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f482a0f023
A followup CL will rewrite listsort to use the new cmpstackvarlt and change cmpstackvar to avoid stringsCompare. Change-Id: Idf0857a3bd67f9e2243ba82aa0bff510612927c3 Reviewed-on: https://go-review.googlesource.com/14611 Reviewed-by: Dave Cheney <dave@cheney.net>
102 lines
2.4 KiB
Go
102 lines
2.4 KiB
Go
// Copyright 2015 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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package gc
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import "testing"
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// Test all code paths for cmpstackvarlt.
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func TestCmpstackvar(t *testing.T) {
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testdata := []struct {
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a, b Node
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lt bool
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}{
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{
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Node{Class: PAUTO},
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Node{Class: PFUNC},
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false,
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},
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{
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Node{Class: PFUNC},
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Node{Class: PAUTO},
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true,
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},
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{
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Node{Class: PFUNC, Xoffset: 0},
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Node{Class: PFUNC, Xoffset: 10},
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true,
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},
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{
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Node{Class: PFUNC, Xoffset: 20},
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Node{Class: PFUNC, Xoffset: 10},
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false,
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},
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{
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Node{Class: PFUNC, Xoffset: 10},
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Node{Class: PFUNC, Xoffset: 10},
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false,
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},
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{
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Node{Class: PAUTO, Used: true},
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Node{Class: PAUTO, Used: false},
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true,
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},
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{
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Node{Class: PAUTO, Used: false},
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Node{Class: PAUTO, Used: true},
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false,
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},
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{
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Node{Class: PAUTO, Type: &Type{Haspointers: 1}}, // haspointers -> false
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Node{Class: PAUTO, Type: &Type{Haspointers: 2}}, // haspointers -> true
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false,
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},
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{
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Node{Class: PAUTO, Type: &Type{Haspointers: 2}}, // haspointers -> true
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Node{Class: PAUTO, Type: &Type{Haspointers: 1}}, // haspointers -> false
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true,
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},
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{
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Node{Class: PAUTO, Type: &Type{}, Name: &Name{Needzero: true}},
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Node{Class: PAUTO, Type: &Type{}, Name: &Name{Needzero: false}},
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true,
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},
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{
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Node{Class: PAUTO, Type: &Type{}, Name: &Name{Needzero: false}},
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Node{Class: PAUTO, Type: &Type{}, Name: &Name{Needzero: true}},
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false,
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},
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{
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Node{Class: PAUTO, Type: &Type{Width: 1}, Name: &Name{}},
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Node{Class: PAUTO, Type: &Type{Width: 2}, Name: &Name{}},
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false,
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},
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{
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Node{Class: PAUTO, Type: &Type{Width: 2}, Name: &Name{}},
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Node{Class: PAUTO, Type: &Type{Width: 1}, Name: &Name{}},
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true,
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},
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{
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Node{Class: PAUTO, Type: &Type{}, Name: &Name{}, Sym: &Sym{Name: "abc"}},
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Node{Class: PAUTO, Type: &Type{}, Name: &Name{}, Sym: &Sym{Name: "xyz"}},
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true,
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},
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{
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Node{Class: PAUTO, Type: &Type{}, Name: &Name{}, Sym: &Sym{Name: "abc"}},
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Node{Class: PAUTO, Type: &Type{}, Name: &Name{}, Sym: &Sym{Name: "abc"}},
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false,
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},
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{
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Node{Class: PAUTO, Type: &Type{}, Name: &Name{}, Sym: &Sym{Name: "xyz"}},
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Node{Class: PAUTO, Type: &Type{}, Name: &Name{}, Sym: &Sym{Name: "abc"}},
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false,
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},
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}
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for _, d := range testdata {
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got := cmpstackvarlt(&d.a, &d.b)
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if got != d.lt {
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t.Errorf("want %#v < %#v", d.a, d.b)
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}
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}
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}
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