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📁 ..
📄 README.md(8.14 KB)
📄 TODO(950 B)
📄 addressingmodes.go(23.64 KB)
📄 bench_test.go(531 B)
📄 biasedsparsemap.go(2.71 KB)
📄 block.go(11.1 KB)
📄 branchelim.go(11.98 KB)
📄 branchelim_test.go(5.21 KB)
📄 cache.go(2.46 KB)
📄 check.go(16.59 KB)
📄 checkbce.go(956 B)
📄 compile.go(18.19 KB)
📄 config.go(11.7 KB)
📄 copyelim.go(1.83 KB)
📄 copyelim_test.go(1.29 KB)
📄 critical.go(3.19 KB)
📄 cse.go(9.43 KB)
📄 cse_test.go(4.25 KB)
📄 deadcode.go(9.61 KB)
📄 deadcode_test.go(3.49 KB)
📄 deadstore.go(9.08 KB)
📄 deadstore_test.go(4.09 KB)
📄 debug.go(56.34 KB)
📄 debug_lines_test.go(8.29 KB)
📄 debug_test.go(28.75 KB)
📄 decompose.go(13.41 KB)
📄 dom.go(7.98 KB)
📄 dom_test.go(13.34 KB)
📄 expand_calls.go(63.5 KB)
📄 export_test.go(3.23 KB)
📄 flagalloc.go(6.68 KB)
📄 flags_amd64_test.s(533 B)
📄 flags_arm64_test.s(699 B)
📄 flags_test.go(2.49 KB)
📄 func.go(27.08 KB)
📄 func_test.go(13.07 KB)
📄 fuse.go(6.5 KB)
📄 fuse_branchredirect.go(3.24 KB)
📄 fuse_comparisons.go(4.04 KB)
📄 fuse_test.go(7.21 KB)
📁 gen
📄 html.go(34.72 KB)
📄 id.go(576 B)
📄 layout.go(4.82 KB)
📄 lca.go(3.77 KB)
📄 lca_test.go(1.65 KB)
📄 likelyadjust.go(15.24 KB)
📄 location.go(3.06 KB)
📄 loopbce.go(10.54 KB)
📄 loopreschedchecks.go(15.86 KB)
📄 looprotate.go(2.61 KB)
📄 lower.go(1.36 KB)
📄 magic.go(15.77 KB)
📄 magic_test.go(9.1 KB)
📄 nilcheck.go(11.06 KB)
📄 nilcheck_test.go(12.17 KB)
📄 numberlines.go(7.83 KB)
📄 op.go(18.65 KB)
📄 opGen.go(1.01 MB)
📄 opt.go(308 B)
📄 passbm_test.go(3.14 KB)
📄 phielim.go(1.48 KB)
📄 phiopt.go(8.08 KB)
📄 poset.go(37.2 KB)
📄 poset_test.go(18.14 KB)
📄 print.go(3.85 KB)
📄 prove.go(41.82 KB)
📄 regalloc.go(83.69 KB)
📄 regalloc_test.go(6.49 KB)
📄 rewrite.go(53.49 KB)
📄 rewrite386.go(289.01 KB)
📄 rewrite386splitload.go(4.05 KB)
📄 rewriteAMD64.go(888.95 KB)
📄 rewriteAMD64splitload.go(21.41 KB)
📄 rewriteARM.go(487.7 KB)
📄 rewriteARM64.go(751.84 KB)
📄 rewriteCond_test.go(10.62 KB)
📄 rewriteLOONG64.go(193.44 KB)
📄 rewriteMIPS.go(174.44 KB)
📄 rewriteMIPS64.go(195.55 KB)
📄 rewritePPC64.go(431.6 KB)
📄 rewriteRISCV64.go(159.66 KB)
📄 rewriteS390X.go(433.4 KB)
📄 rewriteWasm.go(109.86 KB)
📄 rewrite_test.go(6.91 KB)
📄 rewritedec.go(10.16 KB)
📄 rewritedec64.go(63.77 KB)
📄 rewritegeneric.go(617.96 KB)
📄 schedule.go(18.23 KB)
📄 schedule_test.go(2.91 KB)
📄 shift_test.go(4.05 KB)
📄 shortcircuit.go(12.63 KB)
📄 shortcircuit_test.go(1.31 KB)
📄 sizeof_test.go(855 B)
📄 softfloat.go(1.99 KB)
📄 sparsemap.go(1.98 KB)
📄 sparseset.go(1.54 KB)
📄 sparsetree.go(8.05 KB)
📄 stackalloc.go(12.79 KB)
📄 stackframe.go(290 B)
📄 stmtlines_test.go(2.96 KB)
📁 testdata
📄 tighten.go(4.3 KB)
📄 trim.go(4.24 KB)
📄 tuple.go(1.97 KB)
📄 value.go(15.21 KB)
📄 writebarrier.go(19.29 KB)
📄 writebarrier_test.go(1.75 KB)
📄 xposmap.go(3.29 KB)
📄 zcse.go(2.07 KB)
📄 zeroextension_test.go(1.66 KB)

Editing: schedule_test.go

// 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

import (
	"cmd/compile/internal/types"
	"testing"
)

func TestSchedule(t *testing.T) {
	c := testConfig(t)
	cases := []fun{
		c.Fun("entry",
			Bloc("entry",
				Valu("mem0", OpInitMem, types.TypeMem, 0, nil),
				Valu("ptr", OpConst64, c.config.Types.Int64, 0xABCD, nil),
				Valu("v", OpConst64, c.config.Types.Int64, 12, nil),
				Valu("mem1", OpStore, types.TypeMem, 0, c.config.Types.Int64, "ptr", "v", "mem0"),
				Valu("mem2", OpStore, types.TypeMem, 0, c.config.Types.Int64, "ptr", "v", "mem1"),
				Valu("mem3", OpStore, types.TypeMem, 0, c.config.Types.Int64, "ptr", "sum", "mem2"),
				Valu("l1", OpLoad, c.config.Types.Int64, 0, nil, "ptr", "mem1"),
				Valu("l2", OpLoad, c.config.Types.Int64, 0, nil, "ptr", "mem2"),
				Valu("sum", OpAdd64, c.config.Types.Int64, 0, nil, "l1", "l2"),
				Goto("exit")),
			Bloc("exit",
				Exit("mem3"))),
	}
	for _, c := range cases {
		schedule(c.f)
		if !isSingleLiveMem(c.f) {
			t.Error("single-live-mem restriction not enforced by schedule for func:")
			printFunc(c.f)
		}
	}
}

func isSingleLiveMem(f *Func) bool {
	for _, b := range f.Blocks {
		var liveMem *Value
		for _, v := range b.Values {
			for _, w := range v.Args {
				if w.Type.IsMemory() {
					if liveMem == nil {
						liveMem = w
						continue
					}
					if w != liveMem {
						return false
					}
				}
			}
			if v.Type.IsMemory() {
				liveMem = v
			}
		}
	}
	return true
}

func TestStoreOrder(t *testing.T) {
	// In the function below, v2 depends on v3 and v4, v4 depends on v3, and v3 depends on store v5.
	// storeOrder did not handle this case correctly.
	c := testConfig(t)
	fun := c.Fun("entry",
		Bloc("entry",
			Valu("mem0", OpInitMem, types.TypeMem, 0, nil),
			Valu("a", OpAdd64, c.config.Types.Int64, 0, nil, "b", "c"),                        // v2
			Valu("b", OpLoad, c.config.Types.Int64, 0, nil, "ptr", "mem1"),                    // v3
			Valu("c", OpNeg64, c.config.Types.Int64, 0, nil, "b"),                             // v4
			Valu("mem1", OpStore, types.TypeMem, 0, c.config.Types.Int64, "ptr", "v", "mem0"), // v5
			Valu("mem2", OpStore, types.TypeMem, 0, c.config.Types.Int64, "ptr", "a", "mem1"),
			Valu("ptr", OpConst64, c.config.Types.Int64, 0xABCD, nil),
			Valu("v", OpConst64, c.config.Types.Int64, 12, nil),
			Goto("exit")),
		Bloc("exit",
			Exit("mem2")))

CheckFunc(fun.f)
	order := storeOrder(fun.f.Blocks[0].Values, fun.f.newSparseSet(fun.f.NumValues()), make([]int32, fun.f.NumValues()))

// check that v2, v3, v4 is sorted after v5
	var ai, bi, ci, si int
	for i, v := range order {
		switch v.ID {
		case 2:
			ai = i
		case 3:
			bi = i
		case 4:
			ci = i
		case 5:
			si = i
		}
	}
	if ai < si || bi < si || ci < si {
		t.Logf("Func: %s", fun.f)
		t.Errorf("store order is wrong: got %v, want v2 v3 v4 after v5", order)
	}
}

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Editing: schedule_test.go

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