From 43a123c1ae6613b3efeed291fa552ecd909d3acf Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:23:18 +0200 Subject: Adding upstream version 1.20.14. Signed-off-by: Daniel Baumann --- src/cmd/compile/internal/ssa/id.go | 28 ++++++++++++++++++++++++++++ 1 file changed, 28 insertions(+) create mode 100644 src/cmd/compile/internal/ssa/id.go (limited to 'src/cmd/compile/internal/ssa/id.go') diff --git a/src/cmd/compile/internal/ssa/id.go b/src/cmd/compile/internal/ssa/id.go new file mode 100644 index 0000000..725279e --- /dev/null +++ b/src/cmd/compile/internal/ssa/id.go @@ -0,0 +1,28 @@ +// Copyright 2015 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 ssa + +type ID int32 + +// idAlloc provides an allocator for unique integers. +type idAlloc struct { + last ID +} + +// get allocates an ID and returns it. IDs are always > 0. +func (a *idAlloc) get() ID { + x := a.last + x++ + if x == 1<<31-1 { + panic("too many ids for this function") + } + a.last = x + return x +} + +// num returns the maximum ID ever returned + 1. +func (a *idAlloc) num() int { + return int(a.last + 1) +} -- cgit v1.2.3