Adding upstream version 1.20.14.upstream/1.20.14upstream

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

1 files changed, 34 insertions, 0 deletions

diff --git a/src/runtime/cpuflags.go b/src/runtime/cpuflags.go
new file mode 100644
index 0000000..bbe93c5
--- /dev/null
+++ b/src/runtime/cpuflags.go
@@ -0,0 +1,34 @@
+// 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 runtime
+
+import (
+	"internal/cpu"
+	"unsafe"
+)
+
+// Offsets into internal/cpu records for use in assembly.
+const (
+	offsetX86HasAVX    = unsafe.Offsetof(cpu.X86.HasAVX)
+	offsetX86HasAVX2   = unsafe.Offsetof(cpu.X86.HasAVX2)
+	offsetX86HasERMS   = unsafe.Offsetof(cpu.X86.HasERMS)
+	offsetX86HasRDTSCP = unsafe.Offsetof(cpu.X86.HasRDTSCP)
+
+	offsetARMHasIDIVA = unsafe.Offsetof(cpu.ARM.HasIDIVA)
+
+	offsetMIPS64XHasMSA = unsafe.Offsetof(cpu.MIPS64X.HasMSA)
+)
+
+var (
+	// Set in runtime.cpuinit.
+	// TODO: deprecate these; use internal/cpu directly.
+	x86HasPOPCNT bool
+	x86HasSSE41  bool
+	x86HasFMA    bool
+
+	armHasVFPv4 bool
+
+	arm64HasATOMICS bool
+)