http://gcc.gnu.org/bugzilla/show_bug.cgi?id=52573
Jeffrey A. Law <law at redhat dot com> changed:
What |Removed |Added
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CC| |law at redhat dot com
--- Comment #11 from Jeffrey A. Law <law at redhat dot com> 2013-01-16 04:57:08
UTC ---
Alex, you might want to try with the full testcase rather than the reduced one.
I certainly continue to see the output and clobber being assigned to the same
hard reg.
Your patch to df-problems.c doesn't seem to help this particular problem:
[law@stumpy gcc]$ ./cc1 -O3 -funroll-loops j.c -quiet
j.c: In function 'testA':
j.c:90:60: warning: overflow in implicit constant conversion [-Woverflow]
struct A { unsigned int i : 6, l : 1, j : 10, k : 15; }; T(A)
^
j.c:53:10: note: in definition of macro 'T'
struct S x; \
^
j.c: In function 'testK':
j.c:100:60: warning: overflow in implicit constant conversion [-Woverflow]
struct K { unsigned int k : 6, l : 1, j : 10, i : 15; }; T(K)
^
j.c:53:10: note: in definition of macro 'T'
struct S x; \
^
[law@stumpy gcc]$ !gr
grep muls j.s | grep 2004318071
[ ... ]
muls.l #-2004318071,%d0:%d0
[ ... ]
