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coypoop and ianlancetaylor syscall: avoid zeroing unused syscall arguments
Zeroing unused registers is not required. Removing it makes the code
very slightly smaller and very slightly faster.

Change-Id: I1ec17b497db971ca8a3641e3e94c063571419f27
GitHub-Last-Rev: f721bb2
GitHub-Pull-Request: #31596
Reviewed-by: Ian Lance Taylor <>
Latest commit 531f1d5 Apr 21, 2019

The Go Programming Language

Go is an open source programming language that makes it easy to build simple, reliable, and efficient software.

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