* [10/12] Add femode_t functions: s390
@ 2016-09-02 21:58 Joseph Myers
2016-09-03 14:38 ` Yury Norov
2016-09-05 11:17 ` Stefan Liebler
0 siblings, 2 replies; 5+ messages in thread
From: Joseph Myers @ 2016-09-02 21:58 UTC (permalink / raw)
To: libc-alpha; +Cc: stli
This patch adds S/390 versions of fegetmode and fesetmode. Untested.
2016-09-02 Joseph Myers <joseph@codesourcery.com>
* sysdeps/s390/fpu/fegetmode.c: New file.
* sysdeps/s390/fpu/fesetmode.c: Likewise.
diff --git a/sysdeps/s390/fpu/fegetmode.c b/sysdeps/s390/fpu/fegetmode.c
new file mode 100644
index 0000000..a6e67c2
--- /dev/null
+++ b/sysdeps/s390/fpu/fegetmode.c
@@ -0,0 +1,27 @@
+/* Store current floating-point control modes. S/390 version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fegetmode (femode_t *modep)
+{
+ _FPU_GETCW (*modep);
+ return 0;
+}
diff --git a/sysdeps/s390/fpu/fesetmode.c b/sysdeps/s390/fpu/fesetmode.c
new file mode 100644
index 0000000..8feb9b6
--- /dev/null
+++ b/sysdeps/s390/fpu/fesetmode.c
@@ -0,0 +1,38 @@
+/* Install given floating-point control modes. S/390 version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <fenv_libc.h>
+
+#define FPC_STATUS (FPC_FLAGS_MASK | FPC_DXC_MASK)
+
+int
+fesetmode (const femode_t *modep)
+{
+ fpu_control_t fpc;
+
+ _FPU_GETCW (fpc);
+ if (modep == FE_DFL_ENV)
+ fpc = (fpc & FPC_STATUS) | _FPU_DEFAULT;
+ else
+ fpc = (fpc & FPC_STATUS) | (*modep & ~FPC_STATUS);
+ _FPU_SETCW (fpc);
+
+ return 0;
+}
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [10/12] Add femode_t functions: s390
2016-09-02 21:58 [10/12] Add femode_t functions: s390 Joseph Myers
@ 2016-09-03 14:38 ` Yury Norov
2016-09-03 14:48 ` Yury Norov
2016-09-05 11:17 ` Stefan Liebler
1 sibling, 1 reply; 5+ messages in thread
From: Yury Norov @ 2016-09-03 14:38 UTC (permalink / raw)
To: Joseph Myers; +Cc: libc-alpha, stli
On Fri, Sep 02, 2016 at 09:58:37PM +0000, Joseph Myers wrote:
[...]
> diff --git a/sysdeps/s390/fpu/fesetmode.c b/sysdeps/s390/fpu/fesetmode.c
> new file mode 100644
> index 0000000..8feb9b6
> --- /dev/null
> +++ b/sysdeps/s390/fpu/fesetmode.c
> @@ -0,0 +1,38 @@
> +/* Install given floating-point control modes. S/390 version.
> + Copyright (C) 2016 Free Software Foundation, Inc.
> + This file is part of the GNU C Library.
> +
> + The GNU C Library is free software; you can redistribute it and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later version.
> +
> + The GNU C Library 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
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with the GNU C Library; if not, see
> + <http://www.gnu.org/licenses/>. */
> +
> +#include <fenv.h>
> +#include <fpu_control.h>
> +#include <fenv_libc.h>
> +
> +#define FPC_STATUS (FPC_FLAGS_MASK | FPC_DXC_MASK)
> +
> +int
> +fesetmode (const femode_t *modep)
> +{
> + fpu_control_t fpc;
> +
> + _FPU_GETCW (fpc);
> + if (modep == FE_DFL_ENV)
> + fpc = (fpc & FPC_STATUS) | _FPU_DEFAULT;
> + else
> + fpc = (fpc & FPC_STATUS) | (*modep & ~FPC_STATUS);
You do fpc = (fpc & FPC_STATUS) in both branches of condition.
So you can save few instruction if move this snippet upper,
and also increase readability.
Not sure how much gcc-s390 is smart, maybe it can do it for you, but
readability is still in case.
> + _FPU_SETCW (fpc);
> +
> + return 0;
> +}
>
> --
> Joseph S. Myers
> joseph@codesourcery.com
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [10/12] Add femode_t functions: s390
2016-09-03 14:38 ` Yury Norov
@ 2016-09-03 14:48 ` Yury Norov
2016-09-05 15:16 ` Joseph Myers
0 siblings, 1 reply; 5+ messages in thread
From: Yury Norov @ 2016-09-03 14:48 UTC (permalink / raw)
To: Joseph Myers; +Cc: libc-alpha, stli
On Sat, Sep 03, 2016 at 05:38:32PM +0300, Yury Norov wrote:
> On Fri, Sep 02, 2016 at 09:58:37PM +0000, Joseph Myers wrote:
>
> [...]
>
> > diff --git a/sysdeps/s390/fpu/fesetmode.c b/sysdeps/s390/fpu/fesetmode.c
> > new file mode 100644
> > index 0000000..8feb9b6
> > --- /dev/null
> > +++ b/sysdeps/s390/fpu/fesetmode.c
> > @@ -0,0 +1,38 @@
> > +/* Install given floating-point control modes. S/390 version.
> > + Copyright (C) 2016 Free Software Foundation, Inc.
> > + This file is part of the GNU C Library.
> > +
> > + The GNU C Library is free software; you can redistribute it and/or
> > + modify it under the terms of the GNU Lesser General Public
> > + License as published by the Free Software Foundation; either
> > + version 2.1 of the License, or (at your option) any later version.
> > +
> > + The GNU C Library 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
> > + Lesser General Public License for more details.
> > +
> > + You should have received a copy of the GNU Lesser General Public
> > + License along with the GNU C Library; if not, see
> > + <http://www.gnu.org/licenses/>. */
> > +
> > +#include <fenv.h>
> > +#include <fpu_control.h>
> > +#include <fenv_libc.h>
> > +
> > +#define FPC_STATUS (FPC_FLAGS_MASK | FPC_DXC_MASK)
> > +
> > +int
> > +fesetmode (const femode_t *modep)
> > +{
> > + fpu_control_t fpc;
> > +
> > + _FPU_GETCW (fpc);
> > + if (modep == FE_DFL_ENV)
> > + fpc = (fpc & FPC_STATUS) | _FPU_DEFAULT;
> > + else
> > + fpc = (fpc & FPC_STATUS) | (*modep & ~FPC_STATUS);
>
> You do fpc = (fpc & FPC_STATUS) in both branches of condition.
> So you can save few instruction if move this snippet upper,
> and also increase readability.
>
> Not sure how much gcc-s390 is smart, maybe it can do it for you, but
> readability is still in case.
The same is true for sh, spark, mips and hppa.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [10/12] Add femode_t functions: s390
2016-09-02 21:58 [10/12] Add femode_t functions: s390 Joseph Myers
2016-09-03 14:38 ` Yury Norov
@ 2016-09-05 11:17 ` Stefan Liebler
1 sibling, 0 replies; 5+ messages in thread
From: Stefan Liebler @ 2016-09-05 11:17 UTC (permalink / raw)
To: libc-alpha
On 09/02/2016 11:58 PM, Joseph Myers wrote:
> This patch adds S/390 versions of fegetmode and fesetmode. Untested.
>
> 2016-09-02 Joseph Myers <joseph@codesourcery.com>
>
> * sysdeps/s390/fpu/fegetmode.c: New file.
> * sysdeps/s390/fpu/fesetmode.c: Likewise.
>
> diff --git a/sysdeps/s390/fpu/fegetmode.c b/sysdeps/s390/fpu/fegetmode.c
> new file mode 100644
> index 0000000..a6e67c2
> --- /dev/null
> +++ b/sysdeps/s390/fpu/fegetmode.c
> @@ -0,0 +1,27 @@
> +/* Store current floating-point control modes. S/390 version.
> + Copyright (C) 2016 Free Software Foundation, Inc.
> + This file is part of the GNU C Library.
> +
> + The GNU C Library is free software; you can redistribute it and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later version.
> +
> + The GNU C Library 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
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with the GNU C Library; if not, see
> + <http://www.gnu.org/licenses/>. */
> +
> +#include <fenv.h>
> +#include <fpu_control.h>
> +
> +int
> +fegetmode (femode_t *modep)
> +{
> + _FPU_GETCW (*modep);
> + return 0;
> +}
> diff --git a/sysdeps/s390/fpu/fesetmode.c b/sysdeps/s390/fpu/fesetmode.c
> new file mode 100644
> index 0000000..8feb9b6
> --- /dev/null
> +++ b/sysdeps/s390/fpu/fesetmode.c
> @@ -0,0 +1,38 @@
> +/* Install given floating-point control modes. S/390 version.
> + Copyright (C) 2016 Free Software Foundation, Inc.
> + This file is part of the GNU C Library.
> +
> + The GNU C Library is free software; you can redistribute it and/or
> + modify it under the terms of the GNU Lesser General Public
> + License as published by the Free Software Foundation; either
> + version 2.1 of the License, or (at your option) any later version.
> +
> + The GNU C Library 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
> + Lesser General Public License for more details.
> +
> + You should have received a copy of the GNU Lesser General Public
> + License along with the GNU C Library; if not, see
> + <http://www.gnu.org/licenses/>. */
> +
> +#include <fenv.h>
> +#include <fpu_control.h>
> +#include <fenv_libc.h>
> +
> +#define FPC_STATUS (FPC_FLAGS_MASK | FPC_DXC_MASK)
> +
> +int
> +fesetmode (const femode_t *modep)
> +{
> + fpu_control_t fpc;
> +
> + _FPU_GETCW (fpc);
> + if (modep == FE_DFL_ENV)
> + fpc = (fpc & FPC_STATUS) | _FPU_DEFAULT;
> + else
> + fpc = (fpc & FPC_STATUS) | (*modep & ~FPC_STATUS);
> + _FPU_SETCW (fpc);
> +
> + return 0;
> +}
>
Hi Joseph,
please compare against FE_DFL_MODE as you would compare different
pointer types instead:
diff --git a/sysdeps/s390/fpu/fesetmode.c b/sysdeps/s390/fpu/fesetmode.c
index 8feb9b6..f95a777 100644
--- a/sysdeps/s390/fpu/fesetmode.c
+++ b/sysdeps/s390/fpu/fesetmode.c
@@ -28,7 +28,7 @@ fesetmode (const femode_t *modep)
fpu_control_t fpc;
_FPU_GETCW (fpc);
- if (modep == FE_DFL_ENV)
+ if (modep == FE_DFL_MODE)
fpc = (fpc & FPC_STATUS) | _FPU_DEFAULT;
else
fpc = (fpc & FPC_STATUS) | (*modep & ~FPC_STATUS);
Afterwards, glibc builds on s390/s390x and the new testcases run
successfully.
Only as a side note to Yuri's comment:
gcc-s390 is smart enough and moves the (fpc & FPC_STATUS) up.
Furthermore it omits the or'ing with _FPU_DEFAULT as it is zero.
Thanks.
Stefan
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [10/12] Add femode_t functions: s390
2016-09-03 14:48 ` Yury Norov
@ 2016-09-05 15:16 ` Joseph Myers
0 siblings, 0 replies; 5+ messages in thread
From: Joseph Myers @ 2016-09-05 15:16 UTC (permalink / raw)
To: Yury Norov; +Cc: libc-alpha, stli, carlos, davem
On Sat, 3 Sep 2016, Yury Norov wrote:
> > You do fpc = (fpc & FPC_STATUS) in both branches of condition.
> > So you can save few instruction if move this snippet upper,
> > and also increase readability.
> >
> > Not sure how much gcc-s390 is smart, maybe it can do it for you, but
> > readability is still in case.
>
> The same is true for sh, spark, mips and hppa.
I've updated the relevant patches.
Add femode_t functions: hppa.
This patch adds HPPA versions of fegetmode and fesetmode. Untested.
2016-09-02 Joseph Myers <joseph@codesourcery.com>
* sysdeps/hppa/fpu/fegetmode.c: New file.
* sysdeps/hppa/fpu/fesetmode.c: Likewise.
diff --git a/sysdeps/hppa/fpu/fegetmode.c b/sysdeps/hppa/fpu/fegetmode.c
new file mode 100644
index 0000000..b307495
--- /dev/null
+++ b/sysdeps/hppa/fpu/fegetmode.c
@@ -0,0 +1,27 @@
+/* Store current floating-point control modes. HPPA version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fegetmode (femode_t *modep)
+{
+ _FPU_GETCW (*modep);
+ return 0;
+}
diff --git a/sysdeps/hppa/fpu/fesetmode.c b/sysdeps/hppa/fpu/fesetmode.c
new file mode 100644
index 0000000..6416dab
--- /dev/null
+++ b/sysdeps/hppa/fpu/fesetmode.c
@@ -0,0 +1,36 @@
+/* Install given floating-point control modes. HPPA version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+#define FPU_CONTROL_BITS (_FPU_HPPA_MASK_RM | 0x20 | _FPU_HPPA_MASK_INT)
+
+int
+fesetmode (const femode_t *modep)
+{
+ fpu_control_t cw;
+ _FPU_GETCW (cw);
+ cw &= ~FPU_CONTROL_BITS;
+ if (modep == FE_DFL_MODE)
+ cw |= _FPU_DEFAULT;
+ else
+ cw |= *modep & FPU_CONTROL_BITS;
+ _FPU_SETCW (cw);
+ return 0;
+}
Add femode_t functions: mips.
This patch adds MIPS versions of fegetmode and fesetmode.
2016-09-02 Joseph Myers <joseph@codesourcery.com>
* sysdeps/mips/fpu/fegetmode.c: New file.
* sysdeps/mips/fpu/fesetmode.c: Likewise.
diff --git a/sysdeps/mips/fpu/fegetmode.c b/sysdeps/mips/fpu/fegetmode.c
new file mode 100644
index 0000000..3754aef
--- /dev/null
+++ b/sysdeps/mips/fpu/fegetmode.c
@@ -0,0 +1,27 @@
+/* Store current floating-point control modes. MIPS version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fegetmode (femode_t *modep)
+{
+ _FPU_GETCW (*modep);
+ return 0;
+}
diff --git a/sysdeps/mips/fpu/fesetmode.c b/sysdeps/mips/fpu/fesetmode.c
new file mode 100644
index 0000000..d15c9eb
--- /dev/null
+++ b/sysdeps/mips/fpu/fesetmode.c
@@ -0,0 +1,38 @@
+/* Install given floating-point control modes. MIPS version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+#define FCSR_STATUS 0xfe83f07c
+
+int
+fesetmode (const femode_t *modep)
+{
+ fpu_control_t cw;
+
+ _FPU_GETCW (cw);
+ cw &= FCSR_STATUS;
+ if (modep == FE_DFL_MODE)
+ cw |= _FPU_DEFAULT;
+ else
+ cw |= *modep & ~FCSR_STATUS;
+ _FPU_SETCW (cw);
+
+ return 0;
+}
Add femode_t functions: s390.
This patch adds S/390 versions of fegetmode and fesetmode. Untested.
2016-09-02 Joseph Myers <joseph@codesourcery.com>
* sysdeps/s390/fpu/fegetmode.c: New file.
* sysdeps/s390/fpu/fesetmode.c: Likewise.
diff --git a/sysdeps/s390/fpu/fegetmode.c b/sysdeps/s390/fpu/fegetmode.c
new file mode 100644
index 0000000..a6e67c2
--- /dev/null
+++ b/sysdeps/s390/fpu/fegetmode.c
@@ -0,0 +1,27 @@
+/* Store current floating-point control modes. S/390 version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fegetmode (femode_t *modep)
+{
+ _FPU_GETCW (*modep);
+ return 0;
+}
diff --git a/sysdeps/s390/fpu/fesetmode.c b/sysdeps/s390/fpu/fesetmode.c
new file mode 100644
index 0000000..85a2f2b
--- /dev/null
+++ b/sysdeps/s390/fpu/fesetmode.c
@@ -0,0 +1,39 @@
+/* Install given floating-point control modes. S/390 version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+#include <fenv_libc.h>
+
+#define FPC_STATUS (FPC_FLAGS_MASK | FPC_DXC_MASK)
+
+int
+fesetmode (const femode_t *modep)
+{
+ fpu_control_t fpc;
+
+ _FPU_GETCW (fpc);
+ fpc &= FPC_STATUS;
+ if (modep == FE_DFL_MODE)
+ fpc |= _FPU_DEFAULT;
+ else
+ fpc |= *modep & ~FPC_STATUS;
+ _FPU_SETCW (fpc);
+
+ return 0;
+}
Add femode_t functions: sh.
This patch adds SH versions of fegetmode and fesetmode. Untested.
2016-09-02 Joseph Myers <joseph@codesourcery.com>
* sysdeps/sh/sh4/fpu/fegetmode.c: New file.
* sysdeps/sh/sh4/fpu/fesetmode.c: Likewise.
diff --git a/sysdeps/sh/sh4/fpu/fegetmode.c b/sysdeps/sh/sh4/fpu/fegetmode.c
new file mode 100644
index 0000000..53691b2
--- /dev/null
+++ b/sysdeps/sh/sh4/fpu/fegetmode.c
@@ -0,0 +1,27 @@
+/* Store current floating-point control modes. SH4 version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+int
+fegetmode (femode_t *modep)
+{
+ _FPU_GETCW (*modep);
+ return 0;
+}
diff --git a/sysdeps/sh/sh4/fpu/fesetmode.c b/sysdeps/sh/sh4/fpu/fesetmode.c
new file mode 100644
index 0000000..eb1cddc
--- /dev/null
+++ b/sysdeps/sh/sh4/fpu/fesetmode.c
@@ -0,0 +1,38 @@
+/* Install given floating-point control modes. SH4 version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+#define FPU_STATUS 0x3f07c
+
+int
+fesetmode (const femode_t *modep)
+{
+ fpu_control_t fpscr;
+
+ _FPU_GETCW (fpscr);
+ fpscr &= FPU_STATUS;
+ if (modep == FE_DFL_MODE)
+ fpscr |= _FPU_DEFAULT;
+ else
+ fpscr |= *modep & ~FPU_STATUS;
+ _FPU_SETCW (fpscr);
+
+ return 0;
+}
Add femode_t functions: sparc.
This patch adds SPARC versions of fegetmode and fesetmode. Untested.
2016-09-02 Joseph Myers <joseph@codesourcery.com>
* sysdeps/sparc/fpu/fegetmode.c: New file.
* sysdeps/sparc/fpu/fesetmode.c: Likewise.
diff --git a/sysdeps/sparc/fpu/fegetmode.c b/sysdeps/sparc/fpu/fegetmode.c
new file mode 100644
index 0000000..68e694e
--- /dev/null
+++ b/sysdeps/sparc/fpu/fegetmode.c
@@ -0,0 +1,26 @@
+/* Store current floating-point control modes. SPARC version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+
+int
+fegetmode (femode_t *modep)
+{
+ __fenv_stfsr (*modep);
+ return 0;
+}
diff --git a/sysdeps/sparc/fpu/fesetmode.c b/sysdeps/sparc/fpu/fesetmode.c
new file mode 100644
index 0000000..4a0080e
--- /dev/null
+++ b/sysdeps/sparc/fpu/fesetmode.c
@@ -0,0 +1,38 @@
+/* Install given floating-point control modes. SPARC version.
+ Copyright (C) 2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <fenv.h>
+#include <fpu_control.h>
+
+#define FPU_CONTROL_BITS 0xcfc00000UL
+
+int
+fesetmode (const femode_t *modep)
+{
+ femode_t fsr;
+
+ __fenv_stfsr (fsr);
+ fsr &= ~FPU_CONTROL_BITS;
+ if (modep == FE_DFL_MODE)
+ fsr |= _FPU_DEFAULT;
+ else
+ fsr |= *modep & FPU_CONTROL_BITS;
+ __fenv_ldfsr (fsr);
+
+ return 0;
+}
--
Joseph S. Myers
joseph@codesourcery.com
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2016-09-05 15:16 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-09-02 21:58 [10/12] Add femode_t functions: s390 Joseph Myers
2016-09-03 14:38 ` Yury Norov
2016-09-03 14:48 ` Yury Norov
2016-09-05 15:16 ` Joseph Myers
2016-09-05 11:17 ` Stefan Liebler
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