Adding upstream version 1.21.8.upstream/1.21.8

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

1 files changed, 54 insertions, 0 deletions

diff --git a/test/fixedbugs/issue38356.go b/test/fixedbugs/issue38356.go
new file mode 100644
index 0000000..a1c7f46
--- /dev/null
+++ b/test/fixedbugs/issue38356.go
@@ -0,0 +1,54 @@
+// compile
+
+// Copyright 2020 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.
+
+// Make sure floating point operations that generate flags
+// are scheduled correctly on s390x.
+
+package p
+
+func f1(x, y float64, z int) float64 {
+	a := x + y  // generate flags
+	if z == 0 { // create basic block that does not clobber flags
+		return a
+	}
+	if a > 0 { // use flags in different basic block
+		return y
+	}
+	return x
+}
+
+func f2(x, y float64, z int) float64 {
+	a := x - y  // generate flags
+	if z == 0 { // create basic block that does not clobber flags
+		return a
+	}
+	if a > 0 { // use flags in different basic block
+		return y
+	}
+	return x
+}
+
+func f3(x, y float32, z int) float32 {
+	a := x + y  // generate flags
+	if z == 0 { // create basic block that does not clobber flags
+		return a
+	}
+	if a > 0 { // use flags in different basic block
+		return y
+	}
+	return x
+}
+
+func f4(x, y float32, z int) float32 {
+	a := x - y  // generate flags
+	if z == 0 { // create basic block that does not clobber flags
+		return a
+	}
+	if a > 0 { // use flags in different basic block
+		return y
+	}
+	return x
+}