add conversion functions and test cases for ARM
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@81809 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/arm/floatunssisfvfp.S b/lib/arm/floatunssisfvfp.S
new file mode 100644
index 0000000..c832278
--- /dev/null
+++ b/lib/arm/floatunssisfvfp.S
@@ -0,0 +1,23 @@
+//===-- floatunssisfvfp.S - Implement floatunssisfvfp ---------------------===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+
+//
+// extern float __floatunssisfvfp(unsigned int a);
+//
+// Converts single precision float to a 32-bit int rounding towards zero.
+// Uses Darwin calling convention where a single precision result is
+// return in a GPR..
+//
+ .globl ___floatunssisfvfp
+___floatunssisfvfp:
+ fmsr s15, r0 // move int to float register s15
+ fuitos s15, s15 // convert 32-bit int in s15 to float in s15
+ fmrs r0, s15 // move s15 to result register
+ bx lr