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[Bug middle-end/66148] [6 regression] build/genpreds: Internal error: abort in choose_enum_order, at genpreds.c:1006


https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66148

--- Comment #5 from dave.anglin at bell dot net ---
On 2015-05-25, at 3:21 AM, thopre01 at gcc dot gnu.org wrote:

> Here the REG_EQUAL does not match the value that is set: the 32 most
> significant bits are zero. Which is why combine decide that the set of
> zero_extract can be removed. Looking at the dumps of the various pass,
> everything looks fine until cse1 where instruction 360 is replaced from:
> 
> (insn 360 359 361 32 (set (reg:DI 549)
>        (lo_sum:DI (reg:DI 550)
>            (const_int -822083584 [0xffffffffcf000000])))
> ../../gcc/gcc/genpreds.c:983 93 {*pa.md:2773}
>     (expr_list:REG_EQUAL (const_int 3472883712 [0xcf000000])
>        (nil)))

The note appears wrong before cse1.

Dave
--
John David Anglin       dave.anglin@bell.net


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