------- Comment #11 from ebotcazou at gcc dot gnu dot org 2007-12-05 10:12
-------
We could probably get away with a kludge for -ffloat-store and optimization,
but currently the flag comes into play only very late (in TER) and I think
it's better to keep this.
So I think the approach to solving this is two-pronged:
- at -O0, do not promote the partial stores to total stores in the gimplifier,
- at -O1 or above, insert dummy initializations for "uninitialized" SSA names,
this should be cleaned up at the RTL level (if -ffloat-store is not passed).
Andrew, IIRC you extended DECL_COMPLEX_GIMPLE_REG_P to DECL_GIMPLE_REG_P, can
vectors be affected by the same issue?
--
ebotcazou at gcc dot gnu dot org changed:
What |Removed |Added
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CC| |pinskia at gcc dot gnu dot
| |org
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33088
