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16b1fce921
Add the aux type to opcodes. Add rematerializeable as a flag. Change-Id: I906e19281498f3ee51bb136299bf26e13a54b2ec Reviewed-on: https://go-review.googlesource.com/19088 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Todd Neal <todd@tneal.org>
48 lines
1.8 KiB
Go
48 lines
1.8 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 ssa
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import (
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"testing"
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)
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func TestShiftConstAMD64(t *testing.T) {
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c := testConfig(t)
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fun := makeConstShiftFunc(c, 18, OpLsh64x64, TypeUInt64)
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checkOpcodeCounts(t, fun.f, map[Op]int{OpAMD64SHLQconst: 1, OpAMD64CMPQconst: 0, OpAMD64ANDQconst: 0})
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fun.f.Free()
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fun = makeConstShiftFunc(c, 66, OpLsh64x64, TypeUInt64)
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checkOpcodeCounts(t, fun.f, map[Op]int{OpAMD64SHLQconst: 0, OpAMD64CMPQconst: 0, OpAMD64ANDQconst: 0})
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fun.f.Free()
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fun = makeConstShiftFunc(c, 18, OpRsh64Ux64, TypeUInt64)
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checkOpcodeCounts(t, fun.f, map[Op]int{OpAMD64SHRQconst: 1, OpAMD64CMPQconst: 0, OpAMD64ANDQconst: 0})
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fun.f.Free()
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fun = makeConstShiftFunc(c, 66, OpRsh64Ux64, TypeUInt64)
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checkOpcodeCounts(t, fun.f, map[Op]int{OpAMD64SHRQconst: 0, OpAMD64CMPQconst: 0, OpAMD64ANDQconst: 0})
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fun.f.Free()
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fun = makeConstShiftFunc(c, 18, OpRsh64x64, TypeInt64)
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checkOpcodeCounts(t, fun.f, map[Op]int{OpAMD64SARQconst: 1, OpAMD64CMPQconst: 0})
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fun.f.Free()
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fun = makeConstShiftFunc(c, 66, OpRsh64x64, TypeInt64)
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checkOpcodeCounts(t, fun.f, map[Op]int{OpAMD64SARQconst: 1, OpAMD64CMPQconst: 0})
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fun.f.Free()
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}
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func makeConstShiftFunc(c *Config, amount int64, op Op, typ Type) fun {
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ptyp := &TypeImpl{Size_: 8, Ptr: true, Name: "ptr"}
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fun := Fun(c, "entry",
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Bloc("entry",
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Valu("mem", OpInitMem, TypeMem, 0, nil),
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Valu("SP", OpSP, TypeUInt64, 0, nil),
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Valu("argptr", OpOffPtr, ptyp, 8, nil, "SP"),
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Valu("resptr", OpOffPtr, ptyp, 16, nil, "SP"),
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Valu("load", OpLoad, typ, 0, nil, "argptr", "mem"),
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Valu("c", OpConst64, TypeUInt64, amount, nil),
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Valu("shift", op, typ, 0, nil, "load", "c"),
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Valu("store", OpStore, TypeMem, 8, nil, "resptr", "shift", "mem"),
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Exit("store")))
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Compile(fun.f)
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return fun
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}
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