Martin Kustermann
933d8e913f
Hitting the assertion from the issue (see below) is innocent: It informs us that we should avoid speculating operands to be Smis if we actually know for sure the receiver cannot be a Smi (based on interface target). This particular case was hit on an instance call `a ^ b` where the interface type tells us it is `boo.^` - so we shouldn't insert CheckedSmiOp. There might be more cases where we insert CheckedSmiOp/CheckedSmiComparison instructions where we shouldn't (because interface target tells us receiver cannot be a Smi). -> In debug mode we'll hit this assertion, so if the fuzzer finds more such cases, we should fix them one-by-one. Fixes https://github.com/dart-lang/sdk/issues/40937 Change-Id: I55624f77b9edeece4d1334f1629ce5514cf3784a Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/139812 Reviewed-by: Ben Konyi <bkonyi@google.com> Reviewed-by: Alexander Markov <alexmarkov@google.com> Commit-Queue: Martin Kustermann <kustermann@google.com>