2 commits

Author	SHA1	Message	Date
Josh Bleecher Snyder	1a3006b035	test: expand switch dead code test to include a range ... Change-Id: If443ffb50b140c466dcf4cc5340f44948bfa46a9 Reviewed-on: https://go-review.googlesource.com/26765 Reviewed-by: Matthew Dempsky <mdempsky@google.com>	2016-08-23 05:12:39 +00:00
Josh Bleecher Snyder	4ce06f4b5c	cmd/gc: eliminate dead code in switch statements ... Ordinary switch statements are rewritten into a sequence of if statements. Staticly dead cases were not being eliminated because the rewrite introduced a temporary, which hid the fact that the case was a constant. Stop doing that. This eliminates dead code in the standard library at: runtime/cgocall.go:219 runtime/cgocall.go:269 debug/gosym/pclntab.go:175 debug/macho/file.go:208 math/big/nat.go:635 math/big/nat.go:850 math/big/nat.go:1058 cmd/pprof/internal/commands/commands.go:86 net/sock_bsd.go:19 cmd/go/build.go:2657 cmd/go/env.go:90 Fixes #9608. Change-Id: Ic23a05dfbb1ad91d5f62a6506b35a13e51b33e38 Reviewed-on: https://go-review.googlesource.com/3980 Reviewed-by: Keith Randall <khr@golang.org>	2015-02-06 19:05:47 +00:00