5aa59c6a99
Archreloc2 is a function pointer. It will escape its pointer arguments. In relocsym, as we pass &r and &rr to Archreloc2, it causes them to escape, even if Archreloc2 is not actually called. Instead, pass r by value. loader.Reloc2 is a small structure which is intended to be passed by value. For rr, as Archreloc2 will likely return true, we speculatively add it to extRelocs slice and use that space to pass to Archreloc2. Linking cmd/compile, name old alloc/op new alloc/op delta Dwarfcompress_GC 110MB ± 0% 24MB ± 0% -78.34% (p=0.008 n=5+5) Reloc_GC 24.6MB ± 0% 0.0MB ± 0% -100.00% (p=0.029 n=4+4) Linking cmd/compile using external linking name old alloc/op new alloc/op delta Reloc_GC 152MB ± 0% 36MB ± 0% -76.07% (p=0.008 n=5+5) Change-Id: I1415479e0c17ea9787f9a62453dce00ad9ea792f Reviewed-on: https://go-review.googlesource.com/c/go/+/231077 Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Jeremy Faller <jeremy@golang.org> |
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The Go Programming Language
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