Import libcompiler_rt into HEAD and add Makefiles.

Obtained from:	user/ed/compiler-rt

1 files changed, 24 insertions, 0 deletions

diff --git a/contrib/compiler-rt/lib/arm/divdf3vfp.S b/contrib/compiler-rt/lib/arm/divdf3vfp.S
new file mode 100644
index 0000000..e43baa3
--- /dev/null
+++ b/contrib/compiler-rt/lib/arm/divdf3vfp.S
@@ -0,0 +1,24 @@
+//===-- divdf3vfp.S - Implement divdf3vfp ---------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#include "../assembly.h"
+
+//
+// extern double __divdf3vfp(double a, double b);
+//
+// Divides two double precision floating point numbers using the Darwin
+// calling convention where double arguments are passsed in GPR pairs
+//
+	.align 2
+DEFINE_COMPILERRT_FUNCTION(__divdf3vfp)
+	fmdrr	d6, r0, r1		// move first param from r0/r1 pair into d6
+	fmdrr	d7, r2, r3		// move second param from r2/r3 pair into d7
+	fdivd	d5, d6, d7		
+	fmrrd	r0, r1, d5		// move result back to r0/r1 pair
+	bx	lr