Switch to using DEFINE_COMPILERRT_[PRIVATE_]FUNCTION to define function symbols inside .S files.

llvm-svn: 85264
diff --git a/compiler-rt/lib/arm/extendsfdf2vfp.S b/compiler-rt/lib/arm/extendsfdf2vfp.S
index ea251e2..8df97b5 100644
--- a/compiler-rt/lib/arm/extendsfdf2vfp.S
+++ b/compiler-rt/lib/arm/extendsfdf2vfp.S
@@ -16,8 +16,7 @@
 // Uses Darwin calling convention where a single precision parameter is 
 // passed in a GPR and a double precision result is returned in R0/R1 pair.
 //
-	.globl ___extendsfdf2vfp
-___extendsfdf2vfp:
+DEFINE_COMPILERRT_FUNCTION(__extendsfdf2vfp)
 	fmsr	s15, r0      // load float register from R0
 	fcvtds	d7, s15      // convert single to double
 	fmrrd	r0, r1, d7   // return result in r0/r1 pair