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📁 ..
📄 addressed_test.go(4.42 KB)
📄 append_test.go(1.16 KB)
📄 arithBoundary_test.go(31.31 KB)
📄 arithConst_test.go(633.8 KB)
📄 arith_test.go(41.51 KB)
📄 array_test.go(3.09 KB)
📄 assert_test.go(2.54 KB)
📄 break_test.go(3.67 KB)
📄 chan_test.go(1.14 KB)
📄 closure_test.go(572 B)
📄 cmpConst_test.go(103.06 KB)
📄 cmp_test.go(903 B)
📄 compound_test.go(2.7 KB)
📄 copy_test.go(150.18 KB)
📄 ctl_test.go(2.33 KB)
📄 deferNoReturn_test.go(481 B)
📄 divbyzero_test.go(1.01 KB)
📄 dupLoad_test.go(1.51 KB)
📄 flowgraph_generator1.go(6.72 KB)
📄 fp_test.go(34.99 KB)
📁 gen
📄 loadstore_test.go(4.79 KB)
📄 map_test.go(721 B)
📁 mysort
📄 namedReturn_test.go(1.63 KB)
📄 phi_test.go(2.21 KB)
📄 ptrsort.go(633 B)
📄 ptrsort.out(77 B)
📄 regalloc_test.go(1.2 KB)
📁 reproducible
📄 short_test.go(1.48 KB)
📄 slice_test.go(850 B)
📄 sqrtConst_test.go(1.26 KB)
📄 string_test.go(4.46 KB)
📄 unsafe_test.go(2.96 KB)
📄 zero_test.go(49.6 KB)

Editing: phi_test.go

// Copyright 2016 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

// Test to make sure spills of cast-shortened values
// don't end up spilling the pre-shortened size instead
// of the post-shortened size.

import (
	"runtime"
	"testing"
)

var data1 [26]int32
var data2 [26]int64

func init() {
	for i := 0; i < 26; i++ {
		// If we spill all 8 bytes of this datum, the 1 in the high-order 4 bytes
		// will overwrite some other variable in the stack frame.
		data2[i] = 0x100000000
	}
}

func foo() int32 {
	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 int32
	if always {
		a = data1[0]
		b = data1[1]
		c = data1[2]
		d = data1[3]
		e = data1[4]
		f = data1[5]
		g = data1[6]
		h = data1[7]
		i = data1[8]
		j = data1[9]
		k = data1[10]
		l = data1[11]
		m = data1[12]
		n = data1[13]
		o = data1[14]
		p = data1[15]
		q = data1[16]
		r = data1[17]
		s = data1[18]
		t = data1[19]
		u = data1[20]
		v = data1[21]
		w = data1[22]
		x = data1[23]
		y = data1[24]
		z = data1[25]
	} else {
		a = int32(data2[0])
		b = int32(data2[1])
		c = int32(data2[2])
		d = int32(data2[3])
		e = int32(data2[4])
		f = int32(data2[5])
		g = int32(data2[6])
		h = int32(data2[7])
		i = int32(data2[8])
		j = int32(data2[9])
		k = int32(data2[10])
		l = int32(data2[11])
		m = int32(data2[12])
		n = int32(data2[13])
		o = int32(data2[14])
		p = int32(data2[15])
		q = int32(data2[16])
		r = int32(data2[17])
		s = int32(data2[18])
		t = int32(data2[19])
		u = int32(data2[20])
		v = int32(data2[21])
		w = int32(data2[22])
		x = int32(data2[23])
		y = int32(data2[24])
		z = int32(data2[25])
	}
	// Lots of phis of the form phi(int32,int64) of type int32 happen here.
	// Some will be stack phis. For those stack phis, make sure the spill
	// of the second argument uses the phi's width (4 bytes), not its width
	// (8 bytes).  Otherwise, a random stack slot gets clobbered.

runtime.Gosched()
	return 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
}

func TestPhi(t *testing.T) {
	want := int32(0)
	got := foo()
	if got != want {
		t.Fatalf("want %d, got %d\n", want, got)
	}
}

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Editing: phi_test.go

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