[Bug target/23376] ICE on GCC 4.x with -O1 -funroll-loops -fvariable-expansion-in-unroller
steven at gcc dot gnu dot org
gcc-bugzilla@gcc.gnu.org
Sun Aug 14 12:22:00 GMT 2005
------- Additional Comments From steven at gcc dot gnu dot org 2005-08-14 12:22 -------
>From config/i386/mmx.md:
;; Note! Except for the basic move instructions, *all* of these
;; patterns are outside the normal optabs namespace. This is because
;; use of these registers requires the insertion of emms or femms
;; instructions to return to normal fpu mode. The compiler doesn't
;; know how to do that itself, which means it's up to the user. Which
;; means that we should never use any of these patterns except at the
;; direction of the user via a builtin.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=23376
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