Custom lower bit_convert i64 -> f64 into FMDRR. This is now happening with legalizetypes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@58714 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/CodeGen/ARM/fixunsdfdi.ll b/test/CodeGen/ARM/fixunsdfdi.ll
new file mode 100644
index 0000000..d3038b9
--- /dev/null
+++ b/test/CodeGen/ARM/fixunsdfdi.ll
@@ -0,0 +1,29 @@
+; RUN: llvm-as < %s | llc -march=arm -mattr=+vfp2
+; RUN: llvm-as < %s | llc -march=arm -mattr=vfp2 | not grep fstd
+
+define hidden i64 @__fixunsdfdi(double %x) nounwind readnone {
+entry:
+	%x14 = bitcast double %x to i64		; <i64> [#uses=1]
+	br i1 true, label %bb3, label %bb10
+
+bb3:		; preds = %entry
+	br i1 true, label %bb5, label %bb7
+
+bb5:		; preds = %bb3
+	%u.in.mask = and i64 %x14, -4294967296		; <i64> [#uses=1]
+	%.ins = or i64 0, %u.in.mask		; <i64> [#uses=1]
+	%0 = bitcast i64 %.ins to double		; <double> [#uses=1]
+	%1 = sub double %x, %0		; <double> [#uses=1]
+	%2 = fptosi double %1 to i32		; <i32> [#uses=1]
+	%3 = add i32 %2, 0		; <i32> [#uses=1]
+	%4 = zext i32 %3 to i64		; <i64> [#uses=1]
+	%5 = shl i64 %4, 32		; <i64> [#uses=1]
+	%6 = or i64 %5, 0		; <i64> [#uses=1]
+	ret i64 %6
+
+bb7:		; preds = %bb3
+	ret i64 0
+
+bb10:		; preds = %entry
+	ret i64 0
+}