On Jun 19 2017, Jan Hubicka <hubi...@ucw.cz> wrote:
> this patch makes us to track quality of the profile. This is useful
> to disable some agressive optimizations when counts are known to be
> unreliable.
This breaks bootstrap on ia64 with a comparison failure in value-prof.o.
The only difference is in gimple_value_profile_transformations:
@@ -8962,14 +8962,14 @@ Disassembly of section .text:
ad06: 10 00 a0 01 42 80 mov r1=r104
ad0c: 0d e0 02 84 mov r108=r92;;
ad10: 09 00 cc 1c 90 11 [MMI] st4 [r14]=r51
- ad16: e0 00 20 30 20 60 ld8 r14=[r8]
+ ad16: 00 00 00 02 00 60 nop.m 0x0
ad1c: 0d 08 01 84 mov r107=r33;;
- ad20: 0b 70 d8 1c 0c 20 [MMI] and r14=r54,r14;;
- ad26: e0 38 39 1c 40 00 or r14=r39,r14
+ ad20: 0b 70 00 10 18 10 [MMI] ld8 r14=[r8];;
+ ad26: e0 b0 39 18 40 00 and r14=r54,r14
ad2c: 00 00 04 00 nop.i 0x0;;
- ad30: 01 00 00 00 01 00 [MII] nop.m 0x0
- ad36: e0 90 39 22 20 00 dep r14=r50,r14,62,2
- ad3c: 00 00 04 00 nop.i 0x0;;
+ ad30: 0b 70 9c 1c 0e 20 [MMI] or r14=r39,r14;;
+ ad36: 00 00 00 02 00 c0 nop.m 0x0
+ ad3c: 21 73 44 40 dep r14=r50,r14,62,2;;
ad40: 09 00 38 10 98 11 [MMI] st8 [r8]=r14
ad46: 00 98 41 20 23 00 st4 [r16]=r51
ad4c: 00 00 04 00 nop.i 0x0;;
Andreas.
--
Andreas Schwab, SUSE Labs, sch...@suse.de
GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7
"And now for something completely different."
