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bb6d540c32
Fix casting of bool to 1-bit signed. Special casing is needed in
operator_cast::fold_range().
The testcase is the following, with a breakpoint in fold_range:
struct S { int s : 1; };
int a;
void
foo (int x, int y)
{
struct S s;
s.s = !!y;
while (1)
{
unsigned l = 94967295;
a = x || (s.s &= l);
}
}
From-SVN: r266775
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