Use range tests in LowerSwitch, where possible

llvm-svn: 35057
diff --git a/llvm/test/Transforms/LowerSwitch/feature.ll b/llvm/test/Transforms/LowerSwitch/feature.ll
new file mode 100644
index 0000000..cb88e31
--- /dev/null
+++ b/llvm/test/Transforms/LowerSwitch/feature.ll
@@ -0,0 +1,50 @@
+; RUN: llvm-as %s -o - | opt -lowerswitch | llvm-dis | grep slt | wc -l | grep 10 &&
+; RUN: llvm-as %s -o - | opt -lowerswitch | llvm-dis | grep ule | wc -l | grep 3 &&
+; RUN: llvm-as %s -o - | opt -lowerswitch | llvm-dis | grep eq | wc -l | grep 9
+
+define i32 @main(i32 %tmp158) {
+entry:
+        switch i32 %tmp158, label %bb336 [
+                 i32 -2, label %bb338
+                 i32 -3, label %bb338
+                 i32 -4, label %bb338
+                 i32 -5, label %bb338
+                 i32 -6, label %bb338
+                 i32 0, label %bb338
+                 i32 1, label %bb338
+                 i32 2, label %bb338
+                 i32 3, label %bb338
+                 i32 4, label %bb338
+                 i32 5, label %bb338
+                 i32 6, label %bb338
+                 i32 7, label %bb
+                 i32 8, label %bb338
+                 i32 9, label %bb322
+                 i32 10, label %bb324
+                 i32 11, label %bb326
+                 i32 12, label %bb328
+                 i32 13, label %bb330
+                 i32 14, label %bb332
+                 i32 15, label %bb334
+        ]
+bb:
+  ret i32 2
+bb322:
+  ret i32 3
+bb324:
+  ret i32 4
+bb326:
+  ret i32 5
+bb328:
+  ret i32 6
+bb330:
+  ret i32 7
+bb332:
+  ret i32 8
+bb334:
+  ret i32 9
+bb336:
+  ret i32 10
+bb338:
+  ret i32 11
+}