x86: Create header for VEC classes in x86 strings library

This patch does not touch any existing code and is only meant to be a
tool for future patches so that simple source files can more easily be
maintained to target multiple VEC classes.

There is no difference in the objdump of libc.so before and after this
patch.
Reviewed-by: H.J. Lu <hjl.tools@gmail.com>

diff --git a/sysdeps/x86_64/multiarch/avx-rtm-vecs.h b/sysdeps/x86_64/multiarch/avx-rtm-vecs.h
new file mode 100644 (file)
index 0000000..3f531dd
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/avx-rtm-vecs.h
@@ -0,0 +1,34 @@
+/* Common config for AVX-RTM VECs
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _AVX_RTM_VECS_H
+#define _AVX_RTM_VECS_H                        1
+
+#define ZERO_UPPER_VEC_REGISTERS_RETURN        \
+       ZERO_UPPER_VEC_REGISTERS_RETURN_XTEST
+
+#define VZEROUPPER_RETURN              jmp L(return_vzeroupper)
+
+#define USE_WITH_RTM                   1
+#include "avx-vecs.h"
+
+#undef SECTION
+#define SECTION(p)                             p##.avx.rtm
+
+#endif

diff --git a/sysdeps/x86_64/multiarch/avx-vecs.h b/sysdeps/x86_64/multiarch/avx-vecs.h
new file mode 100644 (file)
index 0000000..89680f5
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/avx-vecs.h
@@ -0,0 +1,47 @@
+/* Common config for AVX VECs
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _AVX_VECS_H
+#define _AVX_VECS_H                    1
+
+#ifdef VEC_SIZE
+# error "Multiple VEC configs included!"
+#endif
+
+#define VEC_SIZE                       32
+#include "vec-macros.h"
+
+#define USE_WITH_AVX           1
+#define SECTION(p)                     p##.avx
+
+/* 4-byte mov instructions with AVX2.  */
+#define MOV_SIZE                       4
+/* 1 (ret) + 3 (vzeroupper).  */
+#define RET_SIZE                       4
+#define VZEROUPPER                     vzeroupper
+
+#define VMOVU                          vmovdqu
+#define VMOVA                          vmovdqa
+#define VMOVNT                         vmovntdq
+
+/* Often need to access xmm portion.  */
+#define VEC_xmm                                VEC_any_xmm
+#define VEC                                    VEC_any_ymm
+
+#endif

diff --git a/sysdeps/x86_64/multiarch/evex-vecs-common.h b/sysdeps/x86_64/multiarch/evex-vecs-common.h
new file mode 100644 (file)
index 0000000..99806eb
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/evex-vecs-common.h
@@ -0,0 +1,39 @@
+/* Common config for EVEX256 and EVEX512 VECs
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _EVEX_VECS_COMMON_H
+#define _EVEX_VECS_COMMON_H                    1
+
+#include "vec-macros.h"
+
+/* 6-byte mov instructions with EVEX.  */
+#define MOV_SIZE                       6
+/* No vzeroupper needed.  */
+#define RET_SIZE                       1
+#define VZEROUPPER
+
+#define VMOVU                          vmovdqu64
+#define VMOVA                          vmovdqa64
+#define VMOVNT                         vmovntdq
+
+#define VEC_xmm                                VEC_hi_xmm
+#define VEC_ymm                                VEC_hi_ymm
+#define VEC_zmm                                VEC_hi_zmm
+
+#endif

diff --git a/sysdeps/x86_64/multiarch/evex256-vecs.h b/sysdeps/x86_64/multiarch/evex256-vecs.h
new file mode 100644 (file)
index 0000000..222ba46
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/evex256-vecs.h
@@ -0,0 +1,35 @@
+/* Common config for EVEX256 VECs
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _EVEX256_VECS_H
+#define _EVEX256_VECS_H                        1
+
+#ifdef VEC_SIZE
+# error "Multiple VEC configs included!"
+#endif
+
+#define VEC_SIZE                       32
+#include "evex-vecs-common.h"
+
+#define USE_WITH_EVEX256       1
+#define SECTION(p)                     p##.evex
+
+#define VEC                                    VEC_ymm
+
+#endif

diff --git a/sysdeps/x86_64/multiarch/evex512-vecs.h b/sysdeps/x86_64/multiarch/evex512-vecs.h
new file mode 100644 (file)
index 0000000..d1784d5
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/evex512-vecs.h
@@ -0,0 +1,35 @@
+/* Common config for EVEX512 VECs
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _EVEX512_VECS_H
+#define _EVEX512_VECS_H                        1
+
+#ifdef VEC_SIZE
+# error "Multiple VEC configs included!"
+#endif
+
+#define VEC_SIZE                       64
+#include "evex-vecs-common.h"
+
+#define USE_WITH_EVEX512       1
+#define SECTION(p)                     p##.evex512
+
+#define VEC                                    VEC_zmm
+
+#endif

diff --git a/sysdeps/x86_64/multiarch/sse2-vecs.h b/sysdeps/x86_64/multiarch/sse2-vecs.h
new file mode 100644 (file)
index 0000000..2b77a59
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/sse2-vecs.h
@@ -0,0 +1,47 @@
+/* Common config for SSE2 VECs
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _SSE2_VECS_H
+#define _SSE2_VECS_H                   1
+
+#ifdef VEC_SIZE
+# error "Multiple VEC configs included!"
+#endif
+
+#define VEC_SIZE                       16
+#include "vec-macros.h"
+
+#define USE_WITH_SSE2          1
+#define SECTION(p)                     p
+
+/* 3-byte mov instructions with SSE2.  */
+#define MOV_SIZE                       3
+/* No vzeroupper needed.  */
+#define RET_SIZE                       1
+#define VZEROUPPER
+
+#define VMOVU                          movups
+#define VMOVA                          movaps
+#define VMOVNT                         movntdq
+
+#define VEC_xmm                                VEC_any_xmm
+#define VEC                                    VEC_any_xmm
+
+
+#endif

diff --git a/sysdeps/x86_64/multiarch/vec-macros.h b/sysdeps/x86_64/multiarch/vec-macros.h
new file mode 100644 (file)
index 0000000..9f3ffec
--- /dev/null
+++ b/sysdeps/x86_64/multiarch/vec-macros.h
@@ -0,0 +1,90 @@
+/* Macro helpers for VEC_{type}({vec_num})
+   All versions must be listed in ifunc-impl-list.c.
+   Copyright (C) 2022 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
+   <https://www.gnu.org/licenses/>.  */
+
+#ifndef _VEC_MACROS_H
+#define _VEC_MACROS_H                  1
+
+#ifndef VEC_SIZE
+# error "Never include this file directly. Always include a vector config."
+#endif
+
+/* Defines so we can use SSE2 / AVX2 / EVEX / EVEX512 encoding with same
+   VEC(N) values.  */
+#define VEC_hi_xmm0                            xmm16
+#define VEC_hi_xmm1                            xmm17
+#define VEC_hi_xmm2                            xmm18
+#define VEC_hi_xmm3                            xmm19
+#define VEC_hi_xmm4                            xmm20
+#define VEC_hi_xmm5                            xmm21
+#define VEC_hi_xmm6                            xmm22
+#define VEC_hi_xmm7                            xmm23
+#define VEC_hi_xmm8                            xmm24
+#define VEC_hi_xmm9                            xmm25
+#define VEC_hi_xmm10                   xmm26
+#define VEC_hi_xmm11                   xmm27
+#define VEC_hi_xmm12                   xmm28
+#define VEC_hi_xmm13                   xmm29
+#define VEC_hi_xmm14                   xmm30
+#define VEC_hi_xmm15                   xmm31
+
+#define VEC_hi_ymm0                            ymm16
+#define VEC_hi_ymm1                            ymm17
+#define VEC_hi_ymm2                            ymm18
+#define VEC_hi_ymm3                            ymm19
+#define VEC_hi_ymm4                            ymm20
+#define VEC_hi_ymm5                            ymm21
+#define VEC_hi_ymm6                            ymm22
+#define VEC_hi_ymm7                            ymm23
+#define VEC_hi_ymm8                            ymm24
+#define VEC_hi_ymm9                            ymm25
+#define VEC_hi_ymm10                   ymm26
+#define VEC_hi_ymm11                   ymm27
+#define VEC_hi_ymm12                   ymm28
+#define VEC_hi_ymm13                   ymm29
+#define VEC_hi_ymm14                   ymm30
+#define VEC_hi_ymm15                   ymm31
+
+#define VEC_hi_zmm0                            zmm16
+#define VEC_hi_zmm1                            zmm17
+#define VEC_hi_zmm2                            zmm18
+#define VEC_hi_zmm3                            zmm19
+#define VEC_hi_zmm4                            zmm20
+#define VEC_hi_zmm5                            zmm21
+#define VEC_hi_zmm6                            zmm22
+#define VEC_hi_zmm7                            zmm23
+#define VEC_hi_zmm8                            zmm24
+#define VEC_hi_zmm9                            zmm25
+#define VEC_hi_zmm10                   zmm26
+#define VEC_hi_zmm11                   zmm27
+#define VEC_hi_zmm12                   zmm28
+#define VEC_hi_zmm13                   zmm29
+#define VEC_hi_zmm14                   zmm30
+#define VEC_hi_zmm15                   zmm31
+
+#define PRIMITIVE_VEC(vec, num)                vec##num
+
+#define VEC_any_xmm(i)                 PRIMITIVE_VEC(xmm, i)
+#define VEC_any_ymm(i)                 PRIMITIVE_VEC(ymm, i)
+#define VEC_any_zmm(i)                 PRIMITIVE_VEC(zmm, i)
+
+#define VEC_hi_xmm(i)                  PRIMITIVE_VEC(VEC_hi_xmm, i)
+#define VEC_hi_ymm(i)                  PRIMITIVE_VEC(VEC_hi_ymm, i)
+#define VEC_hi_zmm(i)                  PRIMITIVE_VEC(VEC_hi_zmm, i)
+
+#endif