Prepare for radical source tree reorganization.zack/build-layout-experiment

All top-level files and directories are moved into a temporary storage
directory, REORG.TODO, except for files that will certainly still
exist in their current form at top level when we're done (COPYING,
COPYING.LIB, LICENSES, NEWS, README), all old ChangeLog files (which
are moved to the new directory OldChangeLogs, instead), and the
generated file INSTALL (which is just deleted; in the new order, there
will be no generated files checked into version control).

1 files changed, 447 insertions, 0 deletions

diff --git a/REORG.TODO/sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core_avx512.S b/REORG.TODO/sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core_avx512.S
new file mode 100644
index 0000000000..e80b2be1a7
--- /dev/null
+++ b/REORG.TODO/sysdeps/x86_64/fpu/multiarch/svml_s_expf16_core_avx512.S
@@ -0,0 +1,447 @@
+/* Function expf vectorized with AVX-512. KNL and SKX versions.
+   Copyright (C) 2014-2017 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 <sysdep.h>
+#include "svml_s_expf_data.h"
+#include "svml_s_wrapper_impl.h"
+
+	.text
+ENTRY (_ZGVeN16v_expf_knl)
+#ifndef HAVE_AVX512DQ_ASM_SUPPORT
+WRAPPER_IMPL_AVX512 _ZGVdN8v_expf
+#else
+/*
+   ALGORITHM DESCRIPTION:
+
+     Argument representation:
+     M = rint(X*2^k/ln2) = 2^k*N+j
+     X = M*ln2/2^k + r = N*ln2 + ln2*(j/2^k) + r
+     then -ln2/2^(k+1) < r < ln2/2^(k+1)
+     Alternatively:
+     M = trunc(X*2^k/ln2)
+     then 0 < r < ln2/2^k
+
+     Result calculation:
+     exp(X) = exp(N*ln2 + ln2*(j/2^k) + r)
+     = 2^N * 2^(j/2^k) * exp(r)
+     2^N is calculated by bit manipulation
+     2^(j/2^k) is computed from table lookup
+     exp(r) is approximated by polynomial
+
+     The table lookup is skipped if k = 0.
+     For low accuracy approximation, exp(r) ~ 1 or 1+r.  */
+
+        pushq     %rbp
+        cfi_adjust_cfa_offset (8)
+        cfi_rel_offset (%rbp, 0)
+        movq      %rsp, %rbp
+        cfi_def_cfa_register (%rbp)
+        andq      $-64, %rsp
+        subq      $1280, %rsp
+        movq      __svml_sexp_data@GOTPCREL(%rip), %rax
+
+/* r = x-n*ln2_hi/2^k */
+        vmovaps   %zmm0, %zmm6
+
+/* compare against threshold */
+        movl      $-1, %ecx
+        vmovups   __sInvLn2(%rax), %zmm3
+        vmovups   __sLn2hi(%rax), %zmm5
+
+/* m = x*2^k/ln2 + shifter */
+        vfmadd213ps __sShifter(%rax), %zmm0, %zmm3
+        vmovups     __sPC5(%rax), %zmm9
+
+/* n = m - shifter = rint(x*2^k/ln2) */
+        vsubps    __sShifter(%rax), %zmm3, %zmm7
+
+/* remove sign of x by "and" operation */
+        vpandd   __iAbsMask(%rax), %zmm0, %zmm1
+        vpaddd   __iBias(%rax), %zmm3, %zmm4
+        vpcmpgtd __iDomainRange(%rax), %zmm1, %k1
+
+/* compute 2^N with "shift" */
+        vpslld       $23, %zmm4, %zmm8
+        vfnmadd231ps %zmm7, %zmm5, %zmm6
+        vpbroadcastd %ecx, %zmm2{%k1}{z}
+
+/* r = r-n*ln2_lo/2^k = x - n*ln2/2^k */
+        vfnmadd132ps __sLn2lo(%rax), %zmm6, %zmm7
+
+/* set mask for overflow/underflow */
+        vptestmd  %zmm2, %zmm2, %k0
+        kmovw     %k0, %ecx
+
+/* c5*r+c4 */
+        vfmadd213ps __sPC4(%rax), %zmm7, %zmm9
+
+/* (c5*r+c4)*r+c3 */
+        vfmadd213ps __sPC3(%rax), %zmm7, %zmm9
+
+/* ((c5*r+c4)*r+c3)*r+c2 */
+        vfmadd213ps __sPC2(%rax), %zmm7, %zmm9
+
+/* (((c5*r+c4)*r+c3)*r+c2)*r+c1 */
+        vfmadd213ps __sPC1(%rax), %zmm7, %zmm9
+
+/* exp(r) = ((((c5*r+c4)*r+c3)*r+c2)*r+c1)*r+c0 */
+        vfmadd213ps __sPC0(%rax), %zmm7, %zmm9
+
+/* 2^N*exp(r) */
+        vmulps    %zmm9, %zmm8, %zmm1
+        testl     %ecx, %ecx
+        jne       .LBL_1_3
+
+.LBL_1_2:
+        cfi_remember_state
+        vmovaps   %zmm1, %zmm0
+        movq      %rbp, %rsp
+        cfi_def_cfa_register (%rsp)
+        popq      %rbp
+        cfi_adjust_cfa_offset (-8)
+        cfi_restore (%rbp)
+        ret
+
+.LBL_1_3:
+        cfi_restore_state
+        vmovups   %zmm0, 1152(%rsp)
+        vmovups   %zmm1, 1216(%rsp)
+        je        .LBL_1_2
+
+        xorb      %dl, %dl
+        kmovw     %k4, 1048(%rsp)
+        xorl      %eax, %eax
+        kmovw     %k5, 1040(%rsp)
+        kmovw     %k6, 1032(%rsp)
+        kmovw     %k7, 1024(%rsp)
+        vmovups   %zmm16, 960(%rsp)
+        vmovups   %zmm17, 896(%rsp)
+        vmovups   %zmm18, 832(%rsp)
+        vmovups   %zmm19, 768(%rsp)
+        vmovups   %zmm20, 704(%rsp)
+        vmovups   %zmm21, 640(%rsp)
+        vmovups   %zmm22, 576(%rsp)
+        vmovups   %zmm23, 512(%rsp)
+        vmovups   %zmm24, 448(%rsp)
+        vmovups   %zmm25, 384(%rsp)
+        vmovups   %zmm26, 320(%rsp)
+        vmovups   %zmm27, 256(%rsp)
+        vmovups   %zmm28, 192(%rsp)
+        vmovups   %zmm29, 128(%rsp)
+        vmovups   %zmm30, 64(%rsp)
+        vmovups   %zmm31, (%rsp)
+        movq      %rsi, 1064(%rsp)
+        movq      %rdi, 1056(%rsp)
+        movq      %r12, 1096(%rsp)
+        cfi_offset_rel_rsp (12, 1096)
+        movb      %dl, %r12b
+        movq      %r13, 1088(%rsp)
+        cfi_offset_rel_rsp (13, 1088)
+        movl      %ecx, %r13d
+        movq      %r14, 1080(%rsp)
+        cfi_offset_rel_rsp (14, 1080)
+        movl      %eax, %r14d
+        movq      %r15, 1072(%rsp)
+        cfi_offset_rel_rsp (15, 1072)
+        cfi_remember_state
+
+.LBL_1_6:
+        btl       %r14d, %r13d
+        jc        .LBL_1_12
+
+.LBL_1_7:
+        lea       1(%r14), %esi
+        btl       %esi, %r13d
+        jc        .LBL_1_10
+
+.LBL_1_8:
+        addb      $1, %r12b
+        addl      $2, %r14d
+        cmpb      $16, %r12b
+        jb        .LBL_1_6
+
+        kmovw     1048(%rsp), %k4
+        movq      1064(%rsp), %rsi
+        kmovw     1040(%rsp), %k5
+        movq      1056(%rsp), %rdi
+        kmovw     1032(%rsp), %k6
+        movq      1096(%rsp), %r12
+        cfi_restore (%r12)
+        movq      1088(%rsp), %r13
+        cfi_restore (%r13)
+        kmovw     1024(%rsp), %k7
+        vmovups   960(%rsp), %zmm16
+        vmovups   896(%rsp), %zmm17
+        vmovups   832(%rsp), %zmm18
+        vmovups   768(%rsp), %zmm19
+        vmovups   704(%rsp), %zmm20
+        vmovups   640(%rsp), %zmm21
+        vmovups   576(%rsp), %zmm22
+        vmovups   512(%rsp), %zmm23
+        vmovups   448(%rsp), %zmm24
+        vmovups   384(%rsp), %zmm25
+        vmovups   320(%rsp), %zmm26
+        vmovups   256(%rsp), %zmm27
+        vmovups   192(%rsp), %zmm28
+        vmovups   128(%rsp), %zmm29
+        vmovups   64(%rsp), %zmm30
+        vmovups   (%rsp), %zmm31
+        movq      1080(%rsp), %r14
+        cfi_restore (%r14)
+        movq      1072(%rsp), %r15
+        cfi_restore (%r15)
+        vmovups   1216(%rsp), %zmm1
+        jmp       .LBL_1_2
+
+.LBL_1_10:
+        cfi_restore_state
+        movzbl    %r12b, %r15d
+        vmovss    1156(%rsp,%r15,8), %xmm0
+        call      JUMPTARGET(__expf_finite)
+        vmovss    %xmm0, 1220(%rsp,%r15,8)
+        jmp       .LBL_1_8
+
+.LBL_1_12:
+        movzbl    %r12b, %r15d
+        vmovss    1152(%rsp,%r15,8), %xmm0
+        call      JUMPTARGET(__expf_finite)
+        vmovss    %xmm0, 1216(%rsp,%r15,8)
+        jmp       .LBL_1_7
+
+#endif
+END (_ZGVeN16v_expf_knl)
+
+ENTRY (_ZGVeN16v_expf_skx)
+#ifndef HAVE_AVX512DQ_ASM_SUPPORT
+WRAPPER_IMPL_AVX512 _ZGVdN8v_expf
+#else
+/*
+   ALGORITHM DESCRIPTION:
+
+     Argument representation:
+     M = rint(X*2^k/ln2) = 2^k*N+j
+     X = M*ln2/2^k + r = N*ln2 + ln2*(j/2^k) + r
+     then -ln2/2^(k+1) < r < ln2/2^(k+1)
+     Alternatively:
+     M = trunc(X*2^k/ln2)
+     then 0 < r < ln2/2^k
+
+     Result calculation:
+     exp(X) = exp(N*ln2 + ln2*(j/2^k) + r)
+     = 2^N * 2^(j/2^k) * exp(r)
+     2^N is calculated by bit manipulation
+     2^(j/2^k) is computed from table lookup
+     exp(r) is approximated by polynomial
+
+     The table lookup is skipped if k = 0.
+     For low accuracy approximation, exp(r) ~ 1 or 1+r.  */
+
+        pushq     %rbp
+        cfi_adjust_cfa_offset (8)
+        cfi_rel_offset (%rbp, 0)
+        movq      %rsp, %rbp
+        cfi_def_cfa_register (%rbp)
+        andq      $-64, %rsp
+        subq      $1280, %rsp
+        movq      __svml_sexp_data@GOTPCREL(%rip), %rax
+
+/* r = x-n*ln2_hi/2^k */
+        vmovaps   %zmm0, %zmm7
+
+/* compare against threshold */
+        vmovups   .L_2il0floatpacket.13(%rip), %zmm3
+        vmovups __sInvLn2(%rax), %zmm4
+        vmovups __sShifter(%rax), %zmm1
+        vmovups __sLn2hi(%rax), %zmm6
+        vmovups __sPC5(%rax), %zmm10
+
+/* m = x*2^k/ln2 + shifter */
+        vfmadd213ps %zmm1, %zmm0, %zmm4
+
+/* n = m - shifter = rint(x*2^k/ln2) */
+        vsubps    %zmm1, %zmm4, %zmm8
+        vpaddd __iBias(%rax), %zmm4, %zmm5
+        vfnmadd231ps %zmm8, %zmm6, %zmm7
+
+/* compute 2^N with "shift" */
+        vpslld    $23, %zmm5, %zmm9
+
+/* r = r-n*ln2_lo/2^k = x - n*ln2/2^k */
+        vfnmadd132ps __sLn2lo(%rax), %zmm7, %zmm8
+
+/* c5*r+c4 */
+        vfmadd213ps __sPC4(%rax), %zmm8, %zmm10
+
+/* (c5*r+c4)*r+c3 */
+        vfmadd213ps __sPC3(%rax), %zmm8, %zmm10
+
+/* ((c5*r+c4)*r+c3)*r+c2 */
+        vfmadd213ps __sPC2(%rax), %zmm8, %zmm10
+
+/* (((c5*r+c4)*r+c3)*r+c2)*r+c1 */
+        vfmadd213ps __sPC1(%rax), %zmm8, %zmm10
+
+/* exp(r) = ((((c5*r+c4)*r+c3)*r+c2)*r+c1)*r+c0 */
+        vfmadd213ps __sPC0(%rax), %zmm8, %zmm10
+
+/* 2^N*exp(r) */
+        vmulps    %zmm10, %zmm9, %zmm1
+
+/* remove sign of x by "and" operation */
+        vpandd __iAbsMask(%rax), %zmm0, %zmm2
+        vpcmpd    $2, __iDomainRange(%rax), %zmm2, %k1
+        vpandnd   %zmm2, %zmm2, %zmm3{%k1}
+
+/* set mask for overflow/underflow */
+        vptestmd  %zmm3, %zmm3, %k0
+        kmovw     %k0, %ecx
+        testl     %ecx, %ecx
+        jne       .LBL_2_3
+
+.LBL_2_2:
+        cfi_remember_state
+        vmovaps   %zmm1, %zmm0
+        movq      %rbp, %rsp
+        cfi_def_cfa_register (%rsp)
+        popq      %rbp
+        cfi_adjust_cfa_offset (-8)
+        cfi_restore (%rbp)
+        ret
+
+.LBL_2_3:
+        cfi_restore_state
+        vmovups   %zmm0, 1152(%rsp)
+        vmovups   %zmm1, 1216(%rsp)
+        je        .LBL_2_2
+
+        xorb      %dl, %dl
+        xorl      %eax, %eax
+        kmovw     %k4, 1048(%rsp)
+        kmovw     %k5, 1040(%rsp)
+        kmovw     %k6, 1032(%rsp)
+        kmovw     %k7, 1024(%rsp)
+        vmovups   %zmm16, 960(%rsp)
+        vmovups   %zmm17, 896(%rsp)
+        vmovups   %zmm18, 832(%rsp)
+        vmovups   %zmm19, 768(%rsp)
+        vmovups   %zmm20, 704(%rsp)
+        vmovups   %zmm21, 640(%rsp)
+        vmovups   %zmm22, 576(%rsp)
+        vmovups   %zmm23, 512(%rsp)
+        vmovups   %zmm24, 448(%rsp)
+        vmovups   %zmm25, 384(%rsp)
+        vmovups   %zmm26, 320(%rsp)
+        vmovups   %zmm27, 256(%rsp)
+        vmovups   %zmm28, 192(%rsp)
+        vmovups   %zmm29, 128(%rsp)
+        vmovups   %zmm30, 64(%rsp)
+        vmovups   %zmm31, (%rsp)
+        movq      %rsi, 1064(%rsp)
+        movq      %rdi, 1056(%rsp)
+        movq      %r12, 1096(%rsp)
+        cfi_offset_rel_rsp (12, 1096)
+        movb      %dl, %r12b
+        movq      %r13, 1088(%rsp)
+        cfi_offset_rel_rsp (13, 1088)
+        movl      %ecx, %r13d
+        movq      %r14, 1080(%rsp)
+        cfi_offset_rel_rsp (14, 1080)
+        movl      %eax, %r14d
+        movq      %r15, 1072(%rsp)
+        cfi_offset_rel_rsp (15, 1072)
+        cfi_remember_state
+
+
+.LBL_2_6:
+        btl       %r14d, %r13d
+        jc        .LBL_2_12
+
+.LBL_2_7:
+        lea       1(%r14), %esi
+        btl       %esi, %r13d
+        jc        .LBL_2_10
+
+.LBL_2_8:
+        incb      %r12b
+        addl      $2, %r14d
+        cmpb      $16, %r12b
+        jb        .LBL_2_6
+
+        kmovw     1048(%rsp), %k4
+        kmovw     1040(%rsp), %k5
+        kmovw     1032(%rsp), %k6
+        kmovw     1024(%rsp), %k7
+        vmovups   960(%rsp), %zmm16
+        vmovups   896(%rsp), %zmm17
+        vmovups   832(%rsp), %zmm18
+        vmovups   768(%rsp), %zmm19
+        vmovups   704(%rsp), %zmm20
+        vmovups   640(%rsp), %zmm21
+        vmovups   576(%rsp), %zmm22
+        vmovups   512(%rsp), %zmm23
+        vmovups   448(%rsp), %zmm24
+        vmovups   384(%rsp), %zmm25
+        vmovups   320(%rsp), %zmm26
+        vmovups   256(%rsp), %zmm27
+        vmovups   192(%rsp), %zmm28
+        vmovups   128(%rsp), %zmm29
+        vmovups   64(%rsp), %zmm30
+        vmovups   (%rsp), %zmm31
+        vmovups   1216(%rsp), %zmm1
+        movq      1064(%rsp), %rsi
+        movq      1056(%rsp), %rdi
+        movq      1096(%rsp), %r12
+        cfi_restore (%r12)
+        movq      1088(%rsp), %r13
+        cfi_restore (%r13)
+        movq      1080(%rsp), %r14
+        cfi_restore (%r14)
+        movq      1072(%rsp), %r15
+        cfi_restore (%r15)
+        jmp       .LBL_2_2
+
+.LBL_2_10:
+        cfi_restore_state
+        movzbl    %r12b, %r15d
+        vmovss    1156(%rsp,%r15,8), %xmm0
+        vzeroupper
+        vmovss    1156(%rsp,%r15,8), %xmm0
+
+        call      JUMPTARGET(__expf_finite)
+
+        vmovss    %xmm0, 1220(%rsp,%r15,8)
+        jmp       .LBL_2_8
+
+.LBL_2_12:
+        movzbl    %r12b, %r15d
+        vmovss    1152(%rsp,%r15,8), %xmm0
+        vzeroupper
+        vmovss    1152(%rsp,%r15,8), %xmm0
+
+        call      JUMPTARGET(__expf_finite)
+
+        vmovss    %xmm0, 1216(%rsp,%r15,8)
+        jmp       .LBL_2_7
+
+#endif
+END (_ZGVeN16v_expf_skx)
+
+	.section .rodata, "a"
+.L_2il0floatpacket.13:
+	.long	0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff,0xffffffff
+	.type	.L_2il0floatpacket.13,@object