go /
go /
572d984eaa64e6e3a1a67ecde9f6a1038d76becc cmd/gc: fix escape analysis
If the analysis reached a node twice, then the analysis was cut off.
However, if the second arrival is at a lower depth (closer to escaping)
then it is important to repeat the traversal.
The repeating must be cut off at some point to avoid the occasional
infinite recursion. This CL cuts it off as soon as possible while still
passing all tests.
Fixes #4751.
R=ken2
CC=golang-dev, lvd
https://golang.org/cl/7303043
3 files changed
