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915c1839fe
Separate patterns in asmcheck by spaces instead of commas. Many patterns end in comma (like "MOV [$]123,") so separating patterns by comma is not great; they're already quoted, so spaces are fine. Also replace all tabs in the assembly lines with spaces before matching. Finally, replace \$ or \\$ with [$] as the matching idiom. The effect of all these is to make the patterns look like: // amd64:"BSFQ" "ORQ [$]256" instead of the old: // amd64:"BSFQ","ORQ\t\\$256" Update all tests as well. Change-Id: Ia39febe5d7f67ba115846422789e11b185d5c807 Reviewed-on: https://go-review.googlesource.com/c/go/+/716060 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: Alan Donovan <adonovan@google.com> Reviewed-by: Jorropo <jorropo.pgm@gmail.com>
209 lines
4.2 KiB
Go
209 lines
4.2 KiB
Go
// asmcheck
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// Copyright 2021 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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func andn64(x, y int64) int64 {
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// amd64/v3:"ANDNQ"
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return x &^ y
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}
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func andn32(x, y int32) int32 {
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// amd64/v3:"ANDNL"
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return x &^ y
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}
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func blsi64(x int64) int64 {
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// amd64/v3:"BLSIQ"
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return x & -x
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}
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func blsi32(x int32) int32 {
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// amd64/v3:"BLSIL"
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return x & -x
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}
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func blsmsk64(x int64) int64 {
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// amd64/v3:"BLSMSKQ"
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return x ^ (x - 1)
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}
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func blsmsk32(x int32) int32 {
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// amd64/v3:"BLSMSKL"
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return x ^ (x - 1)
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}
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func blsr64(x int64) int64 {
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// amd64/v3:"BLSRQ"
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return x & (x - 1)
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}
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func blsr32(x int32) int32 {
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// amd64/v3:"BLSRL"
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return x & (x - 1)
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}
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func isPowerOfTwo64(x int64) bool {
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// amd64/v3:"BLSRQ" -"TESTQ" -"CALL"
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return blsr64(x) == 0
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}
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func isPowerOfTwo32(x int32) bool {
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// amd64/v3:"BLSRL" -"TESTL" -"CALL"
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return blsr32(x) == 0
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}
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func isPowerOfTwoSelect64(x, a, b int64) int64 {
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var r int64
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// amd64/v3:"BLSRQ" -"TESTQ" -"CALL"
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if isPowerOfTwo64(x) {
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r = a
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} else {
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r = b
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}
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// amd64/v3:"CMOVQEQ" -"TESTQ" -"CALL"
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return r * 2 // force return blocks joining
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}
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func isPowerOfTwoSelect32(x, a, b int32) int32 {
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var r int32
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// amd64/v3:"BLSRL" -"TESTL" -"CALL"
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if isPowerOfTwo32(x) {
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r = a
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} else {
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r = b
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}
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// amd64/v3:"CMOVLEQ" -"TESTL" -"CALL"
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return r * 2 // force return blocks joining
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}
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func isPowerOfTwoBranch64(x int64, a func(bool), b func(string)) {
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// amd64/v3:"BLSRQ" -"TESTQ" -"CALL"
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if isPowerOfTwo64(x) {
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a(true)
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} else {
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b("false")
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}
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}
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func isPowerOfTwoBranch32(x int32, a func(bool), b func(string)) {
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// amd64/v3:"BLSRL" -"TESTL" -"CALL"
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if isPowerOfTwo32(x) {
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a(true)
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} else {
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b("false")
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}
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}
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func isNotPowerOfTwo64(x int64) bool {
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// amd64/v3:"BLSRQ" -"TESTQ" -"CALL"
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return blsr64(x) != 0
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}
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func isNotPowerOfTwo32(x int32) bool {
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// amd64/v3:"BLSRL" -"TESTL" -"CALL"
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return blsr32(x) != 0
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}
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func isNotPowerOfTwoSelect64(x, a, b int64) int64 {
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var r int64
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// amd64/v3:"BLSRQ" -"TESTQ" -"CALL"
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if isNotPowerOfTwo64(x) {
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r = a
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} else {
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r = b
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}
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// amd64/v3:"CMOVQNE" -"TESTQ" -"CALL"
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return r * 2 // force return blocks joining
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}
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func isNotPowerOfTwoSelect32(x, a, b int32) int32 {
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var r int32
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// amd64/v3:"BLSRL" -"TESTL" -"CALL"
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if isNotPowerOfTwo32(x) {
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r = a
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} else {
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r = b
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}
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// amd64/v3:"CMOVLNE" -"TESTL" -"CALL"
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return r * 2 // force return blocks joining
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}
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func isNotPowerOfTwoBranch64(x int64, a func(bool), b func(string)) {
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// amd64/v3:"BLSRQ" -"TESTQ" -"CALL"
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if isNotPowerOfTwo64(x) {
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a(true)
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} else {
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b("false")
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}
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}
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func isNotPowerOfTwoBranch32(x int32, a func(bool), b func(string)) {
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// amd64/v3:"BLSRL" -"TESTL" -"CALL"
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if isNotPowerOfTwo32(x) {
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a(true)
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} else {
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b("false")
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}
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}
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func sarx64(x, y int64) int64 {
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// amd64/v3:"SARXQ"
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return x >> y
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}
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func sarx32(x, y int32) int32 {
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// amd64/v3:"SARXL"
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return x >> y
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}
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func sarx64_load(x []int64, i int) int64 {
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// amd64/v3: `SARXQ [A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*`
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s := x[i] >> (i & 63)
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// amd64/v3: `SARXQ [A-Z]+[0-9]*, 8\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*`
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s = x[i+1] >> (s & 63)
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return s
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}
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func sarx32_load(x []int32, i int) int32 {
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// amd64/v3: `SARXL [A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*`
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s := x[i] >> (i & 63)
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// amd64/v3: `SARXL [A-Z]+[0-9]*, 4\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*`
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s = x[i+1] >> (s & 63)
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return s
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}
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func shlrx64(x, y uint64) uint64 {
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// amd64/v3:"SHRXQ"
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s := x >> y
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// amd64/v3:"SHLXQ"
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s = s << y
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return s
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}
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func shlrx32(x, y uint32) uint32 {
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// amd64/v3:"SHRXL"
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s := x >> y
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// amd64/v3:"SHLXL"
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s = s << y
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return s
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}
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func shlrx64_load(x []uint64, i int, s uint64) uint64 {
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// amd64/v3: `SHRXQ [A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*`
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s = x[i] >> i
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// amd64/v3: `SHLXQ [A-Z]+[0-9]*, 8\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*8\), [A-Z]+[0-9]*`
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s = x[i+1] << s
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return s
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}
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func shlrx32_load(x []uint32, i int, s uint32) uint32 {
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// amd64/v3: `SHRXL [A-Z]+[0-9]*, \([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*`
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s = x[i] >> i
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// amd64/v3: `SHLXL [A-Z]+[0-9]*, 4\([A-Z]+[0-9]*\)\([A-Z]+[0-9]*\*4\), [A-Z]+[0-9]*`
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s = x[i+1] << s
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return s
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}
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