[Bug target/65369] [5 Regression] nettle test failure on powerpc64le-linux-gnu when built with -O3

[thopre01 at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65369

--- Comment #12 from Thomas Preud'homme <thopre01 at gcc dot gnu.org> ---
(In reply to Markus Trippelsdorf from comment #11)
>    0x0000000010000a00 <+1024>:  bl      0x100005b0 <_init+112>
>    0x0000000010000a04 <+1028>:  ld      r2,24(r1)
>    0x0000000010000a08 <+1032>:  lwz     r9,224(r1)
>    0x0000000010000a0c <+1036>:  addi    r3,r1,200
>    0x0000000010000a10 <+1040>:  addi    r4,r1,380
>    0x0000000010000a14 <+1044>:  stw     r9,380(r1)
>    0x0000000010000a18 <+1048>:  lwz     r9,228(r1)
>    0x0000000010000a1c <+1052>:  stw     r9,384(r1)
>    0x0000000010000a20 <+1056>:  lwz     r9,232(r1)
>    0x0000000010000a24 <+1060>:  stw     r9,388(r1)
>    0x0000000010000a28 <+1064>:  lwz     r9,236(r1)
>    0x0000000010000a2c <+1068>:  stw     r9,392(r1)
>    0x0000000010000a30 <+1072>:  lwz     r9,240(r1)
>    0x0000000010000a34 <+1076>:  stw     r9,396(r1)
>    0x0000000010000a38 <+1080>:  lwz     r9,244(r1)
>    0x0000000010000a3c <+1084>:  stw     r9,400(r1)
>    0x0000000010000a40 <+1088>:  lwz     r9,248(r1)
>    0x0000000010000a44 <+1092>:  stw     r9,404(r1)
>    0x0000000010000a48 <+1096>:  lwz     r9,252(r1)
>    0x0000000010000a4c <+1100>:  stw     r9,408(r1)
>    0x0000000010000a50 <+1104>:  lwz     r9,256(r1)
>    0x0000000010000a54 <+1108>:  stw     r9,412(r1)
>    0x0000000010000a58 <+1112>:  lwz     r9,260(r1)
>    0x0000000010000a5c <+1116>:  stw     r9,416(r1)
>    0x0000000010000a60 <+1120>:  lwz     r9,264(r1)
>    0x0000000010000a64 <+1124>:  stw     r9,420(r1)
>    0x0000000010000a68 <+1128>:  lwz     r9,268(r1)
>    0x0000000010000a6c <+1132>:  stw     r9,424(r1)
>    0x0000000010000a70 <+1136>:  lwz     r9,272(r1)
>    0x0000000010000a74 <+1140>:  stw     r9,428(r1)
>    0x0000000010000a78 <+1144>:  lwz     r9,276(r1)
>    0x0000000010000a7c <+1148>:  stw     r9,432(r1)
>    0x0000000010000a80 <+1152>:  lwz     r9,280(r1)
>    0x0000000010000a84 <+1156>:  stw     r9,436(r1)
>    0x0000000010000a88 <+1160>:  lwz     r9,284(r1)
>    0x0000000010000a8c <+1164>:  stw     r9,440(r1)
>    0x0000000010000a90 <+1168>:  bl      0x10000cb0 <md4_transform>
>    0x0000000010000a94 <+1172>:  li      r3,0
>    0x0000000010000a98 <+1176>:  b       0x10000784 <main+388>
>    0x0000000010000a9c <+1180>:  bl      0x100005e0 <_init+160>
>    0x0000000010000aa0 <+1184>:  ld      r2,24(r1)
> ---Type <return> to continue, or q <return> to quit---
>    0x0000000010000aa4 <+1188>:  cmpdi   cr7,r3,0
>    0x0000000010000aa8 <+1192>:  beq     cr7,0x10000988 <main+904>
>    0x0000000010000aac <+1196>:  li      r3,1
>    0x0000000010000ab0 <+1200>:  b       0x10000998 <main+920>
>    0x0000000010000ab4 <+1204>:  bl      0x100005f0 <_init+176>
> => 0x0000000010000ab8 <+1208>:  ld      r2,24(r1)
>    0x0000000010000abc <+1212>:  .long 0x0
>    0x0000000010000ac0 <+1216>:  .long 0x1000000
>    0x0000000010000ac4 <+1220>:  .long 0x1280

Alright, so the last 8 bytes of buffer and digest differ. I'll unwind this
tomorrow. Thanks!