cmd/compile: preallocate storage for three Value args
benchstat master2 arg3b name old time/op new time/op delta Template 441ms ± 4% 444ms ± 6% ~ (p=0.335 n=22+25) GoTypes 1.51s ± 2% 1.51s ± 2% ~ (p=0.129 n=25+21) Compiler 5.59s ± 1% 5.56s ± 2% -0.65% (p=0.001 n=24+21) name old alloc/op new alloc/op delta Template 85.6MB ± 0% 85.3MB ± 0% -0.40% (p=0.000 n=25+24) GoTypes 307MB ± 0% 305MB ± 0% -0.38% (p=0.000 n=25+25) Compiler 1.06GB ± 0% 1.05GB ± 0% -0.43% (p=0.000 n=25+25) name old allocs/op new allocs/op delta Template 1.10M ± 0% 1.09M ± 0% -1.04% (p=0.000 n=25+25) GoTypes 3.36M ± 0% 3.32M ± 0% -1.13% (p=0.000 n=25+24) Compiler 13.0M ± 0% 12.9M ± 0% -1.12% (p=0.000 n=25+25) Change-Id: I1280b846e895c00b95bb6664958a7765bd819610 Reviewed-on: https://go-review.googlesource.com/20296Reviewed-by: Keith Randall <khr@golang.org>
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