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-rw-r--r--test/codegen/strings.go65
1 files changed, 65 insertions, 0 deletions
diff --git a/test/codegen/strings.go b/test/codegen/strings.go
new file mode 100644
index 0000000..a2c2fc0
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+++ b/test/codegen/strings.go
@@ -0,0 +1,65 @@
+// 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
+
+// This file contains code generation tests related to the handling of
+// string types.
+
+func CountRunes(s string) int { // Issue #24923
+ // amd64:`.*countrunes`
+ return len([]rune(s))
+}
+
+func ToByteSlice() []byte { // Issue #24698
+ // amd64:`LEAQ\ttype:\[3\]uint8`
+ // amd64:`CALL\truntime\.newobject`
+ // amd64:-`.*runtime.stringtoslicebyte`
+ return []byte("foo")
+}
+
+// Loading from read-only symbols should get transformed into constants.
+func ConstantLoad() {
+ // 12592 = 0x3130
+ // 50 = 0x32
+ // amd64:`MOVW\t\$12592, \(`,`MOVB\t\$50, 2\(`
+ // 386:`MOVW\t\$12592, \(`,`MOVB\t\$50, 2\(`
+ // arm:`MOVW\t\$48`,`MOVW\t\$49`,`MOVW\t\$50`
+ // arm64:`MOVD\t\$12592`,`MOVD\t\$50`
+ // wasm:`I64Const\t\$12592`,`I64Store16\t\$0`,`I64Const\t\$50`,`I64Store8\t\$2`
+ // mips64:`MOVV\t\$48`,`MOVV\t\$49`,`MOVV\t\$50`
+ bsink = []byte("012")
+
+ // 858927408 = 0x33323130
+ // 13620 = 0x3534
+ // amd64:`MOVL\t\$858927408`,`MOVW\t\$13620, 4\(`
+ // 386:`MOVL\t\$858927408`,`MOVW\t\$13620, 4\(`
+ // arm64:`MOVD\t\$858927408`,`MOVD\t\$13620`
+ // wasm:`I64Const\t\$858927408`,`I64Store32\t\$0`,`I64Const\t\$13620`,`I64Store16\t\$4`
+ bsink = []byte("012345")
+
+ // 3978425819141910832 = 0x3736353433323130
+ // 7306073769690871863 = 0x6564636261393837
+ // amd64:`MOVQ\t\$3978425819141910832`,`MOVQ\t\$7306073769690871863`
+ // 386:`MOVL\t\$858927408, \(`,`DUFFCOPY`
+ // arm64:`MOVD\t\$3978425819141910832`,`MOVD\t\$7306073769690871863`,`MOVD\t\$15`
+ // wasm:`I64Const\t\$3978425819141910832`,`I64Store\t\$0`,`I64Const\t\$7306073769690871863`,`I64Store\t\$7`
+ bsink = []byte("0123456789abcde")
+
+ // 56 = 0x38
+ // amd64:`MOVQ\t\$3978425819141910832`,`MOVB\t\$56`
+ bsink = []byte("012345678")
+
+ // 14648 = 0x3938
+ // amd64:`MOVQ\t\$3978425819141910832`,`MOVW\t\$14648`
+ bsink = []byte("0123456789")
+
+ // 1650538808 = 0x62613938
+ // amd64:`MOVQ\t\$3978425819141910832`,`MOVL\t\$1650538808`
+ bsink = []byte("0123456789ab")
+}
+
+var bsink []byte