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re PR target/30652 (SSE expansion is missing for isinf() and other fpclassify functions)

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PR target/30652

	* builtins.c (expand_builtin_interclass_mathfn): Provide a generic
	transformation for builtin ISNORMAL.
	(expand_builtin): Handle BUILT_IN_ISNORMAL.
	* builtins.def (BUILT_IN_ISNORMAL): New.
	* doc/extend.texi: Document isnormal.

testsuite:
	* gcc.dg/pr28796-2.c: Add more cases.

From-SVN: r126726
This commit is contained in:
Kaveh R. Ghazi 2007-07-18 17:51:13 +00:00 committed by Kaveh Ghazi
parent 0c8d3c2b08
commit 8a91c45bbf
6 changed files with 70 additions and 11 deletions
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10
gcc/ChangeLog
View File

@ -1,3 +1,13 @@
2007-07-18 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
PR target/30652
* builtins.c (expand_builtin_interclass_mathfn): Provide a generic
transformation for builtin ISNORMAL.
(expand_builtin): Handle BUILT_IN_ISNORMAL.
* builtins.def (BUILT_IN_ISNORMAL): New.
* doc/extend.texi: Document isnormal.
2007-07-18 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
PR target/30652

24
gcc/builtins.c
View File

@ -2230,6 +2230,7 @@ expand_builtin_interclass_mathfn (tree exp, rtx target, rtx subtarget)
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). */
@ -2316,6 +2317,28 @@ expand_builtin_interclass_mathfn (tree exp, rtx target, rtx subtarget)
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;
}
@ -6173,6 +6196,7 @@ expand_builtin (tree exp, rtx target, rtx subtarget, enum machine_mode mode,
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;

1
gcc/builtins.def
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@ -667,6 +667,7 @@ DEF_EXT_LIB_BUILTIN (BUILT_IN_ISNANL, "isnanl", BT_FN_INT_LONGDOUBLE, ATTR_CO
DEF_EXT_LIB_BUILTIN (BUILT_IN_ISNAND32, "isnand32", BT_FN_INT_DFLOAT32, ATTR_CONST_NOTHROW_LIST)
DEF_EXT_LIB_BUILTIN (BUILT_IN_ISNAND64, "isnand64", BT_FN_INT_DFLOAT64, ATTR_CONST_NOTHROW_LIST)
DEF_EXT_LIB_BUILTIN (BUILT_IN_ISNAND128, "isnand128", BT_FN_INT_DFLOAT128, ATTR_CONST_NOTHROW_LIST)
DEF_GCC_BUILTIN (BUILT_IN_ISNORMAL, "isnormal", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_TYPEGENERIC)
DEF_GCC_BUILTIN (BUILT_IN_ISGREATER, "isgreater", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_TYPEGENERIC)
DEF_GCC_BUILTIN (BUILT_IN_ISGREATEREQUAL, "isgreaterequal", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_TYPEGENERIC)
DEF_GCC_BUILTIN (BUILT_IN_ISLESS, "isless", BT_FN_INT_VAR, ATTR_CONST_NOTHROW_TYPEGENERIC)

5
gcc/doc/extend.texi
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@ -5438,6 +5438,7 @@ should be called and the @var{flag} argument passed to it.
@section Other built-in functions provided by GCC
@cindex built-in functions
@findex __builtin_isfinite
@findex __builtin_isnormal
@findex __builtin_isgreater
@findex __builtin_isgreaterequal
@findex __builtin_isless
@ -5966,8 +5967,8 @@ the same names as the standard macros ( @code{isgreater},
@code{islessgreater}, and @code{isunordered}) , with @code{__builtin_}
prefixed. We intend for a library implementor to be able to simply
@code{#define} each standard macro to its built-in equivalent.
In the same fashion, GCC provides an @code{isfinite} built-in used
with @code{__builtin_} prefixed.
In the same fashion, GCC provides @code{isfinite} and @code{isnormal}
built-ins used with @code{__builtin_} prefixed.
@deftypefn {Built-in Function} int __builtin_types_compatible_p (@var{type1}, @var{type2})

4
gcc/testsuite/ChangeLog
View File

@ -1,3 +1,7 @@
2007-07-18 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* gcc.dg/pr28796-2.c: Add more cases.
2007-07-18 Kaveh R. Ghazi <ghazi@caip.rutgers.edu>
* gcc.dg/pr28796-1.c: Add more cases.

37
gcc/testsuite/gcc.dg/pr28796-2.c
View File

@ -6,7 +6,8 @@ extern void abort (void);
void __attribute__ ((__noinline__))
foo_1 (float f, double d, long double ld,
int res_unord, int res_isnan, int res_isinf, int res_isfin)
int res_unord, int res_isnan, int res_isinf,
int res_isfin, int res_isnorm)
{
if (__builtin_isunordered (f, 0) != res_unord)
abort ();
@ -43,6 +44,13 @@ foo_1 (float f, double d, long double ld,
if (__builtin_isinfl (ld) != res_isinf)
abort ();
if (__builtin_isnormal (f) != res_isnorm)
abort ();
if (__builtin_isnormal (d) != res_isnorm)
abort ();
if (__builtin_isnormal (ld) != res_isnorm)
abort ();
if (__builtin_isfinite (f) != res_isfin)
abort ();
if (__builtin_isfinite (d) != res_isfin)
@ -64,10 +72,12 @@ foo_1 (float f, double d, long double ld,
void __attribute__ ((__noinline__))
foo (float f, double d, long double ld,
int res_unord, int res_isnan, int res_isinf, int res_isfin)
int res_unord, int res_isnan, int res_isinf,
int res_isfin, int res_isnorm)
{
foo_1 (f, d, ld, res_unord, res_isnan, res_isinf, res_isfin);
foo_1 (-f, -d, -ld, res_unord, res_isnan, res_isinf, res_isfin);
foo_1 (f, d, ld, res_unord, res_isnan, res_isinf, res_isfin, res_isnorm);
/* Try all values negative as well. */
foo_1 (-f, -d, -ld, res_unord, res_isnan, res_isinf, res_isfin, res_isnorm);
}
int main()
@ -77,19 +87,28 @@ int main()
long double ld;
f = __builtin_nanf(""); d = __builtin_nan(""); ld = __builtin_nanl("");
foo(f, d, ld, /*unord=*/ 1, /*isnan=*/ 1, /*isinf=*/ 0, /*isfin=*/ 0);
foo(f, d, ld, /*unord=*/ 1, /*isnan=*/ 1, /*isinf=*/ 0, /*isfin=*/ 0, /*isnorm=*/ 0);
f = __builtin_inff(); d = __builtin_inf(); ld = __builtin_infl();
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 1, /*isfin=*/ 0);
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 1, /*isfin=*/ 0, /*isnorm=*/ 0);
f = 0; d = 0; ld = 0;
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1);
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1, /*isnorm=*/ 0);
f = 1; d = 1; ld = 1;
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1, /*isnorm=*/ 1);
f = __FLT_MIN__; d = __DBL_MIN__; ld = __LDBL_MIN__;
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1);
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1, /*isnorm=*/ 1);
f = __FLT_MIN__/2; d = __DBL_MIN__/2; ld = __LDBL_MIN__/2;
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1, /*isnorm=*/ 0);
f = __FLT_MAX__; d = __DBL_MAX__; ld = __LDBL_MAX__;
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1);
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 0, /*isfin=*/ 1, /*isnorm=*/ 1);
f = __FLT_MAX__*2; d = __DBL_MAX__*2; ld = __LDBL_MAX__*2;
foo(f, d, ld, /*unord=*/ 0, /*isnan=*/ 0, /*isinf=*/ 1, /*isfin=*/ 0, /*isnorm=*/ 0);
return 0;
}