mirror of
https://github.com/golang/go
synced 2024-09-15 22:20:06 +00:00
ab8d7dd75e
Since CL 391014, cmd/compile now requires the -p flag to be set the build system. This CL changes it to initialize LocalPkg.Path to the provided path, rather than relying on writing out `"".` into object files and expecting cmd/link to substitute them. However, this actually involved a rather long tail of fixes. Many have already been submitted, but a few notable ones that have to land simultaneously with changing LocalPkg: 1. When compiling package runtime, there are really two "runtime" packages: types.LocalPkg (the source package itself) and ir.Pkgs.Runtime (the compiler's internal representation, for synthetic references). Previously, these ended up creating separate link symbols (`"".xxx` and `runtime.xxx`, respectively), but now they both end up as `runtime.xxx`, which causes lsym collisions (notably inittask and funcsyms). 2. test/codegen tests need to be updated to expect symbols to be named `command-line-arguments.xxx` rather than `"".foo`. 3. The issue20014 test case is sensitive to the sort order of field tracking symbols. In particular, the local package now sorts to its natural place in the list, rather than to the front. Thanks to David Chase for helping track down all of the fixes needed for this CL. Updates #51734. Change-Id: Iba3041cf7ad967d18c6e17922fa06ba11798b565 Reviewed-on: https://go-review.googlesource.com/c/go/+/393715 Reviewed-by: David Chase <drchase@google.com> Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Gopher Robot <gobot@golang.org> Reviewed-by: Cuong Manh Le <cuong.manhle.vn@gmail.com>
623 lines
12 KiB
Go
623 lines
12 KiB
Go
// asmcheck
|
|
|
|
// Copyright 2018 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 codegen
|
|
|
|
import "unsafe"
|
|
|
|
// This file contains code generation tests related to the comparison
|
|
// operators.
|
|
|
|
// -------------- //
|
|
// Equality //
|
|
// -------------- //
|
|
|
|
// Check that compare to constant string use 2/4/8 byte compares
|
|
|
|
func CompareString1(s string) bool {
|
|
// amd64:`CMPW\t\(.*\), [$]`
|
|
// arm64:`MOVHU\t\(.*\), [R]`,`CMPW\t[$]`
|
|
// ppc64le:`MOVHZ\t\(.*\), [R]`,`CMPW\t.*, [$]`
|
|
// s390x:`MOVHBR\t\(.*\), [R]`,`CMPW\t.*, [$]`
|
|
return s == "xx"
|
|
}
|
|
|
|
func CompareString2(s string) bool {
|
|
// amd64:`CMPL\t\(.*\), [$]`
|
|
// arm64:`MOVWU\t\(.*\), [R]`,`CMPW\t.*, [R]`
|
|
// ppc64le:`MOVWZ\t\(.*\), [R]`,`CMPW\t.*, [R]`
|
|
// s390x:`MOVWBR\t\(.*\), [R]`,`CMPW\t.*, [$]`
|
|
return s == "xxxx"
|
|
}
|
|
|
|
func CompareString3(s string) bool {
|
|
// amd64:`CMPQ\t\(.*\), [A-Z]`
|
|
// arm64:-`CMPW\t`
|
|
// ppc64:-`CMPW\t`
|
|
// ppc64le:-`CMPW\t`
|
|
// s390x:-`CMPW\t`
|
|
return s == "xxxxxxxx"
|
|
}
|
|
|
|
// Check that arrays compare use 2/4/8 byte compares
|
|
|
|
func CompareArray1(a, b [2]byte) bool {
|
|
// amd64:`CMPW\tcommand-line-arguments[.+_a-z0-9]+\(SP\), [A-Z]`
|
|
// arm64:-`MOVBU\t`
|
|
// ppc64le:-`MOVBZ\t`
|
|
// s390x:-`MOVBZ\t`
|
|
return a == b
|
|
}
|
|
|
|
func CompareArray2(a, b [3]uint16) bool {
|
|
// amd64:`CMPL\tcommand-line-arguments[.+_a-z0-9]+\(SP\), [A-Z]`
|
|
// amd64:`CMPW\tcommand-line-arguments[.+_a-z0-9]+\(SP\), [A-Z]`
|
|
return a == b
|
|
}
|
|
|
|
func CompareArray3(a, b [3]int16) bool {
|
|
// amd64:`CMPL\tcommand-line-arguments[.+_a-z0-9]+\(SP\), [A-Z]`
|
|
// amd64:`CMPW\tcommand-line-arguments[.+_a-z0-9]+\(SP\), [A-Z]`
|
|
return a == b
|
|
}
|
|
|
|
func CompareArray4(a, b [12]int8) bool {
|
|
// amd64:`CMPQ\tcommand-line-arguments[.+_a-z0-9]+\(SP\), [A-Z]`
|
|
// amd64:`CMPL\tcommand-line-arguments[.+_a-z0-9]+\(SP\), [A-Z]`
|
|
return a == b
|
|
}
|
|
|
|
func CompareArray5(a, b [15]byte) bool {
|
|
// amd64:`CMPQ\tcommand-line-arguments[.+_a-z0-9]+\(SP\), [A-Z]`
|
|
return a == b
|
|
}
|
|
|
|
// This was a TODO in mapaccess1_faststr
|
|
func CompareArray6(a, b unsafe.Pointer) bool {
|
|
// amd64:`CMPL\t\(.*\), [A-Z]`
|
|
// arm64:`MOVWU\t\(.*\), [R]`,`CMPW\t.*, [R]`
|
|
// ppc64le:`MOVWZ\t\(.*\), [R]`,`CMPW\t.*, [R]`
|
|
// s390x:`MOVWBR\t\(.*\), [R]`,`CMPW\t.*, [R]`
|
|
return *((*[4]byte)(a)) != *((*[4]byte)(b))
|
|
}
|
|
|
|
// -------------- //
|
|
// Ordering //
|
|
// -------------- //
|
|
|
|
// Test that LEAQ/ADDQconst are folded into SETx ops
|
|
|
|
var r bool
|
|
|
|
func CmpFold(x uint32) {
|
|
// amd64:`SETHI\t.*\(SB\)`
|
|
r = x > 4
|
|
}
|
|
|
|
// Test that direct comparisons with memory are generated when
|
|
// possible
|
|
|
|
func CmpMem1(p int, q *int) bool {
|
|
// amd64:`CMPQ\t\(.*\), [A-Z]`
|
|
return p < *q
|
|
}
|
|
|
|
func CmpMem2(p *int, q int) bool {
|
|
// amd64:`CMPQ\t\(.*\), [A-Z]`
|
|
return *p < q
|
|
}
|
|
|
|
func CmpMem3(p *int) bool {
|
|
// amd64:`CMPQ\t\(.*\), [$]7`
|
|
return *p < 7
|
|
}
|
|
|
|
func CmpMem4(p *int) bool {
|
|
// amd64:`CMPQ\t\(.*\), [$]7`
|
|
return 7 < *p
|
|
}
|
|
|
|
func CmpMem5(p **int) {
|
|
// amd64:`CMPL\truntime.writeBarrier\(SB\), [$]0`
|
|
*p = nil
|
|
}
|
|
|
|
func CmpMem6(a []int) int {
|
|
// 386:`CMPL\s8\([A-Z]+\),`
|
|
// amd64:`CMPQ\s16\([A-Z]+\),`
|
|
if a[1] > a[2] {
|
|
return 1
|
|
} else {
|
|
return 2
|
|
}
|
|
}
|
|
|
|
// Check tbz/tbnz are generated when comparing against zero on arm64
|
|
|
|
func CmpZero1(a int32, ptr *int) {
|
|
if a < 0 { // arm64:"TBZ"
|
|
*ptr = 0
|
|
}
|
|
}
|
|
|
|
func CmpZero2(a int64, ptr *int) {
|
|
if a < 0 { // arm64:"TBZ"
|
|
*ptr = 0
|
|
}
|
|
}
|
|
|
|
func CmpZero3(a int32, ptr *int) {
|
|
if a >= 0 { // arm64:"TBNZ"
|
|
*ptr = 0
|
|
}
|
|
}
|
|
|
|
func CmpZero4(a int64, ptr *int) {
|
|
if a >= 0 { // arm64:"TBNZ"
|
|
*ptr = 0
|
|
}
|
|
}
|
|
|
|
func CmpToZero(a, b, d int32, e, f int64, deOptC0, deOptC1 bool) int32 {
|
|
// arm:`TST`,-`AND`
|
|
// arm64:`TSTW`,-`AND`
|
|
// 386:`TESTL`,-`ANDL`
|
|
// amd64:`TESTL`,-`ANDL`
|
|
c0 := a&b < 0
|
|
// arm:`CMN`,-`ADD`
|
|
// arm64:`CMNW`,-`ADD`
|
|
c1 := a+b < 0
|
|
// arm:`TEQ`,-`XOR`
|
|
c2 := a^b < 0
|
|
// arm64:`TST`,-`AND`
|
|
// amd64:`TESTQ`,-`ANDQ`
|
|
c3 := e&f < 0
|
|
// arm64:`CMN`,-`ADD`
|
|
c4 := e+f < 0
|
|
// not optimized to single CMNW/CMN due to further use of b+d
|
|
// arm64:`ADD`,-`CMNW`
|
|
// arm:`ADD`,-`CMN`
|
|
c5 := b+d == 0
|
|
// not optimized to single TSTW/TST due to further use of a&d
|
|
// arm64:`AND`,-`TSTW`
|
|
// arm:`AND`,-`TST`
|
|
// 386:`ANDL`
|
|
c6 := a&d >= 0
|
|
// arm64:`TST\sR[0-9]+<<3,\sR[0-9]+`
|
|
c7 := e&(f<<3) < 0
|
|
// arm64:`CMN\sR[0-9]+<<3,\sR[0-9]+`
|
|
c8 := e+(f<<3) < 0
|
|
if c0 {
|
|
return 1
|
|
} else if c1 {
|
|
return 2
|
|
} else if c2 {
|
|
return 3
|
|
} else if c3 {
|
|
return 4
|
|
} else if c4 {
|
|
return 5
|
|
} else if c5 {
|
|
return 6
|
|
} else if c6 {
|
|
return 7
|
|
} else if c7 {
|
|
return 9
|
|
} else if c8 {
|
|
return 10
|
|
} else if deOptC0 {
|
|
return b + d
|
|
} else if deOptC1 {
|
|
return a & d
|
|
} else {
|
|
return 0
|
|
}
|
|
}
|
|
|
|
func CmpLogicalToZero(a, b, c uint32, d, e uint64) uint64 {
|
|
|
|
// ppc64:"ANDCC",-"CMPW"
|
|
// ppc64le:"ANDCC",-"CMPW"
|
|
// wasm:"I64Eqz",-"I32Eqz",-"I64ExtendI32U",-"I32WrapI64"
|
|
if a&63 == 0 {
|
|
return 1
|
|
}
|
|
|
|
// ppc64:"ANDCC",-"CMP"
|
|
// ppc64le:"ANDCC",-"CMP"
|
|
// wasm:"I64Eqz",-"I32Eqz",-"I64ExtendI32U",-"I32WrapI64"
|
|
if d&255 == 0 {
|
|
return 1
|
|
}
|
|
|
|
// ppc64:"ANDCC",-"CMP"
|
|
// ppc64le:"ANDCC",-"CMP"
|
|
// wasm:"I64Eqz",-"I32Eqz",-"I64ExtendI32U",-"I32WrapI64"
|
|
if d&e == 0 {
|
|
return 1
|
|
}
|
|
// ppc64:"ORCC",-"CMP"
|
|
// ppc64le:"ORCC",-"CMP"
|
|
// wasm:"I64Eqz",-"I32Eqz",-"I64ExtendI32U",-"I32WrapI64"
|
|
if d|e == 0 {
|
|
return 1
|
|
}
|
|
|
|
// ppc64:"XORCC",-"CMP"
|
|
// ppc64le:"XORCC",-"CMP"
|
|
// wasm:"I64Eqz","I32Eqz",-"I64ExtendI32U",-"I32WrapI64"
|
|
if e^d == 0 {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
// The following CmpToZero_ex* check that cmp|cmn with bmi|bpl are generated for
|
|
// 'comparing to zero' expressions
|
|
|
|
// var + const
|
|
// 'x-const' might be canonicalized to 'x+(-const)', so we check both
|
|
// CMN and CMP for subtraction expressions to make the pattern robust.
|
|
func CmpToZero_ex1(a int64, e int32) int {
|
|
// arm64:`CMN`,-`ADD`,`(BMI|BPL)`
|
|
if a+3 < 0 {
|
|
return 1
|
|
}
|
|
|
|
// arm64:`CMN`,-`ADD`,`BEQ`,`(BMI|BPL)`
|
|
if a+5 <= 0 {
|
|
return 1
|
|
}
|
|
|
|
// arm64:`CMN`,-`ADD`,`(BMI|BPL)`
|
|
if a+13 >= 0 {
|
|
return 2
|
|
}
|
|
|
|
// arm64:`CMP|CMN`,-`(ADD|SUB)`,`(BMI|BPL)`
|
|
if a-7 < 0 {
|
|
return 3
|
|
}
|
|
|
|
// arm64:`CMP|CMN`,-`(ADD|SUB)`,`(BMI|BPL)`
|
|
if a-11 >= 0 {
|
|
return 4
|
|
}
|
|
|
|
// arm64:`CMP|CMN`,-`(ADD|SUB)`,`BEQ`,`(BMI|BPL)`
|
|
if a-19 > 0 {
|
|
return 4
|
|
}
|
|
|
|
// arm64:`CMNW`,-`ADDW`,`(BMI|BPL)`
|
|
// arm:`CMN`,-`ADD`,`(BMI|BPL)`
|
|
if e+3 < 0 {
|
|
return 5
|
|
}
|
|
|
|
// arm64:`CMNW`,-`ADDW`,`(BMI|BPL)`
|
|
// arm:`CMN`,-`ADD`,`(BMI|BPL)`
|
|
if e+13 >= 0 {
|
|
return 6
|
|
}
|
|
|
|
// arm64:`CMPW|CMNW`,`(BMI|BPL)`
|
|
// arm:`CMP|CMN`, -`(ADD|SUB)`, `(BMI|BPL)`
|
|
if e-7 < 0 {
|
|
return 7
|
|
}
|
|
|
|
// arm64:`CMPW|CMNW`,`(BMI|BPL)`
|
|
// arm:`CMP|CMN`, -`(ADD|SUB)`, `(BMI|BPL)`
|
|
if e-11 >= 0 {
|
|
return 8
|
|
}
|
|
|
|
return 0
|
|
}
|
|
|
|
// var + var
|
|
// TODO: optimize 'var - var'
|
|
func CmpToZero_ex2(a, b, c int64, e, f, g int32) int {
|
|
// arm64:`CMN`,-`ADD`,`(BMI|BPL)`
|
|
if a+b < 0 {
|
|
return 1
|
|
}
|
|
|
|
// arm64:`CMN`,-`ADD`,`BEQ`,`(BMI|BPL)`
|
|
if a+c <= 0 {
|
|
return 1
|
|
}
|
|
|
|
// arm64:`CMN`,-`ADD`,`(BMI|BPL)`
|
|
if b+c >= 0 {
|
|
return 2
|
|
}
|
|
|
|
// arm64:`CMNW`,-`ADDW`,`(BMI|BPL)`
|
|
// arm:`CMN`,-`ADD`,`(BMI|BPL)`
|
|
if e+f < 0 {
|
|
return 5
|
|
}
|
|
|
|
// arm64:`CMNW`,-`ADDW`,`(BMI|BPL)`
|
|
// arm:`CMN`,-`ADD`,`(BMI|BPL)`
|
|
if f+g >= 0 {
|
|
return 6
|
|
}
|
|
return 0
|
|
}
|
|
|
|
// var + var*var
|
|
func CmpToZero_ex3(a, b, c, d int64, e, f, g, h int32) int {
|
|
// arm64:`CMN`,-`MADD`,`MUL`,`(BMI|BPL)`
|
|
if a+b*c < 0 {
|
|
return 1
|
|
}
|
|
|
|
// arm64:`CMN`,-`MADD`,`MUL`,`(BMI|BPL)`
|
|
if b+c*d >= 0 {
|
|
return 2
|
|
}
|
|
|
|
// arm64:`CMNW`,-`MADDW`,`MULW`,`BEQ`,`(BMI|BPL)`
|
|
// arm:`CMN`,-`MULA`,`MUL`,`BEQ`,`(BMI|BPL)`
|
|
if e+f*g > 0 {
|
|
return 5
|
|
}
|
|
|
|
// arm64:`CMNW`,-`MADDW`,`MULW`,`BEQ`,`(BMI|BPL)`
|
|
// arm:`CMN`,-`MULA`,`MUL`,`BEQ`,`(BMI|BPL)`
|
|
if f+g*h <= 0 {
|
|
return 6
|
|
}
|
|
return 0
|
|
}
|
|
|
|
// var - var*var
|
|
func CmpToZero_ex4(a, b, c, d int64, e, f, g, h int32) int {
|
|
// arm64:`CMP`,-`MSUB`,`MUL`,`BEQ`,`(BMI|BPL)`
|
|
if a-b*c > 0 {
|
|
return 1
|
|
}
|
|
|
|
// arm64:`CMP`,-`MSUB`,`MUL`,`(BMI|BPL)`
|
|
if b-c*d >= 0 {
|
|
return 2
|
|
}
|
|
|
|
// arm64:`CMPW`,-`MSUBW`,`MULW`,`(BMI|BPL)`
|
|
if e-f*g < 0 {
|
|
return 5
|
|
}
|
|
|
|
// arm64:`CMPW`,-`MSUBW`,`MULW`,`(BMI|BPL)`
|
|
if f-g*h >= 0 {
|
|
return 6
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func CmpToZero_ex5(e, f int32, u uint32) int {
|
|
// arm:`CMN`,-`ADD`,`BEQ`,`(BMI|BPL)`
|
|
if e+f<<1 > 0 {
|
|
return 1
|
|
}
|
|
|
|
// arm:`CMP`,-`SUB`,`(BMI|BPL)`
|
|
if f-int32(u>>2) >= 0 {
|
|
return 2
|
|
}
|
|
return 0
|
|
}
|
|
func UintLtZero(a uint8, b uint16, c uint32, d uint64) int {
|
|
// amd64: -`(TESTB|TESTW|TESTL|TESTQ|JCC|JCS)`
|
|
// arm64: -`(CMPW|CMP|BHS|BLO)`
|
|
if a < 0 || b < 0 || c < 0 || d < 0 {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func UintGeqZero(a uint8, b uint16, c uint32, d uint64) int {
|
|
// amd64: -`(TESTB|TESTW|TESTL|TESTQ|JCS|JCC)`
|
|
// arm64: -`(CMPW|CMP|BLO|BHS)`
|
|
if a >= 0 || b >= 0 || c >= 0 || d >= 0 {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func UintGtZero(a uint8, b uint16, c uint32, d uint64) int {
|
|
// arm64: `(CBN?ZW)`, `(CBN?Z[^W])`, -`(CMPW|CMP|BLS|BHI)`
|
|
if a > 0 || b > 0 || c > 0 || d > 0 {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func UintLeqZero(a uint8, b uint16, c uint32, d uint64) int {
|
|
// arm64: `(CBN?ZW)`, `(CBN?Z[^W])`, -`(CMPW|CMP|BHI|BLS)`
|
|
if a <= 0 || b <= 0 || c <= 0 || d <= 0 {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func UintLtOne(a uint8, b uint16, c uint32, d uint64) int {
|
|
// arm64: `(CBN?ZW)`, `(CBN?Z[^W])`, -`(CMPW|CMP|BHS|BLO)`
|
|
if a < 1 || b < 1 || c < 1 || d < 1 {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func UintGeqOne(a uint8, b uint16, c uint32, d uint64) int {
|
|
// arm64: `(CBN?ZW)`, `(CBN?Z[^W])`, -`(CMPW|CMP|BLO|BHS)`
|
|
if a >= 1 || b >= 1 || c >= 1 || d >= 1 {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func CmpToZeroU_ex1(a uint8, b uint16, c uint32, d uint64) int {
|
|
// wasm:"I64Eqz"-"I64LtU"
|
|
if 0 < a {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LtU"
|
|
if 0 < b {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LtU"
|
|
if 0 < c {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LtU"
|
|
if 0 < d {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func CmpToZeroU_ex2(a uint8, b uint16, c uint32, d uint64) int {
|
|
// wasm:"I64Eqz"-"I64LeU"
|
|
if a <= 0 {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LeU"
|
|
if b <= 0 {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LeU"
|
|
if c <= 0 {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LeU"
|
|
if d <= 0 {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func CmpToOneU_ex1(a uint8, b uint16, c uint32, d uint64) int {
|
|
// wasm:"I64Eqz"-"I64LtU"
|
|
if a < 1 {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LtU"
|
|
if b < 1 {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LtU"
|
|
if c < 1 {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LtU"
|
|
if d < 1 {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
func CmpToOneU_ex2(a uint8, b uint16, c uint32, d uint64) int {
|
|
// wasm:"I64Eqz"-"I64LeU"
|
|
if 1 <= a {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LeU"
|
|
if 1 <= b {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LeU"
|
|
if 1 <= c {
|
|
return 1
|
|
}
|
|
// wasm:"I64Eqz"-"I64LeU"
|
|
if 1 <= d {
|
|
return 1
|
|
}
|
|
return 0
|
|
}
|
|
|
|
// Check that small memequals are replaced with eq instructions
|
|
|
|
func equalConstString1() bool {
|
|
a := string("A")
|
|
b := string("Z")
|
|
// amd64:-".*memequal"
|
|
// arm64:-".*memequal"
|
|
// ppc64:-".*memequal"
|
|
// ppc64le:-".*memequal"
|
|
return a == b
|
|
}
|
|
|
|
func equalVarString1(a string) bool {
|
|
b := string("Z")
|
|
// amd64:-".*memequal"
|
|
// arm64:-".*memequal"
|
|
// ppc64:-".*memequal"
|
|
// ppc64le:-".*memequal"
|
|
return a[:1] == b
|
|
}
|
|
|
|
func equalConstString2() bool {
|
|
a := string("AA")
|
|
b := string("ZZ")
|
|
// amd64:-".*memequal"
|
|
// arm64:-".*memequal"
|
|
// ppc64:-".*memequal"
|
|
// ppc64le:-".*memequal"
|
|
return a == b
|
|
}
|
|
|
|
func equalVarString2(a string) bool {
|
|
b := string("ZZ")
|
|
// amd64:-".*memequal"
|
|
// arm64:-".*memequal"
|
|
// ppc64:-".*memequal"
|
|
// ppc64le:-".*memequal"
|
|
return a[:2] == b
|
|
}
|
|
|
|
func equalConstString4() bool {
|
|
a := string("AAAA")
|
|
b := string("ZZZZ")
|
|
// amd64:-".*memequal"
|
|
// arm64:-".*memequal"
|
|
// ppc64:-".*memequal"
|
|
// ppc64le:-".*memequal"
|
|
return a == b
|
|
}
|
|
|
|
func equalVarString4(a string) bool {
|
|
b := string("ZZZZ")
|
|
// amd64:-".*memequal"
|
|
// arm64:-".*memequal"
|
|
// ppc64:-".*memequal"
|
|
// ppc64le:-".*memequal"
|
|
return a[:4] == b
|
|
}
|
|
|
|
func equalConstString8() bool {
|
|
a := string("AAAAAAAA")
|
|
b := string("ZZZZZZZZ")
|
|
// amd64:-".*memequal"
|
|
// arm64:-".*memequal"
|
|
// ppc64:-".*memequal"
|
|
// ppc64le:-".*memequal"
|
|
return a == b
|
|
}
|
|
|
|
func equalVarString8(a string) bool {
|
|
b := string("ZZZZZZZZ")
|
|
// amd64:-".*memequal"
|
|
// arm64:-".*memequal"
|
|
// ppc64:-".*memequal"
|
|
// ppc64le:-".*memequal"
|
|
return a[:8] == b
|
|
}
|