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-rw-r--r--test/fixedbugs/bug19403.go134
1 files changed, 134 insertions, 0 deletions
diff --git a/test/fixedbugs/bug19403.go b/test/fixedbugs/bug19403.go
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+++ b/test/fixedbugs/bug19403.go
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+// run
+
+// Copyright 2017 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 for golang.org/issue/19403.
+// F15 should not be clobbered by float-to-int conversion on ARM.
+// This test requires enough locals that can be put in registers that the compiler can choose to use F15.
+package main
+
+var count float32 = 16
+var i0 int
+var i1 int
+var i2 int
+var i3 int
+var i4 int
+var i5 int
+var i6 int
+var i7 int
+var i8 int
+var i9 int
+var i10 int
+var i11 int
+var i12 int
+var i13 int
+var i14 int
+var i15 int
+var i16 int
+
+func main() {
+ var f0 float32 = 0.0
+ var f1 float32 = 1.0
+ var f2 float32 = 2.0
+ var f3 float32 = 3.0
+ var f4 float32 = 4.0
+ var f5 float32 = 5.0
+ var f6 float32 = 6.0
+ var f7 float32 = 7.0
+ var f8 float32 = 8.0
+ var f9 float32 = 9.0
+ var f10 float32 = 10.0
+ var f11 float32 = 11.0
+ var f12 float32 = 12.0
+ var f13 float32 = 13.0
+ var f14 float32 = 14.0
+ var f15 float32 = 15.0
+ var f16 float32 = 16.0
+ i0 = int(f0)
+ i1 = int(f1)
+ i2 = int(f2)
+ i3 = int(f3)
+ i4 = int(f4)
+ i5 = int(f5)
+ i6 = int(f6)
+ i7 = int(f7)
+ i8 = int(f8)
+ i9 = int(f9)
+ i10 = int(f10)
+ i11 = int(f11)
+ i12 = int(f12)
+ i13 = int(f13)
+ i14 = int(f14)
+ i15 = int(f15)
+ i16 = int(f16)
+ if f16 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f15 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f14 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f13 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f12 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f11 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f10 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f9 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f8 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f7 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f6 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f5 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f4 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f3 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f2 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f1 != count {
+ panic("fail")
+ }
+ count -= 1
+ if f0 != count {
+ panic("fail")
+ }
+ count -= 1
+}