compare_and_swap_p (mode, true))
- return integer_one_node;
+ return boolean_true_node;
else
- return integer_zero_node;
+ return boolean_false_node;
}
/* Return true if the parameters to call EXP represent an object which will
}
size = fold_builtin_atomic_always_lock_free (arg0, arg1);
- if (size == integer_one_node)
+ if (size == boolean_true_node)
return const1_rtx;
return const0_rtx;
}
return NULL_TREE;
/* If it isn't always lock free, don't generate a result. */
- if (fold_builtin_atomic_always_lock_free (arg0, arg1) == integer_one_node)
- return integer_one_node;
+ if (fold_builtin_atomic_always_lock_free (arg0, arg1) == boolean_true_node)
+ return boolean_true_node;
return NULL_TREE;
}
/* If the value is known at compile time, return the RTX for it. */
size = fold_builtin_atomic_is_lock_free (arg0, arg1);
- if (size == integer_one_node)
+ if (size == boolean_true_node)
return const1_rtx;
return NULL_RTX;
set of builtins. */
if (!optimize
&& !called_as_built_in (fndecl)
- && DECL_ASSEMBLER_NAME_SET_P (fndecl)
&& fcode != BUILT_IN_ALLOCA
&& fcode != BUILT_IN_ALLOCA_WITH_ALIGN
&& fcode != BUILT_IN_FREE)
expand_stack_restore (CALL_EXPR_ARG (exp, 0));
return const0_rtx;
+ case BUILT_IN_BSWAP16:
case BUILT_IN_BSWAP32:
case BUILT_IN_BSWAP64:
- target = expand_builtin_bswap (exp, target, subtarget);
-
+ target = expand_builtin_bswap (target_mode, exp, target, subtarget);
if (target)
return target;
break;
return const0_rtx;
case BUILT_IN_INIT_TRAMPOLINE:
- return expand_builtin_init_trampoline (exp);
+ return expand_builtin_init_trampoline (exp, true);
+ case BUILT_IN_INIT_HEAP_TRAMPOLINE:
+ return expand_builtin_init_trampoline (exp, false);
case BUILT_IN_ADJUST_TRAMPOLINE:
return expand_builtin_adjust_trampoline (exp);
case BUILT_IN_STRCPY_CHK:
case BUILT_IN_STPCPY_CHK:
case BUILT_IN_STRNCPY_CHK:
+ case BUILT_IN_STPNCPY_CHK:
case BUILT_IN_STRCAT_CHK:
case BUILT_IN_STRNCAT_CHK:
case BUILT_IN_SNPRINTF_CHK:
if (width > HOST_BITS_PER_WIDE_INT)
{
hi = TREE_INT_CST_HIGH (arg);
- if (width < 2 * HOST_BITS_PER_WIDE_INT)
+ if (width < HOST_BITS_PER_DOUBLE_INT)
hi &= ~((unsigned HOST_WIDE_INT) (-1)
<< (width - HOST_BITS_PER_WIDE_INT));
}
return NULL_TREE;
}
-/* Fold function call to builtin_bswap and the long and long long
+/* Fold function call to builtin_bswap and the short, long and long long
variants. Return NULL_TREE if no simplification can be made. */
static tree
fold_builtin_bswap (tree fndecl, tree arg)
{
HOST_WIDE_INT hi, width, r_hi = 0;
unsigned HOST_WIDE_INT lo, r_lo = 0;
- tree type;
+ tree type = TREE_TYPE (TREE_TYPE (fndecl));
- type = TREE_TYPE (arg);
width = TYPE_PRECISION (type);
lo = TREE_INT_CST_LOW (arg);
hi = TREE_INT_CST_HIGH (arg);
switch (DECL_FUNCTION_CODE (fndecl))
{
+ case BUILT_IN_BSWAP16:
case BUILT_IN_BSWAP32:
case BUILT_IN_BSWAP64:
{
}
if (width < HOST_BITS_PER_WIDE_INT)
- return build_int_cst (TREE_TYPE (TREE_TYPE (fndecl)), r_lo);
+ return build_int_cst (type, r_lo);
else
- return build_int_cst_wide (TREE_TYPE (TREE_TYPE (fndecl)), r_lo, r_hi);
+ return build_int_cst_wide (type, r_lo, r_hi);
}
return NULL_TREE;
if (! operand_equal_p (TREE_OPERAND (src_base, 0),
TREE_OPERAND (dest_base, 0), 0))
return NULL_TREE;
- off = double_int_add (mem_ref_offset (src_base),
- shwi_to_double_int (src_offset));
- if (!double_int_fits_in_shwi_p (off))
+ off = mem_ref_offset (src_base) +
+ double_int::from_shwi (src_offset);
+ if (!off.fits_shwi ())
return NULL_TREE;
src_offset = off.low;
- off = double_int_add (mem_ref_offset (dest_base),
- shwi_to_double_int (dest_offset));
- if (!double_int_fits_in_shwi_p (off))
+ off = mem_ref_offset (dest_base) +
+ double_int::from_shwi (dest_offset);
+ if (!off.fits_shwi ())
return NULL_TREE;
dest_offset = off.low;
if (ranges_overlap_p (src_offset, maxsize,
CASE_FLT_FN (BUILT_IN_LLRINT):
return fold_fixed_mathfn (loc, fndecl, arg0);
+ case BUILT_IN_BSWAP16:
case BUILT_IN_BSWAP32:
case BUILT_IN_BSWAP64:
return fold_builtin_bswap (fndecl, arg0);
DECL_FUNCTION_CODE (fndecl));
case BUILT_IN_STRNCPY_CHK:
- return fold_builtin_strncpy_chk (loc, arg0, arg1, arg2, arg3, NULL_TREE);
+ case BUILT_IN_STPNCPY_CHK:
+ return fold_builtin_stxncpy_chk (loc, arg0, arg1, arg2, arg3, NULL_TREE,
+ ignore, fcode);
case BUILT_IN_STRNCAT_CHK:
return fold_builtin_strncat_chk (loc, fndecl, arg0, arg1, arg2, arg3);
if (p1 && p2)
{
const size_t r = strspn (p1, p2);
- return size_int (r);
+ return build_int_cst (size_type_node, r);
}
/* If either argument is "", return NULL_TREE. */
if (p1 && p2)
{
const size_t r = strcspn (p1, p2);
- return size_int (r);
+ return build_int_cst (size_type_node, r);
}
/* If the first argument is "", return NULL_TREE. */
tree fntype = TREE_TYPE (current_function_decl);
int nargs = call_expr_nargs (exp);
tree arg;
+ /* There is good chance the current input_location points inside the
+ definition of the va_start macro (perhaps on the token for
+ builtin) in a system header, so warnings will not be emitted.
+ Use the location in real source code. */
+ source_location current_location =
+ linemap_unwind_to_first_non_reserved_loc (line_table, input_location,
+ NULL);
if (!stdarg_p (fntype))
{
{
/* Evidently an out of date version of <stdarg.h>; can't validate
va_start's second argument, but can still work as intended. */
- warning (0, "%<__builtin_next_arg%> called without an argument");
+ warning_at (current_location,
+ OPT_Wvarargs,
+ "%<__builtin_next_arg%> called without an argument");
return true;
}
else if (nargs > 1)
argument. We just warn and set the arg to be the last
argument so that we will get wrong-code because of
it. */
- warning (0, "second parameter of %<va_start%> not last named argument");
+ warning_at (current_location,
+ OPT_Wvarargs,
+ "second parameter of %<va_start%> not last named argument");
}
/* Undefined by C99 7.15.1.4p4 (va_start):
the default argument promotions, the behavior is undefined."
*/
else if (DECL_REGISTER (arg))
- warning (0, "undefined behaviour when second parameter of "
- "%<va_start%> is declared with %<register%> storage");
+ {
+ warning_at (current_location,
+ OPT_Wvarargs,
+ "undefined behaviour when second parameter of "
+ "%<va_start%> is declared with %<register%> storage");
+ }
/* We want to verify the second parameter just once before the tree
optimizers are run and then avoid keeping it in the tree,
break;
case BUILT_IN_STRNCAT_CHK:
case BUILT_IN_STRNCPY_CHK:
+ case BUILT_IN_STPNCPY_CHK:
len = CALL_EXPR_ARG (exp, 2);
size = CALL_EXPR_ARG (exp, 3);
break;
{
bytes = compute_builtin_object_size (ptr, object_size_type);
if (double_int_fits_to_tree_p (size_type_node,
- uhwi_to_double_int (bytes)))
+ double_int::from_uhwi (bytes)))
return build_int_cstu (size_type_node, bytes);
}
else if (TREE_CODE (ptr) == SSA_NAME)
bytes = compute_builtin_object_size (ptr, object_size_type);
if (bytes != (unsigned HOST_WIDE_INT) (object_size_type < 2 ? -1 : 0)
&& double_int_fits_to_tree_p (size_type_node,
- uhwi_to_double_int (bytes)))
+ double_int::from_uhwi (bytes)))
return build_int_cstu (size_type_node, bytes);
}
return build_call_expr_loc (loc, fn, 2, dest, src);
}
-/* Fold a call to the __strncpy_chk builtin. DEST, SRC, LEN, and SIZE
+/* Fold a call to the __st{r,p}ncpy_chk builtin. DEST, SRC, LEN, and SIZE
are the arguments to the call. If MAXLEN is not NULL, it is maximum
- length passed as third argument. */
+ length passed as third argument. IGNORE is true if return value can be
+ ignored. FCODE is the BUILT_IN_* code of the builtin. */
tree
-fold_builtin_strncpy_chk (location_t loc, tree dest, tree src,
- tree len, tree size, tree maxlen)
+fold_builtin_stxncpy_chk (location_t loc, tree dest, tree src,
+ tree len, tree size, tree maxlen, bool ignore,
+ enum built_in_function fcode)
{
tree fn;
|| !validate_arg (size, INTEGER_TYPE))
return NULL_TREE;
+ if (fcode == BUILT_IN_STPNCPY_CHK && ignore)
+ {
+ /* If return value of __stpncpy_chk is ignored,
+ optimize into __strncpy_chk. */
+ fn = builtin_decl_explicit (BUILT_IN_STRNCPY_CHK);
+ if (fn)
+ return build_call_expr_loc (loc, fn, 4, dest, src, len, size);
+ }
+
if (! host_integerp (size, 1))
return NULL_TREE;
return NULL_TREE;
}
- /* If __builtin_strncpy_chk is used, assume strncpy is available. */
- fn = builtin_decl_explicit (BUILT_IN_STRNCPY);
+ /* If __builtin_st{r,p}ncpy_chk is used, assume st{r,p}ncpy is available. */
+ fn = builtin_decl_explicit (fcode == BUILT_IN_STPNCPY_CHK
+ ? BUILT_IN_STPNCPY : BUILT_IN_STRNCPY);
if (!fn)
return NULL_TREE;
case BUILT_IN_ABS:
case BUILT_IN_ALLOCA:
case BUILT_IN_ALLOCA_WITH_ALIGN:
+ case BUILT_IN_BSWAP16:
case BUILT_IN_BSWAP32:
case BUILT_IN_BSWAP64:
case BUILT_IN_CLZ:
projects / gcc.git / blobdiff