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author | Cherry Zhang <cherryyz@google.com> | 2021-03-31 12:41:20 -0400 |
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committer | Cherry Zhang <cherryyz@google.com> | 2021-03-31 20:21:57 +0000 |
commit | 5d6581d74796ac748441c94e84eefdaf338d266c (patch) | |
tree | 3dd34175d091279046ec7a7ad175cc109fcf0266 /test/abi | |
parent | 4acefa07b1499b063e1ff63c9d4cab7b7f8d49a2 (diff) | |
download | go-5d6581d74796ac748441c94e84eefdaf338d266c.tar.gz go-5d6581d74796ac748441c94e84eefdaf338d266c.zip |
cmd/compile: deduplicate OpArg's across types
For in-register arguments, it must have only a single copy of it
present in the function. If there are multiple copies, it confuses
the register allocator, as they are in the same register.
Change-Id: I55cb06746f08aa7c9168026d0f411bce0a9f93f4
Reviewed-on: https://go-review.googlesource.com/c/go/+/306330
Trust: Cherry Zhang <cherryyz@google.com>
Run-TryBot: Cherry Zhang <cherryyz@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: David Chase <drchase@google.com>
Diffstat (limited to 'test/abi')
-rw-r--r-- | test/abi/defer_aggregate.go | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/test/abi/defer_aggregate.go b/test/abi/defer_aggregate.go new file mode 100644 index 0000000000..6dd82828c1 --- /dev/null +++ b/test/abi/defer_aggregate.go @@ -0,0 +1,48 @@ +// run + +// Copyright 2021 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 main + +const p0exp = "foo" +const p1exp = 10101 +const p2exp = 3030303 +const p3exp = 505050505 +const p4exp = 70707070707 + +//go:noinline +//go:registerparams +func callee(p0 string, p1 uint64, p2 uint64, p3 uint64, p4 uint64) { + if p0 != p0exp { + panic("bad p0") + } + if p1 != p1exp { + panic("bad p1") + } + if p2 != p2exp { + panic("bad p2") + } + if p3 != p3exp { + panic("bad p3") + } + if p4 != p4exp { + panic("bad p4") + } + defer func(p0 string, p2 uint64) { + if p0 != p0exp { + panic("defer bad p0") + } + if p1 != p1exp { + panic("defer bad p1") + } + if p2 != p2exp { + panic("defer bad p2") + } + }(p0, p2) +} + +func main() { + callee(p0exp, p1exp, p2exp, p3exp, p4exp) +} |