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Diffstat (limited to '')
-rw-r--r-- | test/fixedbugs/issue32560.go | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/test/fixedbugs/issue32560.go b/test/fixedbugs/issue32560.go new file mode 100644 index 0000000..c6f72b6 --- /dev/null +++ b/test/fixedbugs/issue32560.go @@ -0,0 +1,51 @@ +// run + +// Copyright 2019 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. + +// Values smaller than 64-bits were mistakenly always proven to be +// non-negative. +// +// The tests here are marked go:noinline to ensure they're +// independently optimized by SSA. + +package main + +var x int32 = -1 + +//go:noinline +func a() { + if x != -1 { + panic(1) + } + if x > 0 || x != -1 { + panic(2) + } +} + +//go:noinline +func b() { + if x != -1 { + panic(3) + } + if x > 0 { + panic(4) + } +} + +//go:noinline +func c() { + if x > 0 || x != -1 { + panic(5) + } + if x > 0 || x != -1 { + panic(6) + } +} + +func main() { + a() + b() + c() +} |