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make sure a spill slot is initialized

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If an instruction does not have a result, the
variable `s` is not set. This could lead to a
bogus slot assignment.
This commit is contained in:
Quentin Carbonneaux 2019-04-08 11:52:44 +02:00
parent f622efa05a
commit d84f5fcbb7
1 changed files with 1 additions and 0 deletions
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spill.c
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@ -404,6 +404,7 @@ spill(Fn *fn)
continue; continue;
} }
bszero(w); bszero(w);
s = -1;
if (!req(i->to, R)) { if (!req(i->to, R)) {
assert(rtype(i->to) == RTmp); assert(rtype(i->to) == RTmp);
t = i->to.val; t = i->to.val;