--- Comment #3 from pinskia at gcc dot gnu dot org 2008-09-14 02:54 ---
Fixed on the trunk by IRA. There are no more unnecessary mov instructions.
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
-
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pinskia at gcc dot gnu dot org changed:
What|Removed |Added
Severity|normal |enhancement
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25225
--- Comment #2 from pinskia at gcc dot gnu dot org 2005-12-02 20:10 ---
I forgot one more thing, from local allocate:
;; Register 61 in 5.
;; Register 64 in 0.
;; Register 65 in 2.
Why are we putting reg 64 in ax, it says:
Register 64 used 2 times across 4 insns in block 3; set 1 time;
--- Comment #1 from pinskia at gcc dot gnu dot org 2005-12-02 18:41 ---
Confirmed.
local allocate does:
Register 58 used 6 times across 12 insns; set 2 times; user var; dies in 2
places; pref AREG, else GENERAL_REGS.
Which says that reg 58 prefers (r)ax.
And then global allocate says/d
