runtime: remove odd-forcing of hash constants

We don't multiply by them any more, so no need to make them odd.

Suggested by me here in 2021:
https://go-review.googlesource.com/c/go/+/280372/comment/1a86b8aa_f64310bf/
Never got around to it until now.

Change-Id: Iddc675e6a18b4a7a785acbf77c96e127003cc3c5
Reviewed-on: https://go-review.googlesource.com/c/go/+/579116
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Keith Randall <khr@google.com>

diff --git a/src/runtime/alg.go b/src/runtime/alg.go
index aadd5f1002e8081418a9d7d927d39fb81eb42059..cab0abf5776313c899811ba0cac986340a6df524 100644 (file)
--- a/src/runtime/alg.go
+++ b/src/runtime/alg.go
@@ -391,7 +391,7 @@ func alginit() {
                return
        }
        for i := range hashkey {
-               hashkey[i] = uintptr(bootstrapRand()) | 1 // make sure these numbers are odd
+               hashkey[i] = uintptr(bootstrapRand())
        }
 }