mirror of https://github.com/golang/go.git
51 lines
1.2 KiB
Go
51 lines
1.2 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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// Tests phi implementation
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package main
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import "testing"
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func phiOverwrite_ssa() int {
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var n int
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for i := 0; i < 10; i++ {
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if i == 6 {
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break
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}
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n = i
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}
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return n
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}
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func phiOverwrite(t *testing.T) {
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want := 5
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got := phiOverwrite_ssa()
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if got != want {
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t.Errorf("phiOverwrite_ssa()= %d, got %d", want, got)
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}
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}
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func phiOverwriteBig_ssa() int {
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var a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z int
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a = 1
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for idx := 0; idx < 26; idx++ {
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a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z = b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z, a
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}
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return a*1 + b*2 + c*3 + d*4 + e*5 + f*6 + g*7 + h*8 + i*9 + j*10 + k*11 + l*12 + m*13 + n*14 + o*15 + p*16 + q*17 + r*18 + s*19 + t*20 + u*21 + v*22 + w*23 + x*24 + y*25 + z*26
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}
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func phiOverwriteBig(t *testing.T) {
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want := 1
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got := phiOverwriteBig_ssa()
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if got != want {
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t.Errorf("phiOverwriteBig_ssa()= %d, got %d", want, got)
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}
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}
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func TestRegalloc(t *testing.T) {
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phiOverwrite(t)
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phiOverwriteBig(t)
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}
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