On 06/28/14 16:33, Marc Glisse wrote:
In an earlier version of the patch, I was using
get_or_create_ssa_default_def (cfun, sym);
(I was reusing the same variable). This passed bootstrap+testsuite on
all languages except for ada. Indeed, the compiler wanted to coalesce
several SSA_NAMEs, including those new ones, in out-of-ssa, but
couldn't.
And that's what you need to delve deeper into. Why did it refuse to
coalesce?
As long as the lifetimes do not overlap, then coalescing should have worked.
jeff
