/* Utility routines for data type conversion for GCC.
- Copyright (C) 1987-2018 Free Software Foundation, Inc.
+ Copyright (C) 1987-2022 Free Software Foundation, Inc.
This file is part of GCC.
CASE_MATHFN (FABS)
CASE_MATHFN (LOGB)
#undef CASE_MATHFN
+ if (call_expr_nargs (expr) != 1
+ || !SCALAR_FLOAT_TYPE_P (TREE_TYPE (CALL_EXPR_ARG (expr, 0))))
+ break;
{
tree arg0 = strip_float_extensions (CALL_EXPR_ARG (expr, 0));
tree newtype = type;
- /* We have (outertype)sqrt((innertype)x). Choose the wider mode from
- the both as the safe type for operation. */
+ /* We have (outertype)sqrt((innertype)x). Choose the wider mode
+ from the both as the safe type for operation. */
if (TYPE_PRECISION (TREE_TYPE (arg0)) > TYPE_PRECISION (type))
newtype = TREE_TYPE (arg0);
(T1) sqrtT4 ((T4) exprT3)
, where T1 is TYPE, T2 is ITYPE, T3 is TREE_TYPE (ARG0),
- and T4 is NEWTYPE. All those types are of floating point types.
+ and T4 is NEWTYPE. All those types are of floating-point types.
T4 (NEWTYPE) should be narrower than T2 (ITYPE). This conversion
is safe only if P1 >= P2*2+2, where P1 and P2 are precisions of
T2 and T4. See the following URL for a reference:
return build1 (TREE_CODE (expr), type, arg);
}
break;
- /* Convert (outertype)((innertype0)a+(innertype1)b)
- into ((newtype)a+(newtype)b) where newtype
- is the widest mode from all of these. */
- case PLUS_EXPR:
- case MINUS_EXPR:
- case MULT_EXPR:
- case RDIV_EXPR:
- {
- tree arg0 = strip_float_extensions (TREE_OPERAND (expr, 0));
- tree arg1 = strip_float_extensions (TREE_OPERAND (expr, 1));
-
- if (FLOAT_TYPE_P (TREE_TYPE (arg0))
- && FLOAT_TYPE_P (TREE_TYPE (arg1))
- && DECIMAL_FLOAT_TYPE_P (itype) == DECIMAL_FLOAT_TYPE_P (type))
- {
- tree newtype = type;
-
- if (TYPE_MODE (TREE_TYPE (arg0)) == SDmode
- || TYPE_MODE (TREE_TYPE (arg1)) == SDmode
- || TYPE_MODE (type) == SDmode)
- newtype = dfloat32_type_node;
- if (TYPE_MODE (TREE_TYPE (arg0)) == DDmode
- || TYPE_MODE (TREE_TYPE (arg1)) == DDmode
- || TYPE_MODE (type) == DDmode)
- newtype = dfloat64_type_node;
- if (TYPE_MODE (TREE_TYPE (arg0)) == TDmode
- || TYPE_MODE (TREE_TYPE (arg1)) == TDmode
- || TYPE_MODE (type) == TDmode)
- newtype = dfloat128_type_node;
- if (newtype == dfloat32_type_node
- || newtype == dfloat64_type_node
- || newtype == dfloat128_type_node)
- {
- expr = build2 (TREE_CODE (expr), newtype,
- convert_to_real_1 (newtype, arg0,
- fold_p),
- convert_to_real_1 (newtype, arg1,
- fold_p));
- if (newtype == type)
- return expr;
- break;
- }
-
- if (TYPE_PRECISION (TREE_TYPE (arg0)) > TYPE_PRECISION (newtype))
- newtype = TREE_TYPE (arg0);
- if (TYPE_PRECISION (TREE_TYPE (arg1)) > TYPE_PRECISION (newtype))
- newtype = TREE_TYPE (arg1);
- /* Sometimes this transformation is safe (cannot
- change results through affecting double rounding
- cases) and sometimes it is not. If NEWTYPE is
- wider than TYPE, e.g. (float)((long double)double
- + (long double)double) converted to
- (float)(double + double), the transformation is
- unsafe regardless of the details of the types
- involved; double rounding can arise if the result
- of NEWTYPE arithmetic is a NEWTYPE value half way
- between two representable TYPE values but the
- exact value is sufficiently different (in the
- right direction) for this difference to be
- visible in ITYPE arithmetic. If NEWTYPE is the
- same as TYPE, however, the transformation may be
- safe depending on the types involved: it is safe
- if the ITYPE has strictly more than twice as many
- mantissa bits as TYPE, can represent infinities
- and NaNs if the TYPE can, and has sufficient
- exponent range for the product or ratio of two
- values representable in the TYPE to be within the
- range of normal values of ITYPE. */
- if (TYPE_PRECISION (newtype) < TYPE_PRECISION (itype)
- && (flag_unsafe_math_optimizations
- || (TYPE_PRECISION (newtype) == TYPE_PRECISION (type)
- && real_can_shorten_arithmetic (TYPE_MODE (itype),
- TYPE_MODE (type))
- && !excess_precision_type (newtype))))
- {
- expr = build2 (TREE_CODE (expr), newtype,
- convert_to_real_1 (newtype, arg0,
- fold_p),
- convert_to_real_1 (newtype, arg1,
- fold_p));
- if (newtype == type)
- return expr;
- }
- }
- }
- break;
default:
break;
}
case POINTER_TYPE:
case REFERENCE_TYPE:
- error ("pointer value used where a floating point value was expected");
+ error ("pointer value used where a floating-point was expected");
return convert_to_real_1 (type, integer_zero_node, fold_p);
default:
- error ("aggregate value used where a float was expected");
+ error ("aggregate value used where a floating-point was expected");
return convert_to_real_1 (type, integer_zero_node, fold_p);
}
}
CASE_FLT_FN (BUILT_IN_CEIL):
CASE_FLT_FN_FLOATN_NX (BUILT_IN_CEIL):
/* Only convert in ISO C99 mode. */
- if (!targetm.libc_has_function (function_c99_misc))
+ if (!targetm.libc_has_function (function_c99_misc, intype))
break;
if (outprec < TYPE_PRECISION (integer_type_node)
|| (outprec == TYPE_PRECISION (integer_type_node)
CASE_FLT_FN (BUILT_IN_FLOOR):
CASE_FLT_FN_FLOATN_NX (BUILT_IN_FLOOR):
/* Only convert in ISO C99 mode. */
- if (!targetm.libc_has_function (function_c99_misc))
+ if (!targetm.libc_has_function (function_c99_misc, intype))
break;
if (outprec < TYPE_PRECISION (integer_type_node)
|| (outprec == TYPE_PRECISION (integer_type_node)
CASE_FLT_FN (BUILT_IN_ROUND):
CASE_FLT_FN_FLOATN_NX (BUILT_IN_ROUND):
/* Only convert in ISO C99 mode and with -fno-math-errno. */
- if (!targetm.libc_has_function (function_c99_misc) || flag_errno_math)
+ if (!targetm.libc_has_function (function_c99_misc, intype)
+ || flag_errno_math)
break;
if (outprec < TYPE_PRECISION (integer_type_node)
|| (outprec == TYPE_PRECISION (integer_type_node)
CASE_FLT_FN (BUILT_IN_RINT):
CASE_FLT_FN_FLOATN_NX (BUILT_IN_RINT):
/* Only convert in ISO C99 mode and with -fno-math-errno. */
- if (!targetm.libc_has_function (function_c99_misc) || flag_errno_math)
+ if (!targetm.libc_has_function (function_c99_misc, intype)
+ || flag_errno_math)
break;
if (outprec < TYPE_PRECISION (integer_type_node)
|| (outprec == TYPE_PRECISION (integer_type_node)
CASE_FLT_FN (BUILT_IN_TRUNC):
CASE_FLT_FN_FLOATN_NX (BUILT_IN_TRUNC):
- return convert_to_integer_1 (type, CALL_EXPR_ARG (s_expr, 0), dofold);
+ if (call_expr_nargs (s_expr) != 1
+ || !SCALAR_FLOAT_TYPE_P (TREE_TYPE (CALL_EXPR_ARG (s_expr, 0))))
+ break;
+ return convert_to_integer_1 (type, CALL_EXPR_ARG (s_expr, 0),
+ dofold);
default:
break;
}
- if (fn)
- {
+ if (fn
+ && call_expr_nargs (s_expr) == 1
+ && SCALAR_FLOAT_TYPE_P (TREE_TYPE (CALL_EXPR_ARG (s_expr, 0))))
+ {
tree newexpr = build_call_expr (fn, 1, CALL_EXPR_ARG (s_expr, 0));
return convert_to_integer_1 (type, newexpr, dofold);
}
break;
}
- if (fn)
+ if (fn
+ && call_expr_nargs (s_expr) == 1
+ && SCALAR_FLOAT_TYPE_P (TREE_TYPE (CALL_EXPR_ARG (s_expr, 0))))
{
tree newexpr = build_call_expr (fn, 1, CALL_EXPR_ARG (s_expr, 0));
return convert_to_integer_1 (type, newexpr, dofold);
&& POINTER_TYPE_P (TREE_TYPE (TREE_OPERAND (arg1, 0))))
break;
- if (outprec >= BITS_PER_WORD
- || targetm.truly_noop_truncation (outprec, inprec)
- || inprec > TYPE_PRECISION (TREE_TYPE (arg0))
- || inprec > TYPE_PRECISION (TREE_TYPE (arg1)))
- {
- tree tem = do_narrow (loc, ex_form, type, arg0, arg1,
- expr, inprec, outprec, dofold);
- if (tem)
- return tem;
- }
+ tree tem = do_narrow (loc, ex_form, type, arg0, arg1,
+ expr, inprec, outprec, dofold);
+ if (tem)
+ return tem;
}
break;
case VECTOR_TYPE:
if (!tree_int_cst_equal (TYPE_SIZE (type), TYPE_SIZE (TREE_TYPE (expr))))
{
- error ("can%'t convert a vector of type %qT"
+ error ("cannot convert a vector of type %qT"
" to type %qT which has different size",
TREE_TYPE (expr), type);
return error_mark_node;
case VECTOR_TYPE:
if (!tree_int_cst_equal (TYPE_SIZE (type), TYPE_SIZE (TREE_TYPE (expr))))
{
- error ("can%'t convert a value of type %qT"
+ error ("cannot convert a value of type %qT"
" to vector type %qT which has different size",
TREE_TYPE (expr), type);
return error_mark_node;
return build1 (VIEW_CONVERT_EXPR, type, expr);
default:
- error ("can%'t convert value to a vector");
+ error ("cannot convert value to a vector");
return error_mark_node;
}
}
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