c26f954a54
This patch provides a better long-term fix for the compiler's zerorange() helper function to make it generate code friendly to the register ABI. CL 305829 did part of the work, but didn't properly handle the case where the compiler emits a REP.STOSQ sequence; this patch changes the REP code to make sure it doesn't clobber any incoming register parameter values. Also included is a test that is specifically written to trigger the REP emit code in the compiler (prior to this, this code was not being hit on linux/amd64 all.bash). Updates #45372. Updates #40724. Change-Id: Iaf1c4e709e98eda45cd6f3aeebda0fe9160f1f42 Reviewed-on: https://go-review.googlesource.com/c/go/+/307829 Trust: Than McIntosh <thanm@google.com> Run-TryBot: Than McIntosh <thanm@google.com> Reviewed-by: Cherry Zhang <cherryyz@google.com> |
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README.md
The Go Programming Language
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