Keith Randall 3134ab3c2d cmd/compile: redo nil checks ... Get rid of BlockCheck. Josh goaded me into it, and I went down a rabbithole making it happen. NilCheck now panics if the pointer is nil and returns void, as before. BlockCheck is gone, and NilCheck is no longer a Control value for any block. It just exists (and deadcode knows not to throw it away). I rewrote the nilcheckelim pass to handle this case. In particular, there can now be multiple NilCheck ops per block. I moved all of the arch-dependent nil check elimination done as part of ssaGenValue into its own proper pass, so we don't have to duplicate that code for every architecture. Making the arch-dependent nil check its own pass means I needed to add a bunch of flags to the opcode table so I could write the code without arch-dependent ops everywhere. Change-Id: I419f891ac9b0de313033ff09115c374163416a9f Reviewed-on: https://go-review.googlesource.com/29120 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: David Chase <drchase@google.com>		2016-09-15 02:42:13 +00:00
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internal	cmd/compile: redo nil checks	2016-09-15 02:42:13 +00:00
doc.go	cmd/compile: document -l in godoc	2016-05-09 19:06:53 +00:00
fmt_test.go	cmd/compile: reduce allocs some more	2016-09-13 16:59:56 +00:00
main.go	cmd: use obj.GOOS, obj.GOARCH, etc	2016-09-09 16:38:45 +00:00