Adding upstream version 1.20.14.upstream/1.20.14upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 156 insertions, 0 deletions

diff --git a/src/math/log10_s390x.s b/src/math/log10_s390x.s
new file mode 100644
index 0000000..3638afe
--- /dev/null
+++ b/src/math/log10_s390x.s
@@ -0,0 +1,156 @@
+// Copyright 2016 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+#include "textflag.h"
+
+// Minimax polynomial coefficients and other constants
+DATA log10rodataL19<>+0(SB)/8, $0.000000000000000000E+00
+DATA log10rodataL19<>+8(SB)/8, $-1.0
+DATA log10rodataL19<>+16(SB)/8, $0x7FF8000000000000   //+NanN
+DATA log10rodataL19<>+24(SB)/8, $.15375570329280596749
+DATA log10rodataL19<>+32(SB)/8, $.60171950900703668594E+04
+DATA log10rodataL19<>+40(SB)/8, $-1.9578460454940795898
+DATA log10rodataL19<>+48(SB)/8, $0.78962633073318517310E-01
+DATA log10rodataL19<>+56(SB)/8, $-.71784211884836937993E-02
+DATA log10rodataL19<>+64(SB)/8, $0.87011165920689940661E-03
+DATA log10rodataL19<>+72(SB)/8, $-.11865158981621437541E-03
+DATA log10rodataL19<>+80(SB)/8, $0.17258413403018680410E-04
+DATA log10rodataL19<>+88(SB)/8, $0.40752932047883484315E-06
+DATA log10rodataL19<>+96(SB)/8, $-.26149194688832680410E-05
+DATA log10rodataL19<>+104(SB)/8, $0.92453396963875026759E-08
+DATA log10rodataL19<>+112(SB)/8, $-.64572084905921579630E-07
+DATA log10rodataL19<>+120(SB)/8, $-5.5
+DATA log10rodataL19<>+128(SB)/8, $18446744073709551616.
+GLOBL log10rodataL19<>+0(SB), RODATA, $136
+
+// Table of log10 correction terms
+DATA log10tab2074<>+0(SB)/8, $0.254164497922885069E-01
+DATA log10tab2074<>+8(SB)/8, $0.179018857989381839E-01
+DATA log10tab2074<>+16(SB)/8, $0.118926768029048674E-01
+DATA log10tab2074<>+24(SB)/8, $0.722595568238080033E-02
+DATA log10tab2074<>+32(SB)/8, $0.376393570022739135E-02
+DATA log10tab2074<>+40(SB)/8, $0.138901135928814326E-02
+DATA log10tab2074<>+48(SB)/8, $0
+DATA log10tab2074<>+56(SB)/8, $-0.490780466387818203E-03
+DATA log10tab2074<>+64(SB)/8, $-0.159811431402137571E-03
+DATA log10tab2074<>+72(SB)/8, $0.925796337165100494E-03
+DATA log10tab2074<>+80(SB)/8, $0.270683176738357035E-02
+DATA log10tab2074<>+88(SB)/8, $0.513079030821304758E-02
+DATA log10tab2074<>+96(SB)/8, $0.815089785397996303E-02
+DATA log10tab2074<>+104(SB)/8, $0.117253060262419215E-01
+DATA log10tab2074<>+112(SB)/8, $0.158164239345343963E-01
+DATA log10tab2074<>+120(SB)/8, $0.203903595489229786E-01
+GLOBL log10tab2074<>+0(SB), RODATA, $128
+
+// Log10 returns the decimal logarithm of the argument.
+//
+// Special cases are:
+//      Log(+Inf) = +Inf
+//      Log(0) = -Inf
+//      Log(x < 0) = NaN
+//      Log(NaN) = NaN
+// The algorithm used is minimax polynomial approximation
+// with coefficients determined with a Remez exchange algorithm.
+
+TEXT ·log10Asm(SB),NOSPLIT,$8-16
+	FMOVD   x+0(FP), F0
+	MOVD    $log10rodataL19<>+0(SB), R9
+	FMOVD   F0, x-8(SP)
+	WORD    $0xC0298006     //iilf %r2,2147909631
+	BYTE    $0x7F
+	BYTE    $0xFF
+	WORD    $0x5840F008     //l %r4, 8(%r15)
+	SUBW    R4, R2, R3
+	RISBGZ	$32, $47, $0, R3, R5
+	MOVH    $0x0, R1
+	RISBGN	$0, $31, $32, R5, R1
+	WORD    $0xC0590016     //iilf %r5,1507327
+	BYTE    $0xFF
+	BYTE    $0xFF
+	MOVW    R4, R10
+	MOVW    R5, R11
+	CMPBLE  R10, R11, L2
+	WORD    $0xC0297FEF     //iilf %r2,2146435071
+	BYTE    $0xFF
+	BYTE    $0xFF
+	MOVW    R4, R10
+	MOVW    R2, R11
+	CMPBLE  R10, R11, L16
+L3:
+L1:
+	FMOVD   F0, ret+8(FP)
+	RET
+
+L2:
+	LTDBR	F0, F0
+	BLEU    L13
+	WORD    $0xED009080     //mdb %f0,.L20-.L19(%r9)
+	BYTE    $0x00
+	BYTE    $0x1C
+	FMOVD   F0, x-8(SP)
+	WORD    $0x5B20F008     //s %r2, 8(%r15)
+	RISBGZ	$57, $60, $51, R2, R3
+	ANDW    $0xFFFF0000, R2
+	RISBGN	$0, $31, $32, R2, R1
+	ADDW    $0x4000000, R2
+	BLEU    L17
+L8:
+	SRW     $8, R2, R2
+	ORW     $0x45000000, R2
+L4:
+	FMOVD   log10rodataL19<>+120(SB), F2
+	LDGR    R1, F4
+	WFMADB  V4, V0, V2, V0
+	FMOVD   log10rodataL19<>+112(SB), F4
+	FMOVD   log10rodataL19<>+104(SB), F6
+	WFMADB  V0, V6, V4, V6
+	FMOVD   log10rodataL19<>+96(SB), F4
+	FMOVD   log10rodataL19<>+88(SB), F1
+	WFMADB  V0, V1, V4, V1
+	WFMDB   V0, V0, V4
+	FMOVD   log10rodataL19<>+80(SB), F2
+	WFMADB  V6, V4, V1, V6
+	FMOVD   log10rodataL19<>+72(SB), F1
+	WFMADB  V0, V2, V1, V2
+	FMOVD   log10rodataL19<>+64(SB), F1
+	RISBGZ	$57, $60, $0, R3, R3
+	WFMADB  V4, V6, V2, V6
+	FMOVD   log10rodataL19<>+56(SB), F2
+	WFMADB  V0, V1, V2, V1
+	VLVGF   $0, R2, V2
+	WFMADB  V4, V6, V1, V4
+	LDEBR   F2, F2
+	FMOVD   log10rodataL19<>+48(SB), F6
+	WFMADB  V0, V4, V6, V4
+	FMOVD   log10rodataL19<>+40(SB), F1
+	FMOVD   log10rodataL19<>+32(SB), F6
+	MOVD    $log10tab2074<>+0(SB), R1
+	WFMADB  V2, V1, V6, V2
+	WORD    $0x68331000     //ld %f3,0(%r3,%r1)
+	WFMADB  V0, V4, V3, V0
+	FMOVD   log10rodataL19<>+24(SB), F4
+	FMADD   F4, F2, F0
+	FMOVD   F0, ret+8(FP)
+	RET
+
+L16:
+	RISBGZ	$40, $55, $56, R3, R2
+	RISBGZ	$57, $60, $51, R3, R3
+	ORW     $0x45000000, R2
+	BR      L4
+L13:
+	BGE     L18     //jnl .L18
+	BVS     L18
+	FMOVD   log10rodataL19<>+16(SB), F0
+	BR      L1
+L17:
+	SRAW    $1, R2, R2
+	SUBW    $0x40000000, R2
+	BR      L8
+L18:
+	FMOVD   log10rodataL19<>+8(SB), F0
+	WORD    $0xED009000     //ddb %f0,.L36-.L19(%r9)
+	BYTE    $0x00
+	BYTE    $0x1D
+	BR      L1