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Implement more TFmode builtins #121

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Implement more TFmode builtins #121

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1a0c4b5
Implement more TFmode builtins
fxcoudert Oct 27, 2023
d34c748
Fold __builtin_fabsq()
fxcoudert Oct 29, 2023
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66 changes: 62 additions & 4 deletions gcc/config/aarch64/aarch64-builtins.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -47,6 +47,7 @@
#include "stringpool.h"
#include "attribs.h"
#include "gimple-fold.h"
#include "calls.h"

#define v8qi_UP E_V8QImode
#define v8di_UP E_V8DImode
Expand Down Expand Up @@ -810,8 +811,12 @@ enum aarch64_builtins
AARCH64_RBITLL,
/* OS-specific */
AARCH64_BUILTIN_CFSTRING,
AARCH64_BUILTIN_COPYSIGNQ,
AARCH64_BUILTIN_FABSQ,
AARCH64_BUILTIN_HUGE_VALQ,
AARCH64_BUILTIN_INFQ,
AARCH64_BUILTIN_NANQ,
AARCH64_BUILTIN_NANSQ,
AARCH64_BUILTIN_MAX
};

Expand Down Expand Up @@ -956,11 +961,11 @@ tree aarch64_float128_ptr_type_node = NULL_TREE;
attributes. */
static tree
aarch64_general_add_builtin (const char *name, tree type, unsigned int code,
tree attrs = NULL_TREE)
tree attrs = NULL_TREE, const char *library_name = NULL)
{
code = (code << AARCH64_BUILTIN_SHIFT) | AARCH64_BUILTIN_GENERAL;
return add_builtin_function (name, type, code, BUILT_IN_MD,
NULL, attrs);
library_name, attrs);
}

static tree
Expand Down Expand Up @@ -1730,7 +1735,7 @@ aarch64_init_bf16_types (void)
static void
aarch64_init_float128_types (void)
{
tree ftype, fndecl;
tree ftype, fndecl, const_string_type;

/* The __float128 type. The node has already been created as
_Float128, so for C we only need to register the __float128 name for
Expand All @@ -1748,6 +1753,7 @@ aarch64_init_float128_types (void)

aarch64_float128_ptr_type_node = build_pointer_type (float128t_type_node);

/* TFmode support builtins. */
ftype = build_function_type_list (float128t_type_node, NULL_TREE);

fndecl = aarch64_general_add_builtin ("__builtin_huge_valq", ftype,
Expand All @@ -1756,9 +1762,43 @@ aarch64_init_float128_types (void)
aarch64_builtin_decls[AARCH64_BUILTIN_HUGE_VALQ] = fndecl;

fndecl = aarch64_general_add_builtin ("__builtin_infq", ftype,
AARCH64_BUILTIN_INFQ);
AARCH64_BUILTIN_INFQ, NULL_TREE,
"infq");
TREE_READONLY (fndecl) = 1;
aarch64_builtin_decls[AARCH64_BUILTIN_INFQ] = fndecl;

const_string_type
= build_pointer_type (build_qualified_type (char_type_node, TYPE_QUAL_CONST));
ftype = build_function_type_list (float128t_type_node, const_string_type,
NULL_TREE);

fndecl = aarch64_general_add_builtin ("__builtin_nanq", ftype,
AARCH64_BUILTIN_NANQ, NULL_TREE,
"nanq");
TREE_READONLY (fndecl) = 1;
aarch64_builtin_decls[AARCH64_BUILTIN_NANQ] = fndecl;

fndecl = aarch64_general_add_builtin ("__builtin_nansq", ftype,
AARCH64_BUILTIN_NANSQ, NULL_TREE,
"nansq");
TREE_READONLY (fndecl) = 1;
aarch64_builtin_decls[AARCH64_BUILTIN_NANSQ] = fndecl;

ftype = build_function_type_list (float128t_type_node, float128t_type_node,
NULL_TREE);
fndecl = aarch64_general_add_builtin ("__builtin_fabsq", ftype,
AARCH64_BUILTIN_FABSQ, NULL_TREE,
"fabsq");
TREE_READONLY (fndecl) = 1;
aarch64_builtin_decls[AARCH64_BUILTIN_FABSQ] = fndecl;

ftype = build_function_type_list (float128t_type_node, float128t_type_node,
float128t_type_node, NULL_TREE);
fndecl = aarch64_general_add_builtin ("__builtin_copysignq", ftype,
AARCH64_BUILTIN_COPYSIGNQ, NULL_TREE,
"copysignq");
TREE_READONLY (fndecl) = 1;
aarch64_builtin_decls[AARCH64_BUILTIN_COPYSIGNQ] = fndecl;
}


Expand Down Expand Up @@ -2885,6 +2925,9 @@ aarch64_general_expand_builtin (unsigned int fcode, tree exp, rtx target,
case AARCH64_BUILTIN_RNG_RNDR:
case AARCH64_BUILTIN_RNG_RNDRRS:
return aarch64_expand_rng_builtin (exp, target, fcode, ignore);

case AARCH64_BUILTIN_COPYSIGNQ:
return expand_call (exp, target, ignore);
}

if (fcode >= AARCH64_SIMD_BUILTIN_BASE && fcode <= AARCH64_SIMD_BUILTIN_MAX)
Expand Down Expand Up @@ -2997,6 +3040,21 @@ aarch64_general_fold_builtin (unsigned int fcode, tree type,
return build_real (type, inf);
}
break;
case AARCH64_BUILTIN_NANQ:
case AARCH64_BUILTIN_NANSQ:
{
const char *str = c_getstr (*args);
int quiet = (fcode == AARCH64_BUILTIN_NANQ);
REAL_VALUE_TYPE nan;

gcc_assert (n_args == 1);
if (str && real_nan (&nan, str, quiet, TYPE_MODE (type)))
return build_real (type, nan);
return NULL_TREE;
}
case AARCH64_BUILTIN_FABSQ:
gcc_assert (n_args == 1);
return fold_build1 (ABS_EXPR, type, args[0]);
default:
break;
}
Expand Down