f0ebf6e322
This patch fixes type traversal to avoid compiler crashes for test
cases where a type T includes an expression that refers back to the
type without actually explicitly mentioning T. Examples include
var x [uintptr(unsafe.Sizeof(&x))]byte
var a [len(a)]int
The fix involves expanding the set of types that the traversal code
"remembers" (to avoid cycles) to include array types, and introducing an
additional guard in Builtin_call_expression::do_is_constant to catch
cyclic type constructs.
Fixes golang/go#25299
Fixes golang/go#25679
Fixes golang/go#25315
Fixes golang/go#25680
Reviewed-on: https://go-review.googlesource.com/115796
From-SVN: r261168
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| libffi | ||
| libgcc | ||
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| libgo | ||
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| libhsail-rt | ||
| libiberty | ||
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| libobjc | ||
| liboffloadmic | ||
| libquadmath | ||
| libsanitizer | ||
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