38519e69d0
Previously t.zero always pointed to runtime.zerovalue. Change the hashmap code to always return a runtime pointer directly, and change that pointer to point to a larger buffer if one is needed. (It might be better to only copy from the pointer returned by the mapaccess functions when the value type is small enough and have the compiler insert explicit zeroing for larger value types, but I tried and failed to do this). This removes all uses of the zero field of the type data; the field itself can be removed in a separate change. Fixes #11491 Change-Id: I5b81752ff4067d74a5a281c41e88f151bae0171e Reviewed-on: https://go-review.googlesource.com/13784 Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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