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| author | Youlin Feng <fengyoulin@live.com> | 2024-10-22 12:57:13 +0800 |
|---|---|---|
| committer | Gopher Robot <gobot@golang.org> | 2024-10-25 15:35:29 +0000 |
| commit | bb07aa644be4805e799c076f054c0fc132bc4d27 (patch) | |
| tree | 53a85dd5a8f9e9ef58193e9bc86550c95f5716f7 /test/codegen | |
| parent | dd4fee7ec63a30783fac7bfdc9a26b1e06a4b376 (diff) | |
| download | go-bb07aa644be4805e799c076f054c0fc132bc4d27.tar.xz | |
cmd/compile: add shift optimization test
For #69635
Change-Id: Id5696dc9724c3b3afcd7b60a6994f98c5309eb0e
Reviewed-on: https://go-review.googlesource.com/c/go/+/621755
Reviewed-by: Keith Randall <khr@golang.org>
Reviewed-by: Keith Randall <khr@google.com>
Reviewed-by: Michael Pratt <mpratt@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Auto-Submit: Michael Pratt <mpratt@google.com>
Diffstat (limited to 'test/codegen')
| -rw-r--r-- | test/codegen/issue69635.go | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/test/codegen/issue69635.go b/test/codegen/issue69635.go new file mode 100644 index 0000000000..de68bf1287 --- /dev/null +++ b/test/codegen/issue69635.go @@ -0,0 +1,13 @@ +// asmcheck + +// Copyright 2024 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package codegen + +func calc(a uint64) uint64 { + v := a >> 20 & 0x7f + // amd64: `SHRQ\s\$17, AX$`, `ANDL\s\$1016, AX$` + return v << 3 +} |