2dbf15e88e
The front-end dead code elimination is very simple. Currently, it just looks for if statements with constant boolean conditions. Its main purpose is to reduce load on the compiler and shrink code before inlining computes hairiness. This CL teaches front-end dead code elimination about short-circuiting boolean expressions && and ||, since they're essentially the same as if statements. This also teaches the inliner that the constant 'if' form left behind by deadcode is free. These changes will help with runtime modifications in the next CL that would otherwise inhibit inlining in some hot code paths. Currently, however, they have no significant impact on benchmarks. Change-Id: I886203b3c4acdbfef08148fddd7f3a7af5afc7c1 Reviewed-on: https://go-review.googlesource.com/96778 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Matthew Dempsky <mdempsky@google.com> |
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The Go Programming Language
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