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Diffstat (limited to '')
-rw-r--r-- | test/asmhdr.dir/main.go | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/test/asmhdr.dir/main.go b/test/asmhdr.dir/main.go new file mode 100644 index 0000000..4e1813d --- /dev/null +++ b/test/asmhdr.dir/main.go @@ -0,0 +1,72 @@ +// Copyright 2021 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 main + +import "unsafe" + +const ( + smallInt = 42 + + // For bigInt, we use a value that's too big for an int64, but still + // fits in uint64. go/constant uses a different representation for + // values larger than int64, but the cmd/asm parser can't parse + // anything bigger than a uint64. + bigInt = 0xffffffffffffffff + + stringVal = "test" + + longStringVal = "this_is_a_string_constant_longer_than_seventy_characters_which_used_to_fail_see_issue_50253" +) + +var ( + smallIntAsm int64 + bigIntAsm uint64 + stringAsm [len(stringVal)]byte + longStringAsm [len(longStringVal)]byte +) + +type typ struct { + a uint64 + b [100]uint8 + c uint8 +} + +var ( + typSize uint64 + + typA, typB, typC uint64 +) + +func main() { + if smallInt != smallIntAsm { + println("smallInt", smallInt, "!=", smallIntAsm) + } + if bigInt != bigIntAsm { + println("bigInt", uint64(bigInt), "!=", bigIntAsm) + } + if stringVal != string(stringAsm[:]) { + println("stringVal", stringVal, "!=", string(stringAsm[:])) + } + if longStringVal != string(longStringAsm[:]) { + println("longStringVal", longStringVal, "!=", string(longStringAsm[:])) + } + + // We also include boolean consts in go_asm.h, but they're + // defined to be "true" or "false", and it's not clear how to + // use that in assembly. + + if want := unsafe.Sizeof(typ{}); want != uintptr(typSize) { + println("typSize", want, "!=", typSize) + } + if want := unsafe.Offsetof(typ{}.a); want != uintptr(typA) { + println("typA", want, "!=", typA) + } + if want := unsafe.Offsetof(typ{}.b); want != uintptr(typB) { + println("typB", want, "!=", typB) + } + if want := unsafe.Offsetof(typ{}.c); want != uintptr(typC) { + println("typC", want, "!=", typC) + } +} |