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Diffstat (limited to 'sysdeps/x86_64/fpu/multiarch/svml_d_log108_core_avx512.S')
-rw-r--r--sysdeps/x86_64/fpu/multiarch/svml_d_log108_core_avx512.S299
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diff --git a/sysdeps/x86_64/fpu/multiarch/svml_d_log108_core_avx512.S b/sysdeps/x86_64/fpu/multiarch/svml_d_log108_core_avx512.S
new file mode 100644
index 0000000..0799f99
--- /dev/null
+++ b/sysdeps/x86_64/fpu/multiarch/svml_d_log108_core_avx512.S
@@ -0,0 +1,299 @@
+/* Function log10 vectorized with AVX-512.
+ Copyright (C) 2021 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/. */
+
+/*
+ * ALGORITHM DESCRIPTION:
+ *
+ * Get short reciprocal approximation Rcp ~ 1/mantissa(x)
+ * R = Rcp*x - 1.0
+ * log10(x) = k*log10(2.0) - log10(Rcp) + poly_approximation(R)
+ * log10(Rcp) is tabulated
+ *
+ *
+ */
+
+/* Offsets for data table __svml_dlog10_data_internal_avx512
+ */
+#define Log_tbl 0
+#define One 128
+#define C075 192
+#define poly_coeff9 256
+#define poly_coeff8 320
+#define poly_coeff7 384
+#define poly_coeff6 448
+#define poly_coeff5 512
+#define poly_coeff4 576
+#define poly_coeff3 640
+#define poly_coeff2 704
+#define poly_coeff1 768
+#define L2 832
+
+#include <sysdep.h>
+
+ .text
+ .section .text.evex512,"ax",@progbits
+ENTRY(_ZGVeN8v_log10_skx)
+ pushq %rbp
+ cfi_def_cfa_offset(16)
+ movq %rsp, %rbp
+ cfi_def_cfa(6, 16)
+ cfi_offset(6, -16)
+ andq $-64, %rsp
+ subq $192, %rsp
+ vmovaps %zmm0, %zmm7
+ vgetmantpd $8, {sae}, %zmm7, %zmm6
+ vmovups One+__svml_dlog10_data_internal_avx512(%rip), %zmm3
+ vmovups poly_coeff5+__svml_dlog10_data_internal_avx512(%rip), %zmm12
+ vmovups poly_coeff3+__svml_dlog10_data_internal_avx512(%rip), %zmm13
+
+/* Start polynomial evaluation */
+ vmovups poly_coeff9+__svml_dlog10_data_internal_avx512(%rip), %zmm10
+ vmovups poly_coeff8+__svml_dlog10_data_internal_avx512(%rip), %zmm1
+ vmovups poly_coeff7+__svml_dlog10_data_internal_avx512(%rip), %zmm11
+ vmovups poly_coeff6+__svml_dlog10_data_internal_avx512(%rip), %zmm14
+
+/* Prepare exponent correction: DblRcp<0.75? */
+ vmovups C075+__svml_dlog10_data_internal_avx512(%rip), %zmm2
+
+/* Table lookup */
+ vmovups __svml_dlog10_data_internal_avx512(%rip), %zmm5
+
+/* GetExp(x) */
+ vgetexppd {sae}, %zmm7, %zmm0
+
+/* DblRcp ~ 1/Mantissa */
+ vrcp14pd %zmm6, %zmm8
+
+/* x<=0? */
+ vfpclasspd $94, %zmm7, %k0
+
+/* round DblRcp to 4 fractional bits (RN mode, no Precision exception) */
+ vrndscalepd $88, {sae}, %zmm8, %zmm4
+ vmovups poly_coeff4+__svml_dlog10_data_internal_avx512(%rip), %zmm8
+ kmovw %k0, %edx
+
+/* Reduced argument: R = DblRcp*Mantissa - 1 */
+ vfmsub213pd {rn-sae}, %zmm3, %zmm4, %zmm6
+ vcmppd $17, {sae}, %zmm2, %zmm4, %k1
+ vfmadd231pd {rn-sae}, %zmm6, %zmm12, %zmm8
+ vmovups poly_coeff2+__svml_dlog10_data_internal_avx512(%rip), %zmm12
+ vfmadd231pd {rn-sae}, %zmm6, %zmm10, %zmm1
+ vfmadd231pd {rn-sae}, %zmm6, %zmm11, %zmm14
+ vmovups poly_coeff1+__svml_dlog10_data_internal_avx512(%rip), %zmm2
+
+/* R^2 */
+ vmulpd {rn-sae}, %zmm6, %zmm6, %zmm15
+ vfmadd231pd {rn-sae}, %zmm6, %zmm13, %zmm12
+
+/* Prepare table index */
+ vpsrlq $48, %zmm4, %zmm9
+
+/* add 1 to Expon if DblRcp<0.75 */
+ vaddpd {rn-sae}, %zmm3, %zmm0, %zmm0{%k1}
+ vmulpd {rn-sae}, %zmm15, %zmm15, %zmm13
+ vfmadd213pd {rn-sae}, %zmm14, %zmm15, %zmm1
+ vfmadd213pd {rn-sae}, %zmm12, %zmm15, %zmm8
+ vpermt2pd Log_tbl+64+__svml_dlog10_data_internal_avx512(%rip), %zmm9, %zmm5
+
+/* polynomial */
+ vfmadd213pd {rn-sae}, %zmm8, %zmm13, %zmm1
+ vfmadd213pd {rn-sae}, %zmm2, %zmm6, %zmm1
+ vfmadd213pd {rn-sae}, %zmm5, %zmm1, %zmm6
+ vmovups L2+__svml_dlog10_data_internal_avx512(%rip), %zmm1
+ vfmadd213pd {rn-sae}, %zmm6, %zmm1, %zmm0
+ testl %edx, %edx
+
+/* Go to special inputs processing branch */
+ jne L(SPECIAL_VALUES_BRANCH)
+ # LOE rbx r12 r13 r14 r15 edx zmm0 zmm7
+
+/* Restore registers
+ * and exit the function
+ */
+
+L(EXIT):
+ movq %rbp, %rsp
+ popq %rbp
+ cfi_def_cfa(7, 8)
+ cfi_restore(6)
+ ret
+ cfi_def_cfa(6, 16)
+ cfi_offset(6, -16)
+
+/* Branch to process
+ * special inputs
+ */
+
+L(SPECIAL_VALUES_BRANCH):
+ vmovups %zmm7, 64(%rsp)
+ vmovups %zmm0, 128(%rsp)
+ # LOE rbx r12 r13 r14 r15 edx zmm0
+
+ xorl %eax, %eax
+ # LOE rbx r12 r13 r14 r15 eax edx
+
+ vzeroupper
+ movq %r12, 16(%rsp)
+ /* DW_CFA_expression: r12 (r12) (DW_OP_lit8; DW_OP_minus; DW_OP_const4s: -64; DW_OP_and; DW_OP_const4s: -176; DW_OP_plus) */
+ .cfi_escape 0x10, 0x0c, 0x0e, 0x38, 0x1c, 0x0d, 0xc0, 0xff, 0xff, 0xff, 0x1a, 0x0d, 0x50, 0xff, 0xff, 0xff, 0x22
+ movl %eax, %r12d
+ movq %r13, 8(%rsp)
+ /* DW_CFA_expression: r13 (r13) (DW_OP_lit8; DW_OP_minus; DW_OP_const4s: -64; DW_OP_and; DW_OP_const4s: -184; DW_OP_plus) */
+ .cfi_escape 0x10, 0x0d, 0x0e, 0x38, 0x1c, 0x0d, 0xc0, 0xff, 0xff, 0xff, 0x1a, 0x0d, 0x48, 0xff, 0xff, 0xff, 0x22
+ movl %edx, %r13d
+ movq %r14, (%rsp)
+ /* DW_CFA_expression: r14 (r14) (DW_OP_lit8; DW_OP_minus; DW_OP_const4s: -64; DW_OP_and; DW_OP_const4s: -192; DW_OP_plus) */
+ .cfi_escape 0x10, 0x0e, 0x0e, 0x38, 0x1c, 0x0d, 0xc0, 0xff, 0xff, 0xff, 0x1a, 0x0d, 0x40, 0xff, 0xff, 0xff, 0x22
+ # LOE rbx r15 r12d r13d
+
+/* Range mask
+ * bits check
+ */
+
+L(RANGEMASK_CHECK):
+ btl %r12d, %r13d
+
+/* Call scalar math function */
+ jc L(SCALAR_MATH_CALL)
+ # LOE rbx r15 r12d r13d
+
+/* Special inputs
+ * processing loop
+ */
+
+L(SPECIAL_VALUES_LOOP):
+ incl %r12d
+ cmpl $8, %r12d
+
+/* Check bits in range mask */
+ jl L(RANGEMASK_CHECK)
+ # LOE rbx r15 r12d r13d
+
+ movq 16(%rsp), %r12
+ cfi_restore(12)
+ movq 8(%rsp), %r13
+ cfi_restore(13)
+ movq (%rsp), %r14
+ cfi_restore(14)
+ vmovups 128(%rsp), %zmm0
+
+/* Go to exit */
+ jmp L(EXIT)
+ /* DW_CFA_expression: r12 (r12) (DW_OP_lit8; DW_OP_minus; DW_OP_const4s: -64; DW_OP_and; DW_OP_const4s: -176; DW_OP_plus) */
+ .cfi_escape 0x10, 0x0c, 0x0e, 0x38, 0x1c, 0x0d, 0xc0, 0xff, 0xff, 0xff, 0x1a, 0x0d, 0x50, 0xff, 0xff, 0xff, 0x22
+ /* DW_CFA_expression: r13 (r13) (DW_OP_lit8; DW_OP_minus; DW_OP_const4s: -64; DW_OP_and; DW_OP_const4s: -184; DW_OP_plus) */
+ .cfi_escape 0x10, 0x0d, 0x0e, 0x38, 0x1c, 0x0d, 0xc0, 0xff, 0xff, 0xff, 0x1a, 0x0d, 0x48, 0xff, 0xff, 0xff, 0x22
+ /* DW_CFA_expression: r14 (r14) (DW_OP_lit8; DW_OP_minus; DW_OP_const4s: -64; DW_OP_and; DW_OP_const4s: -192; DW_OP_plus) */
+ .cfi_escape 0x10, 0x0e, 0x0e, 0x38, 0x1c, 0x0d, 0xc0, 0xff, 0xff, 0xff, 0x1a, 0x0d, 0x40, 0xff, 0xff, 0xff, 0x22
+ # LOE rbx r12 r13 r14 r15 zmm0
+
+/* Scalar math fucntion call
+ * to process special input
+ */
+
+L(SCALAR_MATH_CALL):
+ movl %r12d, %r14d
+ movsd 64(%rsp,%r14,8), %xmm0
+ call log10@PLT
+ # LOE rbx r14 r15 r12d r13d xmm0
+
+ movsd %xmm0, 128(%rsp,%r14,8)
+
+/* Process special inputs in loop */
+ jmp L(SPECIAL_VALUES_LOOP)
+ # LOE rbx r15 r12d r13d
+END(_ZGVeN8v_log10_skx)
+
+ .section .rodata, "a"
+ .align 64
+
+#ifdef __svml_dlog10_data_internal_avx512_typedef
+typedef unsigned int VUINT32;
+typedef struct {
+ __declspec(align(64)) VUINT32 Log_tbl[16][2];
+ __declspec(align(64)) VUINT32 One[8][2];
+ __declspec(align(64)) VUINT32 C075[8][2];
+ __declspec(align(64)) VUINT32 poly_coeff9[8][2];
+ __declspec(align(64)) VUINT32 poly_coeff8[8][2];
+ __declspec(align(64)) VUINT32 poly_coeff7[8][2];
+ __declspec(align(64)) VUINT32 poly_coeff6[8][2];
+ __declspec(align(64)) VUINT32 poly_coeff5[8][2];
+ __declspec(align(64)) VUINT32 poly_coeff4[8][2];
+ __declspec(align(64)) VUINT32 poly_coeff3[8][2];
+ __declspec(align(64)) VUINT32 poly_coeff2[8][2];
+ __declspec(align(64)) VUINT32 poly_coeff1[8][2];
+ __declspec(align(64)) VUINT32 L2[8][2];
+ } __svml_dlog10_data_internal_avx512;
+#endif
+__svml_dlog10_data_internal_avx512:
+ /*== Log_tbl ==*/
+ .quad 0x0000000000000000
+ .quad 0xbf9af5f92b00e610
+ .quad 0xbfaa30a9d609efea
+ .quad 0xbfb31b3055c47118
+ .quad 0xbfb8cf183886480d
+ .quad 0xbfbe3bc1ab0e19fe
+ .quad 0xbfc1b3e71ec94f7b
+ .quad 0xbfc42c7e7fe3fc02
+ .quad 0x3fbffbfc2bbc7803
+ .quad 0x3fbb721cd17157e3
+ .quad 0x3fb715d0ce367afc
+ .quad 0x3fb2e3a740b7800f
+ .quad 0x3fadb11ed766abf4
+ .quad 0x3fa5e3966b7e9295
+ .quad 0x3f9cb38fccd8bfdb
+ .quad 0x3f8c3d0837784c41
+ /*== One ==*/
+ .align 64
+ .quad 0x3ff0000000000000, 0x3ff0000000000000, 0x3ff0000000000000, 0x3ff0000000000000, 0x3ff0000000000000, 0x3ff0000000000000, 0x3ff0000000000000, 0x3ff0000000000000
+ /*== 0.75 ==*/
+ .align 64
+ .quad 0x3fe8000000000000, 0x3fe8000000000000, 0x3fe8000000000000, 0x3fe8000000000000, 0x3fe8000000000000, 0x3fe8000000000000, 0x3fe8000000000000, 0x3fe8000000000000
+ /*== poly_coeff9 ==*/
+ .align 64
+ .quad 0x3fa8c2d828480370, 0x3fa8c2d828480370, 0x3fa8c2d828480370, 0x3fa8c2d828480370, 0x3fa8c2d828480370, 0x3fa8c2d828480370, 0x3fa8c2d828480370, 0x3fa8c2d828480370
+ /*== poly_coeff8 ==*/
+ .align 64
+ .quad 0xbfabd80d96029814, 0xbfabd80d96029814, 0xbfabd80d96029814, 0xbfabd80d96029814, 0xbfabd80d96029814, 0xbfabd80d96029814, 0xbfabd80d96029814, 0xbfabd80d96029814
+ /*== poly_coeff7 ==*/
+ .align 64
+ .quad 0x3fafc3f6f38b58a2, 0x3fafc3f6f38b58a2, 0x3fafc3f6f38b58a2, 0x3fafc3f6f38b58a2, 0x3fafc3f6f38b58a2, 0x3fafc3f6f38b58a2, 0x3fafc3f6f38b58a2, 0x3fafc3f6f38b58a2
+ /*== poly_coeff6 ==*/
+ .align 64
+ .quad 0xbfb287a63464dc80, 0xbfb287a63464dc80, 0xbfb287a63464dc80, 0xbfb287a63464dc80, 0xbfb287a63464dc80, 0xbfb287a63464dc80, 0xbfb287a63464dc80, 0xbfb287a63464dc80
+ /*== poly_coeff5 ==*/
+ .align 64
+ .quad 0x3fb63c62777f27d9, 0x3fb63c62777f27d9, 0x3fb63c62777f27d9, 0x3fb63c62777f27d9, 0x3fb63c62777f27d9, 0x3fb63c62777f27d9, 0x3fb63c62777f27d9, 0x3fb63c62777f27d9
+ /*== poly_coeff4 ==*/
+ .align 64
+ .quad 0xbfbbcb7b153c06a3, 0xbfbbcb7b153c06a3, 0xbfbbcb7b153c06a3, 0xbfbbcb7b153c06a3, 0xbfbbcb7b153c06a3, 0xbfbbcb7b153c06a3, 0xbfbbcb7b153c06a3, 0xbfbbcb7b153c06a3
+ /*== poly_coeff3 ==*/
+ .align 64
+ .quad 0x3fc287a7636f428c, 0x3fc287a7636f428c, 0x3fc287a7636f428c, 0x3fc287a7636f428c, 0x3fc287a7636f428c, 0x3fc287a7636f428c, 0x3fc287a7636f428c, 0x3fc287a7636f428c
+ /*== poly_coeff2 ==*/
+ .align 64
+ .quad 0xbfcbcb7b1526e4db, 0xbfcbcb7b1526e4db, 0xbfcbcb7b1526e4db, 0xbfcbcb7b1526e4db, 0xbfcbcb7b1526e4db, 0xbfcbcb7b1526e4db, 0xbfcbcb7b1526e4db, 0xbfcbcb7b1526e4db
+ /*== poly_coeff1 ==*/
+ .align 64
+ .quad 0x3fdbcb7b1526e50e, 0x3fdbcb7b1526e50e, 0x3fdbcb7b1526e50e, 0x3fdbcb7b1526e50e, 0x3fdbcb7b1526e50e, 0x3fdbcb7b1526e50e, 0x3fdbcb7b1526e50e, 0x3fdbcb7b1526e50e
+ /*== L2 ==*/
+ .align 64
+ .quad 0x3fd34413509f79ff, 0x3fd34413509f79ff, 0x3fd34413509f79ff, 0x3fd34413509f79ff, 0x3fd34413509f79ff, 0x3fd34413509f79ff, 0x3fd34413509f79ff, 0x3fd34413509f79ff
+ .align 64
+ .type __svml_dlog10_data_internal_avx512,@object
+ .size __svml_dlog10_data_internal_avx512,.-__svml_dlog10_data_internal_avx512
generated by cgit v1.1 at 2024-08-26 03:15:44 +0000