+2018-04-20 Michael Meissner <meissner@linux.ibm.com>
+
+ PR target/85456
+ * config/rs6000/rs6000.c (init_float128_ieee): Add support to call
+ __powikf2 when long double is IEEE 128-bit.
+
2018-04-20 Kito Cheng <kito.cheng@gmail.com>
* config/riscv/riscv.c (riscv_first_stack_step): Round up min
set_optab_libfunc (sdiv_optab, mode, "__divkf3");
set_optab_libfunc (sqrt_optab, mode, "__sqrtkf2");
set_optab_libfunc (abs_optab, mode, "__abstkf2");
+ set_optab_libfunc (powi_optab, mode, "__powitkf2");
set_optab_libfunc (eq_optab, mode, "__eqkf2");
set_optab_libfunc (ne_optab, mode, "__nekf2");
+2018-04-20 Michael Meissner <meissner@linux.ibm.com>
+
+ PR target/85456
+ * gcc.target/powerpc/pr85456.c: New test.
+
2018-04-20 Bill Schmidt <wschmidt@linux.ibm.com>
* g++.dg/ext/undef-bool-1.C: Require lp64.
--- /dev/null
+/* { dg-do compile { target { powerpc*-*-* } } } */
+/* { dg-require-effective-target powerpc_p8vector_ok } */
+/* { dg-options "-O2 -mpower8-vector -mabi=ieeelongdouble -Wno-psabi" } */
+
+/* Check that the __builtin_powil generates a call to the correct function
+ when long double uses IEEE 128-bit floating point. */
+
+long double
+do_powl (long double a, int i)
+{
+ return __builtin_powil (a, i);
+}
+
+/* { dg-final { scan-assembler "bl __powikf2" } } */
+2018-04-20 Michael Meissner <meissner@linux.ibm.com>
+
+ PR target/85456
+ * config/rs6000/_powikf2.c: New file. Add support for the
+ __builtin_powil function when long double is IEEE 128-bit floating
+ point.
+ * config/rs6000/float128-ifunc.c (__powikf2_resolve): Add
+ __powikf2 support.
+ (__powikf2): Likewise.
+ * config/rs6000/quad-float128.h (__powikf2_sw): Likewise.
+ (__powikf2_hw): Likewise.
+ (__powikf2): Likewise.
+ * config/rs6000/t-float128 (fp128_ppc_funcs): Likewise.
+ * config/rs6000/t-float128-hw (fp128_hw_func): Likewise.
+ (_powikf2-hw.c): Likewise.
+
2018-04-19 H.J. Lu <hongjiu.lu@intel.com>
PR libgcc/85334
--- /dev/null
+/* Copyright (C) 1989-2018 Free Software Foundation, Inc.
+
+This file is part of GCC.
+
+GCC is free software; you can redistribute it and/or modify it under
+the terms of the GNU General Public License as published by the Free
+Software Foundation; either version 3, or (at your option) any later
+version.
+
+GCC is distributed in the hope that it will be useful, but WITHOUT ANY
+WARRANTY; without even the implied warranty of MERCHANTABILITY or
+FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+for more details.
+
+Under Section 7 of GPL version 3, you are granted additional
+permissions described in the GCC Runtime Library Exception, version
+3.1, as published by the Free Software Foundation.
+
+You should have received a copy of the GNU General Public License and
+a copy of the GCC Runtime Library Exception along with this program;
+see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+<http://www.gnu.org/licenses/>. */
+
+#include "soft-fp.h"
+#include "quad-float128.h"
+
+/* __powikf3 can be compiled 3 different ways:
+
+ 1) If the assembler does not have support for the IEEE 128-bit insns
+ (xsaddqp, etc.) it is just compiled as __powikf2.
+
+ 2) If the assembler has IEEE 128-bit floating point support, and __powikf2
+ is not previously defined, it is defined as __powikf2_sw.
+
+ 3) If the assembler has IEEE 128-bit floating point support, and __powikf2
+ is included by _powikf2-hw.c, which defines __powikf2 as __powikf2_hw. The
+ __powikf2_hw.c is compiled with -mcpu=power9 and it automatically uses the
+ IEEE 128-bit instructions.
+
+ For #2/#3, float128-ifunc.c defines an ifunc function for __powikf2, that
+ will use the software version on power7/power8 systems, and the hardware
+ version on power9 systems.
+
+ The code is cloned from the code in libgcc2.c (which handles the standard
+ SF, DF, TF, and XF types). */
+
+#if defined(FLOAT128_HW_INSNS) && !defined(__powikf2)
+#define __powikf2 __powikf2_sw
+#endif
+
+TFtype
+__powikf2 (TFtype x, SItype_ppc m)
+{
+ unsigned int n = m < 0 ? -m : m;
+ TFtype y = n % 2 ? x : 1;
+ while (n >>= 1)
+ {
+ x = x * x;
+ if (n % 2)
+ y = y * x;
+ }
+ return m < 0 ? 1/y : y;
+}
return SW_OR_HW (__negkf2_sw, __negkf2_hw);
}
+static __typeof__ (__powikf2_sw) *
+__powikf2_resolve (void)
+{
+ return SW_OR_HW (__powikf2_sw, __powikf2_hw);
+}
+
static __typeof__ (__floatsikf_sw) *
__floatsikf_resolve (void)
{
TFtype __negkf2 (TFtype)
__attribute__ ((__ifunc__ ("__negkf2_resolve")));
+TFtype __powikf2 (TFtype, SItype_ppc)
+ __attribute__ ((__ifunc__ ("__powikf2_resolve")));
+
CMPtype __eqkf2 (TFtype, TFtype)
__attribute__ ((__ifunc__ ("__eqkf2_resolve")));
extern TFtype __mulkf3_sw (TFtype, TFtype);
extern TFtype __divkf3_sw (TFtype, TFtype);
extern TFtype __negkf2_sw (TFtype);
+extern TFtype __powikf2_sw (TFtype, SItype_ppc);
extern CMPtype __eqkf2_sw (TFtype, TFtype);
extern CMPtype __gekf2_sw (TFtype, TFtype);
extern CMPtype __lekf2_sw (TFtype, TFtype);
extern TFtype __mulkf3_hw (TFtype, TFtype);
extern TFtype __divkf3_hw (TFtype, TFtype);
extern TFtype __negkf2_hw (TFtype);
+extern TFtype __powikf2_hw (TFtype, SItype_ppc);
extern CMPtype __eqkf2_hw (TFtype, TFtype);
extern CMPtype __gekf2_hw (TFtype, TFtype);
extern CMPtype __lekf2_hw (TFtype, TFtype);
extern TFtype __mulkf3 (TFtype, TFtype);
extern TFtype __divkf3 (TFtype, TFtype);
extern TFtype __negkf2 (TFtype);
+extern TFtype __powikf2 (TFtype, SItype_ppc);
extern CMPtype __eqkf2 (TFtype, TFtype);
extern CMPtype __nekf2 (TFtype, TFtype);
extern CMPtype __gekf2 (TFtype, TFtype);
# New functions for software emulation
fp128_ppc_funcs = floattikf floatuntikf fixkfti fixunskfti \
extendkftf2-sw trunctfkf2-sw \
- sfp-exceptions _mulkc3 _divkc3
+ sfp-exceptions _mulkc3 _divkc3 _powikf2
fp128_ppc_src = $(addprefix $(srcdir)/config/rs6000/,$(addsuffix \
.c,$(fp128_ppc_funcs)))
# New functions for hardware support
fp128_hardfp_src = _mulkc3-hw.c _divkc3-hw.c
-fp128_hw_funcs = float128-hw _mulkc3-hw _divkc3-hw
+fp128_hw_funcs = float128-hw _mulkc3-hw _divkc3-hw _powikf2-hw
fp128_hw_src = $(srcdir)/config/rs6000/float128-hw.c _mulkc3-hw.c \
- _divkc3-hw.c
+ _divkc3-hw.c _powikf2-hw.c
fp128_hw_static_obj = $(addsuffix $(objext),$(fp128_hw_funcs))
fp128_hw_shared_obj = $(addsuffix _s$(objext),$(fp128_hw_funcs))
fp128_hw_obj = $(fp128_hw_static_obj) $(fp128_hw_shared_obj)
_divkc3-hw.c: $(srcdir)/config/rs6000/_divkc3.c
(echo "#define __divkc3 __divkc3_hw"; \
cat $(srcdir)/config/rs6000/_divkc3.c) > _divkc3-hw.c
+
+_powikf2-hw.c: $(srcdir)/config/rs6000/_powikf2.c
+ (echo "#define __powikf2 __powikf2_hw"; \
+ cat $(srcdir)/config/rs6000/_powikf2.c) > _powikf2-hw.c
projects / gcc.git / commitdiff