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9abaef93c7
Does not pass toolstash, but only because it causes ATYPE instructions to be emitted in a different order, and it avoids emitting type metadata for unused variables. Change-Id: I3ec8f66a40b5af9213e0d6e852b267a8dd995838 Reviewed-on: https://go-review.googlesource.com/30217 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
// Copyright 2016 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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// +build !nacl
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package gc
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import (
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"reflect"
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"testing"
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"unsafe"
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)
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// Assert that the size of important structures do not change unexpectedly.
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func TestSizeof(t *testing.T) {
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const _64bit = unsafe.Sizeof(uintptr(0)) == 8
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var tests = []struct {
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val interface{} // type as a value
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_32bit uintptr // size on 32bit platforms
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_64bit uintptr // size on 64bit platforms
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}{
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{Func{}, 96, 168},
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{Name{}, 52, 80},
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{Node{}, 92, 144},
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{Sym{}, 60, 112},
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{Type{}, 52, 80},
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{MapType{}, 20, 40},
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{ForwardType{}, 16, 32},
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{FuncType{}, 28, 48},
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{StructType{}, 12, 24},
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{InterType{}, 4, 8},
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{ChanType{}, 8, 16},
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{ArrayType{}, 16, 24},
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{InterMethType{}, 4, 8},
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{DDDFieldType{}, 4, 8},
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{FuncArgsType{}, 4, 8},
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{ChanArgsType{}, 4, 8},
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{PtrType{}, 4, 8},
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{SliceType{}, 4, 8},
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}
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for _, tt := range tests {
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want := tt._32bit
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if _64bit {
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want = tt._64bit
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}
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got := reflect.TypeOf(tt.val).Size()
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if want != got {
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t.Errorf("unsafe.Sizeof(%T) = %d, want %d", tt.val, got, want)
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}
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}
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}
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