commit a0262b201f6d66142ae1e01723430a2471799404
author David Chase <drchase@google.com> Fri Nov 08 17:11:48 2019 -0500
committer David Chase <drchase@google.com> Sat Nov 09 05:51:04 2019 +0000
tree 9a70590421048ff0c65a713d29e3beec1a22ffa2
parent bde1968e4c1d0d43d1d558a364eb427ef2143c42

cmd/compile: intrinsify functions added to runtime/internal/sys

This restores intrinsic status to functions copied from math/bits
into runtime/internal/sys, as an aid to runtime performance.

Updates #35112.

Change-Id: I41a7d87cf00f1e64d82aa95c5b1000bc128de820
Reviewed-on: https://go-review.googlesource.com/c/go/+/206200
Run-TryBot: David Chase <drchase@google.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Cherry Zhang <cherryyz@google.com>

src/cmd/compile/internal/gc/ssa.go

diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go
index 6b5a6a3..054fb8c 100644
--- a/src/cmd/compile/internal/gc/ssa.go
+++ b/src/cmd/compile/internal/gc/ssa.go
@@ -3519,6 +3519,11 @@
 	alias("runtime/internal/atomic", "CasRel", "runtime/internal/atomic", "Cas", lwatomics...)
 
 	alias("runtime/internal/sys", "Ctz8", "math/bits", "TrailingZeros8", all...)
+	alias("runtime/internal/sys", "TrailingZeros8", "math/bits", "TrailingZeros8", all...)
+	alias("runtime/internal/sys", "TrailingZeros64", "math/bits", "TrailingZeros64", all...)
+	alias("runtime/internal/sys", "Len8", "math/bits", "Len8", all...)
+	alias("runtime/internal/sys", "Len64", "math/bits", "Len64", all...)
+	alias("runtime/internal/sys", "OnesCount64", "math/bits", "OnesCount64", all...)
 
 	/******** math ********/
 	addF("math", "Sqrt",