Rebased PNaCl localmods in LLVM to 223109

test/NaCl/PNaClABI/abi-switch.ll

+; RUN: not pnacl-abicheck < %s | FileCheck %s
+
+@var = internal global [4 x i8] c"xxxx"
+
+
+; CHECK-NOT: disallowed
+
+define internal void @bad_cases() {
+  ; ConstantExprs should be rejected here.
+  switch i32 ptrtoint ([4 x i8]* @var to i32), label %next [i32 0, label %next]
+; CHECK: disallowed: bad switch condition
+next:
+
+  ; Bad integer type.
+  switch i32 0, label %next [i99 0, label %next]
+; CHECK: bad switch case
+
+  ; Bad integer type.
+  switch i32 0, label %next [i32 0, label %next
+                             i99 1, label %next]
+; CHECK: bad switch case
+
+  ; Note that the reader only allows ConstantInts in the label list.
+  ; We don't need to check the following, because the reader rejects
+  ; it:
+  ; switch i32 0, label %next [i32 ptrtoint (i32* @ptr to i32), label %next]
+
+  ret void
+}
+
+; CHECK-NOT: disallowed
+
+
+; This stops the verifier from complaining about the lack of an entry point.
+define void @_start(i32 %arg) {
+  ret void
+}