Test that converting from double to int64 results in one libcall, not one

and a dead one.  This is a legalize bug

llvm-svn: 23227

test/Regression/CodeGen/PowerPC/2005-09-02-LegalizeDuplicatesCalls.ll

@@ -0,0 +1,9 @@
+; This function should have exactly one call to fixdfdi, no more!
+
+; RUN: llvm-as < %s | llc -march=ppc32 | grep 'bl .*fixdfdi' | wc -l | grep 1
+
+double %test2(double %tmp.7705) {
+        %mem_tmp.2.0.in = cast double %tmp.7705 to long                ; <long> [#uses=1]
+        %mem_tmp.2.0 = cast long %mem_tmp.2.0.in to double
+	ret double %mem_tmp.2.0
+}