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* [glibc/alistair/rv32.next] RISC-V: Hard float support for 32-bit
@ 2020-04-22 22:15 Alistair Francis
0 siblings, 0 replies; 2+ messages in thread
From: Alistair Francis @ 2020-04-22 22:15 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=0246f486e77f25e9e029549d4ca2ffb8ce56e451
commit 0246f486e77f25e9e029549d4ca2ffb8ce56e451
Author: Zong Li <zongbox@gmail.com>
Date: Fri Nov 30 17:16:38 2018 +0800
RISC-V: Hard float support for 32-bit
This patch contains hardware floating-point support for the RV32IF and
RV32IFD
Diff:
---
sysdeps/riscv/rv32/rvd/s_lrint.c | 31 +++++++++++++++++++++++++++++++
sysdeps/riscv/rv32/rvd/s_lround.c | 31 +++++++++++++++++++++++++++++++
sysdeps/riscv/rv32/rvf/s_lrintf.c | 31 +++++++++++++++++++++++++++++++
sysdeps/riscv/rv32/rvf/s_lroundf.c | 31 +++++++++++++++++++++++++++++++
4 files changed, 124 insertions(+)
diff --git a/sysdeps/riscv/rv32/rvd/s_lrint.c b/sysdeps/riscv/rv32/rvd/s_lrint.c
new file mode 100644
index 0000000000..df406aacb6
--- /dev/null
+++ b/sysdeps/riscv/rv32/rvd/s_lrint.c
@@ -0,0 +1,31 @@
+/* lrint(). RISC-V version.
+ Copyright (C) 2017-2020 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 <math.h>
+#include <libm-alias-double.h>
+#include <stdint.h>
+
+long int
+__lrint (double x)
+{
+ int32_t res;
+ asm ("fcvt.w.d %0, %1" : "=r" (res) : "f" (x));
+ return res;
+}
+
+libm_alias_double (__lrint, lrint)
diff --git a/sysdeps/riscv/rv32/rvd/s_lround.c b/sysdeps/riscv/rv32/rvd/s_lround.c
new file mode 100644
index 0000000000..72aa2b179d
--- /dev/null
+++ b/sysdeps/riscv/rv32/rvd/s_lround.c
@@ -0,0 +1,31 @@
+/* lround(). RISC-V version.
+ Copyright (C) 2017-2020 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 <math.h>
+#include <libm-alias-double.h>
+#include <stdint.h>
+
+long int
+__lround (double x)
+{
+ int32_t res;
+ asm ("fcvt.w.d %0, %1, rmm" : "=r" (res) : "f" (x));
+ return res;
+}
+
+libm_alias_double (__lround, lround)
diff --git a/sysdeps/riscv/rv32/rvf/s_lrintf.c b/sysdeps/riscv/rv32/rvf/s_lrintf.c
new file mode 100644
index 0000000000..08d44fa738
--- /dev/null
+++ b/sysdeps/riscv/rv32/rvf/s_lrintf.c
@@ -0,0 +1,31 @@
+/* lrintf(). RISC-V version.
+ Copyright (C) 2017-2018 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 <math.h>
+#include <libm-alias-float.h>
+#include <stdint.h>
+
+long int
+__lrintf (float x)
+{
+ int32_t res;
+ asm ("fcvt.w.s %0, %1" : "=r" (res) : "f" (x));
+ return res;
+}
+
+libm_alias_float (__lrint, lrint)
diff --git a/sysdeps/riscv/rv32/rvf/s_lroundf.c b/sysdeps/riscv/rv32/rvf/s_lroundf.c
new file mode 100644
index 0000000000..9ff5d63d1c
--- /dev/null
+++ b/sysdeps/riscv/rv32/rvf/s_lroundf.c
@@ -0,0 +1,31 @@
+/* lroundf(). RISC-V version.
+ Copyright (C) 2017-2020 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 <math.h>
+#include <libm-alias-float.h>
+#include <stdint.h>
+
+long int
+__lroundf (float x)
+{
+ int32_t res;
+ asm ("fcvt.w.s %0, %1, rmm" : "=r" (res) : "f" (x));
+ return res;
+}
+
+libm_alias_float (__lround, lround)
^ permalink raw reply [flat|nested] 2+ messages in thread
* [glibc/alistair/rv32.next] RISC-V: Hard float support for 32-bit
@ 2020-04-26 2:25 Alistair Francis
0 siblings, 0 replies; 2+ messages in thread
From: Alistair Francis @ 2020-04-26 2:25 UTC (permalink / raw)
To: glibc-cvs
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=fb57a299eca5ac10252618f2968500a54277ce8a
commit fb57a299eca5ac10252618f2968500a54277ce8a
Author: Zong Li <zongbox@gmail.com>
Date: Fri Nov 30 17:16:38 2018 +0800
RISC-V: Hard float support for 32-bit
This patch contains hardware floating-point support for the RV32IF and
RV32IFD
Diff:
---
sysdeps/riscv/rv32/rvd/s_lrint.c | 31 +++++++++++++++++++++++++++++++
sysdeps/riscv/rv32/rvd/s_lround.c | 31 +++++++++++++++++++++++++++++++
sysdeps/riscv/rv32/rvf/s_lrintf.c | 31 +++++++++++++++++++++++++++++++
sysdeps/riscv/rv32/rvf/s_lroundf.c | 31 +++++++++++++++++++++++++++++++
4 files changed, 124 insertions(+)
diff --git a/sysdeps/riscv/rv32/rvd/s_lrint.c b/sysdeps/riscv/rv32/rvd/s_lrint.c
new file mode 100644
index 0000000000..df406aacb6
--- /dev/null
+++ b/sysdeps/riscv/rv32/rvd/s_lrint.c
@@ -0,0 +1,31 @@
+/* lrint(). RISC-V version.
+ Copyright (C) 2017-2020 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 <math.h>
+#include <libm-alias-double.h>
+#include <stdint.h>
+
+long int
+__lrint (double x)
+{
+ int32_t res;
+ asm ("fcvt.w.d %0, %1" : "=r" (res) : "f" (x));
+ return res;
+}
+
+libm_alias_double (__lrint, lrint)
diff --git a/sysdeps/riscv/rv32/rvd/s_lround.c b/sysdeps/riscv/rv32/rvd/s_lround.c
new file mode 100644
index 0000000000..72aa2b179d
--- /dev/null
+++ b/sysdeps/riscv/rv32/rvd/s_lround.c
@@ -0,0 +1,31 @@
+/* lround(). RISC-V version.
+ Copyright (C) 2017-2020 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 <math.h>
+#include <libm-alias-double.h>
+#include <stdint.h>
+
+long int
+__lround (double x)
+{
+ int32_t res;
+ asm ("fcvt.w.d %0, %1, rmm" : "=r" (res) : "f" (x));
+ return res;
+}
+
+libm_alias_double (__lround, lround)
diff --git a/sysdeps/riscv/rv32/rvf/s_lrintf.c b/sysdeps/riscv/rv32/rvf/s_lrintf.c
new file mode 100644
index 0000000000..08d44fa738
--- /dev/null
+++ b/sysdeps/riscv/rv32/rvf/s_lrintf.c
@@ -0,0 +1,31 @@
+/* lrintf(). RISC-V version.
+ Copyright (C) 2017-2018 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 <math.h>
+#include <libm-alias-float.h>
+#include <stdint.h>
+
+long int
+__lrintf (float x)
+{
+ int32_t res;
+ asm ("fcvt.w.s %0, %1" : "=r" (res) : "f" (x));
+ return res;
+}
+
+libm_alias_float (__lrint, lrint)
diff --git a/sysdeps/riscv/rv32/rvf/s_lroundf.c b/sysdeps/riscv/rv32/rvf/s_lroundf.c
new file mode 100644
index 0000000000..9ff5d63d1c
--- /dev/null
+++ b/sysdeps/riscv/rv32/rvf/s_lroundf.c
@@ -0,0 +1,31 @@
+/* lroundf(). RISC-V version.
+ Copyright (C) 2017-2020 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 <math.h>
+#include <libm-alias-float.h>
+#include <stdint.h>
+
+long int
+__lroundf (float x)
+{
+ int32_t res;
+ asm ("fcvt.w.s %0, %1, rmm" : "=r" (res) : "f" (x));
+ return res;
+}
+
+libm_alias_float (__lround, lround)
^ permalink raw reply [flat|nested] 2+ messages in thread
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