Adding upstream version 1.21.8.upstream/1.21.8

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/src/reflect/float32reg_generic.go b/src/reflect/float32reg_generic.go
new file mode 100644
index 0000000..23ad4bf
--- /dev/null
+++ b/src/reflect/float32reg_generic.go
@@ -0,0 +1,23 @@
+// 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.
+
+//go:build !ppc64 && !ppc64le && !riscv64
+
+package reflect
+
+import "unsafe"
+
+// This file implements a straightforward conversion of a float32
+// value into its representation in a register. This conversion
+// applies for amd64 and arm64. It is also chosen for the case of
+// zero argument registers, but is not used.
+
+func archFloat32FromReg(reg uint64) float32 {
+	i := uint32(reg)
+	return *(*float32)(unsafe.Pointer(&i))
+}
+
+func archFloat32ToReg(val float32) uint64 {
+	return uint64(*(*uint32)(unsafe.Pointer(&val)))
+}