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-rw-r--r--test/inline_math_bits_rotate.go28
1 files changed, 28 insertions, 0 deletions
diff --git a/test/inline_math_bits_rotate.go b/test/inline_math_bits_rotate.go
new file mode 100644
index 0000000..a0341ea
--- /dev/null
+++ b/test/inline_math_bits_rotate.go
@@ -0,0 +1,28 @@
+// +build amd64
+// errorcheck -0 -m
+
+// 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.
+
+// Test that inlining of math/bits.RotateLeft* treats those calls as intrinsics.
+
+package p
+
+import "math/bits"
+
+var (
+ x8 uint8
+ x16 uint16
+ x32 uint32
+ x64 uint64
+ x uint
+)
+
+func f() { // ERROR "can inline f"
+ x8 = bits.RotateLeft8(x8, 1)
+ x16 = bits.RotateLeft16(x16, 1)
+ x32 = bits.RotateLeft32(x32, 1)
+ x64 = bits.RotateLeft64(x64, 1)
+ x = bits.RotateLeft(x, 1)
+}