[PATCH] Add _Float<N>/_Float<N>X rounding built-ins & improve gimple optimization of _Float<N>/_Float<N>X built-in functions
Michael Meissner
meissner@linux.vnet.ibm.com
Fri Nov 17 05:33:00 GMT 2017
This patch is an enhancement of a previous page that never got approved.
https://gcc.gnu.org/ml/gcc-patches/2017-10/threads.html#02124
In the original patch, I added support to the machine independent
infrastructure to support the rounding built-in functions for _Float<N> and
_Float<N>X types (i.e. roundf128, ceilf128, etc.). I also added PowerPC ISA
3.0 support to generate these built-in functions.
In addition to the previous changes, this patch now adds more optimizations for
_Float<N> and _Float<N>X types in match.pd.
I modified the gencfn generation to dump out <BUILTIN>_ALL case statements and
match.pd operators in addition to <BUILTIN> that puts out the normal float,
double, and long double variants, and <BUILTIN>_FN that puts out the _Float<N>
and _Float<N>X variants. The <BUILTIN>_ALL version puts out the built-in
functions that include float, double, long double, and all of the _Float<N> and
_Float<N>X versions.
I also modified match.pd where possible to use COPYSIGN_ALL, SQRT_ALL,
FMIN_ALL, FMAX_ALL, TRUNC_ALL, FLOOR_ALL, CEIL_ALL, ROUND_ALL, NEARBYINT_ALL,
and RINT_ALL instead of the normal operator lists. Sometimes this wasn't
possible (for example, we don't currently have _Float<N> pow support, so we
can't optimize powf128 (x, 0.5q) into sqrtf128 (x).
I added PowerPC tests for many of the optimizations when the compiler is
targeting ISA 3.0 (power9).
I checked this on an x86-64 system and little endian power8 system, doing a
bootstrap build and running make check. There were no regresions. Can I check
this patch into the trunk?
[gcc]
2017-11-16 Michael Meissner <meissner@linux.vnet.ibm.com>
* builtins.def: (_Float<N> and _Float<N>X BUILT_IN_CEIL): Add
_Float<N> and _Float<N>X variants for rounding built-in
functions.
(_Float<N> and _Float<N>X BUILT_IN_FLOOR): Likewise.
(_Float<N> and _Float<N>X BUILT_IN_NEARBYINT): Likewise.
(_Float<N> and _Float<N>X BUILT_IN_RINT): Likewise.
(_Float<N> and _Float<N>X BUILT_IN_ROUND): Likewise.
(_Float<N> and _Float<N>X BUILT_IN_TRUNC): Likewise.
* builtins.c (mathfn_built_in_2): Likewise.
* internal-fn.def (CEIL): Likewise.
(FLOOR): Likewise.
(NEARBYINT): Likewise.
(RINT): Likewise.
(ROUND): Likewise.
(TRUNC): Likewise.
* convert.c (convert_to_integer_1): Likewise.
* fold-const.c (tree_call_nonnegative_warnv_p): Likewise.
(integer_valued_real_call_p): Likewise.
* fold-const-call.c (fold_const_call_ss): Likewise.
* gencfn-macros.c (print_case_cfn): Change CFN and operator
printers to take a const char * suffix instead of a bool.
(print_define_operator_list): Likewise.
(fltall_suffixes): New list of suffixes, that include the
traditional suffixes as well as all of the _Float<N> and
_Float<N>X suffixes.
(main): For _Float<N> and _Float<N>X functions, emit both
<name>_FN and <name>_ALL variants. The <macro>_FN variant only
has the _Float<N> and _Float<N>X case names or operators. The
<name>_ALL variant has both the traditional and the
_Float<N>/_Float<N>X case names or operators.
* match.pd (COPYSIGN optimizations): Provide optimizations for
_Float<N> and _Float<N>X types where possible.
(MIN/MAX optimizations): Likewise.
(sqrt optimizations): Likewise.
(rounding optimizations): Likewise.
* config/rs6000/rs6000.md (floor<mode>2): Add support for IEEE
128-bit round to integer instructions.
(ceil<mode>2): Likewise.
(btrunc<mode>2): Likewise.
(round<mode>2): Likewise.
[gcc/c]
2017-11-16 Michael Meissner <meissner@linux.vnet.ibm.com>
* c-decl.c (header_for_builtin_fn): Add integer rounding _Float<N>
and _Float<N>X built-in functions.
[gcc/testsuite]
2017-11-16 Michael Meissner <meissner@linux.vnet.ibm.com>
* gcc.target/powerpc/float128-hw2.c: Add tests for ceilf128,
floorf128, truncf128, and roundf128.
* gcc.target/powerpc/float128-hw5.c: New tests for _Float128
optimizations added in match.pd.
* gcc.target/powerpc/float128-hw6.c: Likewise.
* gcc.target/powerpc/float128-hw7.c: Likewise.
* gcc.target/powerpc/float128-hw8.c: Likewise.
* gcc.target/powerpc/float128-hw9.c: Likewise.
* gcc.target/powerpc/float128-hw10.c: Likewise.
--
Michael Meissner, IBM
IBM, M/S 2506R, 550 King Street, Littleton, MA 01460-6245, USA
email: meissner@linux.vnet.ibm.com, phone: +1 (978) 899-4797
-------------- next part --------------
Index: gcc/builtins.def
===================================================================
--- gcc/builtins.def (revision 254846)
+++ gcc/builtins.def (working copy)
@@ -343,6 +343,9 @@ DEF_C99_BUILTIN (BUILT_IN_CBRTL,
DEF_LIB_BUILTIN (BUILT_IN_CEIL, "ceil", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_C90RES_BUILTIN (BUILT_IN_CEILF, "ceilf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_C90RES_BUILTIN (BUILT_IN_CEILL, "ceill", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#define CEIL_TYPE(F) BT_FN_##F##_##F
+DEF_EXT_LIB_FLOATN_NX_BUILTINS (BUILT_IN_CEIL, "ceil", CEIL_TYPE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#undef CEIL_TYPE
DEF_C99_BUILTIN (BUILT_IN_COPYSIGN, "copysign", BT_FN_DOUBLE_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_COPYSIGNF, "copysignf", BT_FN_FLOAT_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_COPYSIGNL, "copysignl", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
@@ -402,6 +405,9 @@ DEF_C99_BUILTIN (BUILT_IN_FEUPDAT
DEF_LIB_BUILTIN (BUILT_IN_FLOOR, "floor", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_C90RES_BUILTIN (BUILT_IN_FLOORF, "floorf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_C90RES_BUILTIN (BUILT_IN_FLOORL, "floorl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#define FLOOR_TYPE(F) BT_FN_##F##_##F
+DEF_EXT_LIB_FLOATN_NX_BUILTINS (BUILT_IN_FLOOR, "floor", FLOOR_TYPE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#undef FLOOR_TYPE
DEF_C99_BUILTIN (BUILT_IN_FMA, "fma", BT_FN_DOUBLE_DOUBLE_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING)
DEF_C99_BUILTIN (BUILT_IN_FMAF, "fmaf", BT_FN_FLOAT_FLOAT_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING)
DEF_C99_BUILTIN (BUILT_IN_FMAL, "fmal", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
@@ -539,6 +545,9 @@ DEF_GCC_FLOATN_NX_BUILTINS (BUILT_IN_NAN
DEF_C99_BUILTIN (BUILT_IN_NEARBYINT, "nearbyint", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_NEARBYINTF, "nearbyintf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_NEARBYINTL, "nearbyintl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#define NEARBYINT_TYPE(F) BT_FN_##F##_##F
+DEF_EXT_LIB_FLOATN_NX_BUILTINS (BUILT_IN_NEARBYINT, "nearbyint", NEARBYINT_TYPE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#undef NEARBYINT_TYPE
DEF_C99_BUILTIN (BUILT_IN_NEXTAFTER, "nextafter", BT_FN_DOUBLE_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_C99_BUILTIN (BUILT_IN_NEXTAFTERF, "nextafterf", BT_FN_FLOAT_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_C99_BUILTIN (BUILT_IN_NEXTAFTERL, "nextafterl", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
@@ -563,9 +572,15 @@ DEF_C99_BUILTIN (BUILT_IN_REMQUOL
DEF_C99_BUILTIN (BUILT_IN_RINT, "rint", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING)
DEF_C99_BUILTIN (BUILT_IN_RINTF, "rintf", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING)
DEF_C99_BUILTIN (BUILT_IN_RINTL, "rintl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING)
+#define RINT_TYPE(F) BT_FN_##F##_##F
+DEF_EXT_LIB_FLOATN_NX_BUILTINS (BUILT_IN_RINT, "rint", RINT_TYPE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#undef RINT_TYPE
DEF_C99_BUILTIN (BUILT_IN_ROUND, "round", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_ROUNDF, "roundf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_ROUNDL, "roundl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#define ROUND_TYPE(F) BT_FN_##F##_##F
+DEF_EXT_LIB_FLOATN_NX_BUILTINS (BUILT_IN_ROUND, "round", ROUND_TYPE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#undef ROUND_TYPE
DEF_EXT_LIB_BUILTIN (BUILT_IN_SCALB, "scalb", BT_FN_DOUBLE_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_EXT_LIB_BUILTIN (BUILT_IN_SCALBF, "scalbf", BT_FN_FLOAT_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_EXT_LIB_BUILTIN (BUILT_IN_SCALBL, "scalbl", BT_FN_LONGDOUBLE_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
@@ -611,6 +626,9 @@ DEF_C99_BUILTIN (BUILT_IN_TGAMMAL
DEF_C99_BUILTIN (BUILT_IN_TRUNC, "trunc", BT_FN_DOUBLE_DOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_TRUNCF, "truncf", BT_FN_FLOAT_FLOAT, ATTR_CONST_NOTHROW_LEAF_LIST)
DEF_C99_BUILTIN (BUILT_IN_TRUNCL, "truncl", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#define TRUNC_TYPE(F) BT_FN_##F##_##F
+DEF_EXT_LIB_FLOATN_NX_BUILTINS (BUILT_IN_TRUNC, "trunc", TRUNC_TYPE, ATTR_CONST_NOTHROW_LEAF_LIST)
+#undef TRUNC_TYPE
DEF_EXT_LIB_BUILTIN (BUILT_IN_Y0, "y0", BT_FN_DOUBLE_DOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_EXT_LIB_BUILTIN (BUILT_IN_Y0F, "y0f", BT_FN_FLOAT_FLOAT, ATTR_MATHFN_FPROUNDING_ERRNO)
DEF_EXT_LIB_BUILTIN (BUILT_IN_Y0L, "y0l", BT_FN_LONGDOUBLE_LONGDOUBLE, ATTR_MATHFN_FPROUNDING_ERRNO)
Index: gcc/builtins.c
===================================================================
--- gcc/builtins.c (revision 254846)
+++ gcc/builtins.c (working copy)
@@ -1872,7 +1872,7 @@ mathfn_built_in_2 (tree type, combined_f
CASE_MATHFN (ATAN2)
CASE_MATHFN (ATANH)
CASE_MATHFN (CBRT)
- CASE_MATHFN (CEIL)
+ CASE_MATHFN_FLOATN (CEIL)
CASE_MATHFN (CEXPI)
CASE_MATHFN_FLOATN (COPYSIGN)
CASE_MATHFN (COS)
@@ -1886,7 +1886,7 @@ mathfn_built_in_2 (tree type, combined_f
CASE_MATHFN (EXPM1)
CASE_MATHFN (FABS)
CASE_MATHFN (FDIM)
- CASE_MATHFN (FLOOR)
+ CASE_MATHFN_FLOATN (FLOOR)
CASE_MATHFN_FLOATN (FMA)
CASE_MATHFN_FLOATN (FMAX)
CASE_MATHFN_FLOATN (FMIN)
@@ -1925,7 +1925,7 @@ mathfn_built_in_2 (tree type, combined_f
CASE_MATHFN (MODF)
CASE_MATHFN (NAN)
CASE_MATHFN (NANS)
- CASE_MATHFN (NEARBYINT)
+ CASE_MATHFN_FLOATN (NEARBYINT)
CASE_MATHFN (NEXTAFTER)
CASE_MATHFN (NEXTTOWARD)
CASE_MATHFN (POW)
@@ -1933,8 +1933,8 @@ mathfn_built_in_2 (tree type, combined_f
CASE_MATHFN (POW10)
CASE_MATHFN (REMAINDER)
CASE_MATHFN (REMQUO)
- CASE_MATHFN (RINT)
- CASE_MATHFN (ROUND)
+ CASE_MATHFN_FLOATN (RINT)
+ CASE_MATHFN_FLOATN (ROUND)
CASE_MATHFN (SCALB)
CASE_MATHFN (SCALBLN)
CASE_MATHFN (SCALBN)
@@ -1947,7 +1947,7 @@ mathfn_built_in_2 (tree type, combined_f
CASE_MATHFN (TAN)
CASE_MATHFN (TANH)
CASE_MATHFN (TGAMMA)
- CASE_MATHFN (TRUNC)
+ CASE_MATHFN_FLOATN (TRUNC)
CASE_MATHFN (Y0)
CASE_MATHFN (Y1)
CASE_MATHFN (YN)
Index: gcc/internal-fn.def
===================================================================
--- gcc/internal-fn.def (revision 254846)
+++ gcc/internal-fn.def (working copy)
@@ -118,12 +118,12 @@ DEF_INTERNAL_FLT_FLOATN_FN (SQRT, ECF_CO
DEF_INTERNAL_FLT_FN (TAN, ECF_CONST, tan, unary)
/* FP rounding. */
-DEF_INTERNAL_FLT_FN (CEIL, ECF_CONST, ceil, unary)
-DEF_INTERNAL_FLT_FN (FLOOR, ECF_CONST, floor, unary)
-DEF_INTERNAL_FLT_FN (NEARBYINT, ECF_CONST, nearbyint, unary)
-DEF_INTERNAL_FLT_FN (RINT, ECF_CONST, rint, unary)
-DEF_INTERNAL_FLT_FN (ROUND, ECF_CONST, round, unary)
-DEF_INTERNAL_FLT_FN (TRUNC, ECF_CONST, btrunc, unary)
+DEF_INTERNAL_FLT_FLOATN_FN (CEIL, ECF_CONST, ceil, unary)
+DEF_INTERNAL_FLT_FLOATN_FN (FLOOR, ECF_CONST, floor, unary)
+DEF_INTERNAL_FLT_FLOATN_FN (NEARBYINT, ECF_CONST, nearbyint, unary)
+DEF_INTERNAL_FLT_FLOATN_FN (RINT, ECF_CONST, rint, unary)
+DEF_INTERNAL_FLT_FLOATN_FN (ROUND, ECF_CONST, round, unary)
+DEF_INTERNAL_FLT_FLOATN_FN (TRUNC, ECF_CONST, btrunc, unary)
/* Binary math functions. */
DEF_INTERNAL_FLT_FN (ATAN2, ECF_CONST, atan2, binary)
Index: gcc/convert.c
===================================================================
--- gcc/convert.c (revision 254846)
+++ gcc/convert.c (working copy)
@@ -554,6 +554,7 @@ convert_to_integer_1 (tree type, tree ex
switch (fcode)
{
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))
break;
@@ -570,6 +571,7 @@ convert_to_integer_1 (tree type, tree ex
break;
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))
break;
@@ -586,6 +588,7 @@ convert_to_integer_1 (tree type, tree ex
break;
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)
break;
@@ -602,11 +605,13 @@ convert_to_integer_1 (tree type, tree ex
break;
CASE_FLT_FN (BUILT_IN_NEARBYINT):
+ CASE_FLT_FN_FLOATN_NX (BUILT_IN_NEARBYINT):
/* Only convert nearbyint* if we can ignore math exceptions. */
if (flag_trapping_math)
break;
gcc_fallthrough ();
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)
break;
@@ -623,6 +628,7 @@ convert_to_integer_1 (tree type, tree ex
break;
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);
default:
Index: gcc/fold-const.c
===================================================================
--- gcc/fold-const.c (revision 254846)
+++ gcc/fold-const.c (working copy)
@@ -12784,9 +12784,11 @@ tree_call_nonnegative_warnv_p (tree type
CASE_CFN_ATANH:
CASE_CFN_CBRT:
CASE_CFN_CEIL:
+ CASE_CFN_CEIL_FN:
CASE_CFN_ERF:
CASE_CFN_EXPM1:
CASE_CFN_FLOOR:
+ CASE_CFN_FLOOR_FN:
CASE_CFN_FMOD:
CASE_CFN_FREXP:
CASE_CFN_ICEIL:
@@ -12804,8 +12806,11 @@ tree_call_nonnegative_warnv_p (tree type
CASE_CFN_LROUND:
CASE_CFN_MODF:
CASE_CFN_NEARBYINT:
+ CASE_CFN_NEARBYINT_FN:
CASE_CFN_RINT:
+ CASE_CFN_RINT_FN:
CASE_CFN_ROUND:
+ CASE_CFN_ROUND_FN:
CASE_CFN_SCALB:
CASE_CFN_SCALBLN:
CASE_CFN_SCALBN:
@@ -12814,6 +12819,7 @@ tree_call_nonnegative_warnv_p (tree type
CASE_CFN_SINH:
CASE_CFN_TANH:
CASE_CFN_TRUNC:
+ CASE_CFN_TRUNC_FN:
/* True if the 1st argument is nonnegative. */
return RECURSE (arg0);
@@ -13319,11 +13325,17 @@ integer_valued_real_call_p (combined_fn
switch (fn)
{
CASE_CFN_CEIL:
+ CASE_CFN_CEIL_FN:
CASE_CFN_FLOOR:
+ CASE_CFN_FLOOR_FN:
CASE_CFN_NEARBYINT:
+ CASE_CFN_NEARBYINT_FN:
CASE_CFN_RINT:
+ CASE_CFN_RINT_FN:
CASE_CFN_ROUND:
+ CASE_CFN_ROUND_FN:
CASE_CFN_TRUNC:
+ CASE_CFN_TRUNC_FN:
return true;
CASE_CFN_FMIN:
Index: gcc/fold-const-call.c
===================================================================
--- gcc/fold-const-call.c (revision 254846)
+++ gcc/fold-const-call.c (working copy)
@@ -699,6 +699,7 @@ fold_const_call_ss (real_value *result,
&& do_mpfr_arg1 (result, mpfr_y1, arg, format));
CASE_CFN_FLOOR:
+ CASE_CFN_FLOOR_FN:
if (!REAL_VALUE_ISNAN (*arg) || !flag_errno_math)
{
real_floor (result, format, arg);
@@ -707,6 +708,7 @@ fold_const_call_ss (real_value *result,
return false;
CASE_CFN_CEIL:
+ CASE_CFN_CEIL_FN:
if (!REAL_VALUE_ISNAN (*arg) || !flag_errno_math)
{
real_ceil (result, format, arg);
@@ -715,10 +717,12 @@ fold_const_call_ss (real_value *result,
return false;
CASE_CFN_TRUNC:
+ CASE_CFN_TRUNC_FN:
real_trunc (result, format, arg);
return true;
CASE_CFN_ROUND:
+ CASE_CFN_ROUND_FN:
if (!REAL_VALUE_ISNAN (*arg) || !flag_errno_math)
{
real_round (result, format, arg);
Index: gcc/gencfn-macros.c
===================================================================
--- gcc/gencfn-macros.c (revision 254846)
+++ gcc/gencfn-macros.c (working copy)
@@ -94,13 +94,15 @@ is_group (string_set *builtins, const ch
/* Print a macro for all combined functions related to NAME, with the
null-terminated list of suffixes in SUFFIXES. INTERNAL_P says whether
- CFN_<NAME> also exists. */
+ CFN_<NAME> also exists. FLOATN_P is a suffix to the operator name, blank
+ for normal operators, "_FN" for _Float<N>/_Float<N>X operators only, and
+ "_ALL" for both the traditional operators and the _Float<N>/_Float<N>X
+ operators. */
static void
print_case_cfn (const char *name, bool internal_p,
- const char *const *suffixes, bool floatn_p)
+ const char *const *suffixes, const char *floatn)
{
- const char *floatn = (floatn_p) ? "_FN" : "";
printf ("#define CASE_CFN_%s%s", name, floatn);
if (internal_p)
printf (" \\\n case CFN_%s%s", name, floatn);
@@ -110,15 +112,18 @@ print_case_cfn (const char *name, bool i
printf ("\n");
}
-/* Print an operator list for all combined functions related to NAME,
- with the null-terminated list of suffixes in SUFFIXES. INTERNAL_P
- says whether CFN_<NAME> also exists. */
+/* Print an operator list for all combined functions related to NAME, with the
+ null-terminated list of suffixes in SUFFIXES. INTERNAL_P says whether
+ CFN_<NAME> also exists. FLOATN_P is a suffix to the operator name, blank
+ for normal operators, "_FN" for _Float<N>/_Float<N>X operators only, and
+ "_ALL" for both the traditional operators and the _Float<N>/_Float<N>X
+ operators. */
static void
print_define_operator_list (const char *name, bool internal_p,
- const char *const *suffixes, bool floatn_p)
+ const char *const *suffixes,
+ const char *floatn)
{
- const char *floatn = (floatn_p) ? "_FN" : "";
printf ("(define_operator_list %s%s\n", name, floatn);
for (unsigned int i = 0; suffixes[i]; ++i)
printf (" BUILT_IN_%s%s\n", name, suffixes[i]);
@@ -152,6 +157,9 @@ const char *const internal_fn_int_names[
static const char *const flt_suffixes[] = { "F", "", "L", NULL };
static const char *const fltfn_suffixes[] = { "F16", "F32", "F64", "F128",
"F32X", "F64X", "F128X", NULL };
+static const char *const fltall_suffixes[] = { "F", "", "L", "F16", "F32",
+ "F64", "F128", "F32X", "F64X",
+ "F128X", NULL };
static const char *const int_suffixes[] = { "", "L", "LL", "IMAX", NULL };
static const char *const *const suffix_lists[] = {
@@ -212,22 +220,31 @@ main (int argc, char **argv)
bool internal_p = internal_fns.contains (root);
if (type == 'c')
- print_case_cfn (root, internal_p, suffix, false);
+ print_case_cfn (root, internal_p, suffix, "");
else
- print_define_operator_list (root, internal_p,
- suffix, false);
+ print_define_operator_list (root, internal_p, suffix, "");
/* Support the _Float<N> and _Float<N>X math functions if
- they exist. We put these out as a separate CFN macro,
- so code can add support or not as needed. */
+ they exist. We put these out as a separate CFN or
+ operator macro, so code can add support or not as
+ needed. We also put out a combined CFN or operator
+ macro that includes both the traditional names and the
+ _Float<N> and _Float<N>X versions. */
if (suffix == flt_suffixes
&& is_group (&builtins, root, fltfn_suffixes))
{
if (type == 'c')
- print_case_cfn (root, false, fltfn_suffixes, true);
+ {
+ print_case_cfn (root, false, fltfn_suffixes, "_FN");
+ print_case_cfn (root, false, fltall_suffixes, "_ALL");
+ }
else
- print_define_operator_list (root, false, fltfn_suffixes,
- true);
+ {
+ print_define_operator_list (root, false,
+ fltfn_suffixes, "_FN");
+ print_define_operator_list (root, internal_p,
+ fltall_suffixes, "_ALL");
+ }
}
}
}
Index: gcc/match.pd
===================================================================
--- gcc/match.pd (revision 254846)
+++ gcc/match.pd (working copy)
@@ -191,21 +191,21 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
/* Transform X * copysign (1.0, X) into abs(X). */
(simplify
- (mult:c @0 (COPYSIGN real_onep @0))
+ (mult:c @0 (COPYSIGN_ALL real_onep @0))
(if (!HONOR_NANS (type) && !HONOR_SIGNED_ZEROS (type))
(abs @0)))
/* Transform X * copysign (1.0, -X) into -abs(X). */
(simplify
- (mult:c @0 (COPYSIGN real_onep (negate @0)))
+ (mult:c @0 (COPYSIGN_ALL real_onep (negate @0)))
(if (!HONOR_NANS (type) && !HONOR_SIGNED_ZEROS (type))
(negate (abs @0))))
/* Transform copysign (CST, X) into copysign (ABS(CST), X). */
(simplify
- (COPYSIGN REAL_CST@0 @1)
+ (COPYSIGN_ALL REAL_CST@0 @1)
(if (REAL_VALUE_NEGATIVE (TREE_REAL_CST (@0)))
- (COPYSIGN (negate @0) @1)))
+ (COPYSIGN_ALL (negate @0) @1)))
/* X * 1, X / 1 -> X. */
(for op (mult trunc_div ceil_div floor_div round_div exact_div)
@@ -534,7 +534,7 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
(hypots @0 (op @1))
(hypots @0 @1)))
/* copysign(-x, y) and copysign(abs(x), y) -> copysign(x, y). */
- (for copysigns (COPYSIGN)
+ (for copysigns (COPYSIGN_ALL)
(simplify
(copysigns (op @0) @1)
(copysigns @0 @1))))
@@ -579,7 +579,7 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
(hypots @0 @1)))
/* copysign(x, CST) -> [-]abs (x). */
-(for copysigns (COPYSIGN)
+(for copysigns (COPYSIGN_ALL)
(simplify
(copysigns @0 REAL_CST@1)
(if (REAL_VALUE_NEGATIVE (TREE_REAL_CST (@1)))
@@ -587,13 +587,13 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
(abs @0))))
/* copysign(copysign(x, y), z) -> copysign(x, z). */
-(for copysigns (COPYSIGN)
+(for copysigns (COPYSIGN_ALL)
(simplify
(copysigns (copysigns @0 @1) @2)
(copysigns @0 @2)))
/* copysign(x,y)*copysign(x,y) -> x*x. */
-(for copysigns (COPYSIGN)
+(for copysigns (COPYSIGN_ALL)
(simplify
(mult (copysigns@2 @0 @1) @2)
(mult @0 @0)))
@@ -1802,7 +1802,7 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
/* Simplifications of MIN_EXPR, MAX_EXPR, fmin() and fmax(). */
-(for minmax (min max FMIN FMIN_FN FMAX FMAX_FN)
+(for minmax (min max FMIN_ALL FMAX_ALL)
(simplify
(minmax @0 @0)
@0))
@@ -1880,7 +1880,7 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
&& TYPE_PRECISION (TREE_TYPE (@0)) > TYPE_PRECISION (type))
(minmax @1 (convert @2)))))
-(for minmax (FMIN FMIN_FN FMAX FMAX_FN)
+(for minmax (FMIN_ALL FMAX_ALL)
/* If either argument is NaN, return the other one. Avoid the
transformation if we get (and honor) a signalling NaN. */
(simplify
@@ -1895,20 +1895,14 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
worry about it either. */
(if (flag_finite_math_only)
(simplify
- (FMIN @0 @1)
+ (FMIN_ALL @0 @1)
(min @0 @1))
(simplify
- (FMIN_FN @0 @1)
- (min @0 @1))
- (simplify
- (FMAX @0 @1)
- (max @0 @1))
- (simplify
- (FMAX_FN @0 @1)
+ (FMAX_ALL @0 @1)
(max @0 @1)))
/* min (-A, -B) -> -max (A, B) */
-(for minmax (min max FMIN FMIN_FN FMAX FMAX_FN)
- maxmin (max min FMAX FMAX_FN FMIN FMAX_FN)
+(for minmax (min max FMIN_ALL FMAX_ALL)
+ maxmin (max min FMAX_ALL FMIN_ALL)
(simplify
(minmax (negate:s@2 @0) (negate:s@3 @1))
(if (FLOAT_TYPE_P (TREE_TYPE (@0))
@@ -3697,7 +3691,7 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
(if (flag_unsafe_math_optimizations)
/* Simplify sqrt(x) * sqrt(x) -> x. */
(simplify
- (mult (SQRT@1 @0) @1)
+ (mult (SQRT_ALL@1 @0) @1)
(if (!HONOR_SNANS (type))
@0))
@@ -3850,12 +3844,12 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
(abs @0))
/* trunc(trunc(x)) -> trunc(x), etc. */
-(for fns (TRUNC FLOOR CEIL ROUND NEARBYINT RINT)
+(for fns (TRUNC_ALL FLOOR_ALL CEIL_ALL ROUND_ALL NEARBYINT_ALL RINT_ALL)
(simplify
(fns (fns @0))
(fns @0)))
/* f(x) -> x if x is integer valued and f does nothing for such values. */
-(for fns (TRUNC FLOOR CEIL ROUND NEARBYINT RINT)
+(for fns (TRUNC_ALL FLOOR_ALL CEIL_ALL ROUND_ALL NEARBYINT_ALL RINT_ALL)
(simplify
(fns integer_valued_real_p@0)
@0))
@@ -3872,12 +3866,12 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
(simplify
/* copysign(x,x) -> x. */
- (COPYSIGN @0 @0)
+ (COPYSIGN_ALL @0 @0)
@0)
(simplify
/* copysign(x,y) -> fabs(x) if y is nonnegative. */
- (COPYSIGN @0 tree_expr_nonnegative_p@1)
+ (COPYSIGN_ALL @0 tree_expr_nonnegative_p@1)
(abs @0))
(for scale (LDEXP SCALBN SCALBLN)
@@ -4028,8 +4022,8 @@ DEFINE_INT_AND_FLOAT_ROUND_FN (RINT)
(if (canonicalize_math_p ())
/* floor(x) -> trunc(x) if x is nonnegative. */
- (for floors (FLOOR)
- truncs (TRUNC)
+ (for floors (FLOOR_ALL)
+ truncs (TRUNC_ALL)
(simplify
(floors tree_expr_nonnegative_p@0)
(truncs @0))))
Index: gcc/config/rs6000/rs6000.md
===================================================================
--- gcc/config/rs6000/rs6000.md (revision 254846)
+++ gcc/config/rs6000/rs6000.md (working copy)
@@ -14733,6 +14733,47 @@ (define_insn_and_split "floatuns<QHI:mod
(set_attr "type" "vecfloat")
(set_attr "size" "128")])
+;; IEEE 128-bit round to integer built-in functions
+(define_insn "floor<mode>2"
+ [(set (match_operand:IEEE128 0 "altivec_register_operand" "=v")
+ (unspec:IEEE128
+ [(match_operand:IEEE128 1 "altivec_register_operand" "v")]
+ UNSPEC_FRIM))]
+ "TARGET_FLOAT128_HW && FLOAT128_IEEE_P (<MODE>mode)"
+ "xsrqpi 1,%0,%1,3"
+ [(set_attr "type" "vecfloat")
+ (set_attr "size" "128")])
+
+(define_insn "ceil<mode>2"
+ [(set (match_operand:IEEE128 0 "altivec_register_operand" "=v")
+ (unspec:IEEE128
+ [(match_operand:IEEE128 1 "altivec_register_operand" "v")]
+ UNSPEC_FRIP))]
+ "TARGET_FLOAT128_HW && FLOAT128_IEEE_P (<MODE>mode)"
+ "xsrqpi 1,%0,%1,2"
+ [(set_attr "type" "vecfloat")
+ (set_attr "size" "128")])
+
+(define_insn "btrunc<mode>2"
+ [(set (match_operand:IEEE128 0 "altivec_register_operand" "=v")
+ (unspec:IEEE128
+ [(match_operand:IEEE128 1 "altivec_register_operand" "v")]
+ UNSPEC_FRIZ))]
+ "TARGET_FLOAT128_HW && FLOAT128_IEEE_P (<MODE>mode)"
+ "xsrqpi 1,%0,%1,0"
+ [(set_attr "type" "vecfloat")
+ (set_attr "size" "128")])
+
+(define_insn "round<mode>2"
+ [(set (match_operand:IEEE128 0 "altivec_register_operand" "=v")
+ (unspec:IEEE128
+ [(match_operand:IEEE128 1 "altivec_register_operand" "v")]
+ UNSPEC_FRIN))]
+ "TARGET_FLOAT128_HW && FLOAT128_IEEE_P (<MODE>mode)"
+ "xsrqpi 0,%0,%1,3"
+ [(set_attr "type" "vecfloat")
+ (set_attr "size" "128")])
+
;; IEEE 128-bit instructions with round to odd semantics
(define_insn "add<mode>3_odd"
[(set (match_operand:IEEE128 0 "altivec_register_operand" "=v")
Index: gcc/c/c-decl.c
===================================================================
--- gcc/c/c-decl.c (revision 254846)
+++ gcc/c/c-decl.c (working copy)
@@ -3162,6 +3162,7 @@ header_for_builtin_fn (enum built_in_fun
CASE_FLT_FN (BUILT_IN_ATAN2):
CASE_FLT_FN (BUILT_IN_CBRT):
CASE_FLT_FN (BUILT_IN_CEIL):
+ CASE_FLT_FN_FLOATN_NX (BUILT_IN_CEIL):
CASE_FLT_FN (BUILT_IN_COPYSIGN):
CASE_FLT_FN_FLOATN_NX (BUILT_IN_COPYSIGN):
CASE_FLT_FN (BUILT_IN_COS):
@@ -3175,6 +3176,7 @@ header_for_builtin_fn (enum built_in_fun
CASE_FLT_FN_FLOATN_NX (BUILT_IN_FABS):
CASE_FLT_FN (BUILT_IN_FDIM):
CASE_FLT_FN (BUILT_IN_FLOOR):
+ CASE_FLT_FN_FLOATN_NX (BUILT_IN_FLOOR):
CASE_FLT_FN (BUILT_IN_FMA):
CASE_FLT_FN_FLOATN_NX (BUILT_IN_FMA):
CASE_FLT_FN (BUILT_IN_FMAX):
@@ -3199,13 +3201,16 @@ header_for_builtin_fn (enum built_in_fun
CASE_FLT_FN (BUILT_IN_MODF):
CASE_FLT_FN (BUILT_IN_NAN):
CASE_FLT_FN (BUILT_IN_NEARBYINT):
+ CASE_FLT_FN_FLOATN_NX (BUILT_IN_NEARBYINT):
CASE_FLT_FN (BUILT_IN_NEXTAFTER):
CASE_FLT_FN (BUILT_IN_NEXTTOWARD):
CASE_FLT_FN (BUILT_IN_POW):
CASE_FLT_FN (BUILT_IN_REMAINDER):
CASE_FLT_FN (BUILT_IN_REMQUO):
CASE_FLT_FN (BUILT_IN_RINT):
+ CASE_FLT_FN_FLOATN_NX (BUILT_IN_RINT):
CASE_FLT_FN (BUILT_IN_ROUND):
+ CASE_FLT_FN_FLOATN_NX (BUILT_IN_ROUND):
CASE_FLT_FN (BUILT_IN_SCALBLN):
CASE_FLT_FN (BUILT_IN_SCALBN):
CASE_FLT_FN (BUILT_IN_SIN):
@@ -3217,6 +3222,7 @@ header_for_builtin_fn (enum built_in_fun
CASE_FLT_FN (BUILT_IN_TANH):
CASE_FLT_FN (BUILT_IN_TGAMMA):
CASE_FLT_FN (BUILT_IN_TRUNC):
+ CASE_FLT_FN_FLOATN_NX (BUILT_IN_TRUNC):
case BUILT_IN_ISINF:
case BUILT_IN_ISNAN:
return "<math.h>";
Index: gcc/testsuite/gcc.target/powerpc/float128-hw2.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/float128-hw2.c (revision 254846)
+++ gcc/testsuite/gcc.target/powerpc/float128-hw2.c (working copy)
@@ -14,6 +14,10 @@
extern _Float128 copysignf128 (_Float128, _Float128);
extern _Float128 sqrtf128 (_Float128);
extern _Float128 fmaf128 (_Float128, _Float128, _Float128);
+extern _Float128 ceilf128 (_Float128);
+extern _Float128 floorf128 (_Float128);
+extern _Float128 truncf128 (_Float128);
+extern _Float128 roundf128 (_Float128);
_Float128
do_copysign (_Float128 a, _Float128 b)
@@ -51,10 +55,35 @@ do_nfms (_Float128 a, _Float128 b, _Floa
return -fmaf128 (a, b, -c);
}
+_Float128
+do_ceil (_Float128 a)
+{
+ return ceilf128 (a);
+}
+
+_Float128
+do_floor (_Float128 a)
+{
+ return floorf128 (a);
+}
+
+_Float128
+do_trunc (_Float128 a)
+{
+ return truncf128 (a);
+}
+
+_Float128
+do_round (_Float128 a)
+{
+ return roundf128 (a);
+}
+
/* { dg-final { scan-assembler {\mxscpsgnqp\M} } } */
/* { dg-final { scan-assembler {\mxssqrtqp\M} } } */
/* { dg-final { scan-assembler {\mxsmaddqp\M} } } */
/* { dg-final { scan-assembler {\mxsmsubqp\M} } } */
/* { dg-final { scan-assembler {\mxsnmaddqp\M} } } */
/* { dg-final { scan-assembler {\mxsnmsubqp\M} } } */
+/* { dg-final { scan-assembler {\mxsrqpi\M} } } */
/* { dg-final { scan-assembler-not {\mbl\M} } } */
Index: gcc/testsuite/gcc.target/powerpc/float128-hw5.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/float128-hw5.c (revision 0)
+++ gcc/testsuite/gcc.target/powerpc/float128-hw5.c (revision 0)
@@ -0,0 +1,33 @@
+/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-options "-mpower9-vector -O2 -ffast-math" } */
+
+extern _Float128 copysignf128 (_Float128, _Float128);
+
+/* Check copysign optimizations that are done for double are also done for
+ _Float128. */
+
+_Float128
+x_times_cs_one_negx (_Float128 x)
+{
+ return x * copysignf128 (1.0Q, -x); /* XSNABSQP */
+}
+
+_Float128
+x_times_cs_one_x (_Float128 x)
+{
+ return x * copysignf128 (1.0Q, x); /* XSABSQP */
+}
+
+_Float128
+cs_x_x (_Float128 x)
+{
+ return copysignf128 (x, x); /* no operation. */
+}
+
+/* { dg-final { scan-assembler-times {\mxsabsqp\M} 1 } } */
+/* { dg-final { scan-assembler-times {\mxsnabsqp\M} 1 } } */
+/* { dg-final { scan-assembler-not {\mxscpsgnqp\M} } } */
+/* { dg-final { scan-assembler-not {\mlxvx\M} } } */
+/* { dg-final { scan-assembler-not {\mlxv\M} } } */
+/* { dg-final { scan-assembler-not {\mbl\M} } } */
Index: gcc/testsuite/gcc.target/powerpc/float128-hw6.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/float128-hw6.c (revision 0)
+++ gcc/testsuite/gcc.target/powerpc/float128-hw6.c (revision 0)
@@ -0,0 +1,26 @@
+/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-options "-mpower9-vector -O2" } */
+
+extern _Float128 fabsf128 (_Float128);
+extern _Float128 copysignf128 (_Float128, _Float128);
+
+/* Check copysign optimizations that are done for double are also done for
+ _Float128. */
+
+_Float128
+cs_negx_y (_Float128 x, _Float128 y)
+{
+ return copysignf128 (-x, y); /* eliminate negation. */
+}
+
+_Float128
+cs_absx_y (_Float128 x, _Float128 y)
+{
+ return copysignf128 (fabsf128 (x), y); /* eliminate fabsf128. */
+}
+
+/* { dg-final { scan-assembler-times {\mxscpsgnqp\M} 2 } } */
+/* { dg-final { scan-assembler-not {\mxsnegqp\M} } } */
+/* { dg-final { scan-assembler-not {\mxsabsqp\M} } } */
+/* { dg-final { scan-assembler-not {\mbl\M} } } */
Index: gcc/testsuite/gcc.target/powerpc/float128-hw7.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/float128-hw7.c (revision 0)
+++ gcc/testsuite/gcc.target/powerpc/float128-hw7.c (revision 0)
@@ -0,0 +1,27 @@
+/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-options "-mpower9-vector -O2" } */
+
+extern _Float128 fabsf128 (_Float128);
+extern _Float128 copysignf128 (_Float128, _Float128);
+
+/* Check copysign optimizations that are done for double are also done for
+ _Float128. */
+
+_Float128
+cs_x_pos1 (_Float128 x)
+{
+ return copysignf128 (x, 1.0Q); /* XSABSQP. */
+}
+
+_Float128 cs_x_neg2 (_Float128 x)
+{
+ return copysignf128 (x, -2.0Q); /* XSNABSQP. */
+}
+
+/* { dg-final { scan-assembler-times {\mxsabsqp\M} 1 } } */
+/* { dg-final { scan-assembler-not {\mxsnabsqp\M} 1 } } */
+/* { dg-final { scan-assembler-not {\mxscpsgnqp\M} } } */
+/* { dg-final { scan-assembler-not {\mlxvx\M} } } */
+/* { dg-final { scan-assembler-not {\mlxv\M} } } */
+/* { dg-final { scan-assembler-not {\mbl\M} } } */
Index: gcc/testsuite/gcc.target/powerpc/float128-hw8.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/float128-hw8.c (revision 0)
+++ gcc/testsuite/gcc.target/powerpc/float128-hw8.c (revision 0)
@@ -0,0 +1,24 @@
+/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-options "-mpower9-vector -O2" } */
+
+extern _Float128 fminf128 (_Float128, _Float128);
+extern _Float128 fmaxf128 (_Float128, _Float128);
+
+/* Check min/max optimizations that are done for double are also done for
+ _Float128. */
+
+_Float128
+min_x_x (_Float128 x)
+{
+ return fminf128 (x, x);
+}
+
+_Float128
+max_x_x (_Float128 x)
+{
+ return fmaxf128 (x, x);
+}
+
+/* { dg-final { scan-assembler-not {\mxscmpuqp\M} } } */
+/* { dg-final { scan-assembler-not {\mbl\M} } } */
Index: gcc/testsuite/gcc.target/powerpc/float128-hw9.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/float128-hw9.c (revision 0)
+++ gcc/testsuite/gcc.target/powerpc/float128-hw9.c (revision 0)
@@ -0,0 +1,17 @@
+/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-options "-mpower9-vector -O2 -ffast-math" } */
+
+extern _Float128 sqrtf128 (_Float128);
+
+/* Check sqrt optimizations that are done for double are also done for
+ _Float128. */
+
+_Float128
+sqrt_x_times_sqrt_x (_Float128 x)
+{
+ return sqrtf128 (x) * sqrtf128 (x);
+}
+
+/* { dg-final { scan-assembler-not {\mxssqrtqp\M} } } */
+/* { dg-final { scan-assembler-not {\mbl\M} } } */
Index: gcc/testsuite/gcc.target/powerpc/float128-hw10.c
===================================================================
--- gcc/testsuite/gcc.target/powerpc/float128-hw10.c (revision 0)
+++ gcc/testsuite/gcc.target/powerpc/float128-hw10.c (revision 0)
@@ -0,0 +1,38 @@
+/* { dg-do compile { target { powerpc*-*-* && lp64 } } } */
+/* { dg-require-effective-target powerpc_p9vector_ok } */
+/* { dg-options "-mpower9-vector -O2" } */
+
+extern _Float128 floorf128 (_Float128);
+extern _Float128 ceilf128 (_Float128);
+extern _Float128 roundf128 (_Float128);
+extern _Float128 truncf128 (_Float128);
+
+/* Check rounding optimizations that are done for double are also done for
+ _Float128. */
+
+_Float128
+floor_floor_x (_Float128 x)
+{
+ return floorf128 (floorf128 (x));
+}
+
+_Float128
+ceil_ceil_x (_Float128 x)
+{
+ return ceilf128 (ceilf128 (x));
+}
+
+_Float128
+trunc_trunc_x (_Float128 x)
+{
+ return truncf128 (truncf128 (x));
+}
+
+_Float128
+round_round_x (_Float128 x)
+{
+ return roundf128 (roundf128 (x));
+}
+
+/* { dg-final { scan-assembler-times {\mxsrqpi\M} 4 } } */
+/* { dg-final { scan-assembler-not {\mbl\M} } } */
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