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a27cd4fd31
And delete them from asm_test. Change-Id: I34fcf85ae8ce09cd146fe4ce6a0ae7616bd97e2d Reviewed-on: https://go-review.googlesource.com/102296 Run-TryBot: Alberto Donizetti <alb.donizetti@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Giovanni Bajo <rasky@develer.com>
135 lines
2.6 KiB
Go
135 lines
2.6 KiB
Go
// asmcheck
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// Copyright 2018 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 codegen
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import "unsafe"
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// This file contains code generation tests related to the comparison
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// operators.
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// -------------- //
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// Equality //
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// -------------- //
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// Check that compare to constant string use 2/4/8 byte compares
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func CompareString1(s string) bool {
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// amd64:`CMPW\t\(.*\), [$]`
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return s == "xx"
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}
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func CompareString2(s string) bool {
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// amd64:`CMPL\t\(.*\), [$]`
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return s == "xxxx"
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}
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func CompareString3(s string) bool {
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// amd64:`CMPQ\t\(.*\), [A-Z]`
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return s == "xxxxxxxx"
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}
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// Check that arrays compare use 2/4/8 byte compares
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func CompareArray1(a, b [2]byte) bool {
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// amd64:`CMPW\t""[.+_a-z0-9]+\(SP\), [A-Z]`
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return a == b
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}
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func CompareArray2(a, b [3]uint16) bool {
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// amd64:`CMPL\t""[.+_a-z0-9]+\(SP\), [A-Z]`
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// amd64:`CMPW\t""[.+_a-z0-9]+\(SP\), [A-Z]`
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return a == b
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}
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func CompareArray3(a, b [3]int16) bool {
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// amd64:`CMPL\t""[.+_a-z0-9]+\(SP\), [A-Z]`
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// amd64:`CMPW\t""[.+_a-z0-9]+\(SP\), [A-Z]`
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return a == b
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}
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func CompareArray4(a, b [12]int8) bool {
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// amd64:`CMPQ\t""[.+_a-z0-9]+\(SP\), [A-Z]`
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// amd64:`CMPL\t""[.+_a-z0-9]+\(SP\), [A-Z]`
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return a == b
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}
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func CompareArray5(a, b [15]byte) bool {
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// amd64:`CMPQ\t""[.+_a-z0-9]+\(SP\), [A-Z]`
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return a == b
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}
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// This was a TODO in mapaccess1_faststr
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func CompareArray6(a, b unsafe.Pointer) bool {
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// amd64:`CMPL\t\(.*\), [A-Z]`
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return *((*[4]byte)(a)) != *((*[4]byte)(b))
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}
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// -------------- //
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// Ordering //
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// -------------- //
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// Test that LEAQ/ADDQconst are folded into SETx ops
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func CmpFold(x uint32) bool {
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// amd64:`SETHI\t.*\(SP\)`
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return x > 4
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}
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// Test that direct comparisons with memory are generated when
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// possible
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func CmpMem1(p int, q *int) bool {
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// amd64:`CMPQ\t\(.*\), [A-Z]`
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return p < *q
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}
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func CmpMem2(p *int, q int) bool {
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// amd64:`CMPQ\t\(.*\), [A-Z]`
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return *p < q
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}
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func CmpMem3(p *int) bool {
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// amd64:`CMPQ\t\(.*\), [$]7`
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return *p < 7
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}
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func CmpMem4(p *int) bool {
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// amd64:`CMPQ\t\(.*\), [$]7`
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return 7 < *p
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}
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func CmpMem5(p **int) {
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// amd64:`CMPL\truntime.writeBarrier\(SB\), [$]0`
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*p = nil
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}
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// Check tbz/tbnz are generated when comparing against zero on arm64
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func CmpZero1(a int32, ptr *int) {
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if a < 0 { // arm64:"TBZ"
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*ptr = 0
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}
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}
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func CmpZero2(a int64, ptr *int) {
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if a < 0 { // arm64:"TBZ"
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*ptr = 0
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}
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}
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func CmpZero3(a int32, ptr *int) {
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if a >= 0 { // arm64:"TBNZ"
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*ptr = 0
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}
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}
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func CmpZero4(a int64, ptr *int) {
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if a >= 0 { // arm64:"TBNZ"
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*ptr = 0
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}
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}
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