From ccd992355df7192993c666236047820244914598 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Tue, 16 Apr 2024 21:19:13 +0200 Subject: Adding upstream version 1.21.8. Signed-off-by: Daniel Baumann --- test/fixedbugs/issue14553.go | 45 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 45 insertions(+) create mode 100644 test/fixedbugs/issue14553.go (limited to 'test/fixedbugs/issue14553.go') diff --git a/test/fixedbugs/issue14553.go b/test/fixedbugs/issue14553.go new file mode 100644 index 0000000..d7ebb12 --- /dev/null +++ b/test/fixedbugs/issue14553.go @@ -0,0 +1,45 @@ +// run + +// Copyright 2016 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. + +// This test checks if the compiler's internal constant +// arithmetic correctly rounds denormal float32 values. + +package main + +import ( + "fmt" + "math" +) + +func main() { + for _, t := range []struct { + value float32 + bits uint32 + }{ + {0e+00, 0x00000000}, + {1e-46, 0x00000000}, + {0.5e-45, 0x00000000}, + {0.8e-45, 0x00000001}, + {1e-45, 0x00000001}, + {2e-45, 0x00000001}, + {3e-45, 0x00000002}, + {4e-45, 0x00000003}, + {5e-45, 0x00000004}, + {6e-45, 0x00000004}, + {7e-45, 0x00000005}, + {8e-45, 0x00000006}, + {9e-45, 0x00000006}, + {1.0e-44, 0x00000007}, + {1.1e-44, 0x00000008}, + {1.2e-44, 0x00000009}, + } { + got := math.Float32bits(t.value) + want := t.bits + if got != want { + panic(fmt.Sprintf("bits(%g) = 0x%08x; want 0x%08x", t.value, got, want)) + } + } +} -- cgit v1.2.3