[Bug c++/37922] [4.4 Regression] code generation error

[jakub at gcc dot gnu dot org]

------- Comment #9 from jakub at gcc dot gnu dot org  2008-12-16 12:08 -------
Indeed, -O2 -fpic returns 2, -O2 -fpic -fno-dse returns 0.  The difference
between the two are just 4 successful replace_read changes, like:
        movq    %rdx, 224(%rsp) # D.4704, proper_r
-       shrq    $32, %rdx       #, proper_r$den_
+       movl    228(%rsp), %edx # proper_r.den_, proper_r$den_
(- is without -fno-dse, + is with -fno-dse).  These look good, unless the
original %rdx is needed somewhere else.  I'll try to debug this.


-- 


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=37922