[Bug tree-optimization/67227] [6 regression] comparison failure in ada/par.o

[schwab@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67227

Andreas Schwab <schwab@linux-m68k.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[6 regression] stage2 ada   |[6 regression] comparison
                   |compiler miscompiled        |failure in ada/par.o

--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> ---
It is only a comparison failure due to scheduling differences.

--- x1  2015-08-19 15:26:41.000000000 +0200
+++ x2  2015-08-19 15:26:46.000000000 +0200
@@ -1,5 +1,5 @@

-stage2-gcc/ada/par.o:     file format elf64-ia64-little
+stage3-gcc/ada/par.o:     file format elf64-ia64-little


 Disassembly of section .text:
@@ -29467,25 +29467,25 @@
                        214b2: PCREL21B atree__new_node
    214b6:      00 00 00 02 00 00                   nop.i 0x0
    214bc:      08 00 00 50                         br.call.sptk.many b0=214b0
<par__ch6__p_formal_part.2186+0xa30>
-   214c0:      08 78 e0 01 80 24       [MMI]       mov r15=16504
-   214c6:      e0 80 03 00 49 20                   mov r14=16496
-   214cc:      00 06 04 92                         mov r1=16608
-   214d0:      0a 80 23 00 08 20       [MMI]       addp4 r112=r8,r0;;
-   214d6:      f0 78 30 00 40 c0                   add r15=r15,r12
-   214dc:      e1 60 00 80                         add r14=r14,r12
-   214e0:      0a 08 04 18 00 20       [MMI]       add r1=r1,r12;;
-   214e6:      f0 00 3c 20 20 00                   ld4 r15=[r15]
-   214ec:      00 00 04 00                         nop.i 0x0
+   214c0:      08 70 c0 01 80 24       [MMI]       mov r14=16496
+   214c6:      00 00 00 02 00 e0                   nop.m 0x0
+   214cc:      81 07 00 92                         mov r15=16504
+   214d0:      09 08 80 01 81 24       [MMI]       mov r1=16608
+   214d6:      00 00 00 02 00 00                   nop.m 0x0
+   214dc:      8e 00 20 80                         addp4 r112=r8,r0;;
+   214e0:      09 70 38 18 00 20       [MMI]       add r14=r14,r12
+   214e6:      f0 78 30 00 40 20                   add r15=r15,r12
+   214ec:      10 60 00 80                         add r1=r1,r12;;
    214f0:      09 00 20 1c 90 11       [MMI]       st4 [r14]=r8
    214f6:      10 00 04 30 20 00                   ld8 r1=[r1]
    214fc:      00 00 04 00                         nop.i 0x0;;
-   21500:      01 00 00 00 01 00       [MII]       nop.m 0x0
-   21506:      e0 00 3c 2c 00 e0                   sxt4 r14=r15
-   2150c:      01 61 00 84                         adds r15=16,r12;;
-   21510:      0b 70 38 00 11 20       [MMI]       shladd r14=r14,2,r0;;
-   21516:      e0 78 38 00 40 00                   add r14=r15,r14
+   21500:      02 78 00 1e 10 10       [MII]       ld4 r15=[r15]
+   21506:      00 00 00 02 00 c0                   nop.i 0x0;;
+   2150c:      01 78 58 00                         sxt4 r14=r15
+   21510:      0b 78 40 18 00 21       [MMI]       adds r15=16,r12;;
+   21516:      e0 70 00 22 40 00                   shladd r14=r14,2,r0
    2151c:      00 00 04 00                         nop.i 0x0;;
-   21520:      09 00 00 00 01 00       [MMI]       nop.m 0x0
+   21520:      0b 70 3c 1c 00 20       [MMI]       add r14=r15,r14;;
    21526:      e0 e0 3b 7e 46 00                   adds r14=-4,r14
    2152c:      00 00 04 00                         nop.i 0x0;;
    21530:      10 88 03 1c 10 10       [MIB]       ld4 r113=[r14]