3c09001917
In regalloc, a sparse map is preallocated for later use by spill-in-loop sinking. However, variables (spills) are added during register allocation before spill sinking, and a map query involving any of these new variables will index out of bounds in the map. To fix: 1) fix the queries to use s.orig[v.ID].ID instead, to ensure proper indexing. Note that s.orig will be nil for values that are not eligible for spilling (like memory and flags). 2) add a test. Fixes #15585. Change-Id: I8f2caa93b132a0f2a9161d2178320d5550583075 Reviewed-on: https://go-review.googlesource.com/22911 Reviewed-by: Keith Randall <khr@golang.org> Run-TryBot: David Chase <drchase@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> |
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The Go Programming Language
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Binary Distribution Notes
If you have just untarred a binary Go distribution, you need to set the environment variable $GOROOT to the full path of the go directory (the one containing this file). You can omit the variable if you unpack it into /usr/local/go, or if you rebuild from sources by running all.bash (see doc/install-source.html). You should also add the Go binary directory $GOROOT/bin to your shell's path.
For example, if you extracted the tar file into $HOME/go, you might put the following in your .profile:
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