From: "Richard W.M. Jones" <rich@annexia.org>
To: Goswin von Brederlow <goswin-v-b@web.de>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Zarith problems on ppc64le
Date: Tue, 8 Nov 2016 11:10:26 +0000 [thread overview]
Message-ID: <20161108111026.GV324@annexia.org> (raw)
In-Reply-To: <20161108100029.GB18517@frosties>
[-- Attachment #1: Type: text/plain, Size: 628 bytes --]
On Tue, Nov 08, 2016 at 11:00:29AM +0100, Goswin von Brederlow wrote:
> What I don't get is why this ihappens only on ppc64le. For it to
> consistently return 0 there has to be some check in there for negative
> values. But that check is only present in some specialized ppc64le
> code? Seems like something the generic code for all archs should
> already have.
>
> Just out of interest: So what's so special about ppc64le that checking
> for negatives is present just there?
Undefined behaviour means anything could happen. Attached are the
ppc64 & ppc64le disassemblies for this function if you want to have a
look.
Rich.
[-- Attachment #2: ppc64.S --]
[-- Type: text/plain, Size: 13495 bytes --]
0000000000001220 <.ml_z_of_float>:
1220: 7c 08 02 a6 mflr r0
1224: fb 61 ff d0 std r27,-48(r1)
1228: fb e1 ff f0 std r31,-16(r1)
122c: 7c 7b 1b 78 mr r27,r3
1230: db e1 ff f8 stfd f31,-8(r1)
1234: fb 41 ff c8 std r26,-56(r1)
1238: 3f e2 00 00 addis r31,r2,0
123c: eb ff 00 00 ld r31,0(r31)
1240: 3c a2 00 00 addis r5,r2,0
1244: 38 80 00 01 li r4,1
1248: fb 81 ff d8 std r28,-40(r1)
124c: fb a1 ff e0 std r29,-32(r1)
1250: 38 a5 00 00 addi r5,r5,0
1254: fb c1 ff e8 std r30,-24(r1)
1258: f8 01 00 10 std r0,16(r1)
125c: f8 21 ff 41 stdu r1,-192(r1)
1260: cb e3 00 00 lfd f31,0(r3)
1264: e8 7f 00 00 ld r3,0(r31)
1268: fc 20 f8 90 fmr f1,f31
126c: db e1 00 78 stfd f31,120(r1)
1270: 60 42 00 00 ori r2,r2,0
1274: e8 c1 00 78 ld r6,120(r1)
1278: 48 00 00 01 bl 1278 <.ml_z_of_float+0x58>
127c: 60 00 00 00 nop
1280: e8 df 00 00 ld r6,0(r31)
1284: 3c 62 00 00 addis r3,r2,0
1288: 38 a0 00 03 li r5,3
128c: 38 80 00 01 li r4,1
1290: 38 63 00 00 addi r3,r3,0
1294: 48 00 00 01 bl 1294 <.ml_z_of_float+0x74>
1298: 60 00 00 00 nop
129c: 3c e0 3f ff lis r7,16383
12a0: 3c c0 c0 00 lis r6,-16384
12a4: e8 7f 00 00 ld r3,0(r31)
12a8: 60 e7 ff ff ori r7,r7,65535
12ac: 78 c6 07 c6 rldicr r6,r6,32,31
12b0: 78 e7 07 c6 rldicr r7,r7,32,31
12b4: 3c a2 00 00 addis r5,r2,0
12b8: 64 e7 ff ff oris r7,r7,65535
12bc: 60 c6 10 00 ori r6,r6,4096
12c0: 60 e7 f0 00 ori r7,r7,61440
12c4: 38 a5 00 00 addi r5,r5,0
12c8: 38 80 00 01 li r4,1
12cc: 48 00 00 01 bl 12cc <.ml_z_of_float+0xac>
12d0: 60 00 00 00 nop
12d4: 3d 22 00 00 addis r9,r2,0
12d8: c8 09 00 00 lfd f0,0(r9)
12dc: ff 9f 00 00 fcmpu cr7,f31,f0
12e0: 4f dd f3 82 cror 4*cr7+eq,4*cr7+gt,4*cr7+eq
12e4: 41 9e 02 5c beq cr7,1540 <.ml_z_of_float+0x320>
12e8: fc 00 fe 5e fctidz f0,f31
12ec: d8 01 00 70 stfd f0,112(r1)
12f0: 60 42 00 00 ori r2,r2,0
12f4: eb c1 00 70 ld r30,112(r1)
12f8: 7b dc 0f a4 rldicr r28,r30,1,62
12fc: e8 7f 00 00 ld r3,0(r31)
1300: 3c a2 00 00 addis r5,r2,0
1304: 3b bc 00 01 addi r29,r28,1
1308: 38 a5 00 00 addi r5,r5,0
130c: 38 80 00 01 li r4,1
1310: 7f a6 eb 78 mr r6,r29
1314: 48 00 00 01 bl 1314 <.ml_z_of_float+0xf4>
1318: 60 00 00 00 nop
131c: e8 7f 00 00 ld r3,0(r31)
1320: 3c a2 00 00 addis r5,r2,0
1324: 7f c6 f3 78 mr r6,r30
1328: 38 a5 00 00 addi r5,r5,0
132c: 38 80 00 01 li r4,1
1330: 48 00 00 01 bl 1330 <.ml_z_of_float+0x110>
1334: 60 00 00 00 nop
1338: e8 7f 00 00 ld r3,0(r31)
133c: 3c a2 00 00 addis r5,r2,0
1340: 38 80 00 01 li r4,1
1344: 38 a5 00 00 addi r5,r5,0
1348: 38 c0 00 00 li r6,0
134c: 48 00 00 01 bl 134c <.ml_z_of_float+0x12c>
1350: 60 00 00 00 nop
1354: e8 7f 00 00 ld r3,0(r31)
1358: 3c a2 00 00 addis r5,r2,0
135c: 38 80 00 01 li r4,1
1360: 38 a5 00 00 addi r5,r5,0
1364: 7f c6 f3 78 mr r6,r30
1368: 48 00 00 01 bl 1368 <.ml_z_of_float+0x148>
136c: 60 00 00 00 nop
1370: 3d 22 00 00 addis r9,r2,0
1374: 3c a2 00 00 addis r5,r2,0
1378: e8 7f 00 00 ld r3,0(r31)
137c: 38 a5 00 00 addi r5,r5,0
1380: 38 80 00 01 li r4,1
1384: c8 09 00 00 lfd f0,0(r9)
1388: ff 9f 00 00 fcmpu cr7,f31,f0
138c: 41 9e 01 14 beq cr7,14a0 <.ml_z_of_float+0x280>
1390: 3c c2 00 00 addis r6,r2,0
1394: 38 c6 00 00 addi r6,r6,0
1398: 48 00 00 01 bl 1398 <.ml_z_of_float+0x178>
139c: 60 00 00 00 nop
13a0: e8 7f 00 00 ld r3,0(r31)
13a4: 3c a2 00 00 addis r5,r2,0
13a8: 7f 86 e3 78 mr r6,r28
13ac: 38 a5 00 00 addi r5,r5,0
13b0: 38 80 00 01 li r4,1
13b4: 48 00 00 01 bl 13b4 <.ml_z_of_float+0x194>
13b8: 60 00 00 00 nop
13bc: e8 7f 00 00 ld r3,0(r31)
13c0: 3c a2 00 00 addis r5,r2,0
13c4: 7f 86 e3 78 mr r6,r28
13c8: 38 a5 00 00 addi r5,r5,0
13cc: 38 80 00 01 li r4,1
13d0: 48 00 00 01 bl 13d0 <.ml_z_of_float+0x1b0>
13d4: 60 00 00 00 nop
13d8: e8 7f 00 00 ld r3,0(r31)
13dc: 3c a2 00 00 addis r5,r2,0
13e0: 7f a6 eb 78 mr r6,r29
13e4: 38 a5 00 00 addi r5,r5,0
13e8: 38 80 00 01 li r4,1
13ec: 48 00 00 01 bl 13ec <.ml_z_of_float+0x1cc>
13f0: 60 00 00 00 nop
13f4: 3d 22 00 00 addis r9,r2,0
13f8: c8 09 00 00 lfd f0,0(r9)
13fc: ff 9f 00 00 fcmpu cr7,f31,f0
1400: 4f dd f3 82 cror 4*cr7+eq,4*cr7+gt,4*cr7+eq
1404: 41 9e 02 c8 beq cr7,16cc <.ml_z_of_float+0x4ac>
1408: e9 3b 00 00 ld r9,0(r27)
140c: 79 28 65 60 rldicl r8,r9,12,53
1410: 39 48 fc 01 addi r10,r8,-1023
1414: 2f 8a 00 00 cmpwi cr7,r10,0
1418: 41 9c 02 4c blt cr7,1664 <.ml_z_of_float+0x444>
141c: 2f 8a 04 00 cmpwi cr7,r10,1024
1420: 41 de 03 00 beq- cr7,1720 <.ml_z_of_float+0x500>
1424: 2f 8a 00 34 cmpwi cr7,r10,52
1428: 3f c0 00 10 lis r30,16
142c: 79 29 03 00 clrldi r9,r9,12
1430: 7b de 07 c6 rldicr r30,r30,32,31
1434: 7d 3e f3 78 or r30,r9,r30
1438: 41 9d 01 38 bgt cr7,1570 <.ml_z_of_float+0x350>
143c: 3d 22 00 00 addis r9,r2,0
1440: 21 4a 00 34 subfic r10,r10,52
1444: 7f de 56 34 srad r30,r30,r10
1448: c8 09 00 00 lfd f0,0(r9)
144c: 7b dd 0f a4 rldicr r29,r30,1,62
1450: 3b bd 00 01 addi r29,r29,1
1454: ff 9f 00 00 fcmpu cr7,f31,f0
1458: 4f dd f3 82 cror 4*cr7+eq,4*cr7+gt,4*cr7+eq
145c: 41 9e 00 a8 beq cr7,1504 <.ml_z_of_float+0x2e4>
1460: 38 21 00 c0 addi r1,r1,192
1464: 7b de 0f a4 rldicr r30,r30,1,62
1468: 23 be 00 01 subfic r29,r30,1
146c: e8 01 00 10 ld r0,16(r1)
1470: cb e1 ff f8 lfd f31,-8(r1)
1474: 7f a3 eb 78 mr r3,r29
1478: eb 41 ff c8 ld r26,-56(r1)
147c: eb 61 ff d0 ld r27,-48(r1)
1480: eb 81 ff d8 ld r28,-40(r1)
1484: eb a1 ff e0 ld r29,-32(r1)
1488: eb c1 ff e8 ld r30,-24(r1)
148c: eb e1 ff f0 ld r31,-16(r1)
1490: 7c 08 03 a6 mtlr r0
1494: 4e 80 00 20 blr
1498: 60 00 00 00 nop
149c: 60 00 00 00 nop
14a0: 3c c2 00 00 addis r6,r2,0
14a4: 38 c6 00 00 addi r6,r6,0
14a8: 48 00 00 01 bl 14a8 <.ml_z_of_float+0x288>
14ac: 60 00 00 00 nop
14b0: e8 7f 00 00 ld r3,0(r31)
14b4: 3c a2 00 00 addis r5,r2,0
14b8: 7f 86 e3 78 mr r6,r28
14bc: 38 a5 00 00 addi r5,r5,0
14c0: 38 80 00 01 li r4,1
14c4: 48 00 00 01 bl 14c4 <.ml_z_of_float+0x2a4>
14c8: 60 00 00 00 nop
14cc: e8 7f 00 00 ld r3,0(r31)
14d0: 3c a2 00 00 addis r5,r2,0
14d4: 7f 86 e3 78 mr r6,r28
14d8: 38 a5 00 00 addi r5,r5,0
14dc: 38 80 00 01 li r4,1
14e0: 48 00 00 01 bl 14e0 <.ml_z_of_float+0x2c0>
14e4: 60 00 00 00 nop
14e8: e8 7f 00 00 ld r3,0(r31)
14ec: 3c a2 00 00 addis r5,r2,0
14f0: 7f a6 eb 78 mr r6,r29
14f4: 38 a5 00 00 addi r5,r5,0
14f8: 38 80 00 01 li r4,1
14fc: 48 00 00 01 bl 14fc <.ml_z_of_float+0x2dc>
1500: 60 00 00 00 nop
1504: 38 21 00 c0 addi r1,r1,192
1508: 7f a3 eb 78 mr r3,r29
150c: e8 01 00 10 ld r0,16(r1)
1510: cb e1 ff f8 lfd f31,-8(r1)
1514: eb 41 ff c8 ld r26,-56(r1)
1518: eb 61 ff d0 ld r27,-48(r1)
151c: eb 81 ff d8 ld r28,-40(r1)
1520: eb a1 ff e0 ld r29,-32(r1)
1524: eb c1 ff e8 ld r30,-24(r1)
1528: eb e1 ff f0 ld r31,-16(r1)
152c: 7c 08 03 a6 mtlr r0
1530: 4e 80 00 20 blr
1534: 60 00 00 00 nop
1538: 60 00 00 00 nop
153c: 60 00 00 00 nop
1540: fc 1f 00 28 fsub f0,f31,f0
1544: 39 20 ff ff li r9,-1
1548: 79 29 00 04 rldicr r9,r9,0,0
154c: fc 00 06 5e fctidz f0,f0
1550: d8 01 00 70 stfd f0,112(r1)
1554: 60 42 00 00 ori r2,r2,0
1558: eb c1 00 70 ld r30,112(r1)
155c: 7f de 4a 78 xor r30,r30,r9
1560: 4b ff fd 98 b 12f8 <.ml_z_of_float+0xd8>
1564: 60 00 00 00 nop
1568: 60 00 00 00 nop
156c: 60 00 00 00 nop
1570: 39 08 fb cd addi r8,r8,-1075
1574: 3c 62 00 00 addis r3,r2,0
1578: e8 63 00 00 ld r3,0(r3)
157c: 38 c0 00 01 li r6,1
1580: 7d 1f 07 b4 extsw r31,r8
1584: 38 a0 00 00 li r5,0
1588: 7f ff 36 74 sradi r31,r31,6
158c: 79 1d 06 a0 clrldi r29,r8,58
1590: 38 9f 00 03 addi r4,r31,3
1594: 7b fb 1f 24 rldicr r27,r31,3,60
1598: 7c 84 07 b4 extsw r4,r4
159c: 7f ba 07 b4 extsw r26,r29
15a0: 78 84 1f 24 rldicr r4,r4,3,60
15a4: 48 00 00 01 bl 15a4 <.ml_z_of_float+0x384>
15a8: 60 00 00 00 nop
15ac: 2f 9f 00 00 cmpwi cr7,r31,0
15b0: 7c 7c 1b 78 mr r28,r3
15b4: 40 9d 00 18 ble cr7,15cc <.ml_z_of_float+0x3ac>
15b8: 7f 65 db 78 mr r5,r27
15bc: 38 80 00 00 li r4,0
15c0: 38 63 00 10 addi r3,r3,16
15c4: 48 00 00 01 bl 15c4 <.ml_z_of_float+0x3a4>
15c8: 60 00 00 00 nop
15cc: 2f ba 00 00 cmpdi cr7,r26,0
15d0: 7c bb e2 14 add r5,r27,r28
15d4: 7f c9 e8 36 sld r9,r30,r29
15d8: 39 40 00 00 li r10,0
15dc: f9 25 00 10 std r9,16(r5)
15e0: 41 9e 00 0c beq cr7,15ec <.ml_z_of_float+0x3cc>
15e4: 23 bd 00 40 subfic r29,r29,64
15e8: 7f ca ee 34 srad r10,r30,r29
15ec: 3d 22 00 00 addis r9,r2,0
15f0: f9 45 00 18 std r10,24(r5)
15f4: 38 e0 00 00 li r7,0
15f8: c8 09 00 00 lfd f0,0(r9)
15fc: 39 3f 00 02 addi r9,r31,2
1600: 7d 29 07 b4 extsw r9,r9
1604: 7d 28 4b 78 mr r8,r9
1608: ff 9f 00 00 fcmpu cr7,f31,f0
160c: 4f dd f3 82 cror 4*cr7+eq,4*cr7+gt,4*cr7+eq
1610: 40 9e 00 b0 bne cr7,16c0 <.ml_z_of_float+0x4a0>
1614: 2f a9 00 00 cmpdi cr7,r9,0
1618: 40 9d 00 d8 ble cr7,16f0 <.ml_z_of_float+0x4d0>
161c: 79 2a 1f 24 rldicr r10,r9,3,60
1620: 7d 4a e2 14 add r10,r10,r28
1624: e9 4a 00 08 ld r10,8(r10)
1628: 2f aa 00 00 cmpdi cr7,r10,0
162c: 40 9e 00 74 bne cr7,16a0 <.ml_z_of_float+0x480>
1630: 7d 29 03 a6 mtctr r9
1634: 79 2a 1f 24 rldicr r10,r9,3,60
1638: 39 4a 00 08 addi r10,r10,8
163c: 7d 4a e2 14 add r10,r10,r28
1640: 48 00 00 1c b 165c <.ml_z_of_float+0x43c>
1644: 60 00 00 00 nop
1648: 60 00 00 00 nop
164c: 60 00 00 00 nop
1650: e9 2a ff f9 ldu r9,-8(r10)
1654: 2f a9 00 00 cmpdi cr7,r9,0
1658: 40 9e 00 48 bne cr7,16a0 <.ml_z_of_float+0x480>
165c: 39 08 ff ff addi r8,r8,-1
1660: 42 00 ff f0 bdnz 1650 <.ml_z_of_float+0x430>
1664: 38 21 00 c0 addi r1,r1,192
1668: 3b a0 00 01 li r29,1
166c: 7f a3 eb 78 mr r3,r29
1670: e8 01 00 10 ld r0,16(r1)
1674: cb e1 ff f8 lfd f31,-8(r1)
1678: eb 41 ff c8 ld r26,-56(r1)
167c: eb 61 ff d0 ld r27,-48(r1)
1680: eb 81 ff d8 ld r28,-40(r1)
1684: eb a1 ff e0 ld r29,-32(r1)
1688: eb c1 ff e8 ld r30,-24(r1)
168c: eb e1 ff f0 ld r31,-16(r1)
1690: 7c 08 03 a6 mtlr r0
1694: 4e 80 00 20 blr
1698: 60 00 00 00 nop
169c: 60 00 00 00 nop
16a0: 2f a8 00 01 cmpdi cr7,r8,1
16a4: 41 9e 00 50 beq cr7,16f4 <.ml_z_of_float+0x4d4>
16a8: 7c e8 43 78 or r8,r7,r8
16ac: 7f 9d e3 78 mr r29,r28
16b0: f9 1c 00 08 std r8,8(r28)
16b4: 4b ff fe 50 b 1504 <.ml_z_of_float+0x2e4>
16b8: 60 00 00 00 nop
16bc: 60 00 00 00 nop
16c0: 38 e0 ff ff li r7,-1
16c4: 78 e7 00 04 rldicr r7,r7,0,0
16c8: 4b ff ff 4c b 1614 <.ml_z_of_float+0x3f4>
16cc: 3d 22 00 00 addis r9,r2,0
16d0: c8 09 00 00 lfd f0,0(r9)
16d4: ff 9f 00 00 fcmpu cr7,f31,f0
16d8: 4f dc f3 82 cror 4*cr7+eq,4*cr7+lt,4*cr7+eq
16dc: 40 fe fd 2c bne+ cr7,1408 <.ml_z_of_float+0x1e8>
16e0: 4b ff fe 24 b 1504 <.ml_z_of_float+0x2e4>
16e4: 60 00 00 00 nop
16e8: 60 00 00 00 nop
16ec: 60 00 00 00 nop
16f0: 41 de ff 74 beq- cr7,1664 <.ml_z_of_float+0x444>
16f4: e9 3c 00 10 ld r9,16(r28)
16f8: 39 40 ff ff li r10,-1
16fc: 79 4a 00 80 clrldi r10,r10,2
1700: 7f a9 50 40 cmpld cr7,r9,r10
1704: 41 9d ff a4 bgt cr7,16a8 <.ml_z_of_float+0x488>
1708: 2f a7 00 00 cmpdi cr7,r7,0
170c: 79 29 0f a4 rldicr r9,r9,1,62
1710: 23 a9 00 01 subfic r29,r9,1
1714: 40 9e fd f0 bne cr7,1504 <.ml_z_of_float+0x2e4>
1718: 3b a9 00 01 addi r29,r9,1
171c: 4b ff fd e8 b 1504 <.ml_z_of_float+0x2e4>
1720: 48 00 00 01 bl 1720 <.ml_z_of_float+0x500>
1724: 00 00 00 00 .long 0x0
1728: 00 00 02 01 .long 0x201
172c: 81 06 00 00 lwz r8,0(r6)
[-- Attachment #3: ppc64le.S --]
[-- Type: text/plain, Size: 8093 bytes --]
00000000000015a0 <ml_z_of_float>:
15a0: 00 00 4c 3c addis r2,r12,0
15a4: 00 00 42 38 addi r2,r2,0
15a8: a6 02 08 7c mflr r0
15ac: f8 ff e1 db stfd f31,-8(r1)
15b0: c8 ff 41 fb std r26,-56(r1)
15b4: 00 00 22 3d addis r9,r2,0
15b8: d0 ff 61 fb std r27,-48(r1)
15bc: d8 ff 81 fb std r28,-40(r1)
15c0: e0 ff a1 fb std r29,-32(r1)
15c4: e8 ff c1 fb std r30,-24(r1)
15c8: f0 ff e1 fb std r31,-16(r1)
15cc: 00 00 09 c8 lfd f0,0(r9)
15d0: 10 00 01 f8 std r0,16(r1)
15d4: 61 ff 21 f8 stdu r1,-160(r1)
15d8: 00 00 e3 cb lfd f31,0(r3)
15dc: 00 00 9f ff fcmpu cr7,f31,f0
15e0: 82 f3 dd 4f cror 4*cr7+eq,4*cr7+gt,4*cr7+eq
15e4: 18 00 9e 40 bne cr7,15fc <ml_z_of_float+0x5c>
15e8: 00 00 22 3d addis r9,r2,0
15ec: 00 00 09 c8 lfd f0,0(r9)
15f0: 00 00 9f ff fcmpu cr7,f31,f0
15f4: 82 f3 dc 4f cror 4*cr7+eq,4*cr7+lt,4*cr7+eq
15f8: a8 01 9e 41 beq cr7,17a0 <ml_z_of_float+0x200>
15fc: 66 00 e9 7f mfvsrd r9,vs31
1600: 60 65 28 79 rldicl r8,r9,12,53
1604: 01 fc 48 39 addi r10,r8,-1023
1608: 00 00 8a 2f cmpwi cr7,r10,0
160c: 58 01 9c 41 blt cr7,1764 <ml_z_of_float+0x1c4>
1610: 00 04 8a 2f cmpwi cr7,r10,1024
1614: 6c 02 de 41 beq- cr7,1880 <ml_z_of_float+0x2e0>
1618: 34 00 8a 2f cmpwi cr7,r10,52
161c: 10 00 c0 3f lis r30,16
1620: 00 03 29 79 clrldi r9,r9,12
1624: c6 07 de 7b rldicr r30,r30,32,31
1628: 78 f3 3e 7d or r30,r9,r30
162c: 54 00 9d 41 bgt cr7,1680 <ml_z_of_float+0xe0>
1630: d0 04 00 f0 xxlxor vs0,vs0,vs0
1634: 34 00 4a 21 subfic r10,r10,52
1638: 34 56 de 7f srad r30,r30,r10
163c: 00 00 9f ff fcmpu cr7,f31,f0
1640: a4 0f c3 7b rldicr r3,r30,1,62
1644: 01 00 63 38 addi r3,r3,1
1648: 82 f3 dd 4f cror 4*cr7+eq,4*cr7+gt,4*cr7+eq
164c: 94 01 9e 40 bne cr7,17e0 <ml_z_of_float+0x240>
1650: a0 00 21 38 addi r1,r1,160
1654: 10 00 01 e8 ld r0,16(r1)
1658: f8 ff e1 cb lfd f31,-8(r1)
165c: c8 ff 41 eb ld r26,-56(r1)
1660: d0 ff 61 eb ld r27,-48(r1)
1664: d8 ff 81 eb ld r28,-40(r1)
1668: e0 ff a1 eb ld r29,-32(r1)
166c: e8 ff c1 eb ld r30,-24(r1)
1670: f0 ff e1 eb ld r31,-16(r1)
1674: a6 03 08 7c mtlr r0
1678: 20 00 80 4e blr
167c: 00 00 42 60 ori r2,r2,0
1680: cd fb 08 39 addi r8,r8,-1075
1684: 00 00 62 3c addis r3,r2,0
1688: 00 00 63 e8 ld r3,0(r3)
168c: 01 00 c0 38 li r6,1
1690: b4 07 1f 7d extsw r31,r8
1694: 00 00 a0 38 li r5,0
1698: 74 36 ff 7f sradi r31,r31,6
169c: a0 06 1d 79 clrldi r29,r8,58
16a0: 03 00 9f 38 addi r4,r31,3
16a4: 24 1f fb 7b rldicr r27,r31,3,60
16a8: b4 07 84 7c extsw r4,r4
16ac: b4 07 ba 7f extsw r26,r29
16b0: 24 1f 84 78 rldicr r4,r4,3,60
16b4: 01 00 00 48 bl 16b4 <ml_z_of_float+0x114>
16b8: 00 00 00 60 nop
16bc: 00 00 9f 2f cmpwi cr7,r31,0
16c0: 78 1b 7c 7c mr r28,r3
16c4: 18 00 9d 40 ble cr7,16dc <ml_z_of_float+0x13c>
16c8: 78 db 65 7f mr r5,r27
16cc: 00 00 80 38 li r4,0
16d0: 10 00 63 38 addi r3,r3,16
16d4: 01 00 00 48 bl 16d4 <ml_z_of_float+0x134>
16d8: 00 00 00 60 nop
16dc: 00 00 ba 2f cmpdi cr7,r26,0
16e0: 14 e2 bb 7c add r5,r27,r28
16e4: 36 e8 c9 7f sld r9,r30,r29
16e8: 00 00 40 39 li r10,0
16ec: 10 00 25 f9 std r9,16(r5)
16f0: 0c 00 9e 41 beq cr7,16fc <ml_z_of_float+0x15c>
16f4: 40 00 bd 23 subfic r29,r29,64
16f8: 34 ee ca 7f srad r10,r30,r29
16fc: d0 04 00 f0 xxlxor vs0,vs0,vs0
1700: 02 00 3f 39 addi r9,r31,2
1704: 18 00 45 f9 std r10,24(r5)
1708: 00 00 e0 38 li r7,0
170c: b4 07 29 7d extsw r9,r9
1710: 00 00 9f ff fcmpu cr7,f31,f0
1714: 78 4b 28 7d mr r8,r9
1718: 82 f3 dd 4f cror 4*cr7+eq,4*cr7+gt,4*cr7+eq
171c: 24 01 9e 40 bne cr7,1840 <ml_z_of_float+0x2a0>
1720: 00 00 a9 2f cmpdi cr7,r9,0
1724: 28 01 9d 40 ble cr7,184c <ml_z_of_float+0x2ac>
1728: 24 1f 2a 79 rldicr r10,r9,3,60
172c: 14 e2 4a 7d add r10,r10,r28
1730: 08 00 4a e9 ld r10,8(r10)
1734: 00 00 aa 2f cmpdi cr7,r10,0
1738: e8 00 9e 40 bne cr7,1820 <ml_z_of_float+0x280>
173c: a6 03 29 7d mtctr r9
1740: 24 1f 2a 79 rldicr r10,r9,3,60
1744: 08 00 4a 39 addi r10,r10,8
1748: 14 e2 4a 7d add r10,r10,r28
174c: 10 00 00 48 b 175c <ml_z_of_float+0x1bc>
1750: f9 ff 2a e9 ldu r9,-8(r10)
1754: 00 00 a9 2f cmpdi cr7,r9,0
1758: c8 00 9e 40 bne cr7,1820 <ml_z_of_float+0x280>
175c: ff ff 08 39 addi r8,r8,-1
1760: f0 ff 00 42 bdnz 1750 <ml_z_of_float+0x1b0>
1764: a0 00 21 38 addi r1,r1,160
1768: 01 00 60 38 li r3,1
176c: 10 00 01 e8 ld r0,16(r1)
1770: f8 ff e1 cb lfd f31,-8(r1)
1774: c8 ff 41 eb ld r26,-56(r1)
1778: d0 ff 61 eb ld r27,-48(r1)
177c: d8 ff 81 eb ld r28,-40(r1)
1780: e0 ff a1 eb ld r29,-32(r1)
1784: e8 ff c1 eb ld r30,-24(r1)
1788: f0 ff e1 eb ld r31,-16(r1)
178c: a6 03 08 7c mtlr r0
1790: 20 00 80 4e blr
1794: 00 00 00 60 nop
1798: 00 00 00 60 nop
179c: 00 00 42 60 ori r2,r2,0
17a0: 5e fe e0 ff fctidz f31,f31
17a4: a0 00 21 38 addi r1,r1,160
17a8: 10 00 01 e8 ld r0,16(r1)
17ac: c8 ff 41 eb ld r26,-56(r1)
17b0: d0 ff 61 eb ld r27,-48(r1)
17b4: d8 ff 81 eb ld r28,-40(r1)
17b8: e0 ff a1 eb ld r29,-32(r1)
17bc: e8 ff c1 eb ld r30,-24(r1)
17c0: f0 ff e1 eb ld r31,-16(r1)
17c4: a6 03 08 7c mtlr r0
17c8: 66 00 e3 7f mfvsrd r3,vs31
17cc: f8 ff e1 cb lfd f31,-8(r1)
17d0: a4 0f 63 78 rldicr r3,r3,1,62
17d4: 01 00 63 38 addi r3,r3,1
17d8: 20 00 80 4e blr
17dc: 00 00 42 60 ori r2,r2,0
17e0: a0 00 21 38 addi r1,r1,160
17e4: a4 0f de 7b rldicr r30,r30,1,62
17e8: 01 00 7e 20 subfic r3,r30,1
17ec: 10 00 01 e8 ld r0,16(r1)
17f0: f8 ff e1 cb lfd f31,-8(r1)
17f4: c8 ff 41 eb ld r26,-56(r1)
17f8: d0 ff 61 eb ld r27,-48(r1)
17fc: d8 ff 81 eb ld r28,-40(r1)
1800: e0 ff a1 eb ld r29,-32(r1)
1804: e8 ff c1 eb ld r30,-24(r1)
1808: f0 ff e1 eb ld r31,-16(r1)
180c: a6 03 08 7c mtlr r0
1810: 20 00 80 4e blr
1814: 00 00 00 60 nop
1818: 00 00 00 60 nop
181c: 00 00 42 60 ori r2,r2,0
1820: 01 00 a8 2f cmpdi cr7,r8,1
1824: 2c 00 9e 41 beq cr7,1850 <ml_z_of_float+0x2b0>
1828: 78 43 e8 7c or r8,r7,r8
182c: 78 e3 83 7f mr r3,r28
1830: 08 00 1c f9 std r8,8(r28)
1834: 1c fe ff 4b b 1650 <ml_z_of_float+0xb0>
1838: 00 00 00 60 nop
183c: 00 00 42 60 ori r2,r2,0
1840: ff ff e0 38 li r7,-1
1844: 04 00 e7 78 rldicr r7,r7,0,0
1848: d8 fe ff 4b b 1720 <ml_z_of_float+0x180>
184c: 18 ff de 41 beq- cr7,1764 <ml_z_of_float+0x1c4>
1850: 10 00 3c e9 ld r9,16(r28)
1854: ff ff 40 39 li r10,-1
1858: 80 00 4a 79 clrldi r10,r10,2
185c: 40 50 a9 7f cmpld cr7,r9,r10
1860: c8 ff 9d 41 bgt cr7,1828 <ml_z_of_float+0x288>
1864: 00 00 a7 2f cmpdi cr7,r7,0
1868: a4 0f 23 79 rldicr r3,r9,1,62
186c: 0c 00 9e 41 beq cr7,1878 <ml_z_of_float+0x2d8>
1870: 01 00 63 20 subfic r3,r3,1
1874: dc fd ff 4b b 1650 <ml_z_of_float+0xb0>
1878: 01 00 63 38 addi r3,r3,1
187c: d4 fd ff 4b b 1650 <ml_z_of_float+0xb0>
1880: 01 00 00 48 bl 1880 <ml_z_of_float+0x2e0>
1884: 00 00 00 00 .long 0x0
1888: 00 00 02 01 .long 0x1020000
188c: 81 06 00 00 .long 0x681
prev parent reply other threads:[~2016-11-08 11:10 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-07 13:22 Richard W.M. Jones
2016-11-07 13:31 ` Nicolas Ojeda Bar
2016-11-07 13:55 ` Francois BERENGER
2016-11-07 14:11 ` Sylvain Le Gall
2016-11-07 14:59 ` Simon Cruanes
2016-11-15 9:11 ` Bernhard Schommer
2016-11-07 15:48 ` Richard W.M. Jones
2016-11-07 15:58 ` Xavier Leroy
2016-11-07 16:19 ` Richard W.M. Jones
2016-11-08 10:00 ` Goswin von Brederlow
2016-11-08 11:10 ` Richard W.M. Jones [this message]
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